TY  - CONF
AU  - Parezanović, Marina
AU  - Stojiljković, Maja
AU  - Anđelković, Marina
AU  - Stevanović, Nina
AU  - Spasovski, Vesna
AU  - Ugrin, Milena
AU  - Komazec, Jovana
AU  - Tošić, Nataša
AU  - Pavlović, Sonja
AU  - Celic, Dejan
AU  - Vučenović, Jelica
AU  - Skakić, Anita
PY  - 2023
UR  - https://imagine.imgge.bg.ac.rs/handle/123456789/2277
AB  - Background/Objectives: Fabry disease (FD) is a rare X-linked
disorder caused by variants in the GLA gene leading to the deficiency
of lysosomal α-galactosidase-A and progressive accumulation
of globotriaosylceramide affecting the heart, nervous system,
and kidneys. FD has overlapping phenotypes and often remains
undiagnosed. Therefore, the precise molecular-genetic diagnosis
and the earliest possible treatment are essential to avoid significant
disease progression.
Methods: We analyzed 95 (34 female and 61 male) hemodialysis
patients with clinical suspicion of FD using Sanger sequencing
of all coding exons (7) and flanking intron regions of the GLA
gene, and measured the relative expression of the GLA gene in
available samples.
Results: The genetic analysis revealed 3 patients with a missense
variant (p.Asp313Tyr), and 10 patients with combinations of
non-coding variants, described as complex intronic haplotypes
(CIHs). CIH1 (c.-10C>T, c.370-81_370-77delCAGCC, c.640-16A>G,
c.1000-22C>T), the most frequent haplotype, was detected in 7
(7.4%) patients. Lyso-Gb3 biomarker levels were within the normal
range in each tested patient. However, RT-qPCR analysis revealed
decreased relative expression of GLA gene in PBMC of 2 female
patients with CIH1 and one female patient carrying only c.-10C>T
variant by 9,1%, 7,4%, 46,3%, respectively, pointing out that further
analyses are needed to confirm/exclude FD in these patients.
Conclusion: Because the effects of CIHs are not yet fully
understood, our work highlights the importance of analyzing
intronic regions of the GLA gene as genetic modifiers and the
need to include expression analysis in the diagnostic algorithm.
PB  - Springer Nature
C3  - European Journal of Human Genetic
T1  - Molecular diagnosis of Fabry disease in patients with chronic renal failure of unknown etiology
EP  - 433
IS  - Supplement S1
SP  - 432
VL  - 31
DO  - 10.1038/s41431-023-01339-3
ER  - 

@conference{
author = "Parezanović, Marina and Stojiljković, Maja and Anđelković, Marina and Stevanović, Nina and Spasovski, Vesna and Ugrin, Milena and Komazec, Jovana and Tošić, Nataša and Pavlović, Sonja and Celic, Dejan and Vučenović, Jelica and Skakić, Anita",
year = "2023",
abstract = "Background/Objectives: Fabry disease (FD) is a rare X-linked
disorder caused by variants in the GLA gene leading to the deficiency
of lysosomal α-galactosidase-A and progressive accumulation
of globotriaosylceramide affecting the heart, nervous system,
and kidneys. FD has overlapping phenotypes and often remains
undiagnosed. Therefore, the precise molecular-genetic diagnosis
and the earliest possible treatment are essential to avoid significant
disease progression.
Methods: We analyzed 95 (34 female and 61 male) hemodialysis
patients with clinical suspicion of FD using Sanger sequencing
of all coding exons (7) and flanking intron regions of the GLA
gene, and measured the relative expression of the GLA gene in
available samples.
Results: The genetic analysis revealed 3 patients with a missense
variant (p.Asp313Tyr), and 10 patients with combinations of
non-coding variants, described as complex intronic haplotypes
(CIHs). CIH1 (c.-10C>T, c.370-81_370-77delCAGCC, c.640-16A>G,
c.1000-22C>T), the most frequent haplotype, was detected in 7
(7.4%) patients. Lyso-Gb3 biomarker levels were within the normal
range in each tested patient. However, RT-qPCR analysis revealed
decreased relative expression of GLA gene in PBMC of 2 female
patients with CIH1 and one female patient carrying only c.-10C>T
variant by 9,1%, 7,4%, 46,3%, respectively, pointing out that further
analyses are needed to confirm/exclude FD in these patients.
Conclusion: Because the effects of CIHs are not yet fully
understood, our work highlights the importance of analyzing
intronic regions of the GLA gene as genetic modifiers and the
need to include expression analysis in the diagnostic algorithm.",
publisher = "Springer Nature",
journal = "European Journal of Human Genetic",
title = "Molecular diagnosis of Fabry disease in patients with chronic renal failure of unknown etiology",
pages = "433-432",
number = "Supplement S1",
volume = "31",
doi = "10.1038/s41431-023-01339-3"
}

Parezanović, M., Stojiljković, M., Anđelković, M., Stevanović, N., Spasovski, V., Ugrin, M., Komazec, J., Tošić, N., Pavlović, S., Celic, D., Vučenović, J.,& Skakić, A.. (2023). Molecular diagnosis of Fabry disease in patients with chronic renal failure of unknown etiology. in European Journal of Human Genetic
Springer Nature., 31(Supplement S1), 432-433.
https://doi.org/10.1038/s41431-023-01339-3

Parezanović M, Stojiljković M, Anđelković M, Stevanović N, Spasovski V, Ugrin M, Komazec J, Tošić N, Pavlović S, Celic D, Vučenović J, Skakić A. Molecular diagnosis of Fabry disease in patients with chronic renal failure of unknown etiology. in European Journal of Human Genetic. 2023;31(Supplement S1):432-433.
doi:10.1038/s41431-023-01339-3 .

Parezanović, Marina, Stojiljković, Maja, Anđelković, Marina, Stevanović, Nina, Spasovski, Vesna, Ugrin, Milena, Komazec, Jovana, Tošić, Nataša, Pavlović, Sonja, Celic, Dejan, Vučenović, Jelica, Skakić, Anita, "Molecular diagnosis of Fabry disease in patients with chronic renal failure of unknown etiology" in European Journal of Human Genetic, 31, no. Supplement S1 (2023):432-433,
https://doi.org/10.1038/s41431-023-01339-3 . .

TY  - CONF
AU  - Stevanović, Nina
AU  - Anđelković, Marina
AU  - Skakić, Anita
AU  - Spasovski, Vesna
AU  - Stojiljković, Maja
AU  - Parezanović, Marina
AU  - Ugrin, Milena
AU  - Pavlović, Sonja
PY  - 2023
UR  - https://imagine.imgge.bg.ac.rs/handle/123456789/2275
AB  - Background/Objectives: Primary ciliary dyskinesia (PCD) is a
disease caused by impaired ciliary motility and mainly affects the
lungs and reproductive organs. Inheritance is autosomal recessive
and X-linked with more than 40 disease-causing genes, wherefore
PCD patients have diverse clinical manifestations, thus making
diagnosis difficult. The utility of next-generation sequencing (NGS)
technology for diagnostic purposes allows a better understanding
of the PCD genetic background. However, the identification of
specific disease-causing variants is challenging. The objective of
this study was to create a unique guideline that will enable the
standardization of the assessment of novel variants within PCD
associated genes.
Methods: The study included designing a pipeline for the classification
of the rare genetic variants detected using NGS. The pipeline
included in silico (translation, 3D-model, protein-protein interactions,
sequence conservation, posttranslational modifications) and functional
analysis (expressional analysis, Western Blot) of the variants.
Results: The designed pipeline consists of three steps: sequencing,
detection, and identification of genes/variants; classification of
variants according to their effect; and variant characterization using
in silico structural and functional analysis. The pipeline was validated
by the analysis of the variants detected in a disease-causing
gene (DNAI1) and the novel candidate gene (SPAG16).
Conclusion: The application of the pipeline resulted in the
identification of disease-causing variants, as well as pathogenicity
validation, through the analysis on transcriptional, translational,
and posttranslational levels.The application of created pipeline
leads to the confirmation of PCD diagnosis and enables a shift
from candidate to disease-causing gene.
PB  - Springer Nature
C3  - European Journal of Human Genetic
T1  - Unique pipeline for the assessment of novel genetic variants leads to confirmation of PCD diagnosis
EP  - 383
IS  - Supplement S1
SP  - 383
VL  - 31
DO  - 10.1038/s41431-023-01338-4
ER  - 

@conference{
author = "Stevanović, Nina and Anđelković, Marina and Skakić, Anita and Spasovski, Vesna and Stojiljković, Maja and Parezanović, Marina and Ugrin, Milena and Pavlović, Sonja",
year = "2023",
abstract = "Background/Objectives: Primary ciliary dyskinesia (PCD) is a
disease caused by impaired ciliary motility and mainly affects the
lungs and reproductive organs. Inheritance is autosomal recessive
and X-linked with more than 40 disease-causing genes, wherefore
PCD patients have diverse clinical manifestations, thus making
diagnosis difficult. The utility of next-generation sequencing (NGS)
technology for diagnostic purposes allows a better understanding
of the PCD genetic background. However, the identification of
specific disease-causing variants is challenging. The objective of
this study was to create a unique guideline that will enable the
standardization of the assessment of novel variants within PCD
associated genes.
Methods: The study included designing a pipeline for the classification
of the rare genetic variants detected using NGS. The pipeline
included in silico (translation, 3D-model, protein-protein interactions,
sequence conservation, posttranslational modifications) and functional
analysis (expressional analysis, Western Blot) of the variants.
Results: The designed pipeline consists of three steps: sequencing,
detection, and identification of genes/variants; classification of
variants according to their effect; and variant characterization using
in silico structural and functional analysis. The pipeline was validated
by the analysis of the variants detected in a disease-causing
gene (DNAI1) and the novel candidate gene (SPAG16).
Conclusion: The application of the pipeline resulted in the
identification of disease-causing variants, as well as pathogenicity
validation, through the analysis on transcriptional, translational,
and posttranslational levels.The application of created pipeline
leads to the confirmation of PCD diagnosis and enables a shift
from candidate to disease-causing gene.",
publisher = "Springer Nature",
journal = "European Journal of Human Genetic",
title = "Unique pipeline for the assessment of novel genetic variants leads to confirmation of PCD diagnosis",
pages = "383-383",
number = "Supplement S1",
volume = "31",
doi = "10.1038/s41431-023-01338-4"
}

Stevanović, N., Anđelković, M., Skakić, A., Spasovski, V., Stojiljković, M., Parezanović, M., Ugrin, M.,& Pavlović, S.. (2023). Unique pipeline for the assessment of novel genetic variants leads to confirmation of PCD diagnosis. in European Journal of Human Genetic
Springer Nature., 31(Supplement S1), 383-383.
https://doi.org/10.1038/s41431-023-01338-4

Stevanović N, Anđelković M, Skakić A, Spasovski V, Stojiljković M, Parezanović M, Ugrin M, Pavlović S. Unique pipeline for the assessment of novel genetic variants leads to confirmation of PCD diagnosis. in European Journal of Human Genetic. 2023;31(Supplement S1):383-383.
doi:10.1038/s41431-023-01338-4 .

Stevanović, Nina, Anđelković, Marina, Skakić, Anita, Spasovski, Vesna, Stojiljković, Maja, Parezanović, Marina, Ugrin, Milena, Pavlović, Sonja, "Unique pipeline for the assessment of novel genetic variants leads to confirmation of PCD diagnosis" in European Journal of Human Genetic, 31, no. Supplement S1 (2023):383-383,
https://doi.org/10.1038/s41431-023-01338-4 . .

TY  - CONF
AU  - Ugrin, Milena
AU  - Komazec, Jovana
AU  - Klaassen, Kristel
AU  - Skakić, Anita
AU  - Anđelković, Marina
AU  - Spasovski, Vesna
AU  - Stevanović, Nina
AU  - Parezanović, Marina
AU  - Stanković, Sara
AU  - Stojiljković, Maja
AU  - Pavlović, Sonja
PY  - 2023
UR  - https://imagine.imgge.bg.ac.rs/handle/123456789/2139
AB  - Introduction: Thalassemia syndromes are heterogeneous group of hereditary anemias characterized
by defects in the synthesis of hemoglobin (Hb) polypeptide chains. These disorders comprise thalassemias and thalassemic hemoglobin variants which are predominantly caused by mutationsin a- and
b-globin genes (HBA and HBB genes). Clinical manifestations of thalassemia syndromes range from
asymptomatic thalassemia minor to severe anemia in thalassemia major cases. The aim of thisstudy was
to update our previous findings on frequency of thalassemia mutations which result from a 13-year-old
systematic survey in Serbia.
Methods: Two hundred and fourteen patients from 149 unrelated families presented with hematological parameters indicative of thalassemia syndromes were studied. Detection of α- and β-globin gene
mutations was performed using PCR and direct sequencing.
Results: Two Hb variants and twelve different β-thalassemia mutations, including two mutations previously not reported in Serbian population, were detected. Hb variant Lepore Boston-Washington wasthe
most common cause of thalassemia, with frequency of 24.3%, followed by HBB:c.316-106C>G mutation
detected in 18.1% of families. The third most frequent cause of β-thalassemia were HBB:c.118C>T and
HBB:c.93-21G>A mutations with 16.6% incidence each. Together, these four variants account for over
75% of all mutated β-globin alleles. In addition, five families affected with α-thalassemia were detected.
Conclusion: Despite the increase in cohort size by 50% between this and our previous studies, the frequency of mutations affecting HBB gene remained unchanged. Results presented in this study will update Serbian national mutation database and contribute to better understanding of geographic history
of South European and Balkan populations.
PB  - Institute of Molecular Genetics and Genetic Engineering (IMGGE), University of Belgrade
C3  - CoMBoS2 – the Second Congress of Molecular Biologists of Serbia, Abstract Book – Trends in Molecular Biology, Special issue 06-08 October 2023, Belgrade, Serbia
T1  - Molecular basis of thalassemia syndromes in Serbia: an update
EP  - 86
SP  - 86
UR  - https://hdl.handle.net/21.15107/rcub_imagine_2139
ER  - 

@conference{
author = "Ugrin, Milena and Komazec, Jovana and Klaassen, Kristel and Skakić, Anita and Anđelković, Marina and Spasovski, Vesna and Stevanović, Nina and Parezanović, Marina and Stanković, Sara and Stojiljković, Maja and Pavlović, Sonja",
year = "2023",
abstract = "Introduction: Thalassemia syndromes are heterogeneous group of hereditary anemias characterized
by defects in the synthesis of hemoglobin (Hb) polypeptide chains. These disorders comprise thalassemias and thalassemic hemoglobin variants which are predominantly caused by mutationsin a- and
b-globin genes (HBA and HBB genes). Clinical manifestations of thalassemia syndromes range from
asymptomatic thalassemia minor to severe anemia in thalassemia major cases. The aim of thisstudy was
to update our previous findings on frequency of thalassemia mutations which result from a 13-year-old
systematic survey in Serbia.
Methods: Two hundred and fourteen patients from 149 unrelated families presented with hematological parameters indicative of thalassemia syndromes were studied. Detection of α- and β-globin gene
mutations was performed using PCR and direct sequencing.
Results: Two Hb variants and twelve different β-thalassemia mutations, including two mutations previously not reported in Serbian population, were detected. Hb variant Lepore Boston-Washington wasthe
most common cause of thalassemia, with frequency of 24.3%, followed by HBB:c.316-106C>G mutation
detected in 18.1% of families. The third most frequent cause of β-thalassemia were HBB:c.118C>T and
HBB:c.93-21G>A mutations with 16.6% incidence each. Together, these four variants account for over
75% of all mutated β-globin alleles. In addition, five families affected with α-thalassemia were detected.
Conclusion: Despite the increase in cohort size by 50% between this and our previous studies, the frequency of mutations affecting HBB gene remained unchanged. Results presented in this study will update Serbian national mutation database and contribute to better understanding of geographic history
of South European and Balkan populations.",
publisher = "Institute of Molecular Genetics and Genetic Engineering (IMGGE), University of Belgrade",
journal = "CoMBoS2 – the Second Congress of Molecular Biologists of Serbia, Abstract Book – Trends in Molecular Biology, Special issue 06-08 October 2023, Belgrade, Serbia",
title = "Molecular basis of thalassemia syndromes in Serbia: an update",
pages = "86-86",
url = "https://hdl.handle.net/21.15107/rcub_imagine_2139"
}

Ugrin, M., Komazec, J., Klaassen, K., Skakić, A., Anđelković, M., Spasovski, V., Stevanović, N., Parezanović, M., Stanković, S., Stojiljković, M.,& Pavlović, S.. (2023). Molecular basis of thalassemia syndromes in Serbia: an update. in CoMBoS2 – the Second Congress of Molecular Biologists of Serbia, Abstract Book – Trends in Molecular Biology, Special issue 06-08 October 2023, Belgrade, Serbia
Institute of Molecular Genetics and Genetic Engineering (IMGGE), University of Belgrade., 86-86.
https://hdl.handle.net/21.15107/rcub_imagine_2139

Ugrin M, Komazec J, Klaassen K, Skakić A, Anđelković M, Spasovski V, Stevanović N, Parezanović M, Stanković S, Stojiljković M, Pavlović S. Molecular basis of thalassemia syndromes in Serbia: an update. in CoMBoS2 – the Second Congress of Molecular Biologists of Serbia, Abstract Book – Trends in Molecular Biology, Special issue 06-08 October 2023, Belgrade, Serbia. 2023;:86-86.
https://hdl.handle.net/21.15107/rcub_imagine_2139 .

Ugrin, Milena, Komazec, Jovana, Klaassen, Kristel, Skakić, Anita, Anđelković, Marina, Spasovski, Vesna, Stevanović, Nina, Parezanović, Marina, Stanković, Sara, Stojiljković, Maja, Pavlović, Sonja, "Molecular basis of thalassemia syndromes in Serbia: an update" in CoMBoS2 – the Second Congress of Molecular Biologists of Serbia, Abstract Book – Trends in Molecular Biology, Special issue 06-08 October 2023, Belgrade, Serbia (2023):86-86,
https://hdl.handle.net/21.15107/rcub_imagine_2139 .

TY  - CONF
AU  - Parezanović, Marina
AU  - Stevanović, Nina
AU  - Anđelković, Marina
AU  - Ugrin, Milena
AU  - Pavlović, Sonja
AU  - Stojiljković, Maja
AU  - Skakić, Anita
PY  - 2023
UR  - https://imagine.imgge.bg.ac.rs/handle/123456789/2176
AB  - Background: The current therapy for glycogen
storage disease Ib (GSD Ib) fails to prevent the
development of renal dysfunction, and hepatocellular/
renal carcinoma in many patients. Therefore,
new therapies for the treatment of life-threatening
complications of GSD Ib are of great interest. Recent
studies revealed that chronic endoplasmic reticulum
(ER) stress and increased apoptosis are
involved in pathogenesis of GSD Ib, whereas small
molecule phenylbutyrate (4-PBA) showed the capability
of reducing ER stress-induced apoptosis.
Methods: To analyze the function of 4-PBA
as ER stress inhibitor, we created a G6PT-deficient
FlpInHEK293 cell line using the CRISPR/Cas9
knockout method and tested if 4-PBA could decrease
chronic metabolic stress and prevent cell
death. We analyzed molecular markers of unfolded
protein response (ATF4, DDIT3, HSPA5, XBP1s),
and apoptosis (BCL2/BAX, CASP3, CASP7) in
G6PT-deficient cells before and upon the treatment
using RT-qPCR method.Results: Treatment with the most effective
dose of 1 mM 4-PBA reduced the expression of
executioner caspases (CASP3, CASP7) and increased
the BCL2/BAX ratio, indicating a reduced
apoptosis level. Additionally, 4-PBA decreased
UPR marker expression in G6PT-deficient cells.
Our results proved the concept that 4-PBA could
alleviate markers of ER stress detected in the GSD
Ib in vitro model system and prevent cell death.
Conclusion: We demonstrated, for the first
time, the potential of 4-PBA to be repurposed for
patients with GSD Ib and open perspectives for
translational research that could contribute to a
knowledge of GSD Ib treatments and other genetic
diseases where chronic ER stress-induced apoptosis
contribute to the disease pathology.
PB  - International Journal of Medical Genetic
C3  - International Journal of Medical Genetics
T1  - PHENYLBUTYRIC ACID REDUCES MOLECULAR MARKERS OF ER STRESS-INDUCED APOPTOSIS IN GLYCOGEN STORAGE DISEASE TYPE IB IN VITRO MODEL SYSTEM
EP  - 54
IS  - Supplement
SP  - 54
VL  - 26
UR  - https://hdl.handle.net/21.15107/rcub_imagine_2176
ER  - 

@conference{
author = "Parezanović, Marina and Stevanović, Nina and Anđelković, Marina and Ugrin, Milena and Pavlović, Sonja and Stojiljković, Maja and Skakić, Anita",
year = "2023",
abstract = "Background: The current therapy for glycogen
storage disease Ib (GSD Ib) fails to prevent the
development of renal dysfunction, and hepatocellular/
renal carcinoma in many patients. Therefore,
new therapies for the treatment of life-threatening
complications of GSD Ib are of great interest. Recent
studies revealed that chronic endoplasmic reticulum
(ER) stress and increased apoptosis are
involved in pathogenesis of GSD Ib, whereas small
molecule phenylbutyrate (4-PBA) showed the capability
of reducing ER stress-induced apoptosis.
Methods: To analyze the function of 4-PBA
as ER stress inhibitor, we created a G6PT-deficient
FlpInHEK293 cell line using the CRISPR/Cas9
knockout method and tested if 4-PBA could decrease
chronic metabolic stress and prevent cell
death. We analyzed molecular markers of unfolded
protein response (ATF4, DDIT3, HSPA5, XBP1s),
and apoptosis (BCL2/BAX, CASP3, CASP7) in
G6PT-deficient cells before and upon the treatment
using RT-qPCR method.Results: Treatment with the most effective
dose of 1 mM 4-PBA reduced the expression of
executioner caspases (CASP3, CASP7) and increased
the BCL2/BAX ratio, indicating a reduced
apoptosis level. Additionally, 4-PBA decreased
UPR marker expression in G6PT-deficient cells.
Our results proved the concept that 4-PBA could
alleviate markers of ER stress detected in the GSD
Ib in vitro model system and prevent cell death.
Conclusion: We demonstrated, for the first
time, the potential of 4-PBA to be repurposed for
patients with GSD Ib and open perspectives for
translational research that could contribute to a
knowledge of GSD Ib treatments and other genetic
diseases where chronic ER stress-induced apoptosis
contribute to the disease pathology.",
publisher = "International Journal of Medical Genetic",
journal = "International Journal of Medical Genetics",
title = "PHENYLBUTYRIC ACID REDUCES MOLECULAR MARKERS OF ER STRESS-INDUCED APOPTOSIS IN GLYCOGEN STORAGE DISEASE TYPE IB IN VITRO MODEL SYSTEM",
pages = "54-54",
number = "Supplement",
volume = "26",
url = "https://hdl.handle.net/21.15107/rcub_imagine_2176"
}

Parezanović, M., Stevanović, N., Anđelković, M., Ugrin, M., Pavlović, S., Stojiljković, M.,& Skakić, A.. (2023). PHENYLBUTYRIC ACID REDUCES MOLECULAR MARKERS OF ER STRESS-INDUCED APOPTOSIS IN GLYCOGEN STORAGE DISEASE TYPE IB IN VITRO MODEL SYSTEM. in International Journal of Medical Genetics
International Journal of Medical Genetic., 26(Supplement), 54-54.
https://hdl.handle.net/21.15107/rcub_imagine_2176

Parezanović M, Stevanović N, Anđelković M, Ugrin M, Pavlović S, Stojiljković M, Skakić A. PHENYLBUTYRIC ACID REDUCES MOLECULAR MARKERS OF ER STRESS-INDUCED APOPTOSIS IN GLYCOGEN STORAGE DISEASE TYPE IB IN VITRO MODEL SYSTEM. in International Journal of Medical Genetics. 2023;26(Supplement):54-54.
https://hdl.handle.net/21.15107/rcub_imagine_2176 .

Parezanović, Marina, Stevanović, Nina, Anđelković, Marina, Ugrin, Milena, Pavlović, Sonja, Stojiljković, Maja, Skakić, Anita, "PHENYLBUTYRIC ACID REDUCES MOLECULAR MARKERS OF ER STRESS-INDUCED APOPTOSIS IN GLYCOGEN STORAGE DISEASE TYPE IB IN VITRO MODEL SYSTEM" in International Journal of Medical Genetics, 26, no. Supplement (2023):54-54,
https://hdl.handle.net/21.15107/rcub_imagine_2176 .

TY  - CONF
AU  - Skakić, Anita
AU  - Stevanović, Nina
AU  - Spasovski, Vesna
AU  - Parezanović, Marina
AU  - Ugrin, Milena
AU  - Komazec, Jovana
AU  - Klaassen, Kristel
AU  - Stanković, Sara
AU  - Pavlović, Sonja
AU  - Stojiljković, Maja
AU  - Anđelković, Marina
PY  - 2023
UR  - https://imagine.imgge.bg.ac.rs/handle/123456789/1903
AB  - Primary ciliary dyskinesia (PCD) is a rare motor ciliopathy, which predominantly affects the lungs and
reproductive organs. PCD has a heterogeneous genetic basis, and it is necessary to analyze more than
40 causative genes in order to establish a precise diagnosis, which is essential for optimal treatment and
adequate genetic counseling. Five patients suspected of PCD were analyzed using next-generation
sequencing (NGS). The pathogenicity of the genetic variants was tested by in silico, qRT-PCR and
Western blot methods. Two newly discovered variants p.N450Lfs*6 and p.D562N in the DNAI1 gene
were detected in one patient suspected of PCD. The results of in silico prediction showed that the
p.N450Lfs*6 variant affects the structure of the 3D model of the protein, abolishes ligand binding sites
and post-translational modifications, thereby disrupting protein-protein interactions (PPI). The
p.D562N variant has no effect on the 3D structure of the protein, but affects the ligand binding site and
is located in the WD-40 domain, which most likely disrupts PPI. The results of the qRT-PCR method
showed a decreased expression level of DNAI1 mRNA by about 50% in the patient compared to the
control group, while Western blot analysis showed the presence of two protein products (699 ak and
455 ak). By analyzing the obtained results, it was concluded that the changes p.N450Lfs*6 and
p.D562N affect the length and quantity of the DNAI1 protein, leading to the loss of protein function
and are responsible for the occurrence of primary ciliary dyskinesia in the analyzed patient.
PB  - Sarajevo : Institute for Genetic Engineering and Biotechnology, University of Sarajevo
C3  - Genetics & Applications
T1  - Functional characterization of novel variants in the dnai1 gene in a patient with primary ciliary dyskinesia
IS  - 2 (Special edition)
SP  - 110
VL  - 7
UR  - https://hdl.handle.net/21.15107/rcub_imagine_1903
ER  - 

@conference{
author = "Skakić, Anita and Stevanović, Nina and Spasovski, Vesna and Parezanović, Marina and Ugrin, Milena and Komazec, Jovana and Klaassen, Kristel and Stanković, Sara and Pavlović, Sonja and Stojiljković, Maja and Anđelković, Marina",
year = "2023",
abstract = "Primary ciliary dyskinesia (PCD) is a rare motor ciliopathy, which predominantly affects the lungs and
reproductive organs. PCD has a heterogeneous genetic basis, and it is necessary to analyze more than
40 causative genes in order to establish a precise diagnosis, which is essential for optimal treatment and
adequate genetic counseling. Five patients suspected of PCD were analyzed using next-generation
sequencing (NGS). The pathogenicity of the genetic variants was tested by in silico, qRT-PCR and
Western blot methods. Two newly discovered variants p.N450Lfs*6 and p.D562N in the DNAI1 gene
were detected in one patient suspected of PCD. The results of in silico prediction showed that the
p.N450Lfs*6 variant affects the structure of the 3D model of the protein, abolishes ligand binding sites
and post-translational modifications, thereby disrupting protein-protein interactions (PPI). The
p.D562N variant has no effect on the 3D structure of the protein, but affects the ligand binding site and
is located in the WD-40 domain, which most likely disrupts PPI. The results of the qRT-PCR method
showed a decreased expression level of DNAI1 mRNA by about 50% in the patient compared to the
control group, while Western blot analysis showed the presence of two protein products (699 ak and
455 ak). By analyzing the obtained results, it was concluded that the changes p.N450Lfs*6 and
p.D562N affect the length and quantity of the DNAI1 protein, leading to the loss of protein function
and are responsible for the occurrence of primary ciliary dyskinesia in the analyzed patient.",
publisher = "Sarajevo : Institute for Genetic Engineering and Biotechnology, University of Sarajevo",
journal = "Genetics & Applications",
title = "Functional characterization of novel variants in the dnai1 gene in a patient with primary ciliary dyskinesia",
number = "2 (Special edition)",
pages = "110",
volume = "7",
url = "https://hdl.handle.net/21.15107/rcub_imagine_1903"
}

Skakić, A., Stevanović, N., Spasovski, V., Parezanović, M., Ugrin, M., Komazec, J., Klaassen, K., Stanković, S., Pavlović, S., Stojiljković, M.,& Anđelković, M.. (2023). Functional characterization of novel variants in the dnai1 gene in a patient with primary ciliary dyskinesia. in Genetics & Applications
Sarajevo : Institute for Genetic Engineering and Biotechnology, University of Sarajevo., 7(2 (Special edition)), 110.
https://hdl.handle.net/21.15107/rcub_imagine_1903

Skakić A, Stevanović N, Spasovski V, Parezanović M, Ugrin M, Komazec J, Klaassen K, Stanković S, Pavlović S, Stojiljković M, Anđelković M. Functional characterization of novel variants in the dnai1 gene in a patient with primary ciliary dyskinesia. in Genetics & Applications. 2023;7(2 (Special edition)):110.
https://hdl.handle.net/21.15107/rcub_imagine_1903 .

Skakić, Anita, Stevanović, Nina, Spasovski, Vesna, Parezanović, Marina, Ugrin, Milena, Komazec, Jovana, Klaassen, Kristel, Stanković, Sara, Pavlović, Sonja, Stojiljković, Maja, Anđelković, Marina, "Functional characterization of novel variants in the dnai1 gene in a patient with primary ciliary dyskinesia" in Genetics & Applications, 7, no. 2 (Special edition) (2023):110,
https://hdl.handle.net/21.15107/rcub_imagine_1903 .

TY  - CONF
AU  - Parezanović, Marina
AU  - Anđelković, Marina
AU  - Stevanović, Nina
AU  - Klaassen, Kristel
AU  - Spasovski, Vesna
AU  - Ugrin, Milena
AU  - Komazec, Jovana
AU  - Stanković, Sara
AU  - Jocić, Nikola
AU  - Pavlović, Sonja
AU  - Stojiljković, Maja
AU  - Skakić, Anita
PY  - 2023
UR  - https://imagine.imgge.bg.ac.rs/handle/123456789/2121
AB  - Introduction: Glycogen storage disease type Ib (GSD-Ib) is an autosomal recessive disorder characterized by fasting hypoglycemia and the accumulation of glycogen in the liver, kidneys and intestinal mucosa. Recent studies revealed that chronic endoplasmic reticulum (ER) stress and increased apoptosis
play a role in the progression of disease manifestations. Although dietary control is commonly utilized
to manage hypoglycemia, there is still a lack of effective pharmacological therapy. Therefore, the establishment of proper model system is essential for testing novel treatment approaches.
Methods: To create GSD-Ib in vitro model system, CRISPR/Cas9-knockout (KO) method was used to introduce a deletion in SLC37A4 gene in the FlpInHEK293 cells. Characterization of CRISPR/Cas9-KO model
system was performed using Sanger sequencing, RT-qPCR and Western Blot. Additionally, the expression analysis of ER stress and apoptotic markers was performed.
Results: Sanger sequencing confirmed the presence of c.14_100del in SLC37A4 gene. The expression
level of SLC37A4 was decreased to 26.8% in the SLC37A4-/- cell line compared to the SLC37A4 wild-type
along with Western blot analysis, which confirmed reduced target protein level in SLC37A4-/- clones. Furthermore, ER stress (ATF4, DDIT3, HSPA5, XBP1s) and apoptotic (BCL2, BAX, CASP3, CASP7) markers expression levels were significantly altered in SLC37A4-/- clones compared to wild-type, which proved that
we created a suitable GSD-Ib in vitro model system.
Conclusion: Utilizing CRISPR/Cas9 technology, we established cellular GSD-Ib modelsystem that mirrors
increased ER stress and apoptosis. This model system could be used to facilitate a comprehensive understanding of disease mechanisms and enable testing of potential treatment effectiveness.
PB  - Institute of Molecular Genetics and Genetic Engineering (IMGGE), University of Belgrade
C3  - CoMBoS2 – the Second Congress of Molecular Biologists of Serbia, Abstract Book – Trends in Molecular Biology, Special issue 06-08 October 2023, Belgrade, Serbia
T1  - Application of CRISPR/cas9 technology for in vitro disease modelling in glycogen storage disease type IB
EP  - 65
SP  - 65
UR  - https://hdl.handle.net/21.15107/rcub_imagine_2121
ER  - 

@conference{
author = "Parezanović, Marina and Anđelković, Marina and Stevanović, Nina and Klaassen, Kristel and Spasovski, Vesna and Ugrin, Milena and Komazec, Jovana and Stanković, Sara and Jocić, Nikola and Pavlović, Sonja and Stojiljković, Maja and Skakić, Anita",
year = "2023",
abstract = "Introduction: Glycogen storage disease type Ib (GSD-Ib) is an autosomal recessive disorder characterized by fasting hypoglycemia and the accumulation of glycogen in the liver, kidneys and intestinal mucosa. Recent studies revealed that chronic endoplasmic reticulum (ER) stress and increased apoptosis
play a role in the progression of disease manifestations. Although dietary control is commonly utilized
to manage hypoglycemia, there is still a lack of effective pharmacological therapy. Therefore, the establishment of proper model system is essential for testing novel treatment approaches.
Methods: To create GSD-Ib in vitro model system, CRISPR/Cas9-knockout (KO) method was used to introduce a deletion in SLC37A4 gene in the FlpInHEK293 cells. Characterization of CRISPR/Cas9-KO model
system was performed using Sanger sequencing, RT-qPCR and Western Blot. Additionally, the expression analysis of ER stress and apoptotic markers was performed.
Results: Sanger sequencing confirmed the presence of c.14_100del in SLC37A4 gene. The expression
level of SLC37A4 was decreased to 26.8% in the SLC37A4-/- cell line compared to the SLC37A4 wild-type
along with Western blot analysis, which confirmed reduced target protein level in SLC37A4-/- clones. Furthermore, ER stress (ATF4, DDIT3, HSPA5, XBP1s) and apoptotic (BCL2, BAX, CASP3, CASP7) markers expression levels were significantly altered in SLC37A4-/- clones compared to wild-type, which proved that
we created a suitable GSD-Ib in vitro model system.
Conclusion: Utilizing CRISPR/Cas9 technology, we established cellular GSD-Ib modelsystem that mirrors
increased ER stress and apoptosis. This model system could be used to facilitate a comprehensive understanding of disease mechanisms and enable testing of potential treatment effectiveness.",
publisher = "Institute of Molecular Genetics and Genetic Engineering (IMGGE), University of Belgrade",
journal = "CoMBoS2 – the Second Congress of Molecular Biologists of Serbia, Abstract Book – Trends in Molecular Biology, Special issue 06-08 October 2023, Belgrade, Serbia",
title = "Application of CRISPR/cas9 technology for in vitro disease modelling in glycogen storage disease type IB",
pages = "65-65",
url = "https://hdl.handle.net/21.15107/rcub_imagine_2121"
}

Parezanović, M., Anđelković, M., Stevanović, N., Klaassen, K., Spasovski, V., Ugrin, M., Komazec, J., Stanković, S., Jocić, N., Pavlović, S., Stojiljković, M.,& Skakić, A.. (2023). Application of CRISPR/cas9 technology for in vitro disease modelling in glycogen storage disease type IB. in CoMBoS2 – the Second Congress of Molecular Biologists of Serbia, Abstract Book – Trends in Molecular Biology, Special issue 06-08 October 2023, Belgrade, Serbia
Institute of Molecular Genetics and Genetic Engineering (IMGGE), University of Belgrade., 65-65.
https://hdl.handle.net/21.15107/rcub_imagine_2121

Parezanović M, Anđelković M, Stevanović N, Klaassen K, Spasovski V, Ugrin M, Komazec J, Stanković S, Jocić N, Pavlović S, Stojiljković M, Skakić A. Application of CRISPR/cas9 technology for in vitro disease modelling in glycogen storage disease type IB. in CoMBoS2 – the Second Congress of Molecular Biologists of Serbia, Abstract Book – Trends in Molecular Biology, Special issue 06-08 October 2023, Belgrade, Serbia. 2023;:65-65.
https://hdl.handle.net/21.15107/rcub_imagine_2121 .

Parezanović, Marina, Anđelković, Marina, Stevanović, Nina, Klaassen, Kristel, Spasovski, Vesna, Ugrin, Milena, Komazec, Jovana, Stanković, Sara, Jocić, Nikola, Pavlović, Sonja, Stojiljković, Maja, Skakić, Anita, "Application of CRISPR/cas9 technology for in vitro disease modelling in glycogen storage disease type IB" in CoMBoS2 – the Second Congress of Molecular Biologists of Serbia, Abstract Book – Trends in Molecular Biology, Special issue 06-08 October 2023, Belgrade, Serbia (2023):65-65,
https://hdl.handle.net/21.15107/rcub_imagine_2121 .

TY  - CONF
AU  - Parezanović, Marina
AU  - Anđelković, Marina
AU  - Stevanović, Nina
AU  - Spasovski, Vesna
AU  - Ugrin, Milena
AU  - Komazec, Jovana
AU  - Klaassen, Kristel
AU  - Stanković, Sara
AU  - Pavlović, Sonja
AU  - Stojiljković, Maja
AU  - Skakić, Anita
PY  - 2023
UR  - https://imagine.imgge.bg.ac.rs/handle/123456789/1901
AB  - Fabry disease (FD) is a rare X-linked disorder caused by variants in the GLA gene leading to the
deficiency of lysosomal α-galactosidase-A and progressive accumulation of globotriaosylceramide
affecting the heart, nervous system, and kidneys. FD has overlapping phenotypes and often remains
undiagnosed. Therefore, a precise molecular-genetic diagnosis and the earliest possible treatment are
essential to avoid significant disease progression. The study aimed to determine the strategy for
establishing routine molecular genetic diagnostics of FD in Serbia to provide an early application of
appropriate therapy and genetic advice to families with a high risk for the birth of a child with FD. We
analyzed 95 (34 female and 61 male) hemodialysis patients with clinical suspicion of FD using Sanger
sequencing of all coding exons (7) and flanking intron regions of the GLA gene and measured the
relative expression of the GLA gene in available samples. The genetic analysis revealed 3 patients with
a missense variant (p.Asp313Tyr), and 10 patients with combinations of non-coding variants, described
as complex intronic haplotypes (CIHs). CIH1 (c.-10C>T, c.370-81_370-77delCAGCC, c.640-16A>G,
c.1000-22C>T), the most frequent haplotype, was detected in 7 (7.4%) patients. Lyso-Gb3 biomarker
levels were within the normal range in each tested patient. However, RT-qPCR analysis revealed
decreased relative expression of the GLA gene in PBMC of 2 female patients with CIH1 and one
female patient carrying only c.-10C>T variant by 9,1%, 7,4%, 46,3%, respectively, pointing out that
further analyses are needed to confirm/exclude FD in these patients. Because the effects of CIHs are not
yet fully understood, our work highlights the importance of analyzing intronic regions of the GLA gene
as genetic modifiers and the need to include expression analysis in the diagnostic algorithm.
PB  - Sarajevo : Institute for Genetic Engineering and Biotechnology, University of Sarajevo
C3  - Genetics & Applications
T1  - High-risk population screening for fabry disease in patients with chronic renal failure of unknown etiology
IS  - 2 (Special edition)
IS  - 107
VL  - 7
UR  - https://hdl.handle.net/21.15107/rcub_imagine_1901
ER  - 

@conference{
author = "Parezanović, Marina and Anđelković, Marina and Stevanović, Nina and Spasovski, Vesna and Ugrin, Milena and Komazec, Jovana and Klaassen, Kristel and Stanković, Sara and Pavlović, Sonja and Stojiljković, Maja and Skakić, Anita",
year = "2023",
abstract = "Fabry disease (FD) is a rare X-linked disorder caused by variants in the GLA gene leading to the
deficiency of lysosomal α-galactosidase-A and progressive accumulation of globotriaosylceramide
affecting the heart, nervous system, and kidneys. FD has overlapping phenotypes and often remains
undiagnosed. Therefore, a precise molecular-genetic diagnosis and the earliest possible treatment are
essential to avoid significant disease progression. The study aimed to determine the strategy for
establishing routine molecular genetic diagnostics of FD in Serbia to provide an early application of
appropriate therapy and genetic advice to families with a high risk for the birth of a child with FD. We
analyzed 95 (34 female and 61 male) hemodialysis patients with clinical suspicion of FD using Sanger
sequencing of all coding exons (7) and flanking intron regions of the GLA gene and measured the
relative expression of the GLA gene in available samples. The genetic analysis revealed 3 patients with
a missense variant (p.Asp313Tyr), and 10 patients with combinations of non-coding variants, described
as complex intronic haplotypes (CIHs). CIH1 (c.-10C>T, c.370-81_370-77delCAGCC, c.640-16A>G,
c.1000-22C>T), the most frequent haplotype, was detected in 7 (7.4%) patients. Lyso-Gb3 biomarker
levels were within the normal range in each tested patient. However, RT-qPCR analysis revealed
decreased relative expression of the GLA gene in PBMC of 2 female patients with CIH1 and one
female patient carrying only c.-10C>T variant by 9,1%, 7,4%, 46,3%, respectively, pointing out that
further analyses are needed to confirm/exclude FD in these patients. Because the effects of CIHs are not
yet fully understood, our work highlights the importance of analyzing intronic regions of the GLA gene
as genetic modifiers and the need to include expression analysis in the diagnostic algorithm.",
publisher = "Sarajevo : Institute for Genetic Engineering and Biotechnology, University of Sarajevo",
journal = "Genetics & Applications",
title = "High-risk population screening for fabry disease in patients with chronic renal failure of unknown etiology",
number = "2 (Special edition), 107",
volume = "7",
url = "https://hdl.handle.net/21.15107/rcub_imagine_1901"
}

Parezanović, M., Anđelković, M., Stevanović, N., Spasovski, V., Ugrin, M., Komazec, J., Klaassen, K., Stanković, S., Pavlović, S., Stojiljković, M.,& Skakić, A.. (2023). High-risk population screening for fabry disease in patients with chronic renal failure of unknown etiology. in Genetics & Applications
Sarajevo : Institute for Genetic Engineering and Biotechnology, University of Sarajevo., 7(2 (Special edition)).
https://hdl.handle.net/21.15107/rcub_imagine_1901

Parezanović M, Anđelković M, Stevanović N, Spasovski V, Ugrin M, Komazec J, Klaassen K, Stanković S, Pavlović S, Stojiljković M, Skakić A. High-risk population screening for fabry disease in patients with chronic renal failure of unknown etiology. in Genetics & Applications. 2023;7(2 (Special edition)).
https://hdl.handle.net/21.15107/rcub_imagine_1901 .

Parezanović, Marina, Anđelković, Marina, Stevanović, Nina, Spasovski, Vesna, Ugrin, Milena, Komazec, Jovana, Klaassen, Kristel, Stanković, Sara, Pavlović, Sonja, Stojiljković, Maja, Skakić, Anita, "High-risk population screening for fabry disease in patients with chronic renal failure of unknown etiology" in Genetics & Applications, 7, no. 2 (Special edition) (2023),
https://hdl.handle.net/21.15107/rcub_imagine_1901 .

TY  - CONF
AU  - Klaassen, Kristel
AU  - Šinžar, Ksenija
AU  - Stanković, Sara
AU  - Đorđević Milošević, Maja
AU  - Kecman, Božica
AU  - Anđelković, Marina
AU  - Skakić, Anita
AU  - Spasovski, Vesna
AU  - Ugrin, Milena
AU  - Komazec, Jovana
AU  - Parezanović, Marina
AU  - Stevanović, Nina
AU  - Pavlović, Sonja
AU  - Stojiljković, Maja
PY  - 2023
UR  - https://imagine.imgge.bg.ac.rs/handle/123456789/2142
AB  - Introduction: Phenylketonuria (PKU) is the most frequent inborn disorder of amino acid metabolism
caused by variants in human phenylalanine hydroxylase gene (PAH).
Methods: In thisstudy (an update for the time period of 10 years, with patientsfrom our previousstudies included) a total of 109 PKU patients from Serbia were analyzed. They were classified into three phenotypic categories in accordance with pre-treatment plasma phenylalanine level: classic PKU, mild PKU
and mild hyperphenylalaninemia. For genetic analyses, we combined Sanger sequencing, MLPA and
next generation sequencing to identify disease-causing variantsin PAH gene, which were further classified using ACMG classification. Additionally, we used in silico and/or eukaryotic expression studiesto assess the effect of novel genetic variants identified in our patients.
Results: Disease-causing variants were identified in 217 of 218 alleles, reaching detection rate of 99.5%.
We detected a total of 32 different variants, of which 29 previously described and three novel ones:
p.Gln226Lys, p.Pro244His and p.Pro416Leu. In silico and/or eukaryotic expression studies confirmed pathogenic effect of all novel genetic variants. The most frequent variant was p.Leu48Ser (31.2%), followed
by p.Arg408Trp (13.8%), p.Ile306Val (9.2%). p.Glu390Gly (5%), p.Pro281Leu (4.6%), and p.Arg261Gln
(3.2%). All detected disease-causing variants were classified as pathogenic using ACMG classification.
Conclusion: Our study brings the updated spectrum of molecular genetic data, variant classification
and detailed phenotypic characteristicsfor PKU patientsfrom Serbia. Therefore, ourstudy contributesto
better understanding of molecular landscape of PKU in Europe and to general knowledge on genotype–
phenotype correlation in PKU.
PB  - Institute of Molecular Genetics and Genetic Engineering (IMGGE), University of Belgrade
C3  - CoMBoS2 – the Second Congress of Molecular Biologists of Serbia, Abstract Book – Trends in Molecular Biology, Special issue 06-08 October 2023, Belgrade, Serbia
T1  - Molecular basis of phenylketonuria in Serbia: an update
EP  - 93
SP  - 93
UR  - https://hdl.handle.net/21.15107/rcub_imagine_2142
ER  - 

@conference{
author = "Klaassen, Kristel and Šinžar, Ksenija and Stanković, Sara and Đorđević Milošević, Maja and Kecman, Božica and Anđelković, Marina and Skakić, Anita and Spasovski, Vesna and Ugrin, Milena and Komazec, Jovana and Parezanović, Marina and Stevanović, Nina and Pavlović, Sonja and Stojiljković, Maja",
year = "2023",
abstract = "Introduction: Phenylketonuria (PKU) is the most frequent inborn disorder of amino acid metabolism
caused by variants in human phenylalanine hydroxylase gene (PAH).
Methods: In thisstudy (an update for the time period of 10 years, with patientsfrom our previousstudies included) a total of 109 PKU patients from Serbia were analyzed. They were classified into three phenotypic categories in accordance with pre-treatment plasma phenylalanine level: classic PKU, mild PKU
and mild hyperphenylalaninemia. For genetic analyses, we combined Sanger sequencing, MLPA and
next generation sequencing to identify disease-causing variantsin PAH gene, which were further classified using ACMG classification. Additionally, we used in silico and/or eukaryotic expression studiesto assess the effect of novel genetic variants identified in our patients.
Results: Disease-causing variants were identified in 217 of 218 alleles, reaching detection rate of 99.5%.
We detected a total of 32 different variants, of which 29 previously described and three novel ones:
p.Gln226Lys, p.Pro244His and p.Pro416Leu. In silico and/or eukaryotic expression studies confirmed pathogenic effect of all novel genetic variants. The most frequent variant was p.Leu48Ser (31.2%), followed
by p.Arg408Trp (13.8%), p.Ile306Val (9.2%). p.Glu390Gly (5%), p.Pro281Leu (4.6%), and p.Arg261Gln
(3.2%). All detected disease-causing variants were classified as pathogenic using ACMG classification.
Conclusion: Our study brings the updated spectrum of molecular genetic data, variant classification
and detailed phenotypic characteristicsfor PKU patientsfrom Serbia. Therefore, ourstudy contributesto
better understanding of molecular landscape of PKU in Europe and to general knowledge on genotype–
phenotype correlation in PKU.",
publisher = "Institute of Molecular Genetics and Genetic Engineering (IMGGE), University of Belgrade",
journal = "CoMBoS2 – the Second Congress of Molecular Biologists of Serbia, Abstract Book – Trends in Molecular Biology, Special issue 06-08 October 2023, Belgrade, Serbia",
title = "Molecular basis of phenylketonuria in Serbia: an update",
pages = "93-93",
url = "https://hdl.handle.net/21.15107/rcub_imagine_2142"
}

Klaassen, K., Šinžar, K., Stanković, S., Đorđević Milošević, M., Kecman, B., Anđelković, M., Skakić, A., Spasovski, V., Ugrin, M., Komazec, J., Parezanović, M., Stevanović, N., Pavlović, S.,& Stojiljković, M.. (2023). Molecular basis of phenylketonuria in Serbia: an update. in CoMBoS2 – the Second Congress of Molecular Biologists of Serbia, Abstract Book – Trends in Molecular Biology, Special issue 06-08 October 2023, Belgrade, Serbia
Institute of Molecular Genetics and Genetic Engineering (IMGGE), University of Belgrade., 93-93.
https://hdl.handle.net/21.15107/rcub_imagine_2142

Klaassen K, Šinžar K, Stanković S, Đorđević Milošević M, Kecman B, Anđelković M, Skakić A, Spasovski V, Ugrin M, Komazec J, Parezanović M, Stevanović N, Pavlović S, Stojiljković M. Molecular basis of phenylketonuria in Serbia: an update. in CoMBoS2 – the Second Congress of Molecular Biologists of Serbia, Abstract Book – Trends in Molecular Biology, Special issue 06-08 October 2023, Belgrade, Serbia. 2023;:93-93.
https://hdl.handle.net/21.15107/rcub_imagine_2142 .

Klaassen, Kristel, Šinžar, Ksenija, Stanković, Sara, Đorđević Milošević, Maja, Kecman, Božica, Anđelković, Marina, Skakić, Anita, Spasovski, Vesna, Ugrin, Milena, Komazec, Jovana, Parezanović, Marina, Stevanović, Nina, Pavlović, Sonja, Stojiljković, Maja, "Molecular basis of phenylketonuria in Serbia: an update" in CoMBoS2 – the Second Congress of Molecular Biologists of Serbia, Abstract Book – Trends in Molecular Biology, Special issue 06-08 October 2023, Belgrade, Serbia (2023):93-93,
https://hdl.handle.net/21.15107/rcub_imagine_2142 .

TY  - CONF
AU  - Anđelković, Marina
AU  - Skakić, Anita
AU  - Stevanović, Nina
AU  - Parezanović, Marina
AU  - Komazec, Jovana
AU  - Klaassen, Kristel
AU  - Spasovski, Vesna
AU  - Stojiljković, Maja
AU  - Pavlović, Sonja
PY  - 2023
UR  - https://imagine.imgge.bg.ac.rs/handle/123456789/1900
AB  - Rare lung diseases (RLDs) are a group of diseases that individually affect one in 2,000 people, with an
estimate that about 80% of RLDs have a genetic origin. Despite the variations among RLDs in clinical
characteristics and manifestations, most of these diseases similarly damage the lungs, making diagnosis
difficult. The utility of NGS technology in RLDs for diagnostic purposes allows a better understanding
of the genetic background, however, the identification and classification of disease-causing variants are
challenging. Further, numerous VUS (variants of uncertain significance) that cannot be precisely
defined and classified are produced. The main goal of this study was to create a unique guideline that
will enable the standardization of the assessment of novel genetic variants in RLDs causative genes.
The designed pipeline consists of three main steps: (1) sequencing, detection, and identification of
genes/variants, (2) classification of variants, and (3) characterization of variants using in silico
structural and functional analysis. The pipeline validation was performed through the analysis of
variants detected in a disease-causing and candidate genes of one of the RLDSs, and detected VUS
variants have gained diagnostic significance. The application of this pipeline resulted in the
identification and classification of novel variants, through analysis at the transcriptional, translational,
and posttranslational levels, and led to accurate diagnosis.
PB  - Sarajevo : Institute for Genetic Engineering and Biotechnology, University of Sarajevo
C3  - Genetics & Applications
T1  - Improving the diagnostics of rare lung disorders using a uniquely designed pipeline for analysis of ngs data
IS  - 2 (Special edition)
SP  - 104
VL  - 7
UR  - https://hdl.handle.net/21.15107/rcub_imagine_1900
ER  - 

@conference{
author = "Anđelković, Marina and Skakić, Anita and Stevanović, Nina and Parezanović, Marina and Komazec, Jovana and Klaassen, Kristel and Spasovski, Vesna and Stojiljković, Maja and Pavlović, Sonja",
year = "2023",
abstract = "Rare lung diseases (RLDs) are a group of diseases that individually affect one in 2,000 people, with an
estimate that about 80% of RLDs have a genetic origin. Despite the variations among RLDs in clinical
characteristics and manifestations, most of these diseases similarly damage the lungs, making diagnosis
difficult. The utility of NGS technology in RLDs for diagnostic purposes allows a better understanding
of the genetic background, however, the identification and classification of disease-causing variants are
challenging. Further, numerous VUS (variants of uncertain significance) that cannot be precisely
defined and classified are produced. The main goal of this study was to create a unique guideline that
will enable the standardization of the assessment of novel genetic variants in RLDs causative genes.
The designed pipeline consists of three main steps: (1) sequencing, detection, and identification of
genes/variants, (2) classification of variants, and (3) characterization of variants using in silico
structural and functional analysis. The pipeline validation was performed through the analysis of
variants detected in a disease-causing and candidate genes of one of the RLDSs, and detected VUS
variants have gained diagnostic significance. The application of this pipeline resulted in the
identification and classification of novel variants, through analysis at the transcriptional, translational,
and posttranslational levels, and led to accurate diagnosis.",
publisher = "Sarajevo : Institute for Genetic Engineering and Biotechnology, University of Sarajevo",
journal = "Genetics & Applications",
title = "Improving the diagnostics of rare lung disorders using a uniquely designed pipeline for analysis of ngs data",
number = "2 (Special edition)",
pages = "104",
volume = "7",
url = "https://hdl.handle.net/21.15107/rcub_imagine_1900"
}

Anđelković, M., Skakić, A., Stevanović, N., Parezanović, M., Komazec, J., Klaassen, K., Spasovski, V., Stojiljković, M.,& Pavlović, S.. (2023). Improving the diagnostics of rare lung disorders using a uniquely designed pipeline for analysis of ngs data. in Genetics & Applications
Sarajevo : Institute for Genetic Engineering and Biotechnology, University of Sarajevo., 7(2 (Special edition)), 104.
https://hdl.handle.net/21.15107/rcub_imagine_1900

Anđelković M, Skakić A, Stevanović N, Parezanović M, Komazec J, Klaassen K, Spasovski V, Stojiljković M, Pavlović S. Improving the diagnostics of rare lung disorders using a uniquely designed pipeline for analysis of ngs data. in Genetics & Applications. 2023;7(2 (Special edition)):104.
https://hdl.handle.net/21.15107/rcub_imagine_1900 .

Anđelković, Marina, Skakić, Anita, Stevanović, Nina, Parezanović, Marina, Komazec, Jovana, Klaassen, Kristel, Spasovski, Vesna, Stojiljković, Maja, Pavlović, Sonja, "Improving the diagnostics of rare lung disorders using a uniquely designed pipeline for analysis of ngs data" in Genetics & Applications, 7, no. 2 (Special edition) (2023):104,
https://hdl.handle.net/21.15107/rcub_imagine_1900 .

TY  - CONF
AU  - Stevanović, Nina
AU  - Skakić, Anita
AU  - Parezanović, Marina
AU  - Spasovski, Vesna
AU  - Ugrin, Milena
AU  - Komazec, Jovana
AU  - Klaassen, Kristel
AU  - Stanković, Sara
AU  - Pavlović, Sonja
AU  - Stojiljković, Maja
AU  - Anđelković, Marina
PY  - 2023
UR  - https://imagine.imgge.bg.ac.rs/handle/123456789/2140
AB  - Introduction: Primary ciliary dyskinesia is a rare and heterogeneous disorder primarily affecting the respiratory organs, with impaired mucociliary clearance being a common characteristic. Recently, the importance of the miR34/449 family in ciliogenesisin animal models has been described. Thisstudy aimed
to establish a modelsystem to study respiratory diseases and assessfor the first time the role of the miR34 family on the mucociliary process in humans.
Methods: We cultured the primary Normal Human Bronchial Epithelial (NHBE) cells in the air-liquid interface system, enabling the differentiation of multiciliated cells(MCCs) and goblet cells(GCs). During the
differentiation process, transient overexpression of miR-34a/b/c members was conducted. The model
system and treatments were validated through confocal microscopy (β-tubulin, MUC5B, MUC5AC antibodies) and qRT-PCR of miRNAs,specifically ciliogenesis markers(NOTCH1, MCIDAS, GEMC1, CCNO, RFX3),
and differentiated cell markers (FOXJ1 and TFF3).
Results: Expression levels of ciliogenesis and differentiated cells markers and detection of cilia and
mucins at confocal microscopy confirmed the successful establishment of cellular modelsystem. During
the initial differentiation stage, an overexpression of miR34a/b/c changed the expression profile of ciliogenesis and differentiated cell markers.
Conclusion: The established model system provides a valuable platform for exploring innovative treatment approaches for lung diseases. These findings suggest that overexpression of miR34a/b/c has impact on mucociliary process by reducing the duration required for the process of ciliogenesis.
Furthermore, the expression levels of differentiated cell markerssuggest increased number of MCCs and
decreased number of GCs, indicating the role of miR34a/b/c in enhancing mucociliary clearance.
PB  - Institute of Molecular Genetics and Genetic Engineering (IMGGE), University of Belgrade
C3  - CoMBoS2 – the Second Congress of Molecular Biologists of Serbia, Abstract Book – Trends in Molecular Biology, Special issue 06-08 October 2023, Belgrade, Serbia
T1  - The role of MIR-34 family members on the mucociliary process in the cellular respiratory model system
EP  - 90
SP  - 90
UR  - https://hdl.handle.net/21.15107/rcub_imagine_2140
ER  - 

@conference{
author = "Stevanović, Nina and Skakić, Anita and Parezanović, Marina and Spasovski, Vesna and Ugrin, Milena and Komazec, Jovana and Klaassen, Kristel and Stanković, Sara and Pavlović, Sonja and Stojiljković, Maja and Anđelković, Marina",
year = "2023",
abstract = "Introduction: Primary ciliary dyskinesia is a rare and heterogeneous disorder primarily affecting the respiratory organs, with impaired mucociliary clearance being a common characteristic. Recently, the importance of the miR34/449 family in ciliogenesisin animal models has been described. Thisstudy aimed
to establish a modelsystem to study respiratory diseases and assessfor the first time the role of the miR34 family on the mucociliary process in humans.
Methods: We cultured the primary Normal Human Bronchial Epithelial (NHBE) cells in the air-liquid interface system, enabling the differentiation of multiciliated cells(MCCs) and goblet cells(GCs). During the
differentiation process, transient overexpression of miR-34a/b/c members was conducted. The model
system and treatments were validated through confocal microscopy (β-tubulin, MUC5B, MUC5AC antibodies) and qRT-PCR of miRNAs,specifically ciliogenesis markers(NOTCH1, MCIDAS, GEMC1, CCNO, RFX3),
and differentiated cell markers (FOXJ1 and TFF3).
Results: Expression levels of ciliogenesis and differentiated cells markers and detection of cilia and
mucins at confocal microscopy confirmed the successful establishment of cellular modelsystem. During
the initial differentiation stage, an overexpression of miR34a/b/c changed the expression profile of ciliogenesis and differentiated cell markers.
Conclusion: The established model system provides a valuable platform for exploring innovative treatment approaches for lung diseases. These findings suggest that overexpression of miR34a/b/c has impact on mucociliary process by reducing the duration required for the process of ciliogenesis.
Furthermore, the expression levels of differentiated cell markerssuggest increased number of MCCs and
decreased number of GCs, indicating the role of miR34a/b/c in enhancing mucociliary clearance.",
publisher = "Institute of Molecular Genetics and Genetic Engineering (IMGGE), University of Belgrade",
journal = "CoMBoS2 – the Second Congress of Molecular Biologists of Serbia, Abstract Book – Trends in Molecular Biology, Special issue 06-08 October 2023, Belgrade, Serbia",
title = "The role of MIR-34 family members on the mucociliary process in the cellular respiratory model system",
pages = "90-90",
url = "https://hdl.handle.net/21.15107/rcub_imagine_2140"
}

Stevanović, N., Skakić, A., Parezanović, M., Spasovski, V., Ugrin, M., Komazec, J., Klaassen, K., Stanković, S., Pavlović, S., Stojiljković, M.,& Anđelković, M.. (2023). The role of MIR-34 family members on the mucociliary process in the cellular respiratory model system. in CoMBoS2 – the Second Congress of Molecular Biologists of Serbia, Abstract Book – Trends in Molecular Biology, Special issue 06-08 October 2023, Belgrade, Serbia
Institute of Molecular Genetics and Genetic Engineering (IMGGE), University of Belgrade., 90-90.
https://hdl.handle.net/21.15107/rcub_imagine_2140

Stevanović N, Skakić A, Parezanović M, Spasovski V, Ugrin M, Komazec J, Klaassen K, Stanković S, Pavlović S, Stojiljković M, Anđelković M. The role of MIR-34 family members on the mucociliary process in the cellular respiratory model system. in CoMBoS2 – the Second Congress of Molecular Biologists of Serbia, Abstract Book – Trends in Molecular Biology, Special issue 06-08 October 2023, Belgrade, Serbia. 2023;:90-90.
https://hdl.handle.net/21.15107/rcub_imagine_2140 .

Stevanović, Nina, Skakić, Anita, Parezanović, Marina, Spasovski, Vesna, Ugrin, Milena, Komazec, Jovana, Klaassen, Kristel, Stanković, Sara, Pavlović, Sonja, Stojiljković, Maja, Anđelković, Marina, "The role of MIR-34 family members on the mucociliary process in the cellular respiratory model system" in CoMBoS2 – the Second Congress of Molecular Biologists of Serbia, Abstract Book – Trends in Molecular Biology, Special issue 06-08 October 2023, Belgrade, Serbia (2023):90-90,
https://hdl.handle.net/21.15107/rcub_imagine_2140 .

TY  - CONF
AU  - Jocić, Nikola
AU  - Parezanović, Marina
AU  - Anđelković, Marina
AU  - Stevanović, Nina
AU  - Ugrin, Milena
AU  - Spasovski, Vesna
AU  - Klaassen, Kristel
AU  - Stanković, Sara
AU  - Komazec, Jovana
AU  - Pavlović, Sonja
AU  - Stojiljković, Maja
AU  - Skakić, Anita
PY  - 2023
UR  - https://imagine.imgge.bg.ac.rs/handle/123456789/2141
AB  - Introduction: Glycogen storage disease type Ib (GSD-Ib) is characterized by a deficiency of glucose-6-
phosphate translocase (G6PT) encoded by the SLC37A4 gene, affecting glucose homeostasis and disrupting autophagy. Recent findings suggest that G6PT may also play a role in autophagy and
glycogen-selective autophagy (glycophagy) activation independent of its transport function. To investigate this hypothesis, two groups of GSD-Ib patients carrying variants with different effects on G6PT
transport activity and stability (p.Asn27Lys and p.Leu348Valfs*53), were compared to the control group
of subjects.
Methods: The relative expression levels of SLC37A4 gene, autophagy (mTOR, ULK1, PRKAG1), and glycophagy markers(GABARAPL1, GAA, STBD1) were assessed in mononuclear cells of GSD Ib patients(four
carrying p.Asn27Lys and four carrying p.Leu348Valfs*53 variant) compared to control group using RTqPCR. Statistical analysis was performed using one-way ANOVA followed by a post-hoc t-test.
Results: The p.Asn27Lys group exhibited 1.5-2.5 times higher expression of SLC37A4 and autophagy
markers, while the p.Leu348Valfs*53 group showed downregulation by approximately 50% compared to
the control group. Glycophagy markers were increased twofold in both patient groups, except for GAA,
which had similar expression levels as the control group.
Conclusion: Individuals carrying the p.Asn27Lys variant display the presence of SLC37A4 transcript in
their cells, which correlates with autophagy activation. Conversely, in patients with the p.Leu348Valfs*53
variant SLC37A4 is downregulated, indicating compromised autophagy activation. These findings support the role of G6PT in autophagy activation, independent of itstransport activity. Furthermore, the elevated expression of glycophagy markers observed in both patient groups can be attributed to the
accumulated glycogen.
PB  - Institute of Molecular Genetics and Genetic Engineering (IMGGE), University of Belgrade
C3  - CoMBoS2 – the Second Congress of Molecular Biologists of Serbia, Abstract Book – Trends in Molecular Biology, Special issue 06-08 October 2023, Belgrade, Serbia
T1  - Investigation of the role of the glucose-6-phosphate translocase in the activation of autophagy and glycogen-selective autophagy in glycogen storage disease type IB patients
EP  - 92
SP  - 92
UR  - https://hdl.handle.net/21.15107/rcub_imagine_2141
ER  - 

@conference{
author = "Jocić, Nikola and Parezanović, Marina and Anđelković, Marina and Stevanović, Nina and Ugrin, Milena and Spasovski, Vesna and Klaassen, Kristel and Stanković, Sara and Komazec, Jovana and Pavlović, Sonja and Stojiljković, Maja and Skakić, Anita",
year = "2023",
abstract = "Introduction: Glycogen storage disease type Ib (GSD-Ib) is characterized by a deficiency of glucose-6-
phosphate translocase (G6PT) encoded by the SLC37A4 gene, affecting glucose homeostasis and disrupting autophagy. Recent findings suggest that G6PT may also play a role in autophagy and
glycogen-selective autophagy (glycophagy) activation independent of its transport function. To investigate this hypothesis, two groups of GSD-Ib patients carrying variants with different effects on G6PT
transport activity and stability (p.Asn27Lys and p.Leu348Valfs*53), were compared to the control group
of subjects.
Methods: The relative expression levels of SLC37A4 gene, autophagy (mTOR, ULK1, PRKAG1), and glycophagy markers(GABARAPL1, GAA, STBD1) were assessed in mononuclear cells of GSD Ib patients(four
carrying p.Asn27Lys and four carrying p.Leu348Valfs*53 variant) compared to control group using RTqPCR. Statistical analysis was performed using one-way ANOVA followed by a post-hoc t-test.
Results: The p.Asn27Lys group exhibited 1.5-2.5 times higher expression of SLC37A4 and autophagy
markers, while the p.Leu348Valfs*53 group showed downregulation by approximately 50% compared to
the control group. Glycophagy markers were increased twofold in both patient groups, except for GAA,
which had similar expression levels as the control group.
Conclusion: Individuals carrying the p.Asn27Lys variant display the presence of SLC37A4 transcript in
their cells, which correlates with autophagy activation. Conversely, in patients with the p.Leu348Valfs*53
variant SLC37A4 is downregulated, indicating compromised autophagy activation. These findings support the role of G6PT in autophagy activation, independent of itstransport activity. Furthermore, the elevated expression of glycophagy markers observed in both patient groups can be attributed to the
accumulated glycogen.",
publisher = "Institute of Molecular Genetics and Genetic Engineering (IMGGE), University of Belgrade",
journal = "CoMBoS2 – the Second Congress of Molecular Biologists of Serbia, Abstract Book – Trends in Molecular Biology, Special issue 06-08 October 2023, Belgrade, Serbia",
title = "Investigation of the role of the glucose-6-phosphate translocase in the activation of autophagy and glycogen-selective autophagy in glycogen storage disease type IB patients",
pages = "92-92",
url = "https://hdl.handle.net/21.15107/rcub_imagine_2141"
}

Jocić, N., Parezanović, M., Anđelković, M., Stevanović, N., Ugrin, M., Spasovski, V., Klaassen, K., Stanković, S., Komazec, J., Pavlović, S., Stojiljković, M.,& Skakić, A.. (2023). Investigation of the role of the glucose-6-phosphate translocase in the activation of autophagy and glycogen-selective autophagy in glycogen storage disease type IB patients. in CoMBoS2 – the Second Congress of Molecular Biologists of Serbia, Abstract Book – Trends in Molecular Biology, Special issue 06-08 October 2023, Belgrade, Serbia
Institute of Molecular Genetics and Genetic Engineering (IMGGE), University of Belgrade., 92-92.
https://hdl.handle.net/21.15107/rcub_imagine_2141

Jocić N, Parezanović M, Anđelković M, Stevanović N, Ugrin M, Spasovski V, Klaassen K, Stanković S, Komazec J, Pavlović S, Stojiljković M, Skakić A. Investigation of the role of the glucose-6-phosphate translocase in the activation of autophagy and glycogen-selective autophagy in glycogen storage disease type IB patients. in CoMBoS2 – the Second Congress of Molecular Biologists of Serbia, Abstract Book – Trends in Molecular Biology, Special issue 06-08 October 2023, Belgrade, Serbia. 2023;:92-92.
https://hdl.handle.net/21.15107/rcub_imagine_2141 .

Jocić, Nikola, Parezanović, Marina, Anđelković, Marina, Stevanović, Nina, Ugrin, Milena, Spasovski, Vesna, Klaassen, Kristel, Stanković, Sara, Komazec, Jovana, Pavlović, Sonja, Stojiljković, Maja, Skakić, Anita, "Investigation of the role of the glucose-6-phosphate translocase in the activation of autophagy and glycogen-selective autophagy in glycogen storage disease type IB patients" in CoMBoS2 – the Second Congress of Molecular Biologists of Serbia, Abstract Book – Trends in Molecular Biology, Special issue 06-08 October 2023, Belgrade, Serbia (2023):92-92,
https://hdl.handle.net/21.15107/rcub_imagine_2141 .

TY  - CONF
AU  - Anđelković, Marina
AU  - Skakić, Anita
AU  - Stevanović, Nina
AU  - Parezanović, Marina
AU  - Stojiljković, Maja
AU  - Spasovski, Vesna
AU  - Pavlović, Sonja
PY  - 2022
UR  - https://imagine.imgge.bg.ac.rs/handle/123456789/1744
AB  - Retke plućne bolesti (RPB) su grupa oboljenja koje pojedinačno pogađaju jednog od
2.000 ljudi, sa procenom da oko 80% RPB ima genetičku osnovu. Uprkos
varijacijama među RPB u kliničkim karakteristikama i manifestacijama, većina
ovih bolesti na sličan način oštećuje pluća, što otežava uspostavljanje
dijagnoze. Upotreba NGS tehnologije (engl. Next Generation Sequencing, NGS) u
dijagnostičke svrhe omogućava bolje razumevanje genetičke osnove bolesti,
međutim, identifikacija i klasifikacija varijanti koje izazivaju bolesti je
kompleksna zbog detekcije brojnih VUS varijanti (engl. Variants of uncertain
significance, VUS) koje se ne mogu precizno klasifikovati. Glavni cilj ove studije
bio je da se dizajnira jedinstveni vodič koji će omogućiti standardizaciju
analize novih genetičkih varijanti u genima uzročnicima RPB. Dizajnirane
smernice se sastoje od tri glavna koraka: (1) sekvenciranje, detekcija i
identifikacija gena/varijanti, (2) klasifikacija varijanti i (3) karakterizacija
varijanti korišćenjem in silico strukturne i funkcionalne analize (qRT-PCR i
Western blot analiza). Validacija smernica je izvršena analizom varijanti
otkrivenih u genu uzročniku i genu kandidatu za RPB, a detektovane VUS
varijante su dobile dijagnostički značaj. Primena ovih smernica je rezultirala
identifikacijom i klasifikacijom novootkrivenih genetičkih varijanti, kroz
analizu na transkripcionom, translacionom i posttranslacionom nivou, i
dovela do uspostavljanja precizne dijagnoze bolesti.
AB  - Ретке плућне болести (РПБ) су група обољења које појединачно погађају једног од
2.000 људи, са проценом да око 80% РПБ има генетичку основу. Упркос
варијацијама међу РПБ у клиничким карактеристикама и манифестацијама, већина
ових болести на сличан начин оштећује плућа, што отежава успостављање
дијагнозе. Употреба НГС технологије (енгл. Next Generation Sequencing, NGS) у
дијагностичке сврхе омогућава боље разумевање генетичке основе болести,
међутим, идентификација и класификација варијанти које изазивају болести је
комплексна због детекције бројних ВУС варијанти (енгл. Variants of uncertain
significance, VUS) које се не могу прецизно класификовати. Главни циљ ове студије
био је да се дизајнира јединствени водич који ће омогућити стандардизацију
анализе нових генетичких варијанти у генима узрочницима РПБ. Дизајниране
смернице се састоје од три главна корака: (1) секвенцирање, детекција и
идентификација гена/варијанти, (2) класификација варијанти и (3) карактеризација
варијанти коришћењем in silico структурне и функционалне анализе (qRT-PCR и
Western blot анализа). Валидација смерница је извршена анализом варијанти
откривених у гену узрочнику и гену кандидату за РПБ, а детектоване ВУС
варијанте су добиле дијагностички значај. Примена ових смерница је резултирала
идентификацијом и класификацијом новооткривених генетичких варијанти, кроз
анализу на транскрипционом, транслационом и посттранслационом нивоу, и
довела до успостављања прецизне дијагнозе болести.
PB  - Beograd : Srpsko biološko društvo
C3  - Treći kongres biologa Srbije
T1  - Dizajniranje jedinstvenih smernica za standardizaciju analize NGS podataka kod pacijenata sa retkim plućnim bolestima
T1  - Дизајнирање јединствених смерница за стандардизацију анализе НГС података код пацијената са ретким плућним болестима
SP  - 291
UR  - https://hdl.handle.net/21.15107/rcub_imagine_1744
ER  - 

@conference{
author = "Anđelković, Marina and Skakić, Anita and Stevanović, Nina and Parezanović, Marina and Stojiljković, Maja and Spasovski, Vesna and Pavlović, Sonja",
year = "2022",
abstract = "Retke plućne bolesti (RPB) su grupa oboljenja koje pojedinačno pogađaju jednog od
2.000 ljudi, sa procenom da oko 80% RPB ima genetičku osnovu. Uprkos
varijacijama među RPB u kliničkim karakteristikama i manifestacijama, većina
ovih bolesti na sličan način oštećuje pluća, što otežava uspostavljanje
dijagnoze. Upotreba NGS tehnologije (engl. Next Generation Sequencing, NGS) u
dijagnostičke svrhe omogućava bolje razumevanje genetičke osnove bolesti,
međutim, identifikacija i klasifikacija varijanti koje izazivaju bolesti je
kompleksna zbog detekcije brojnih VUS varijanti (engl. Variants of uncertain
significance, VUS) koje se ne mogu precizno klasifikovati. Glavni cilj ove studije
bio je da se dizajnira jedinstveni vodič koji će omogućiti standardizaciju
analize novih genetičkih varijanti u genima uzročnicima RPB. Dizajnirane
smernice se sastoje od tri glavna koraka: (1) sekvenciranje, detekcija i
identifikacija gena/varijanti, (2) klasifikacija varijanti i (3) karakterizacija
varijanti korišćenjem in silico strukturne i funkcionalne analize (qRT-PCR i
Western blot analiza). Validacija smernica je izvršena analizom varijanti
otkrivenih u genu uzročniku i genu kandidatu za RPB, a detektovane VUS
varijante su dobile dijagnostički značaj. Primena ovih smernica je rezultirala
identifikacijom i klasifikacijom novootkrivenih genetičkih varijanti, kroz
analizu na transkripcionom, translacionom i posttranslacionom nivou, i
dovela do uspostavljanja precizne dijagnoze bolesti., Ретке плућне болести (РПБ) су група обољења које појединачно погађају једног од
2.000 људи, са проценом да око 80% РПБ има генетичку основу. Упркос
варијацијама међу РПБ у клиничким карактеристикама и манифестацијама, већина
ових болести на сличан начин оштећује плућа, што отежава успостављање
дијагнозе. Употреба НГС технологије (енгл. Next Generation Sequencing, NGS) у
дијагностичке сврхе омогућава боље разумевање генетичке основе болести,
међутим, идентификација и класификација варијанти које изазивају болести је
комплексна због детекције бројних ВУС варијанти (енгл. Variants of uncertain
significance, VUS) које се не могу прецизно класификовати. Главни циљ ове студије
био је да се дизајнира јединствени водич који ће омогућити стандардизацију
анализе нових генетичких варијанти у генима узрочницима РПБ. Дизајниране
смернице се састоје од три главна корака: (1) секвенцирање, детекција и
идентификација гена/варијанти, (2) класификација варијанти и (3) карактеризација
варијанти коришћењем in silico структурне и функционалне анализе (qRT-PCR и
Western blot анализа). Валидација смерница је извршена анализом варијанти
откривених у гену узрочнику и гену кандидату за РПБ, а детектоване ВУС
варијанте су добиле дијагностички значај. Примена ових смерница је резултирала
идентификацијом и класификацијом новооткривених генетичких варијанти, кроз
анализу на транскрипционом, транслационом и посттранслационом нивоу, и
довела до успостављања прецизне дијагнозе болести.",
publisher = "Beograd : Srpsko biološko društvo",
journal = "Treći kongres biologa Srbije",
title = "Dizajniranje jedinstvenih smernica za standardizaciju analize NGS podataka kod pacijenata sa retkim plućnim bolestima, Дизајнирање јединствених смерница за стандардизацију анализе НГС података код пацијената са ретким плућним болестима",
pages = "291",
url = "https://hdl.handle.net/21.15107/rcub_imagine_1744"
}

Anđelković, M., Skakić, A., Stevanović, N., Parezanović, M., Stojiljković, M., Spasovski, V.,& Pavlović, S.. (2022). Dizajniranje jedinstvenih smernica za standardizaciju analize NGS podataka kod pacijenata sa retkim plućnim bolestima. in Treći kongres biologa Srbije
Beograd : Srpsko biološko društvo., 291.
https://hdl.handle.net/21.15107/rcub_imagine_1744

Anđelković M, Skakić A, Stevanović N, Parezanović M, Stojiljković M, Spasovski V, Pavlović S. Dizajniranje jedinstvenih smernica za standardizaciju analize NGS podataka kod pacijenata sa retkim plućnim bolestima. in Treći kongres biologa Srbije. 2022;:291.
https://hdl.handle.net/21.15107/rcub_imagine_1744 .

Anđelković, Marina, Skakić, Anita, Stevanović, Nina, Parezanović, Marina, Stojiljković, Maja, Spasovski, Vesna, Pavlović, Sonja, "Dizajniranje jedinstvenih smernica za standardizaciju analize NGS podataka kod pacijenata sa retkim plućnim bolestima" in Treći kongres biologa Srbije (2022):291,
https://hdl.handle.net/21.15107/rcub_imagine_1744 .

TY  - CONF
AU  - Stevanović, Nina
AU  - Skakić, Anita
AU  - Spasovski, Vesna
AU  - Stojiljković, Maja
AU  - Parezanović, Marina
AU  - Ugrin, Milena
AU  - Pavlović, Sonja
AU  - Anđelković, Marina
PY  - 2022
UR  - https://imagine.imgge.bg.ac.rs/handle/123456789/1738
AB  - Primarna cilijarna diskinezija (PCD) je retka motorna ciliopatija, koja
predominantno utiče na pluća i reproduktivne organe. PCD ima heterogenu
genetičku osnovu, te je neophodno analizirati više od 40 gena uzročnika kako bi
se postavila precizna dijagnoza, što je od suštinskog značaja za optimalno
lečenje i adekvatno genetičko savetovanje. Analizirano je 5 pacijenata suspektnih
na PCD upotrebom metode sekvenciranja nove generacije (NGS). Patogenost
genetičkih varijanti ispitana je in silico, qRT-PCR i Western blot metodama. Kod
jednog pacijenta suspektnog na PCD detektovane su dve novootkrivene varijante
p.N450Lfs*6 i p.D562N u genu DNAI1. Rezultati in silico predikcije pokazali su da
varijanta p.N450Lfs*6 utiče na strukturu 3D modela proteina, da ukida mesta za
vezivanje liganada i posttranslacione modifikacije, čime dolazi do narušavanja
protein-protein interakcija (PPI). Varijanta p.D562N nema uticaja na 3D
strukturu proteina, ali utiče na mesto vezivanja liganda i nalazi se u WD-40
domenu čime najverovatnije narušava PPI. Rezultati metode qRT-PCR pokazali
su snižen nivo ekspresije iRNK DNAI1 za oko 50% kod pacijenta u odnosu na
kontrolnu grupu, dok je Western blot analizom pokazano prisustvo dva proteinska
produkta (699 ak i 455 ak). Analizom dobijenih rezultata, zaključeno je da
promene p.N450Lfs*6 i p.D562N utiču na dužinu i količinu proteina DNAI1
čime dovode do gubitka proteinske funkcije i odgovorne su za nastanak primarne
cilijarne diskinezije kod analiziranog pacijenta.
AB  - Примарна цилијарна дискинезија (ПЦД) је ретка моторна цилиопатија, која
предоминантно утиче на плућа и репродуктивне органе. ПЦД има хетерогену
генетичку основу, те је неопходно анализирати више од 40 гена узрочника како би
се поставила прецизна дијагноза, што је од суштинског значаја за оптимално
лечење и адекватно генетичко саветовање. Анализирано је 5 пацијената суспектних
на ПЦД употребом методе секвенцирања нове генерације (НГС). Патогеност
генетичких варијанти испитана је in silico, qRT-PCR и Western blot методама. Код
једног пацијента суспектног на ПЦД детектоване су две новооткривене варијанте
p.N450Lfs*6 и p.D562N у гену DNAI1. Резултати in silico предикције показали су да
варијанта p.N450Lfs*6 утиче на структуру 3Д модела протеина, да укида места за
везивање лиганада и посттранслационе модификације, чиме долази до нарушавања
протеин-протеин интеракција (ППИ). Варијанта p.D562N нема утицаја на 3Д
структуру протеина, али утиче на место везивања лиганда и налази се у WD-40
домену чиме највероватније нарушава ППИ. Резултати методе qRT-PCR показали
су снижен ниво експресије iRNK DNAI1 за око 50% код пацијента у односу на
контролну групу, док је Western blot анализом показано присуство два протеинска
продукта (699 ак и 455 ак). Анализом добијених резултата, закључено је да
промене p.N450Lfs*6 и p.D562N утичу на дужину и количину протеина DNAI1
чиме доводе до губитка протеинске функције и одговорне су за настанак примарне
цилијарне дискинезије код анализираног пацијента.
PB  - Beograd : Srpsko biološko društvo
C3  - Treći kongres biologa Srbije
T1  - Funkcionalna karatkerizacija novootkrivenih varijanti u genu DNAI1 kod pacijenta sa primarnom cilijarnom diskinezijom
T1  - Функционална караткеризација новооткривених варијанти у гену DNAI1 код пацијента са примарном цилијарном дискинезијом
SP  - 324
UR  - https://hdl.handle.net/21.15107/rcub_imagine_1738
ER  - 

@conference{
author = "Stevanović, Nina and Skakić, Anita and Spasovski, Vesna and Stojiljković, Maja and Parezanović, Marina and Ugrin, Milena and Pavlović, Sonja and Anđelković, Marina",
year = "2022",
abstract = "Primarna cilijarna diskinezija (PCD) je retka motorna ciliopatija, koja
predominantno utiče na pluća i reproduktivne organe. PCD ima heterogenu
genetičku osnovu, te je neophodno analizirati više od 40 gena uzročnika kako bi
se postavila precizna dijagnoza, što je od suštinskog značaja za optimalno
lečenje i adekvatno genetičko savetovanje. Analizirano je 5 pacijenata suspektnih
na PCD upotrebom metode sekvenciranja nove generacije (NGS). Patogenost
genetičkih varijanti ispitana je in silico, qRT-PCR i Western blot metodama. Kod
jednog pacijenta suspektnog na PCD detektovane su dve novootkrivene varijante
p.N450Lfs*6 i p.D562N u genu DNAI1. Rezultati in silico predikcije pokazali su da
varijanta p.N450Lfs*6 utiče na strukturu 3D modela proteina, da ukida mesta za
vezivanje liganada i posttranslacione modifikacije, čime dolazi do narušavanja
protein-protein interakcija (PPI). Varijanta p.D562N nema uticaja na 3D
strukturu proteina, ali utiče na mesto vezivanja liganda i nalazi se u WD-40
domenu čime najverovatnije narušava PPI. Rezultati metode qRT-PCR pokazali
su snižen nivo ekspresije iRNK DNAI1 za oko 50% kod pacijenta u odnosu na
kontrolnu grupu, dok je Western blot analizom pokazano prisustvo dva proteinska
produkta (699 ak i 455 ak). Analizom dobijenih rezultata, zaključeno je da
promene p.N450Lfs*6 i p.D562N utiču na dužinu i količinu proteina DNAI1
čime dovode do gubitka proteinske funkcije i odgovorne su za nastanak primarne
cilijarne diskinezije kod analiziranog pacijenta., Примарна цилијарна дискинезија (ПЦД) је ретка моторна цилиопатија, која
предоминантно утиче на плућа и репродуктивне органе. ПЦД има хетерогену
генетичку основу, те је неопходно анализирати више од 40 гена узрочника како би
се поставила прецизна дијагноза, што је од суштинског значаја за оптимално
лечење и адекватно генетичко саветовање. Анализирано је 5 пацијената суспектних
на ПЦД употребом методе секвенцирања нове генерације (НГС). Патогеност
генетичких варијанти испитана је in silico, qRT-PCR и Western blot методама. Код
једног пацијента суспектног на ПЦД детектоване су две новооткривене варијанте
p.N450Lfs*6 и p.D562N у гену DNAI1. Резултати in silico предикције показали су да
варијанта p.N450Lfs*6 утиче на структуру 3Д модела протеина, да укида места за
везивање лиганада и посттранслационе модификације, чиме долази до нарушавања
протеин-протеин интеракција (ППИ). Варијанта p.D562N нема утицаја на 3Д
структуру протеина, али утиче на место везивања лиганда и налази се у WD-40
домену чиме највероватније нарушава ППИ. Резултати методе qRT-PCR показали
су снижен ниво експресије iRNK DNAI1 за око 50% код пацијента у односу на
контролну групу, док је Western blot анализом показано присуство два протеинска
продукта (699 ак и 455 ак). Анализом добијених резултата, закључено је да
промене p.N450Lfs*6 и p.D562N утичу на дужину и количину протеина DNAI1
чиме доводе до губитка протеинске функције и одговорне су за настанак примарне
цилијарне дискинезије код анализираног пацијента.",
publisher = "Beograd : Srpsko biološko društvo",
journal = "Treći kongres biologa Srbije",
title = "Funkcionalna karatkerizacija novootkrivenih varijanti u genu DNAI1 kod pacijenta sa primarnom cilijarnom diskinezijom, Функционална караткеризација новооткривених варијанти у гену DNAI1 код пацијента са примарном цилијарном дискинезијом",
pages = "324",
url = "https://hdl.handle.net/21.15107/rcub_imagine_1738"
}

Stevanović, N., Skakić, A., Spasovski, V., Stojiljković, M., Parezanović, M., Ugrin, M., Pavlović, S.,& Anđelković, M.. (2022). Funkcionalna karatkerizacija novootkrivenih varijanti u genu DNAI1 kod pacijenta sa primarnom cilijarnom diskinezijom. in Treći kongres biologa Srbije
Beograd : Srpsko biološko društvo., 324.
https://hdl.handle.net/21.15107/rcub_imagine_1738

Stevanović N, Skakić A, Spasovski V, Stojiljković M, Parezanović M, Ugrin M, Pavlović S, Anđelković M. Funkcionalna karatkerizacija novootkrivenih varijanti u genu DNAI1 kod pacijenta sa primarnom cilijarnom diskinezijom. in Treći kongres biologa Srbije. 2022;:324.
https://hdl.handle.net/21.15107/rcub_imagine_1738 .

Stevanović, Nina, Skakić, Anita, Spasovski, Vesna, Stojiljković, Maja, Parezanović, Marina, Ugrin, Milena, Pavlović, Sonja, Anđelković, Marina, "Funkcionalna karatkerizacija novootkrivenih varijanti u genu DNAI1 kod pacijenta sa primarnom cilijarnom diskinezijom" in Treći kongres biologa Srbije (2022):324,
https://hdl.handle.net/21.15107/rcub_imagine_1738 .

TY  - CONF
AU  - Stojiljković, Maja
AU  - Klaassen, Kristel
AU  - Skakić, Anita
AU  - Anđelković, Marina
AU  - Spasovski, Vesna
AU  - Ugrin, Milena
AU  - Komazec, Jovana
AU  - Parezanović, Marina
AU  - Stevanović, Nina
AU  - Pavlović, Sonja
PY  - 2022
UR  - https://imagine.imgge.bg.ac.rs/handle/123456789/1747
AB  - Tokom poslednjih decenija, istraživanja na polju retkih bolesti napreduju
ogromnom brzinom usled sve veće upotrebe sekvenciranja nove generacije (engl.
Next-generation sequencing, NGS). Sekvenciranje kompletnog ljuskog genoma (engl.
Whole genome sequencing, WGS) osoba koje boluju od retkih bolesti je postalo
lako dostupno. Pored pronalaženja novih varijanti i novih gena koji leže u
osnovi retkih bolesti, genomika je omogućila i otkriće gena modifikatora koji
mogu da objasne uočene nedoslednosti u korelaciji genotipa i fenotipa.
Fenilketonurija je urođena metabolička retka bolest koja je uzrokovana
varijantama u genu za fenilalanin hidroksilazu (PAH). U ovoj studiji, sproveli
smo sekvenciranje kompletnog genoma 4 osobe iz nepovezanih nesrodnih porodica
koje su imale patogene varijante u PAH genu, ali nisu razvile fenilketonuriju
uprkos tome što nisu bile lečene. Otkrili smo dve nove varijante, p.Pro1591Ala
u SHANK1 i p.Asp18Asn u SHANK2 genima, kao i prethodno opisane
SHANK2:p.Gly46Ser, SHANK2:p.Pro1388_Phe1389insLeuPro i SHANK3:p.Pro1716Thr
varijante. Računarske predikcije su pokazale da identifikovane varijante ne
ukidaju funkciju SHANK proteina. Međutim, promene u posttranslacionim
modifikacijama SHANK proteina mogu uticati na funkcionisanje
glutamatergičnih sinapsi, regulaciju citoskeleta i doprineti održavanju
optimalne sinaptičke gustine i broja dendritskih bodlji. Naši rezultati po
prvi put povezuju porodicu SHANK gena i osobine neuroloških promena kod
osoba sa fenilketonurijom.
AB  - Током последњих деценија, истраживања на пољу ретких болести напредују
огромном брзином услед све веће употребе секвенцирања нове генерације (енгл.
Next-generation sequencing, NGS). Секвенцирање комплетног љуског генома (енгл.
Whole genome sequencing, WGS) особа које болују од ретких болести је постало
лако доступно. Поред проналажења нових варијанти и нових гена који леже у
основи ретких болести, геномика је омогућила и откриће гена модификатора који
могу да објасне уочене недоследности у корелацији генотипа и фенотипа.
Фенилкетонурија је урођена метаболичка ретка болест која је узрокована
варијантама у гену за фенилаланин хидроксилазу (PAH). У овој студији, спровели
смо секвенцирање комплетног генома 4 особе из неповезаних несродних породица
које су имале патогене варијанте у PAH гену, али нису развиле фенилкетонурију
упркос томе што нису биле лечене. Открили смо две нове варијанте, p.Pro1591Ala
у SHANK1 и p.Asp18Asn у SHANK2 генима, као и претходно описане
SHANK2:p.Gly46Ser, SHANK2:p.Pro1388_Phe1389insLeuPro и SHANK3:p.Pro1716Thr
варијанте. Рачунарске предикције су показале да идентификоване варијанте не
укидају функцију SHANK протеина. Међутим, промене у посттранслационим
модификацијама SHANK протеина могу утицати на функционисање
глутаматергичних синапси, регулацију цитоскелета и допринети одржавању
оптималне синаптичке густине и броја дендритских бодљи. Наши резултати по
први пут повезују породицу SHANK гена и особине неуролошких промена код
особа са фенилкетонуријом.
PB  - Beograd : Srpsko biološko društvo
C3  - Treći kongres biologa Srbije
T1  - Retke bolesti u eri genomike
T1  - Ретке болести у ери геномике
SP  - 287
UR  - https://hdl.handle.net/21.15107/rcub_imagine_1747
ER  - 

@conference{
author = "Stojiljković, Maja and Klaassen, Kristel and Skakić, Anita and Anđelković, Marina and Spasovski, Vesna and Ugrin, Milena and Komazec, Jovana and Parezanović, Marina and Stevanović, Nina and Pavlović, Sonja",
year = "2022",
abstract = "Tokom poslednjih decenija, istraživanja na polju retkih bolesti napreduju
ogromnom brzinom usled sve veće upotrebe sekvenciranja nove generacije (engl.
Next-generation sequencing, NGS). Sekvenciranje kompletnog ljuskog genoma (engl.
Whole genome sequencing, WGS) osoba koje boluju od retkih bolesti je postalo
lako dostupno. Pored pronalaženja novih varijanti i novih gena koji leže u
osnovi retkih bolesti, genomika je omogućila i otkriće gena modifikatora koji
mogu da objasne uočene nedoslednosti u korelaciji genotipa i fenotipa.
Fenilketonurija je urođena metabolička retka bolest koja je uzrokovana
varijantama u genu za fenilalanin hidroksilazu (PAH). U ovoj studiji, sproveli
smo sekvenciranje kompletnog genoma 4 osobe iz nepovezanih nesrodnih porodica
koje su imale patogene varijante u PAH genu, ali nisu razvile fenilketonuriju
uprkos tome što nisu bile lečene. Otkrili smo dve nove varijante, p.Pro1591Ala
u SHANK1 i p.Asp18Asn u SHANK2 genima, kao i prethodno opisane
SHANK2:p.Gly46Ser, SHANK2:p.Pro1388_Phe1389insLeuPro i SHANK3:p.Pro1716Thr
varijante. Računarske predikcije su pokazale da identifikovane varijante ne
ukidaju funkciju SHANK proteina. Međutim, promene u posttranslacionim
modifikacijama SHANK proteina mogu uticati na funkcionisanje
glutamatergičnih sinapsi, regulaciju citoskeleta i doprineti održavanju
optimalne sinaptičke gustine i broja dendritskih bodlji. Naši rezultati po
prvi put povezuju porodicu SHANK gena i osobine neuroloških promena kod
osoba sa fenilketonurijom., Током последњих деценија, истраживања на пољу ретких болести напредују
огромном брзином услед све веће употребе секвенцирања нове генерације (енгл.
Next-generation sequencing, NGS). Секвенцирање комплетног љуског генома (енгл.
Whole genome sequencing, WGS) особа које болују од ретких болести је постало
лако доступно. Поред проналажења нових варијанти и нових гена који леже у
основи ретких болести, геномика је омогућила и откриће гена модификатора који
могу да објасне уочене недоследности у корелацији генотипа и фенотипа.
Фенилкетонурија је урођена метаболичка ретка болест која је узрокована
варијантама у гену за фенилаланин хидроксилазу (PAH). У овој студији, спровели
смо секвенцирање комплетног генома 4 особе из неповезаних несродних породица
које су имале патогене варијанте у PAH гену, али нису развиле фенилкетонурију
упркос томе што нису биле лечене. Открили смо две нове варијанте, p.Pro1591Ala
у SHANK1 и p.Asp18Asn у SHANK2 генима, као и претходно описане
SHANK2:p.Gly46Ser, SHANK2:p.Pro1388_Phe1389insLeuPro и SHANK3:p.Pro1716Thr
варијанте. Рачунарске предикције су показале да идентификоване варијанте не
укидају функцију SHANK протеина. Међутим, промене у посттранслационим
модификацијама SHANK протеина могу утицати на функционисање
глутаматергичних синапси, регулацију цитоскелета и допринети одржавању
оптималне синаптичке густине и броја дендритских бодљи. Наши резултати по
први пут повезују породицу SHANK гена и особине неуролошких промена код
особа са фенилкетонуријом.",
publisher = "Beograd : Srpsko biološko društvo",
journal = "Treći kongres biologa Srbije",
title = "Retke bolesti u eri genomike, Ретке болести у ери геномике",
pages = "287",
url = "https://hdl.handle.net/21.15107/rcub_imagine_1747"
}

Stojiljković, M., Klaassen, K., Skakić, A., Anđelković, M., Spasovski, V., Ugrin, M., Komazec, J., Parezanović, M., Stevanović, N.,& Pavlović, S.. (2022). Retke bolesti u eri genomike. in Treći kongres biologa Srbije
Beograd : Srpsko biološko društvo., 287.
https://hdl.handle.net/21.15107/rcub_imagine_1747

Stojiljković M, Klaassen K, Skakić A, Anđelković M, Spasovski V, Ugrin M, Komazec J, Parezanović M, Stevanović N, Pavlović S. Retke bolesti u eri genomike. in Treći kongres biologa Srbije. 2022;:287.
https://hdl.handle.net/21.15107/rcub_imagine_1747 .

Stojiljković, Maja, Klaassen, Kristel, Skakić, Anita, Anđelković, Marina, Spasovski, Vesna, Ugrin, Milena, Komazec, Jovana, Parezanović, Marina, Stevanović, Nina, Pavlović, Sonja, "Retke bolesti u eri genomike" in Treći kongres biologa Srbije (2022):287,
https://hdl.handle.net/21.15107/rcub_imagine_1747 .

TY  - CONF
AU  - Parezanović, Marina
AU  - Stojiljković, Maja
AU  - Anđelković, Marina
AU  - Stevanović, Nina
AU  - Spasovski, Vesna
AU  - Ugrin, Milena
AU  - Komazec, Jovana
AU  - Tošić, Nataša
AU  - Pavlović, Sonja
AU  - Ćelić, Dejan
AU  - Vučenović, Jelica
AU  - Skakić, Anita
PY  - 2022
UR  - https://imagine.imgge.bg.ac.rs/handle/123456789/1740
AB  - Fabrijeva bolest (FB) je retka, monogenska bolest, koja se odlikuje veoma
heterogenom kliničkom slikom izazvanom promenama u genu GLA, smeštenom na
dugom kraku hromozoma H. Usled narušene funkcije lizozomalnog enzima α-
galaktozidaze A dolazi do nagomilavanja Gb3 supstrata, što dovodi do
multisistemskih oštećenja. Precizna molekularno-genetička dijagnoza je
esencijalna kako bi se pacijentima omogućilo pravovremeno lečenje. U našoj
studiji, analizirano je 95 ispitanika suspektnih na FB Sangerovim
sekvenciranjem svih egzona i okolnih intronskih regiona gena GLA, nakon čega je
izmerena relativna ekspresija kod 6 pacijenata. Genetičkom analizom kod 3
pacijenta detektovana je kodirajuća varijanta (p.D313Y), dok je kod 10 pacijenata
detektovana kombinacija intronskih varijanti, opisanih kao kompleksni
intronski haplotip (KIH). KIH1 (c.-10C>T, c.370-81_370-77delCAGCC, c.640-
16A>G, c.1000-22C>T), najčešći haplotip, detektovan je kod 7 (7,4%) pacijenata.
Uprkos normalnim biohemijskim parametrima, rezultati RT-qPCR metode
pokazali su snižen nivo ekspresije gena GLA u perifernoj krvi za 9,1%, 7,4%,
46,3% kod dve pacijentkinje (KIH1) i jedne pacijentkinje kod koje je detektovana
promotorska varijanta c.-10C>T, respektivno, ukazujući na potrebu dodatnih
analiza za konačno uspostavljanje dijagnoze FB. Uzevši u obzir da efekat
intronskih haplotipova nije funkcionalno okarakterisan, naša studija ukazuje
na važnost analiziranja intronskih regiona gena GLA kao potencijalnih
genetičkih modifikatora FB.
AB  - Фабријева болест (ФБ) је ретка, моногенска болест, која се одликује веома
хетерогеном клиничком сликом изазваном променама у гену GLA, смештеном на
дугом краку хромозома Х. Услед нарушене функције лизозомалног ензима α-
галактозидазе А долази до нагомилавања Gb3 супстрата, што доводи до
мултисистемских оштећења. Прецизна молекуларно-генетичка дијагноза је
есенцијална како би се пацијентима омогућило правовремено лечење. У нашој
студији, анализирано је 95 испитаника суспектних на ФБ Сангеровим
секвенцирањем свих егзона и околних интронских региона гена GLA, након чега је
измерена релативна експресија код 6 пацијената. Генетичком анализом код 3
пацијента детектована је кодирајућа варијанта (p.D313Y), док је код 10 пацијената
детектована комбинација интронских варијанти, описаних као комплексни
интронски хаплотип (КИХ). КИХ1 (c.-10C>T, c.370-81_370-77delCAGCC, c.640-
16A>G, c.1000-22C>T), најчешћи хаплотип, детектован је код 7 (7,4%) пацијената.
Упркос нормалним биохемијским параметрима, резултати RT-qPCR методе
показали су снижен ниво експресије гена GLA у периферној крви за 9,1%, 7,4%,
46,3% код две пацијенткиње (КИХ1) и једне пацијенткиње код које је детектована
промоторска варијанта c.-10C>T, респективно, указујући на потребу додатних
анализа за коначно успостављање дијагнозе ФБ. Узевши у обзир да ефекат
интронских хаплотипова није функционално окарактерисан, наша студија указује
на важност анализирања интронских региона гена GLA као потенцијалних
генетичких модификатора ФБ.
PB  - Beograd : Srpsko biološko društvo
C3  - Treći kongres biologa Srbije
T1  - Molekularna dijagnostika Fabrijeve bolesti kod pacijenata sa hroničnom bubrežnom insuficijencijom nepoznate etiologije
T1  - Молекуларна дијагностика Фабријеве болести код пацијената са хроничном бубрежном инсуфицијенцијом непознате етиологије
SP  - 313
UR  - https://hdl.handle.net/21.15107/rcub_imagine_1740
ER  - 

@conference{
author = "Parezanović, Marina and Stojiljković, Maja and Anđelković, Marina and Stevanović, Nina and Spasovski, Vesna and Ugrin, Milena and Komazec, Jovana and Tošić, Nataša and Pavlović, Sonja and Ćelić, Dejan and Vučenović, Jelica and Skakić, Anita",
year = "2022",
abstract = "Fabrijeva bolest (FB) je retka, monogenska bolest, koja se odlikuje veoma
heterogenom kliničkom slikom izazvanom promenama u genu GLA, smeštenom na
dugom kraku hromozoma H. Usled narušene funkcije lizozomalnog enzima α-
galaktozidaze A dolazi do nagomilavanja Gb3 supstrata, što dovodi do
multisistemskih oštećenja. Precizna molekularno-genetička dijagnoza je
esencijalna kako bi se pacijentima omogućilo pravovremeno lečenje. U našoj
studiji, analizirano je 95 ispitanika suspektnih na FB Sangerovim
sekvenciranjem svih egzona i okolnih intronskih regiona gena GLA, nakon čega je
izmerena relativna ekspresija kod 6 pacijenata. Genetičkom analizom kod 3
pacijenta detektovana je kodirajuća varijanta (p.D313Y), dok je kod 10 pacijenata
detektovana kombinacija intronskih varijanti, opisanih kao kompleksni
intronski haplotip (KIH). KIH1 (c.-10C>T, c.370-81_370-77delCAGCC, c.640-
16A>G, c.1000-22C>T), najčešći haplotip, detektovan je kod 7 (7,4%) pacijenata.
Uprkos normalnim biohemijskim parametrima, rezultati RT-qPCR metode
pokazali su snižen nivo ekspresije gena GLA u perifernoj krvi za 9,1%, 7,4%,
46,3% kod dve pacijentkinje (KIH1) i jedne pacijentkinje kod koje je detektovana
promotorska varijanta c.-10C>T, respektivno, ukazujući na potrebu dodatnih
analiza za konačno uspostavljanje dijagnoze FB. Uzevši u obzir da efekat
intronskih haplotipova nije funkcionalno okarakterisan, naša studija ukazuje
na važnost analiziranja intronskih regiona gena GLA kao potencijalnih
genetičkih modifikatora FB., Фабријева болест (ФБ) је ретка, моногенска болест, која се одликује веома
хетерогеном клиничком сликом изазваном променама у гену GLA, смештеном на
дугом краку хромозома Х. Услед нарушене функције лизозомалног ензима α-
галактозидазе А долази до нагомилавања Gb3 супстрата, што доводи до
мултисистемских оштећења. Прецизна молекуларно-генетичка дијагноза је
есенцијална како би се пацијентима омогућило правовремено лечење. У нашој
студији, анализирано је 95 испитаника суспектних на ФБ Сангеровим
секвенцирањем свих егзона и околних интронских региона гена GLA, након чега је
измерена релативна експресија код 6 пацијената. Генетичком анализом код 3
пацијента детектована је кодирајућа варијанта (p.D313Y), док је код 10 пацијената
детектована комбинација интронских варијанти, описаних као комплексни
интронски хаплотип (КИХ). КИХ1 (c.-10C>T, c.370-81_370-77delCAGCC, c.640-
16A>G, c.1000-22C>T), најчешћи хаплотип, детектован је код 7 (7,4%) пацијената.
Упркос нормалним биохемијским параметрима, резултати RT-qPCR методе
показали су снижен ниво експресије гена GLA у периферној крви за 9,1%, 7,4%,
46,3% код две пацијенткиње (КИХ1) и једне пацијенткиње код које је детектована
промоторска варијанта c.-10C>T, респективно, указујући на потребу додатних
анализа за коначно успостављање дијагнозе ФБ. Узевши у обзир да ефекат
интронских хаплотипова није функционално окарактерисан, наша студија указује
на важност анализирања интронских региона гена GLA као потенцијалних
генетичких модификатора ФБ.",
publisher = "Beograd : Srpsko biološko društvo",
journal = "Treći kongres biologa Srbije",
title = "Molekularna dijagnostika Fabrijeve bolesti kod pacijenata sa hroničnom bubrežnom insuficijencijom nepoznate etiologije, Молекуларна дијагностика Фабријеве болести код пацијената са хроничном бубрежном инсуфицијенцијом непознате етиологије",
pages = "313",
url = "https://hdl.handle.net/21.15107/rcub_imagine_1740"
}

Parezanović, M., Stojiljković, M., Anđelković, M., Stevanović, N., Spasovski, V., Ugrin, M., Komazec, J., Tošić, N., Pavlović, S., Ćelić, D., Vučenović, J.,& Skakić, A.. (2022). Molekularna dijagnostika Fabrijeve bolesti kod pacijenata sa hroničnom bubrežnom insuficijencijom nepoznate etiologije. in Treći kongres biologa Srbije
Beograd : Srpsko biološko društvo., 313.
https://hdl.handle.net/21.15107/rcub_imagine_1740

Parezanović M, Stojiljković M, Anđelković M, Stevanović N, Spasovski V, Ugrin M, Komazec J, Tošić N, Pavlović S, Ćelić D, Vučenović J, Skakić A. Molekularna dijagnostika Fabrijeve bolesti kod pacijenata sa hroničnom bubrežnom insuficijencijom nepoznate etiologije. in Treći kongres biologa Srbije. 2022;:313.
https://hdl.handle.net/21.15107/rcub_imagine_1740 .

Parezanović, Marina, Stojiljković, Maja, Anđelković, Marina, Stevanović, Nina, Spasovski, Vesna, Ugrin, Milena, Komazec, Jovana, Tošić, Nataša, Pavlović, Sonja, Ćelić, Dejan, Vučenović, Jelica, Skakić, Anita, "Molekularna dijagnostika Fabrijeve bolesti kod pacijenata sa hroničnom bubrežnom insuficijencijom nepoznate etiologije" in Treći kongres biologa Srbije (2022):313,
https://hdl.handle.net/21.15107/rcub_imagine_1740 .

TY  - JOUR
AU  - Stevanović, Nina
AU  - Skakić, Anita
AU  - Minić, Predrag
AU  - Sovtić, Aleksandar
AU  - Stojiljković, Maja
AU  - Pavlović, Sonja
AU  - Anđelković, Marina
PY  - 2021
UR  - https://imagine.imgge.bg.ac.rs/handle/123456789/1456
AB  - Primary ciliary dyskinesia (PCD) is a disease caused by impaired function of motile cilia. PCD mainly affects the lungs and reproductive organs. Inheritance is autosomal recessive and X-linked. PCD patients have diverse clinical manifestations, thus making the establishment of proper diagnosis challenging. The utility of next-generation sequencing (NGS) technology for diagnostic purposes allows for better understanding of the PCD genetic background. However, identification of specific disease-causing variants is difficult. The main aim of this study was to create a unique guideline that will enable the standardization of the assessment of novel genetic variants within PCD-associated genes. The designed pipeline consists of three main steps: (1) sequencing, detection, and identification of genes/variants; (2) classification of variants according to their effect; and (3) variant characterization using in silico structural and functional analysis. The pipeline was validated through the analysis of the variants detected in a well-known PCD disease-causing gene (DNAI1) and the novel candidate gene (SPAG16). The application of this pipeline resulted in identification of potential disease-causing variants, as well as validation of the variants pathogenicity, through their analysis on transcriptional, translational, and posttranslational levels. The application of this pipeline leads to the confirmation of PCD diagnosis and enables a shift from candidate to PCD disease-causing gene.
PB  - MDPI, Basel
T2  - International Journal of Molecular Sciences
T1  - Identification and Classification of Novel Genetic Variants: En Route to the Diagnosis of Primary Ciliary Dyskinesia
IS  - 16
VL  - 22
DO  - 10.3390/ijms22168821
ER  - 

@article{
author = "Stevanović, Nina and Skakić, Anita and Minić, Predrag and Sovtić, Aleksandar and Stojiljković, Maja and Pavlović, Sonja and Anđelković, Marina",
year = "2021",
abstract = "Primary ciliary dyskinesia (PCD) is a disease caused by impaired function of motile cilia. PCD mainly affects the lungs and reproductive organs. Inheritance is autosomal recessive and X-linked. PCD patients have diverse clinical manifestations, thus making the establishment of proper diagnosis challenging. The utility of next-generation sequencing (NGS) technology for diagnostic purposes allows for better understanding of the PCD genetic background. However, identification of specific disease-causing variants is difficult. The main aim of this study was to create a unique guideline that will enable the standardization of the assessment of novel genetic variants within PCD-associated genes. The designed pipeline consists of three main steps: (1) sequencing, detection, and identification of genes/variants; (2) classification of variants according to their effect; and (3) variant characterization using in silico structural and functional analysis. The pipeline was validated through the analysis of the variants detected in a well-known PCD disease-causing gene (DNAI1) and the novel candidate gene (SPAG16). The application of this pipeline resulted in identification of potential disease-causing variants, as well as validation of the variants pathogenicity, through their analysis on transcriptional, translational, and posttranslational levels. The application of this pipeline leads to the confirmation of PCD diagnosis and enables a shift from candidate to PCD disease-causing gene.",
publisher = "MDPI, Basel",
journal = "International Journal of Molecular Sciences",
title = "Identification and Classification of Novel Genetic Variants: En Route to the Diagnosis of Primary Ciliary Dyskinesia",
number = "16",
volume = "22",
doi = "10.3390/ijms22168821"
}

Stevanović, N., Skakić, A., Minić, P., Sovtić, A., Stojiljković, M., Pavlović, S.,& Anđelković, M.. (2021). Identification and Classification of Novel Genetic Variants: En Route to the Diagnosis of Primary Ciliary Dyskinesia. in International Journal of Molecular Sciences
MDPI, Basel., 22(16).
https://doi.org/10.3390/ijms22168821

Stevanović N, Skakić A, Minić P, Sovtić A, Stojiljković M, Pavlović S, Anđelković M. Identification and Classification of Novel Genetic Variants: En Route to the Diagnosis of Primary Ciliary Dyskinesia. in International Journal of Molecular Sciences. 2021;22(16).
doi:10.3390/ijms22168821 .

Stevanović, Nina, Skakić, Anita, Minić, Predrag, Sovtić, Aleksandar, Stojiljković, Maja, Pavlović, Sonja, Anđelković, Marina, "Identification and Classification of Novel Genetic Variants: En Route to the Diagnosis of Primary Ciliary Dyskinesia" in International Journal of Molecular Sciences, 22, no. 16 (2021),
https://doi.org/10.3390/ijms22168821 . .