Radaković, Nataša

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Authority KeyName Variants
orcid::0000-0003-2346-381X
  • Radaković, Nataša (8)
  • Radakovic, Natasa (1)

Author's Bibliography

Three lines of evidence of the hepatotoxicity young researchers of a mixture containing phthalates and bisphenol a: in silico and two in vivo models

Baralić, Katarina; Pavić, Aleksandar; Javorac, Dragana; Živančević, Katarina; Božić, Dragica; Radaković, Nataša; Antonijević Miljaković, Evica; Buha Djordjevic, Aleksandra; Ćurčić, Marijana; Bulat, Zorica; Antonijević, Biljana; Đukić-Ćosić, Danijela

(Beograd : Udruženje toksikologa Srbije, 2023)

TY  - CONF
AU  - Baralić, Katarina
AU  - Pavić, Aleksandar
AU  - Javorac, Dragana
AU  - Živančević, Katarina
AU  - Božić, Dragica
AU  - Radaković, Nataša
AU  - Antonijević Miljaković, Evica
AU  - Buha Djordjevic, Aleksandra
AU  - Ćurčić, Marijana
AU  - Bulat, Zorica
AU  - Antonijević, Biljana
AU  - Đukić-Ćosić, Danijela
PY  - 2023
UR  - https://imagine.imgge.bg.ac.rs/handle/123456789/2283
AB  - The extensive usage of bis(2-ethylhexyl) phthalate (DEHP), dibutyl phthalate (DBP), and bisphenol A
(BPA) creates a lot of opportunities for combined human exposure to these hazardous compounds in
everyday life and a variety of negative outcomes, including hepatotoxicity. In silico research and two
in vivo models were used to investigate the links between a mixture including DEHP, DBP and BPA and
liver injury. Bioinformatic analysis was performed by Comparative Toxicogenomics Database, ShinyGO,
ToppCluster, and Cytoscape. In vivo subacute study included five groups of rats (n = 6): (1) Control: corn
oil, (2) DEHP: 50 mg/kg b.w./day, (3) DBP: 50 mg/kg b.w./day, (4) BPA: 25 mg/kg b.w./day, (5) MIX: DEHP
+ DBP + BPA. Zebrafish embryos were exposed to the investigated substances in multiple dosages, both
alone and in combination (binary and ternary mixtures). Liver damage was linked to 75 DEHP, DBP, and
BPA genes, the majority of which were associated with inflammation/oxidative stress, identified as the
most relevant molecular pathways. In rats, significant changes in redox status/bioelements’ level and
pathohistology were more pronounced or evident only in MIX group, suggesting probable additivity.
In a dose-dependent manner, BPA reduced the liver area (LA) index. LA values were decreased by DEHP
(2 μg/mL) and DBP (5 μg/mL), whereas LA index was raised by their higher concentrations. In binary
mixtures, DBP had a lethal effect at the two highest concentrations, whereas BPA directed hepatotoxicity
of the DEHP/DBP/BPA mixture.
PB  - Beograd : Udruženje toksikologa Srbije
C3  - 13th International congress of the Serbian society of toxicology and 1. TOXSEE regional conference – present and future of toxicology: challenges and opportunities
T1  - Three lines of evidence of the hepatotoxicity young researchers of a mixture containing phthalates and bisphenol a: in silico and two in vivo models
EP  - 56
SP  - 56
UR  - https://hdl.handle.net/21.15107/rcub_imagine_2283
ER  - 
@conference{
author = "Baralić, Katarina and Pavić, Aleksandar and Javorac, Dragana and Živančević, Katarina and Božić, Dragica and Radaković, Nataša and Antonijević Miljaković, Evica and Buha Djordjevic, Aleksandra and Ćurčić, Marijana and Bulat, Zorica and Antonijević, Biljana and Đukić-Ćosić, Danijela",
year = "2023",
abstract = "The extensive usage of bis(2-ethylhexyl) phthalate (DEHP), dibutyl phthalate (DBP), and bisphenol A
(BPA) creates a lot of opportunities for combined human exposure to these hazardous compounds in
everyday life and a variety of negative outcomes, including hepatotoxicity. In silico research and two
in vivo models were used to investigate the links between a mixture including DEHP, DBP and BPA and
liver injury. Bioinformatic analysis was performed by Comparative Toxicogenomics Database, ShinyGO,
ToppCluster, and Cytoscape. In vivo subacute study included five groups of rats (n = 6): (1) Control: corn
oil, (2) DEHP: 50 mg/kg b.w./day, (3) DBP: 50 mg/kg b.w./day, (4) BPA: 25 mg/kg b.w./day, (5) MIX: DEHP
+ DBP + BPA. Zebrafish embryos were exposed to the investigated substances in multiple dosages, both
alone and in combination (binary and ternary mixtures). Liver damage was linked to 75 DEHP, DBP, and
BPA genes, the majority of which were associated with inflammation/oxidative stress, identified as the
most relevant molecular pathways. In rats, significant changes in redox status/bioelements’ level and
pathohistology were more pronounced or evident only in MIX group, suggesting probable additivity.
In a dose-dependent manner, BPA reduced the liver area (LA) index. LA values were decreased by DEHP
(2 μg/mL) and DBP (5 μg/mL), whereas LA index was raised by their higher concentrations. In binary
mixtures, DBP had a lethal effect at the two highest concentrations, whereas BPA directed hepatotoxicity
of the DEHP/DBP/BPA mixture.",
publisher = "Beograd : Udruženje toksikologa Srbije",
journal = "13th International congress of the Serbian society of toxicology and 1. TOXSEE regional conference – present and future of toxicology: challenges and opportunities",
title = "Three lines of evidence of the hepatotoxicity young researchers of a mixture containing phthalates and bisphenol a: in silico and two in vivo models",
pages = "56-56",
url = "https://hdl.handle.net/21.15107/rcub_imagine_2283"
}
Baralić, K., Pavić, A., Javorac, D., Živančević, K., Božić, D., Radaković, N., Antonijević Miljaković, E., Buha Djordjevic, A., Ćurčić, M., Bulat, Z., Antonijević, B.,& Đukić-Ćosić, D.. (2023). Three lines of evidence of the hepatotoxicity young researchers of a mixture containing phthalates and bisphenol a: in silico and two in vivo models. in 13th International congress of the Serbian society of toxicology and 1. TOXSEE regional conference – present and future of toxicology: challenges and opportunities
Beograd : Udruženje toksikologa Srbije., 56-56.
https://hdl.handle.net/21.15107/rcub_imagine_2283
Baralić K, Pavić A, Javorac D, Živančević K, Božić D, Radaković N, Antonijević Miljaković E, Buha Djordjevic A, Ćurčić M, Bulat Z, Antonijević B, Đukić-Ćosić D. Three lines of evidence of the hepatotoxicity young researchers of a mixture containing phthalates and bisphenol a: in silico and two in vivo models. in 13th International congress of the Serbian society of toxicology and 1. TOXSEE regional conference – present and future of toxicology: challenges and opportunities. 2023;:56-56.
https://hdl.handle.net/21.15107/rcub_imagine_2283 .
Baralić, Katarina, Pavić, Aleksandar, Javorac, Dragana, Živančević, Katarina, Božić, Dragica, Radaković, Nataša, Antonijević Miljaković, Evica, Buha Djordjevic, Aleksandra, Ćurčić, Marijana, Bulat, Zorica, Antonijević, Biljana, Đukić-Ćosić, Danijela, "Three lines of evidence of the hepatotoxicity young researchers of a mixture containing phthalates and bisphenol a: in silico and two in vivo models" in 13th International congress of the Serbian society of toxicology and 1. TOXSEE regional conference – present and future of toxicology: challenges and opportunities (2023):56-56,
https://hdl.handle.net/21.15107/rcub_imagine_2283 .

Toxicity testing of D, L-sulforaphane in a zebrafish model

Pavić, Aleksandar; Radaković, Nataša; Srdić-Rajić, Tatjana; Božić, Dragica; Baralić, Katarina; Đukić-Ćosić, Danijela

(Beograd : Udruženje toksikologa Srbije, 2023)

TY  - CONF
AU  - Pavić, Aleksandar
AU  - Radaković, Nataša
AU  - Srdić-Rajić, Tatjana
AU  - Božić, Dragica
AU  - Baralić, Katarina
AU  - Đukić-Ćosić, Danijela
PY  - 2023
UR  - https://imagine.imgge.bg.ac.rs/handle/123456789/2282
AB  - Sulforaphane (SFN) belongs to the group of isothiocyanates and is present in many cruciferous plants,
especially broccoli. The positive properties of this bioactive molecule in the form of extracts have been
shown in numerous studies and include antibacterial, cardioprotective, and neuroprotective effects,
antioxidant and immunomodulatory effects, as well as positive effects in various cancers.
However, the potential for harmful effects of SFN has not been sufficiently investigated, particularly for
chemically obtained D,L-sulforaphane. This study aimed to investigate the toxicity of D,L-sulforaphane
on zebrafish (Danio rerio) model. Wild (AB) strain embryos and zebrafish transgenic lines with fluorescently
labeled liver cells (Tg(fabp:EGFP)) and endothelial cells of blood vessels (Tg(fli1:EGFP)) were used,
treated with different concentrations of SFN (1 to 20 μg/mL).
The survival of embryos, developmental toxicity, hepatotoxicity and cardiotoxicity were monitored for
five days. A concentration of 20 μg/mL of D,L-sulforaphane caused the death of all embryos, while the
median lethal concentration (LC50) was found to be 14.2 μg/mL. D,L-sulforaphane exhibited toxic
effects at concentrations higher than 3 μg/mL, primarily on the development of the swim bladder (4
μg/mL), and growth and development of embryos (4.58 μg/mL), while harmful effects on the liver (liver
size and yolk resorption) were observed at a concentration of 10 μg/mL. Effects on the cardiovascular
system were not observed at concentrations from 1 to 10 μg/mL. The investigation of D,L-sulforaphane
on zebrafish embryos showed that harmful effects occur at very low concentrations, indicating the
need for further investigation of toxicological potential of this molecule.
PB  - Beograd : Udruženje toksikologa Srbije
C3  - 13th International congress of the Serbian society of toxicology and 1. TOXSEE regional conference – present and future of toxicology: challenges and opportunities
T1  - Toxicity testing of D, L-sulforaphane in a zebrafish model
EP  - 254
SP  - 254
UR  - https://hdl.handle.net/21.15107/rcub_imagine_2282
ER  - 
@conference{
author = "Pavić, Aleksandar and Radaković, Nataša and Srdić-Rajić, Tatjana and Božić, Dragica and Baralić, Katarina and Đukić-Ćosić, Danijela",
year = "2023",
abstract = "Sulforaphane (SFN) belongs to the group of isothiocyanates and is present in many cruciferous plants,
especially broccoli. The positive properties of this bioactive molecule in the form of extracts have been
shown in numerous studies and include antibacterial, cardioprotective, and neuroprotective effects,
antioxidant and immunomodulatory effects, as well as positive effects in various cancers.
However, the potential for harmful effects of SFN has not been sufficiently investigated, particularly for
chemically obtained D,L-sulforaphane. This study aimed to investigate the toxicity of D,L-sulforaphane
on zebrafish (Danio rerio) model. Wild (AB) strain embryos and zebrafish transgenic lines with fluorescently
labeled liver cells (Tg(fabp:EGFP)) and endothelial cells of blood vessels (Tg(fli1:EGFP)) were used,
treated with different concentrations of SFN (1 to 20 μg/mL).
The survival of embryos, developmental toxicity, hepatotoxicity and cardiotoxicity were monitored for
five days. A concentration of 20 μg/mL of D,L-sulforaphane caused the death of all embryos, while the
median lethal concentration (LC50) was found to be 14.2 μg/mL. D,L-sulforaphane exhibited toxic
effects at concentrations higher than 3 μg/mL, primarily on the development of the swim bladder (4
μg/mL), and growth and development of embryos (4.58 μg/mL), while harmful effects on the liver (liver
size and yolk resorption) were observed at a concentration of 10 μg/mL. Effects on the cardiovascular
system were not observed at concentrations from 1 to 10 μg/mL. The investigation of D,L-sulforaphane
on zebrafish embryos showed that harmful effects occur at very low concentrations, indicating the
need for further investigation of toxicological potential of this molecule.",
publisher = "Beograd : Udruženje toksikologa Srbije",
journal = "13th International congress of the Serbian society of toxicology and 1. TOXSEE regional conference – present and future of toxicology: challenges and opportunities",
title = "Toxicity testing of D, L-sulforaphane in a zebrafish model",
pages = "254-254",
url = "https://hdl.handle.net/21.15107/rcub_imagine_2282"
}
Pavić, A., Radaković, N., Srdić-Rajić, T., Božić, D., Baralić, K.,& Đukić-Ćosić, D.. (2023). Toxicity testing of D, L-sulforaphane in a zebrafish model. in 13th International congress of the Serbian society of toxicology and 1. TOXSEE regional conference – present and future of toxicology: challenges and opportunities
Beograd : Udruženje toksikologa Srbije., 254-254.
https://hdl.handle.net/21.15107/rcub_imagine_2282
Pavić A, Radaković N, Srdić-Rajić T, Božić D, Baralić K, Đukić-Ćosić D. Toxicity testing of D, L-sulforaphane in a zebrafish model. in 13th International congress of the Serbian society of toxicology and 1. TOXSEE regional conference – present and future of toxicology: challenges and opportunities. 2023;:254-254.
https://hdl.handle.net/21.15107/rcub_imagine_2282 .
Pavić, Aleksandar, Radaković, Nataša, Srdić-Rajić, Tatjana, Božić, Dragica, Baralić, Katarina, Đukić-Ćosić, Danijela, "Toxicity testing of D, L-sulforaphane in a zebrafish model" in 13th International congress of the Serbian society of toxicology and 1. TOXSEE regional conference – present and future of toxicology: challenges and opportunities (2023):254-254,
https://hdl.handle.net/21.15107/rcub_imagine_2282 .

Amide containing NBTI antibacterials with reduced hERG inhibition, retained antimicrobial activity against gram-positive bacteria and in vivo efficacy

Kokot, Maja; Weiss, Matjaž; Zdovc, Irena; Šenerović, Lidija; Radakovic, Natasa; Anderluh, Marko; Minovski, Nikola; Hrast, Martina

(2023)

TY  - JOUR
AU  - Kokot, Maja
AU  - Weiss, Matjaž
AU  - Zdovc, Irena
AU  - Šenerović, Lidija
AU  - Radakovic, Natasa
AU  - Anderluh, Marko
AU  - Minovski, Nikola
AU  - Hrast, Martina
PY  - 2023
UR  - https://www.sciencedirect.com/science/article/pii/S0223523423000752
UR  - https://imagine.imgge.bg.ac.rs/handle/123456789/1779
AB  - Novel bacterial topoisomerase inhibitors (NBTIs) are new promising antimicrobials for the treatment of multidrug-resistant bacterial infections. In recent years, many new NBTIs have been discovered, however most of them struggle with the same issue - the balance between antibacterial activity and hERG-related toxicity. We started a new campaign by optimizing the previous series of NBTIs, followed by the design and synthesis of a new, amide-containing focused NBTI library to reduce hERG inhibition and maintain antibacterial activity against Gram-positive bacteria, including methicillin-resistant Staphylococcus aureus (MRSA). This optimization strategy yielded the lead compound 12 that exhibits potent antibacterial activity against Gram-positive bacteria, reduced hERG inhibition, no cardiotoxicity in zebrafish model, and a favorable in vivo efficacy in a neutropenic murine thigh infection model of MRSA infection.
T2  - European Journal of Medicinal Chemistry
T2  - European Journal of Medicinal ChemistryEuropean Journal of Medicinal Chemistry
T1  - Amide containing NBTI antibacterials with reduced hERG inhibition, retained antimicrobial activity against gram-positive bacteria and in vivo efficacy
SP  - 115160
VL  - 250
DO  - 10.1016/j.ejmech.2023.115160
ER  - 
@article{
author = "Kokot, Maja and Weiss, Matjaž and Zdovc, Irena and Šenerović, Lidija and Radakovic, Natasa and Anderluh, Marko and Minovski, Nikola and Hrast, Martina",
year = "2023",
abstract = "Novel bacterial topoisomerase inhibitors (NBTIs) are new promising antimicrobials for the treatment of multidrug-resistant bacterial infections. In recent years, many new NBTIs have been discovered, however most of them struggle with the same issue - the balance between antibacterial activity and hERG-related toxicity. We started a new campaign by optimizing the previous series of NBTIs, followed by the design and synthesis of a new, amide-containing focused NBTI library to reduce hERG inhibition and maintain antibacterial activity against Gram-positive bacteria, including methicillin-resistant Staphylococcus aureus (MRSA). This optimization strategy yielded the lead compound 12 that exhibits potent antibacterial activity against Gram-positive bacteria, reduced hERG inhibition, no cardiotoxicity in zebrafish model, and a favorable in vivo efficacy in a neutropenic murine thigh infection model of MRSA infection.",
journal = "European Journal of Medicinal Chemistry, European Journal of Medicinal ChemistryEuropean Journal of Medicinal Chemistry",
title = "Amide containing NBTI antibacterials with reduced hERG inhibition, retained antimicrobial activity against gram-positive bacteria and in vivo efficacy",
pages = "115160",
volume = "250",
doi = "10.1016/j.ejmech.2023.115160"
}
Kokot, M., Weiss, M., Zdovc, I., Šenerović, L., Radakovic, N., Anderluh, M., Minovski, N.,& Hrast, M.. (2023). Amide containing NBTI antibacterials with reduced hERG inhibition, retained antimicrobial activity against gram-positive bacteria and in vivo efficacy. in European Journal of Medicinal Chemistry, 250, 115160.
https://doi.org/10.1016/j.ejmech.2023.115160
Kokot M, Weiss M, Zdovc I, Šenerović L, Radakovic N, Anderluh M, Minovski N, Hrast M. Amide containing NBTI antibacterials with reduced hERG inhibition, retained antimicrobial activity against gram-positive bacteria and in vivo efficacy. in European Journal of Medicinal Chemistry. 2023;250:115160.
doi:10.1016/j.ejmech.2023.115160 .
Kokot, Maja, Weiss, Matjaž, Zdovc, Irena, Šenerović, Lidija, Radakovic, Natasa, Anderluh, Marko, Minovski, Nikola, Hrast, Martina, "Amide containing NBTI antibacterials with reduced hERG inhibition, retained antimicrobial activity against gram-positive bacteria and in vivo efficacy" in European Journal of Medicinal Chemistry, 250 (2023):115160,
https://doi.org/10.1016/j.ejmech.2023.115160 . .
1
4
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Comprehensive investigation of hepatotoxicity of the mixture containing phthalates and bisphenol A

Baralić, Katarina; Pavić, Aleksandar; Javorac, Dragana; Živančević, Katarina; Božić, Dragica; Radaković, Nataša; Antonijević Miljaković, Evica; Buha Djordjevic, Aleksandra; Ćurčić, Marijana; Bulat, Zorica; Antonijević, Biljana; Đukić-Ćosić, Danijela

(2023)

TY  - JOUR
AU  - Baralić, Katarina
AU  - Pavić, Aleksandar
AU  - Javorac, Dragana
AU  - Živančević, Katarina
AU  - Božić, Dragica
AU  - Radaković, Nataša
AU  - Antonijević Miljaković, Evica
AU  - Buha Djordjevic, Aleksandra
AU  - Ćurčić, Marijana
AU  - Bulat, Zorica
AU  - Antonijević, Biljana
AU  - Đukić-Ćosić, Danijela
PY  - 2023
UR  - https://imagine.imgge.bg.ac.rs/handle/123456789/1661
AB  - Connections between the mixture containing bis(2- ethylhexyl) phthalate (DEHP), dibutyl phthalate (DBP) and bisphenol A (BPA) and liver injury were explored through in silico investigation and 2 in vivo models. Comparative Toxicogenomics Database (CTD), ShinyGO, ToppCluster and Cytoscape were used for bioinformatic analysis. In vivo subacute study was performed on rats - five groups (n = 6): (1) Control: corn oil, (2) DEHP: 50 mg/kg b.w./day, (3) DBP: 50 mg/kg b.w./day, (4) BPA: 25 mg/kg b.w./day, (5) MIX: DEHP + DBP + BPA. Zebrafish embryos were exposed to the investigated substances in different doses, singularly and combined (binary and ternary mixtures). Liver injury was linked to 75 DEHP, DBP, and BPA genes, mostly connected to inflammation/oxidative stress. In rats, significant alterations in redox status/bioelements and pathohistology were most notable or exclusively present in MIX (probable additive effects). BPA decreased liver area (LA) index in dose-dependent manner. DEHP (< 2 µg/mL) and DBP (≤ 5 µg/mL) reduced LA values, while their higher doses increased LA index. The effect of DBP in binary mixtures led to a lethal outcome at the two highest concentrations, while the hepatotoxicity of DEHP/DBP/BPA mixture was dictated by BPA (confirmed by the benchmark dose analysis).
T2  - Journal of Hazardous Materials
T2  - Journal of Hazardous Materials Journal of Hazardous Materials
T1  - Comprehensive investigation of hepatotoxicity of the mixture containing phthalates and bisphenol A
SP  - 130404
VL  - 445
DO  - 10.1016/j.jhazmat.2022.130404
ER  - 
@article{
author = "Baralić, Katarina and Pavić, Aleksandar and Javorac, Dragana and Živančević, Katarina and Božić, Dragica and Radaković, Nataša and Antonijević Miljaković, Evica and Buha Djordjevic, Aleksandra and Ćurčić, Marijana and Bulat, Zorica and Antonijević, Biljana and Đukić-Ćosić, Danijela",
year = "2023",
abstract = "Connections between the mixture containing bis(2- ethylhexyl) phthalate (DEHP), dibutyl phthalate (DBP) and bisphenol A (BPA) and liver injury were explored through in silico investigation and 2 in vivo models. Comparative Toxicogenomics Database (CTD), ShinyGO, ToppCluster and Cytoscape were used for bioinformatic analysis. In vivo subacute study was performed on rats - five groups (n = 6): (1) Control: corn oil, (2) DEHP: 50 mg/kg b.w./day, (3) DBP: 50 mg/kg b.w./day, (4) BPA: 25 mg/kg b.w./day, (5) MIX: DEHP + DBP + BPA. Zebrafish embryos were exposed to the investigated substances in different doses, singularly and combined (binary and ternary mixtures). Liver injury was linked to 75 DEHP, DBP, and BPA genes, mostly connected to inflammation/oxidative stress. In rats, significant alterations in redox status/bioelements and pathohistology were most notable or exclusively present in MIX (probable additive effects). BPA decreased liver area (LA) index in dose-dependent manner. DEHP (< 2 µg/mL) and DBP (≤ 5 µg/mL) reduced LA values, while their higher doses increased LA index. The effect of DBP in binary mixtures led to a lethal outcome at the two highest concentrations, while the hepatotoxicity of DEHP/DBP/BPA mixture was dictated by BPA (confirmed by the benchmark dose analysis).",
journal = "Journal of Hazardous Materials, Journal of Hazardous Materials Journal of Hazardous Materials",
title = "Comprehensive investigation of hepatotoxicity of the mixture containing phthalates and bisphenol A",
pages = "130404",
volume = "445",
doi = "10.1016/j.jhazmat.2022.130404"
}
Baralić, K., Pavić, A., Javorac, D., Živančević, K., Božić, D., Radaković, N., Antonijević Miljaković, E., Buha Djordjevic, A., Ćurčić, M., Bulat, Z., Antonijević, B.,& Đukić-Ćosić, D.. (2023). Comprehensive investigation of hepatotoxicity of the mixture containing phthalates and bisphenol A. in Journal of Hazardous Materials, 445, 130404.
https://doi.org/10.1016/j.jhazmat.2022.130404
Baralić K, Pavić A, Javorac D, Živančević K, Božić D, Radaković N, Antonijević Miljaković E, Buha Djordjevic A, Ćurčić M, Bulat Z, Antonijević B, Đukić-Ćosić D. Comprehensive investigation of hepatotoxicity of the mixture containing phthalates and bisphenol A. in Journal of Hazardous Materials. 2023;445:130404.
doi:10.1016/j.jhazmat.2022.130404 .
Baralić, Katarina, Pavić, Aleksandar, Javorac, Dragana, Živančević, Katarina, Božić, Dragica, Radaković, Nataša, Antonijević Miljaković, Evica, Buha Djordjevic, Aleksandra, Ćurčić, Marijana, Bulat, Zorica, Antonijević, Biljana, Đukić-Ćosić, Danijela, "Comprehensive investigation of hepatotoxicity of the mixture containing phthalates and bisphenol A" in Journal of Hazardous Materials, 445 (2023):130404,
https://doi.org/10.1016/j.jhazmat.2022.130404 . .
1
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7

Novel Quorum Quenching YtnP Lactonase From Bacillus paralicheniformis Reduces Pseudomonas aeruginosa Virulence and Increases Antibiotic Efficacy in vivo

Đokić, Lidija; Stanković, Nada; Galić, Ivana; Morić, Ivana; Radaković, Nataša; Segan, Sandra; Pavić, Aleksandar; Šenerović, Lidija

(Frontiers Media Sa, Lausanne, 2022)

TY  - JOUR
AU  - Đokić, Lidija
AU  - Stanković, Nada
AU  - Galić, Ivana
AU  - Morić, Ivana
AU  - Radaković, Nataša
AU  - Segan, Sandra
AU  - Pavić, Aleksandar
AU  - Šenerović, Lidija
PY  - 2022
UR  - https://imagine.imgge.bg.ac.rs/handle/123456789/1596
AB  - Bacterial infections have become increasingly difficult to treat due to the occurrence of antibiotic-resistant strains. A promising strategy to increase the efficacy of therapy is to combine antibacterials with agents that decrease pathogen virulence via the modulation of the quorum sensing (QS). Lactonases inhibit acylated homoserine lactone (AHL)-mediated QS in Gram-negative bacteria, including the leading nosocomial pathogen Pseudomonas aeruginosa. Here we describe the characteristics of heterologously expressed YtnP lactonase from Bacillus paralicheniformis ZP1 (YtnP-ZP1) isolated from agricultural soil using the culture enrichment method. Purified YtnP-ZP1 hydrolyzed different AHLs with preference to substrates with long acyl residues as evaluated in assays with biosensors and HPLC. The enzyme showed good thermostability and activity in a wide temperature range. YtnP-ZP1 in 50 mu g mL(-1) concentration reduced the amount of P. aeruginosa-produced long-chain AHLs by 85%, while it hydrolyzed 50% of short-chain AHLs. Incubation of P. aeruginosa PAO1 with YtnP-ZP1 reduced its swarming motility and elastolytic activity without bactericidal effect. YtnP-ZP1 caused the inhibition of biofilm formation and disintegration of mature biofilms in P. aeruginosa PAO1 and multiresistant clinical strain BR5H that was visualized by crystal violet staining. The treatment with YtnP-ZP1 in concentrations higher than 25 mu g mL(-1) improved the survival of P. aeruginosa PAO1-infected zebrafish (Danio rerio), rescuing 80% of embryos, while in combination with tobramycin or gentamicin survival rate increased to 100%. The treatment of P. aeruginosa PAO1 biofilms on infected zebrafish tail wounds with 50 mu g mL(-1) YtnP-ZP1 and 2 x MIC tobramycin led to infection clearing in 2 days. The extensive toxicity studies proved YtnP-ZP1 was non-toxic to human cells and zebrafish. In conclusion, novel YtnP-ZP1 lactonase with its effective anti-virulence activity could be used to increase the efficacy of clinically approved antibiotics in clearing both systemic and biofilm-associated P. aeruginosa infections.
PB  - Frontiers Media Sa, Lausanne
T2  - Frontiers in Microbiology
T1  - Novel Quorum Quenching YtnP Lactonase From Bacillus paralicheniformis Reduces Pseudomonas aeruginosa Virulence and Increases Antibiotic Efficacy in vivo
VL  - 13
DO  - 10.3389/fmicb.2022.906312
ER  - 
@article{
author = "Đokić, Lidija and Stanković, Nada and Galić, Ivana and Morić, Ivana and Radaković, Nataša and Segan, Sandra and Pavić, Aleksandar and Šenerović, Lidija",
year = "2022",
abstract = "Bacterial infections have become increasingly difficult to treat due to the occurrence of antibiotic-resistant strains. A promising strategy to increase the efficacy of therapy is to combine antibacterials with agents that decrease pathogen virulence via the modulation of the quorum sensing (QS). Lactonases inhibit acylated homoserine lactone (AHL)-mediated QS in Gram-negative bacteria, including the leading nosocomial pathogen Pseudomonas aeruginosa. Here we describe the characteristics of heterologously expressed YtnP lactonase from Bacillus paralicheniformis ZP1 (YtnP-ZP1) isolated from agricultural soil using the culture enrichment method. Purified YtnP-ZP1 hydrolyzed different AHLs with preference to substrates with long acyl residues as evaluated in assays with biosensors and HPLC. The enzyme showed good thermostability and activity in a wide temperature range. YtnP-ZP1 in 50 mu g mL(-1) concentration reduced the amount of P. aeruginosa-produced long-chain AHLs by 85%, while it hydrolyzed 50% of short-chain AHLs. Incubation of P. aeruginosa PAO1 with YtnP-ZP1 reduced its swarming motility and elastolytic activity without bactericidal effect. YtnP-ZP1 caused the inhibition of biofilm formation and disintegration of mature biofilms in P. aeruginosa PAO1 and multiresistant clinical strain BR5H that was visualized by crystal violet staining. The treatment with YtnP-ZP1 in concentrations higher than 25 mu g mL(-1) improved the survival of P. aeruginosa PAO1-infected zebrafish (Danio rerio), rescuing 80% of embryos, while in combination with tobramycin or gentamicin survival rate increased to 100%. The treatment of P. aeruginosa PAO1 biofilms on infected zebrafish tail wounds with 50 mu g mL(-1) YtnP-ZP1 and 2 x MIC tobramycin led to infection clearing in 2 days. The extensive toxicity studies proved YtnP-ZP1 was non-toxic to human cells and zebrafish. In conclusion, novel YtnP-ZP1 lactonase with its effective anti-virulence activity could be used to increase the efficacy of clinically approved antibiotics in clearing both systemic and biofilm-associated P. aeruginosa infections.",
publisher = "Frontiers Media Sa, Lausanne",
journal = "Frontiers in Microbiology",
title = "Novel Quorum Quenching YtnP Lactonase From Bacillus paralicheniformis Reduces Pseudomonas aeruginosa Virulence and Increases Antibiotic Efficacy in vivo",
volume = "13",
doi = "10.3389/fmicb.2022.906312"
}
Đokić, L., Stanković, N., Galić, I., Morić, I., Radaković, N., Segan, S., Pavić, A.,& Šenerović, L.. (2022). Novel Quorum Quenching YtnP Lactonase From Bacillus paralicheniformis Reduces Pseudomonas aeruginosa Virulence and Increases Antibiotic Efficacy in vivo. in Frontiers in Microbiology
Frontiers Media Sa, Lausanne., 13.
https://doi.org/10.3389/fmicb.2022.906312
Đokić L, Stanković N, Galić I, Morić I, Radaković N, Segan S, Pavić A, Šenerović L. Novel Quorum Quenching YtnP Lactonase From Bacillus paralicheniformis Reduces Pseudomonas aeruginosa Virulence and Increases Antibiotic Efficacy in vivo. in Frontiers in Microbiology. 2022;13.
doi:10.3389/fmicb.2022.906312 .
Đokić, Lidija, Stanković, Nada, Galić, Ivana, Morić, Ivana, Radaković, Nataša, Segan, Sandra, Pavić, Aleksandar, Šenerović, Lidija, "Novel Quorum Quenching YtnP Lactonase From Bacillus paralicheniformis Reduces Pseudomonas aeruginosa Virulence and Increases Antibiotic Efficacy in vivo" in Frontiers in Microbiology, 13 (2022),
https://doi.org/10.3389/fmicb.2022.906312 . .
3
13
12

Unraveling the anti-virulence potential and antifungal efficacy of 5-aminotetrazoles using the zebrafish model of disseminated candidiasis

Radaković, Nataša; Nikolić, Andrea; Terzić-Jovanović, Nataša; Stojković, Pavle; Stanković, Nada; Solaja, Bogdan; Opsenica, Igor; Pavić, Aleksandar

(Elsevier France-Editions Scientifiques Medicales Elsevier, Issy-Les-Moulineaux, 2022)

TY  - JOUR
AU  - Radaković, Nataša
AU  - Nikolić, Andrea
AU  - Terzić-Jovanović, Nataša
AU  - Stojković, Pavle
AU  - Stanković, Nada
AU  - Solaja, Bogdan
AU  - Opsenica, Igor
AU  - Pavić, Aleksandar
PY  - 2022
UR  - https://imagine.imgge.bg.ac.rs/handle/123456789/1593
AB  - Candida albicans remains the main causal agent of candidiasis, the most common fungal infection with disturbingly high mortality rates worldwide. The limited diversity and efficacy of clinical antifungal drugs, exacerbated by emerging drug resistance, have resulted in the failure of current antifungal therapies. This imposes an urgent demand for the development of innovative strategies for effective eradication of candidal infections. While the existing clinical drugs display fungicidal or fungistatic activity, the strategy specifically targeting C. albicans filamentation, as the most important virulence trait, represents an attractive approach for overcoming the drawbacks related to clinical antifungals. The results acquired in this study revealed the significant potential of 5-aminotetrazoles as a new class of effective and safe anti-virulence agents. Moreover, these novel agents were active when applied both alone and in combination with clinically approved polyenes. Complete prevention of C. albicans morphogenetic yeast-to-hyphae transition was achieved at doses as low as 1.3 mM under conditions mimicking various filamentation-responsive stimuli in the human body, while no cardio-or hepatotoxicity was observed at doses as high as 200 mM. The treatment of C. albicans-infected zebrafish embryos with nystatin alone had low efficacy, while the combination of nystatin and selected 5aminotetrazoles prevented fungal filamentation, successfully eliminating the infection and rescuing the infected embryos from lethal disseminated candidiasis. In addition, the most potent anti-virulence 5aminotetrazole prevented C. albicans in developing the resistance to nystatin when applied in combination, keeping the fungus sensitive to the antifungal drug.
PB  - Elsevier France-Editions Scientifiques Medicales Elsevier, Issy-Les-Moulineaux
T2  - European Journal of Medicinal Chemistry
T1  - Unraveling the anti-virulence potential and antifungal efficacy of 5-aminotetrazoles using the zebrafish model of disseminated candidiasis
VL  - 230
DO  - 10.1016/j.ejmech.2022.114137
ER  - 
@article{
author = "Radaković, Nataša and Nikolić, Andrea and Terzić-Jovanović, Nataša and Stojković, Pavle and Stanković, Nada and Solaja, Bogdan and Opsenica, Igor and Pavić, Aleksandar",
year = "2022",
abstract = "Candida albicans remains the main causal agent of candidiasis, the most common fungal infection with disturbingly high mortality rates worldwide. The limited diversity and efficacy of clinical antifungal drugs, exacerbated by emerging drug resistance, have resulted in the failure of current antifungal therapies. This imposes an urgent demand for the development of innovative strategies for effective eradication of candidal infections. While the existing clinical drugs display fungicidal or fungistatic activity, the strategy specifically targeting C. albicans filamentation, as the most important virulence trait, represents an attractive approach for overcoming the drawbacks related to clinical antifungals. The results acquired in this study revealed the significant potential of 5-aminotetrazoles as a new class of effective and safe anti-virulence agents. Moreover, these novel agents were active when applied both alone and in combination with clinically approved polyenes. Complete prevention of C. albicans morphogenetic yeast-to-hyphae transition was achieved at doses as low as 1.3 mM under conditions mimicking various filamentation-responsive stimuli in the human body, while no cardio-or hepatotoxicity was observed at doses as high as 200 mM. The treatment of C. albicans-infected zebrafish embryos with nystatin alone had low efficacy, while the combination of nystatin and selected 5aminotetrazoles prevented fungal filamentation, successfully eliminating the infection and rescuing the infected embryos from lethal disseminated candidiasis. In addition, the most potent anti-virulence 5aminotetrazole prevented C. albicans in developing the resistance to nystatin when applied in combination, keeping the fungus sensitive to the antifungal drug.",
publisher = "Elsevier France-Editions Scientifiques Medicales Elsevier, Issy-Les-Moulineaux",
journal = "European Journal of Medicinal Chemistry",
title = "Unraveling the anti-virulence potential and antifungal efficacy of 5-aminotetrazoles using the zebrafish model of disseminated candidiasis",
volume = "230",
doi = "10.1016/j.ejmech.2022.114137"
}
Radaković, N., Nikolić, A., Terzić-Jovanović, N., Stojković, P., Stanković, N., Solaja, B., Opsenica, I.,& Pavić, A.. (2022). Unraveling the anti-virulence potential and antifungal efficacy of 5-aminotetrazoles using the zebrafish model of disseminated candidiasis. in European Journal of Medicinal Chemistry
Elsevier France-Editions Scientifiques Medicales Elsevier, Issy-Les-Moulineaux., 230.
https://doi.org/10.1016/j.ejmech.2022.114137
Radaković N, Nikolić A, Terzić-Jovanović N, Stojković P, Stanković N, Solaja B, Opsenica I, Pavić A. Unraveling the anti-virulence potential and antifungal efficacy of 5-aminotetrazoles using the zebrafish model of disseminated candidiasis. in European Journal of Medicinal Chemistry. 2022;230.
doi:10.1016/j.ejmech.2022.114137 .
Radaković, Nataša, Nikolić, Andrea, Terzić-Jovanović, Nataša, Stojković, Pavle, Stanković, Nada, Solaja, Bogdan, Opsenica, Igor, Pavić, Aleksandar, "Unraveling the anti-virulence potential and antifungal efficacy of 5-aminotetrazoles using the zebrafish model of disseminated candidiasis" in European Journal of Medicinal Chemistry, 230 (2022),
https://doi.org/10.1016/j.ejmech.2022.114137 . .
2
4
4

Combatting AMR: A molecular approach to the discovery of potent and non-toxic rhenium complexes active against C. albicans-MRSA co-infection

Sovari, Sara Nasiri; Radaković, Nataša; Roch, Paul; Crochet, Aurelien; Pavić, Aleksandar; Zobi, Fabio

(Elsevier France-Editions Scientifiques Medicales Elsevier, Issy-Les-Moulineaux, 2021)

TY  - JOUR
AU  - Sovari, Sara Nasiri
AU  - Radaković, Nataša
AU  - Roch, Paul
AU  - Crochet, Aurelien
AU  - Pavić, Aleksandar
AU  - Zobi, Fabio
PY  - 2021
UR  - https://imagine.imgge.bg.ac.rs/handle/123456789/1477
AB  - Antimicrobial resistance (AMR) is a major emerging threat to public health, causing serious issues in the successful prevention and treatment of persistent diseases. While the problem escalates, lack of financial incentive has lead major pharmaceutical companies to interrupt their antibiotic drug discovery programs. The World Health Organisation (WHO) has called for novel solutions outside the traditional development pathway, with emphasis on new classes of active compounds with non-classical mechanisms of action. Metal complexes are an untapped source of antibiotic potential owing to unique modes of action and a wider range of three-dimensional geometries as compared to purely organic compounds. In this study, we present the antimicrobial and antifungal efficacy of a family of rhenium tricarbonyl diimine complexes with varying ligands, charge and lipophilicity. Our study allowed the identification of potent and non-toxic complexes active in vivo against S. aureus infections at MIC doses as low as 300 ng/mL, as well as against C. albicans-MRSA mixed co-infection. The compounds are capable of suppressing the C. albicans morphogenetic yeast-to-hyphal transition, eradicating fungal-S. aureus co-infection, while showing no sign of cardio-, hepato-, hematotoxiciy or teratogenicity.
PB  - Elsevier France-Editions Scientifiques Medicales Elsevier, Issy-Les-Moulineaux
T2  - European Journal of Medicinal Chemistry
T1  - Combatting AMR: A molecular approach to the discovery of potent and non-toxic rhenium complexes active against C. albicans-MRSA co-infection
VL  - 226
DO  - 10.1016/j.ejmech.2021.113858
ER  - 
@article{
author = "Sovari, Sara Nasiri and Radaković, Nataša and Roch, Paul and Crochet, Aurelien and Pavić, Aleksandar and Zobi, Fabio",
year = "2021",
abstract = "Antimicrobial resistance (AMR) is a major emerging threat to public health, causing serious issues in the successful prevention and treatment of persistent diseases. While the problem escalates, lack of financial incentive has lead major pharmaceutical companies to interrupt their antibiotic drug discovery programs. The World Health Organisation (WHO) has called for novel solutions outside the traditional development pathway, with emphasis on new classes of active compounds with non-classical mechanisms of action. Metal complexes are an untapped source of antibiotic potential owing to unique modes of action and a wider range of three-dimensional geometries as compared to purely organic compounds. In this study, we present the antimicrobial and antifungal efficacy of a family of rhenium tricarbonyl diimine complexes with varying ligands, charge and lipophilicity. Our study allowed the identification of potent and non-toxic complexes active in vivo against S. aureus infections at MIC doses as low as 300 ng/mL, as well as against C. albicans-MRSA mixed co-infection. The compounds are capable of suppressing the C. albicans morphogenetic yeast-to-hyphal transition, eradicating fungal-S. aureus co-infection, while showing no sign of cardio-, hepato-, hematotoxiciy or teratogenicity.",
publisher = "Elsevier France-Editions Scientifiques Medicales Elsevier, Issy-Les-Moulineaux",
journal = "European Journal of Medicinal Chemistry",
title = "Combatting AMR: A molecular approach to the discovery of potent and non-toxic rhenium complexes active against C. albicans-MRSA co-infection",
volume = "226",
doi = "10.1016/j.ejmech.2021.113858"
}
Sovari, S. N., Radaković, N., Roch, P., Crochet, A., Pavić, A.,& Zobi, F.. (2021). Combatting AMR: A molecular approach to the discovery of potent and non-toxic rhenium complexes active against C. albicans-MRSA co-infection. in European Journal of Medicinal Chemistry
Elsevier France-Editions Scientifiques Medicales Elsevier, Issy-Les-Moulineaux., 226.
https://doi.org/10.1016/j.ejmech.2021.113858
Sovari SN, Radaković N, Roch P, Crochet A, Pavić A, Zobi F. Combatting AMR: A molecular approach to the discovery of potent and non-toxic rhenium complexes active against C. albicans-MRSA co-infection. in European Journal of Medicinal Chemistry. 2021;226.
doi:10.1016/j.ejmech.2021.113858 .
Sovari, Sara Nasiri, Radaković, Nataša, Roch, Paul, Crochet, Aurelien, Pavić, Aleksandar, Zobi, Fabio, "Combatting AMR: A molecular approach to the discovery of potent and non-toxic rhenium complexes active against C. albicans-MRSA co-infection" in European Journal of Medicinal Chemistry, 226 (2021),
https://doi.org/10.1016/j.ejmech.2021.113858 . .
3
30
1
24

Neovascularization Effects of Carbon Monoxide Releasing Drugs Chemisorbed on Coscinodiscus Diatoms Carriers Characterized by Spectromicroscopy Imaging

Delasoie, Joachim; Radaković, Nataša; Pavić, Aleksandar; Zobi, Fabio

(MDPI, Basel, 2020)

TY  - JOUR
AU  - Delasoie, Joachim
AU  - Radaković, Nataša
AU  - Pavić, Aleksandar
AU  - Zobi, Fabio
PY  - 2020
UR  - https://imagine.imgge.bg.ac.rs/handle/123456789/1335
AB  - Silica microparticles made of diatomaceous earth have become particularly attractive materials for designing drug delivery systems. In order to investigate the use of natural diatoms as drug scaffolds for carbon monoxide releasing molecules (CORMs), we evaluated the chemisorption of the cis-[Re(CO)(2)Br-4](2-) complex (ReCORM-2) and its vitamin B-12 derivative (B-12-ReCORM-2) on Coscinodiscus frustules by 3D FT-IR spectroscopic imaging, and the drugs' neovascularization effects in vivo in the zebrafish (Danio rerio) model. By mapping the symmetric Re-C equivalent to O upsilon(CO) stretching vibration of the CORMs in the 2000 cm(-1) region, we found that the drugs are mostly localized at the girdle band of the diatom frustule. Both ReCORM-2 and B-12-ReCORM-2 retain their CO-releasing ability when chemisorbed on the diatoms. When applied in vivo at doses  gt = 25 mu M, the molecules markedly reduced intersegmental and subintestinal vessels development in zebrafish, revealing high anti-angiogenic potential. In addition, diatom frustules did not provoke any toxic in vivo response in the zebrafish embryos, including inflammation. Overall, our results indicate that: (1) CORMs chemisorbed on diatom frustules retain their CO-releasing abilities; (2) both CO-releasing molecules show a concentration-dependent effect on the neovascularization in developing zebrafish; (3) silicate frustules are not toxic and could be used as CORMs drug carriers.
PB  - MDPI, Basel
T2  - Applied Sciences-Basel
T1  - Neovascularization Effects of Carbon Monoxide Releasing Drugs Chemisorbed on Coscinodiscus Diatoms Carriers Characterized by Spectromicroscopy Imaging
IS  - 20
VL  - 10
DO  - 10.3390/app10207380
ER  - 
@article{
author = "Delasoie, Joachim and Radaković, Nataša and Pavić, Aleksandar and Zobi, Fabio",
year = "2020",
abstract = "Silica microparticles made of diatomaceous earth have become particularly attractive materials for designing drug delivery systems. In order to investigate the use of natural diatoms as drug scaffolds for carbon monoxide releasing molecules (CORMs), we evaluated the chemisorption of the cis-[Re(CO)(2)Br-4](2-) complex (ReCORM-2) and its vitamin B-12 derivative (B-12-ReCORM-2) on Coscinodiscus frustules by 3D FT-IR spectroscopic imaging, and the drugs' neovascularization effects in vivo in the zebrafish (Danio rerio) model. By mapping the symmetric Re-C equivalent to O upsilon(CO) stretching vibration of the CORMs in the 2000 cm(-1) region, we found that the drugs are mostly localized at the girdle band of the diatom frustule. Both ReCORM-2 and B-12-ReCORM-2 retain their CO-releasing ability when chemisorbed on the diatoms. When applied in vivo at doses  gt = 25 mu M, the molecules markedly reduced intersegmental and subintestinal vessels development in zebrafish, revealing high anti-angiogenic potential. In addition, diatom frustules did not provoke any toxic in vivo response in the zebrafish embryos, including inflammation. Overall, our results indicate that: (1) CORMs chemisorbed on diatom frustules retain their CO-releasing abilities; (2) both CO-releasing molecules show a concentration-dependent effect on the neovascularization in developing zebrafish; (3) silicate frustules are not toxic and could be used as CORMs drug carriers.",
publisher = "MDPI, Basel",
journal = "Applied Sciences-Basel",
title = "Neovascularization Effects of Carbon Monoxide Releasing Drugs Chemisorbed on Coscinodiscus Diatoms Carriers Characterized by Spectromicroscopy Imaging",
number = "20",
volume = "10",
doi = "10.3390/app10207380"
}
Delasoie, J., Radaković, N., Pavić, A.,& Zobi, F.. (2020). Neovascularization Effects of Carbon Monoxide Releasing Drugs Chemisorbed on Coscinodiscus Diatoms Carriers Characterized by Spectromicroscopy Imaging. in Applied Sciences-Basel
MDPI, Basel., 10(20).
https://doi.org/10.3390/app10207380
Delasoie J, Radaković N, Pavić A, Zobi F. Neovascularization Effects of Carbon Monoxide Releasing Drugs Chemisorbed on Coscinodiscus Diatoms Carriers Characterized by Spectromicroscopy Imaging. in Applied Sciences-Basel. 2020;10(20).
doi:10.3390/app10207380 .
Delasoie, Joachim, Radaković, Nataša, Pavić, Aleksandar, Zobi, Fabio, "Neovascularization Effects of Carbon Monoxide Releasing Drugs Chemisorbed on Coscinodiscus Diatoms Carriers Characterized by Spectromicroscopy Imaging" in Applied Sciences-Basel, 10, no. 20 (2020),
https://doi.org/10.3390/app10207380 . .
6
6

Reaction of a 3-aryilidene-2-thiohydantoin derivative with polymeric trans-[CuCl2(DMSO)(2)](n) complex: unexpected isomerization to dinuclear cis-[{CuCl(DMSO)(2)}(mu-Cl)](2)

Stanić, Petar B.; Rodić, Marko, V; Soldatović, Tanja, V; Pavić, Aleksandar; Radaković, Nataša; Smit, Biljana M.; Živković, Marija D.

(Srpsko hemijsko društvo, Beograd, 2020)

TY  - JOUR
AU  - Stanić, Petar B.
AU  - Rodić, Marko, V
AU  - Soldatović, Tanja, V
AU  - Pavić, Aleksandar
AU  - Radaković, Nataša
AU  - Smit, Biljana M.
AU  - Živković, Marija D.
PY  - 2020
UR  - https://imagine.imgge.bg.ac.rs/handle/123456789/1317
AB  - The 3-arylidene-2-thiohydantoin derivative, 3-[(2-hydroxybenzylidene)amino]-2-thioxoimidazolidin-4-one, was synthesized in a two-step condensation reaction of 2-hydroxybenzaldehyde, thiosemicarbazide and ethyl chloroacetate. The ligand was structurally characterized by NMR and IR spectroscopy, as well as by elemental analysis. In the reaction of the well-known polymeric trans-[CuCl2(DMSO)(2)](n) complex with the polydentate thiohydantoin type ligand, instead of the corresponding copper thiohydantoin complex, unexpectedly, the dinuclear cis-[{CuCl(DMSO)(2)}(mu-Cl)](2) complex (1) was formed predominantly as the final stable product. The structure of the complex 1 was confirmed by single crystal X-ray diffraction analysis. The cis-complex is obtained through assisted isomerization of the trans-form, in which the thiohydantoin derivative has a crucial role.
PB  - Srpsko hemijsko društvo, Beograd
T2  - Journal of the Serbian Chemical Society
T1  - Reaction of a 3-aryilidene-2-thiohydantoin derivative with polymeric trans-[CuCl2(DMSO)(2)](n) complex: unexpected isomerization to dinuclear cis-[{CuCl(DMSO)(2)}(mu-Cl)](2)
EP  - 1603
IS  - 12
SP  - 1591
VL  - 85
DO  - 10.2298/JSC200917060S
ER  - 
@article{
author = "Stanić, Petar B. and Rodić, Marko, V and Soldatović, Tanja, V and Pavić, Aleksandar and Radaković, Nataša and Smit, Biljana M. and Živković, Marija D.",
year = "2020",
abstract = "The 3-arylidene-2-thiohydantoin derivative, 3-[(2-hydroxybenzylidene)amino]-2-thioxoimidazolidin-4-one, was synthesized in a two-step condensation reaction of 2-hydroxybenzaldehyde, thiosemicarbazide and ethyl chloroacetate. The ligand was structurally characterized by NMR and IR spectroscopy, as well as by elemental analysis. In the reaction of the well-known polymeric trans-[CuCl2(DMSO)(2)](n) complex with the polydentate thiohydantoin type ligand, instead of the corresponding copper thiohydantoin complex, unexpectedly, the dinuclear cis-[{CuCl(DMSO)(2)}(mu-Cl)](2) complex (1) was formed predominantly as the final stable product. The structure of the complex 1 was confirmed by single crystal X-ray diffraction analysis. The cis-complex is obtained through assisted isomerization of the trans-form, in which the thiohydantoin derivative has a crucial role.",
publisher = "Srpsko hemijsko društvo, Beograd",
journal = "Journal of the Serbian Chemical Society",
title = "Reaction of a 3-aryilidene-2-thiohydantoin derivative with polymeric trans-[CuCl2(DMSO)(2)](n) complex: unexpected isomerization to dinuclear cis-[{CuCl(DMSO)(2)}(mu-Cl)](2)",
pages = "1603-1591",
number = "12",
volume = "85",
doi = "10.2298/JSC200917060S"
}
Stanić, P. B., Rodić, M. V., Soldatović, T. V., Pavić, A., Radaković, N., Smit, B. M.,& Živković, M. D.. (2020). Reaction of a 3-aryilidene-2-thiohydantoin derivative with polymeric trans-[CuCl2(DMSO)(2)](n) complex: unexpected isomerization to dinuclear cis-[{CuCl(DMSO)(2)}(mu-Cl)](2). in Journal of the Serbian Chemical Society
Srpsko hemijsko društvo, Beograd., 85(12), 1591-1603.
https://doi.org/10.2298/JSC200917060S
Stanić PB, Rodić MV, Soldatović TV, Pavić A, Radaković N, Smit BM, Živković MD. Reaction of a 3-aryilidene-2-thiohydantoin derivative with polymeric trans-[CuCl2(DMSO)(2)](n) complex: unexpected isomerization to dinuclear cis-[{CuCl(DMSO)(2)}(mu-Cl)](2). in Journal of the Serbian Chemical Society. 2020;85(12):1591-1603.
doi:10.2298/JSC200917060S .
Stanić, Petar B., Rodić, Marko, V, Soldatović, Tanja, V, Pavić, Aleksandar, Radaković, Nataša, Smit, Biljana M., Živković, Marija D., "Reaction of a 3-aryilidene-2-thiohydantoin derivative with polymeric trans-[CuCl2(DMSO)(2)](n) complex: unexpected isomerization to dinuclear cis-[{CuCl(DMSO)(2)}(mu-Cl)](2)" in Journal of the Serbian Chemical Society, 85, no. 12 (2020):1591-1603,
https://doi.org/10.2298/JSC200917060S . .
2
3