TY  - JOUR
AU  - Petrović, Isidora
AU  - Milivojević, Milena
AU  - Arsenijević, Ana
AU  - Lazić, Andrijana
AU  - Kovačević Grujičić, Nataša
AU  - Schwirtlich, Marija
AU  - Popović, Jelena
AU  - Stevanović, Milena
PY  - 2021
UR  - https://imagine.imgge.bg.ac.rs/handle/123456789/1505
AB  - Genetic and molecular heterogeneity, together with intrinsic and acquired resistance to therapy, represent the major obstacles to the successful treatment of different types of breast carcinoma. Increasing evidence demonstrates that SOX transcription factors in breast carcinomas could act both as oncogenes and tumor suppressors and have been associated with tumor stage and grade, poor prognosis, and therapy resistance. Both SOX2 and SOX18 overexpression has been correlated with poor prognosis in breast carcinomas, and these genes are recognized as potential antitumor targets. Our aim was to evaluate the effect of retinoic acid (RA), a well-known cyto-differentiating agent, on breast carcinoma cells in vitro and to investigate the potential of RA treatment to modify the expression of SOX2 and SOX18 genes. By applying various experimental approaches, we evaluated the effect of RA on basic cellular processes in SK-BR-3 and MCF7 breast carcinoma cell lines. We have shown that RA inhibits cell growth, reduces the number of Ki-67 positive cells, and causes cell-cycle arrest. RA effect was more prominent in SK-BR-3 cell line that lacks SOX2 expression, including a higher decrease in cell viability, reduction in colony formation, and significant remodeling of cellular structure. We have shown that RA treatment led to the downregulation of SOX2 expression in MCF7 cells and to the reduction of SOX18 expression in both cell lines. By functional analysis, we showed that the anti-proliferative effect of RA in both cell lines was not based on the activity of stemness marker SOX2, pointing to a SOX2-independent mechanism of action. The ability of RA to reduce SOX2/SOX18 expression raises the possibility that these genes can be used as biomarkers to distinguish RA-responders from non-responders. Together, our study shows that the response of breast carcinoma cell lines to RA treatment may vary, highlighting that the development of RA-based therapy should consider differences in breast carcinoma subtypes.
PB  - Tech Science Press, Henderson
T2  - Biocell
T1  - Retinoic acid affects basic cellular processes and SOX2 and SOX18 expression in breast carcinoma cells
EP  - 1367
IS  - 5
SP  - 1355
VL  - 45
DO  - 10.32604/biocell.2021.015817
ER  - 

@article{
author = "Petrović, Isidora and Milivojević, Milena and Arsenijević, Ana and Lazić, Andrijana and Kovačević Grujičić, Nataša and Schwirtlich, Marija and Popović, Jelena and Stevanović, Milena",
year = "2021",
abstract = "Genetic and molecular heterogeneity, together with intrinsic and acquired resistance to therapy, represent the major obstacles to the successful treatment of different types of breast carcinoma. Increasing evidence demonstrates that SOX transcription factors in breast carcinomas could act both as oncogenes and tumor suppressors and have been associated with tumor stage and grade, poor prognosis, and therapy resistance. Both SOX2 and SOX18 overexpression has been correlated with poor prognosis in breast carcinomas, and these genes are recognized as potential antitumor targets. Our aim was to evaluate the effect of retinoic acid (RA), a well-known cyto-differentiating agent, on breast carcinoma cells in vitro and to investigate the potential of RA treatment to modify the expression of SOX2 and SOX18 genes. By applying various experimental approaches, we evaluated the effect of RA on basic cellular processes in SK-BR-3 and MCF7 breast carcinoma cell lines. We have shown that RA inhibits cell growth, reduces the number of Ki-67 positive cells, and causes cell-cycle arrest. RA effect was more prominent in SK-BR-3 cell line that lacks SOX2 expression, including a higher decrease in cell viability, reduction in colony formation, and significant remodeling of cellular structure. We have shown that RA treatment led to the downregulation of SOX2 expression in MCF7 cells and to the reduction of SOX18 expression in both cell lines. By functional analysis, we showed that the anti-proliferative effect of RA in both cell lines was not based on the activity of stemness marker SOX2, pointing to a SOX2-independent mechanism of action. The ability of RA to reduce SOX2/SOX18 expression raises the possibility that these genes can be used as biomarkers to distinguish RA-responders from non-responders. Together, our study shows that the response of breast carcinoma cell lines to RA treatment may vary, highlighting that the development of RA-based therapy should consider differences in breast carcinoma subtypes.",
publisher = "Tech Science Press, Henderson",
journal = "Biocell",
title = "Retinoic acid affects basic cellular processes and SOX2 and SOX18 expression in breast carcinoma cells",
pages = "1367-1355",
number = "5",
volume = "45",
doi = "10.32604/biocell.2021.015817"
}

Petrović, I., Milivojević, M., Arsenijević, A., Lazić, A., Kovačević Grujičić, N., Schwirtlich, M., Popović, J.,& Stevanović, M.. (2021). Retinoic acid affects basic cellular processes and SOX2 and SOX18 expression in breast carcinoma cells. in Biocell
Tech Science Press, Henderson., 45(5), 1355-1367.
https://doi.org/10.32604/biocell.2021.015817

Petrović I, Milivojević M, Arsenijević A, Lazić A, Kovačević Grujičić N, Schwirtlich M, Popović J, Stevanović M. Retinoic acid affects basic cellular processes and SOX2 and SOX18 expression in breast carcinoma cells. in Biocell. 2021;45(5):1355-1367.
doi:10.32604/biocell.2021.015817 .

Petrović, Isidora, Milivojević, Milena, Arsenijević, Ana, Lazić, Andrijana, Kovačević Grujičić, Nataša, Schwirtlich, Marija, Popović, Jelena, Stevanović, Milena, "Retinoic acid affects basic cellular processes and SOX2 and SOX18 expression in breast carcinoma cells" in Biocell, 45, no. 5 (2021):1355-1367,
https://doi.org/10.32604/biocell.2021.015817 . .

TY  - JOUR
AU  - Tomić, Sergej
AU  - Đokić, Jelena
AU  - Stevanović, Dejan
AU  - Ilić, Nataša
AU  - Gruden-Movsesijan, Alisa
AU  - Dinić, Miroslav
AU  - Radojević, Dušan
AU  - Bekić, Marina
AU  - Mitrović, Nebojša
AU  - Tomasević, Ratko
AU  - Mikić, Dragan
AU  - Stojanović, Dragos
AU  - Čolić, Miodrag
PY  - 2021
UR  - https://imagine.imgge.bg.ac.rs/handle/123456789/1446
AB  - Widespread coronavirus disease (COVID)-19 is causing pneumonia, respiratory and multiorgan failure in susceptible individuals. Dysregulated immune response marks severe COVID-19, but the immunological mechanisms driving COVID-19 pathogenesis are still largely unknown, which is hampering the development of efficient treatments. Here we analyzed similar to 140 parameters of cellular and humoral immune response in peripheral blood of 41 COVID-19 patients and 16 age/gender-matched healthy donors by flow-cytometry, quantitative PCR, western blot and ELISA, followed by integrated correlation analyses with similar to 30 common clinical and laboratory parameters. We found that lymphocytopenia in severe COVID-19 patients (n=20) strongly affects T, NK and NKT cells, but not B cells and antibody production. Unlike increased activation of ICOS-1+ CD4+ T cells in mild COVID-19 patients (n=21), T cells in severe patients showed impaired activation, low IFN-gamma production and high functional exhaustion, which correlated with significantly down-regulated HLA-DR expression in monocytes, dendritic cells and B cells. The latter phenomenon was followed by lower interferon responsive factor (IRF)-8 and autophagy-related genes expressions, and the expansion of myeloid derived suppressor cells (MDSC). Intriguingly, PD-L1-, ILT-3-, and IDO-1-expressing monocytic MDSC were the dominant producers of IL-6 and IL-10, which correlated with the increased inflammation and accumulation of regulatory B and T cell subsets in severe COVID-19 patients. Overall, down-regulated IRF-8 and autophagy-related genes expression, and the expansion of MDSC subsets could play critical roles in dysregulating T cell response in COVID-19, which could have large implications in diagnostics and design of novel therapeutics for this disease.
PB  - Frontiers Media Sa, Lausanne
T2  - Frontiers in Immunology
T1  - Reduced Expression of Autophagy Markers and Expansion of Myeloid-Derived Suppressor Cells Correlate With Poor T Cell Response in Severe COVID-19 Patients
VL  - 12
DO  - 10.3389/fimmu.2021.614599
ER  - 

@article{
author = "Tomić, Sergej and Đokić, Jelena and Stevanović, Dejan and Ilić, Nataša and Gruden-Movsesijan, Alisa and Dinić, Miroslav and Radojević, Dušan and Bekić, Marina and Mitrović, Nebojša and Tomasević, Ratko and Mikić, Dragan and Stojanović, Dragos and Čolić, Miodrag",
year = "2021",
abstract = "Widespread coronavirus disease (COVID)-19 is causing pneumonia, respiratory and multiorgan failure in susceptible individuals. Dysregulated immune response marks severe COVID-19, but the immunological mechanisms driving COVID-19 pathogenesis are still largely unknown, which is hampering the development of efficient treatments. Here we analyzed similar to 140 parameters of cellular and humoral immune response in peripheral blood of 41 COVID-19 patients and 16 age/gender-matched healthy donors by flow-cytometry, quantitative PCR, western blot and ELISA, followed by integrated correlation analyses with similar to 30 common clinical and laboratory parameters. We found that lymphocytopenia in severe COVID-19 patients (n=20) strongly affects T, NK and NKT cells, but not B cells and antibody production. Unlike increased activation of ICOS-1+ CD4+ T cells in mild COVID-19 patients (n=21), T cells in severe patients showed impaired activation, low IFN-gamma production and high functional exhaustion, which correlated with significantly down-regulated HLA-DR expression in monocytes, dendritic cells and B cells. The latter phenomenon was followed by lower interferon responsive factor (IRF)-8 and autophagy-related genes expressions, and the expansion of myeloid derived suppressor cells (MDSC). Intriguingly, PD-L1-, ILT-3-, and IDO-1-expressing monocytic MDSC were the dominant producers of IL-6 and IL-10, which correlated with the increased inflammation and accumulation of regulatory B and T cell subsets in severe COVID-19 patients. Overall, down-regulated IRF-8 and autophagy-related genes expression, and the expansion of MDSC subsets could play critical roles in dysregulating T cell response in COVID-19, which could have large implications in diagnostics and design of novel therapeutics for this disease.",
publisher = "Frontiers Media Sa, Lausanne",
journal = "Frontiers in Immunology",
title = "Reduced Expression of Autophagy Markers and Expansion of Myeloid-Derived Suppressor Cells Correlate With Poor T Cell Response in Severe COVID-19 Patients",
volume = "12",
doi = "10.3389/fimmu.2021.614599"
}

Tomić, S., Đokić, J., Stevanović, D., Ilić, N., Gruden-Movsesijan, A., Dinić, M., Radojević, D., Bekić, M., Mitrović, N., Tomasević, R., Mikić, D., Stojanović, D.,& Čolić, M.. (2021). Reduced Expression of Autophagy Markers and Expansion of Myeloid-Derived Suppressor Cells Correlate With Poor T Cell Response in Severe COVID-19 Patients. in Frontiers in Immunology
Frontiers Media Sa, Lausanne., 12.
https://doi.org/10.3389/fimmu.2021.614599

Tomić S, Đokić J, Stevanović D, Ilić N, Gruden-Movsesijan A, Dinić M, Radojević D, Bekić M, Mitrović N, Tomasević R, Mikić D, Stojanović D, Čolić M. Reduced Expression of Autophagy Markers and Expansion of Myeloid-Derived Suppressor Cells Correlate With Poor T Cell Response in Severe COVID-19 Patients. in Frontiers in Immunology. 2021;12.
doi:10.3389/fimmu.2021.614599 .

Tomić, Sergej, Đokić, Jelena, Stevanović, Dejan, Ilić, Nataša, Gruden-Movsesijan, Alisa, Dinić, Miroslav, Radojević, Dušan, Bekić, Marina, Mitrović, Nebojša, Tomasević, Ratko, Mikić, Dragan, Stojanović, Dragos, Čolić, Miodrag, "Reduced Expression of Autophagy Markers and Expansion of Myeloid-Derived Suppressor Cells Correlate With Poor T Cell Response in Severe COVID-19 Patients" in Frontiers in Immunology, 12 (2021),
https://doi.org/10.3389/fimmu.2021.614599 . .

TY  - JOUR
AU  - Selaković, Zivota
AU  - Tran, Julie P.
AU  - Kota, Krishna P.
AU  - Lazić, Marija
AU  - Retterer, Cary
AU  - Besh, Robert
AU  - Panchal, Rekha G.
AU  - Soloveva, Veronica
AU  - Sean, Vantongreen A.
AU  - Jay, Wells B.
AU  - Pavić, Aleksandar
AU  - Verbić, Tatjana
AU  - Vasiljević, Branka
AU  - Kuehl, Kathleen
AU  - Duplantier, Allen J.
AU  - Bavari, Sina
AU  - Mudhasani, Rajini
AU  - Solaja, Bogdan A.
PY  - 2019
UR  - https://imagine.imgge.bg.ac.rs/handle/123456789/1293
AB  - Ebola virus (EBOV) causes a deadly hemorrhagic fever in humans and non-human primates. There is currently no FDA-approved vaccine or medication to counter this disease. Here, we report on the design, synthesis and anti-viral activities of two classes of compounds which show high potency against EBOV in both in vitro cell culture assays and in vivo mouse models Ebola viral disease. These compounds incorporate the structural features of cationic amphiphilic drugs (CAD), i.e they possess both a hydrophobic domain and a hydrophilic domain consisting of an ionizable amine functional group. These structural features enable easily diffusion into cells but once inside an acidic compartment their amine groups became protonated, ionized and remain trapped inside the acidic compartments such as late endosomes and lysosomes. These compounds, by virtue of their lysomotrophic functions, blocked EBOV entry. However, unlike other drugs containing a CAD moiety including chloroquine and amodiaquine, compounds reported in this study display faster kinetics of accumulation in the lysosomes, robust expansion of late endosome/lysosomes, relatively more potent suppression of lysosome fusion with other vesicular compartments and inhibition of cathepsins activities, all of which play a vital role in anti-EBOV activity. Furthermore, the diazachrysene 2 (ZSML08) that showed most potent activity against EBOV in in vitro cell culture assays also showed significant survival benefit with 100% protection in mouse models of Ebola virus disease, at a low dose of 10 mg/kg/day. Lastly, toxicity studies in vivo using zebrafish models suggest no developmental defects or toxicity associated with these compounds. Overall, these studies describe two new pharmacophores that by virtue of being potent lysosomotrophs, display potent anti-EBOV activities both in vitro and in vivo animal models of EBOV disease.
PB  - Elsevier France-Editions Scientifiques Medicales Elsevier, Issy-Les-Moulineaux
T2  - European Journal of Medicinal Chemistry
T1  - Second generation of diazachrysenes: Protection of Ebola virus infected mice and mechanism of action
EP  - 50
SP  - 32
VL  - 162
DO  - 10.1016/j.ejmech.2018.10.061
ER  - 

@article{
author = "Selaković, Zivota and Tran, Julie P. and Kota, Krishna P. and Lazić, Marija and Retterer, Cary and Besh, Robert and Panchal, Rekha G. and Soloveva, Veronica and Sean, Vantongreen A. and Jay, Wells B. and Pavić, Aleksandar and Verbić, Tatjana and Vasiljević, Branka and Kuehl, Kathleen and Duplantier, Allen J. and Bavari, Sina and Mudhasani, Rajini and Solaja, Bogdan A.",
year = "2019",
abstract = "Ebola virus (EBOV) causes a deadly hemorrhagic fever in humans and non-human primates. There is currently no FDA-approved vaccine or medication to counter this disease. Here, we report on the design, synthesis and anti-viral activities of two classes of compounds which show high potency against EBOV in both in vitro cell culture assays and in vivo mouse models Ebola viral disease. These compounds incorporate the structural features of cationic amphiphilic drugs (CAD), i.e they possess both a hydrophobic domain and a hydrophilic domain consisting of an ionizable amine functional group. These structural features enable easily diffusion into cells but once inside an acidic compartment their amine groups became protonated, ionized and remain trapped inside the acidic compartments such as late endosomes and lysosomes. These compounds, by virtue of their lysomotrophic functions, blocked EBOV entry. However, unlike other drugs containing a CAD moiety including chloroquine and amodiaquine, compounds reported in this study display faster kinetics of accumulation in the lysosomes, robust expansion of late endosome/lysosomes, relatively more potent suppression of lysosome fusion with other vesicular compartments and inhibition of cathepsins activities, all of which play a vital role in anti-EBOV activity. Furthermore, the diazachrysene 2 (ZSML08) that showed most potent activity against EBOV in in vitro cell culture assays also showed significant survival benefit with 100% protection in mouse models of Ebola virus disease, at a low dose of 10 mg/kg/day. Lastly, toxicity studies in vivo using zebrafish models suggest no developmental defects or toxicity associated with these compounds. Overall, these studies describe two new pharmacophores that by virtue of being potent lysosomotrophs, display potent anti-EBOV activities both in vitro and in vivo animal models of EBOV disease.",
publisher = "Elsevier France-Editions Scientifiques Medicales Elsevier, Issy-Les-Moulineaux",
journal = "European Journal of Medicinal Chemistry",
title = "Second generation of diazachrysenes: Protection of Ebola virus infected mice and mechanism of action",
pages = "50-32",
volume = "162",
doi = "10.1016/j.ejmech.2018.10.061"
}

Selaković, Z., Tran, J. P., Kota, K. P., Lazić, M., Retterer, C., Besh, R., Panchal, R. G., Soloveva, V., Sean, V. A., Jay, W. B., Pavić, A., Verbić, T., Vasiljević, B., Kuehl, K., Duplantier, A. J., Bavari, S., Mudhasani, R.,& Solaja, B. A.. (2019). Second generation of diazachrysenes: Protection of Ebola virus infected mice and mechanism of action. in European Journal of Medicinal Chemistry
Elsevier France-Editions Scientifiques Medicales Elsevier, Issy-Les-Moulineaux., 162, 32-50.
https://doi.org/10.1016/j.ejmech.2018.10.061

Selaković Z, Tran JP, Kota KP, Lazić M, Retterer C, Besh R, Panchal RG, Soloveva V, Sean VA, Jay WB, Pavić A, Verbić T, Vasiljević B, Kuehl K, Duplantier AJ, Bavari S, Mudhasani R, Solaja BA. Second generation of diazachrysenes: Protection of Ebola virus infected mice and mechanism of action. in European Journal of Medicinal Chemistry. 2019;162:32-50.
doi:10.1016/j.ejmech.2018.10.061 .

Selaković, Zivota, Tran, Julie P., Kota, Krishna P., Lazić, Marija, Retterer, Cary, Besh, Robert, Panchal, Rekha G., Soloveva, Veronica, Sean, Vantongreen A., Jay, Wells B., Pavić, Aleksandar, Verbić, Tatjana, Vasiljević, Branka, Kuehl, Kathleen, Duplantier, Allen J., Bavari, Sina, Mudhasani, Rajini, Solaja, Bogdan A., "Second generation of diazachrysenes: Protection of Ebola virus infected mice and mechanism of action" in European Journal of Medicinal Chemistry, 162 (2019):32-50,
https://doi.org/10.1016/j.ejmech.2018.10.061 . .

TY  - JOUR
AU  - Videnović, Milica
AU  - Mojsin, Marija
AU  - Stevanović, Milena
AU  - Opsenica, Igor
AU  - Srdić-Rajić, Tatjana
AU  - Solaja, Bogdan
PY  - 2018
UR  - https://imagine.imgge.bg.ac.rs/handle/123456789/1148
AB  - A series of new benzothiazole-based carbamates and amides were synthesized and their antiproliferative activity was determined. Derivatives with profound activity were identified and further investigated for their possible mechanism of action. It was found that these compounds induce specific apoptosis, G2/M cell cycle arrest and decrease ROS level in MCF-7 human breast cancer cell line. Moreover, sub-micromolar antiproliferative activity of examined carbamates against NT2/D1 testicular embryonal carcinoma was shown. The most potent derivatives strongly inhibited NT2/D1 cell migration and invasiveness.
PB  - Elsevier France-Editions Scientifiques Medicales Elsevier, Issy-Les-Moulineaux
T2  - European Journal of Medicinal Chemistry
T1  - Benzothiazole carbamates and amides as antiproliferative species
EP  - 1114
SP  - 1096
VL  - 157
DO  - 10.1016/j.ejmech.2018.08.067
ER  - 

@article{
author = "Videnović, Milica and Mojsin, Marija and Stevanović, Milena and Opsenica, Igor and Srdić-Rajić, Tatjana and Solaja, Bogdan",
year = "2018",
abstract = "A series of new benzothiazole-based carbamates and amides were synthesized and their antiproliferative activity was determined. Derivatives with profound activity were identified and further investigated for their possible mechanism of action. It was found that these compounds induce specific apoptosis, G2/M cell cycle arrest and decrease ROS level in MCF-7 human breast cancer cell line. Moreover, sub-micromolar antiproliferative activity of examined carbamates against NT2/D1 testicular embryonal carcinoma was shown. The most potent derivatives strongly inhibited NT2/D1 cell migration and invasiveness.",
publisher = "Elsevier France-Editions Scientifiques Medicales Elsevier, Issy-Les-Moulineaux",
journal = "European Journal of Medicinal Chemistry",
title = "Benzothiazole carbamates and amides as antiproliferative species",
pages = "1114-1096",
volume = "157",
doi = "10.1016/j.ejmech.2018.08.067"
}

Videnović, M., Mojsin, M., Stevanović, M., Opsenica, I., Srdić-Rajić, T.,& Solaja, B.. (2018). Benzothiazole carbamates and amides as antiproliferative species. in European Journal of Medicinal Chemistry
Elsevier France-Editions Scientifiques Medicales Elsevier, Issy-Les-Moulineaux., 157, 1096-1114.
https://doi.org/10.1016/j.ejmech.2018.08.067

Videnović M, Mojsin M, Stevanović M, Opsenica I, Srdić-Rajić T, Solaja B. Benzothiazole carbamates and amides as antiproliferative species. in European Journal of Medicinal Chemistry. 2018;157:1096-1114.
doi:10.1016/j.ejmech.2018.08.067 .

Videnović, Milica, Mojsin, Marija, Stevanović, Milena, Opsenica, Igor, Srdić-Rajić, Tatjana, Solaja, Bogdan, "Benzothiazole carbamates and amides as antiproliferative species" in European Journal of Medicinal Chemistry, 157 (2018):1096-1114,
https://doi.org/10.1016/j.ejmech.2018.08.067 . .

TY  - JOUR
AU  - Ajdačić, Vladimir
AU  - Lazić, Jelena
AU  - Mojicević, Marija
AU  - Segan, Sandra
AU  - Nikodinović-Runić, Jasmina
AU  - Opsenica, Igor M.
PY  - 2017
UR  - https://imagine.imgge.bg.ac.rs/handle/123456789/1010
AB  - A series of novel guanylhydrazones were designed, synthesized and characterized. All the compounds were screened for their antibacterial and antifungal activity. Compounds 26 and 27 showed excellent antibacterial activities against Staphylococcus aureus ATCC 25923 and Micrococcus luteus ATCC 379 with minimal inhibitory concentrations of 4 ae g mL(-1), and good antifungal activity against Candida parapsilosis ATCC 22019. These results suggested that the selected guanylhydrazones could serve as promising leads for improved antimicrobial development.
PB  - Srpsko hemijsko društvo, Beograd
T2  - Journal of the Serbian Chemical Society
T1  - Antibacterial and antifungal properties of guanylhydrazones
EP  - 649
IS  - 6
SP  - 641
VL  - 82
DO  - 10.2298/JSC170213033A
ER  - 

@article{
author = "Ajdačić, Vladimir and Lazić, Jelena and Mojicević, Marija and Segan, Sandra and Nikodinović-Runić, Jasmina and Opsenica, Igor M.",
year = "2017",
abstract = "A series of novel guanylhydrazones were designed, synthesized and characterized. All the compounds were screened for their antibacterial and antifungal activity. Compounds 26 and 27 showed excellent antibacterial activities against Staphylococcus aureus ATCC 25923 and Micrococcus luteus ATCC 379 with minimal inhibitory concentrations of 4 ae g mL(-1), and good antifungal activity against Candida parapsilosis ATCC 22019. These results suggested that the selected guanylhydrazones could serve as promising leads for improved antimicrobial development.",
publisher = "Srpsko hemijsko društvo, Beograd",
journal = "Journal of the Serbian Chemical Society",
title = "Antibacterial and antifungal properties of guanylhydrazones",
pages = "649-641",
number = "6",
volume = "82",
doi = "10.2298/JSC170213033A"
}

Ajdačić, V., Lazić, J., Mojicević, M., Segan, S., Nikodinović-Runić, J.,& Opsenica, I. M.. (2017). Antibacterial and antifungal properties of guanylhydrazones. in Journal of the Serbian Chemical Society
Srpsko hemijsko društvo, Beograd., 82(6), 641-649.
https://doi.org/10.2298/JSC170213033A

Ajdačić V, Lazić J, Mojicević M, Segan S, Nikodinović-Runić J, Opsenica IM. Antibacterial and antifungal properties of guanylhydrazones. in Journal of the Serbian Chemical Society. 2017;82(6):641-649.
doi:10.2298/JSC170213033A .

Ajdačić, Vladimir, Lazić, Jelena, Mojicević, Marija, Segan, Sandra, Nikodinović-Runić, Jasmina, Opsenica, Igor M., "Antibacterial and antifungal properties of guanylhydrazones" in Journal of the Serbian Chemical Society, 82, no. 6 (2017):641-649,
https://doi.org/10.2298/JSC170213033A . .

TY  - JOUR
AU  - Ajdačić, Vladimir
AU  - Šenerović, Lidija
AU  - Vranić, Marija
AU  - Pekmezović, Marina
AU  - Arsić-Arsenijević, Valentina
AU  - Veselinović, Aleksandar
AU  - Veselinović, Jovana
AU  - Solaja, Bogdan A.
AU  - Nikodinović-Runić, Jasmina
AU  - Opsenica, Igor M.
PY  - 2016
UR  - https://imagine.imgge.bg.ac.rs/handle/123456789/991
AB  - A series of new thiophene-based guanylhydrazones (iminoguanidines) were synthesized in high yields using a straightforward two-step procedure. The antifungal activity of compounds was evaluated against a wide range of medicaly important fungal strains including yeasts, molds, and dermatophytes in comparison to clinically used drug voriconazole. Cytotoxic properties of compounds were also determined using human lung fibroblast cell line and hemolysis assay. All guanylhydrazones showed significant activity against broad spectrum of clinically important species of Candida spp., Aspergillus fumigatus, Fusarium oxysporum, Microsporum canis and Trichophyton mentagrophytes, which was in some cases comparable or better than activity of voriconazole. More importantly, compounds 10, 11, 13, 14, 18 and 21 exhibited excellent activity against voriconazole-resistant Candida albicans CA5 with very low minimal inhibitory concentration (MIC) values  lt 2 mu g mL(-1). Derivative 14, bearing bromine on the phenyl ring, was the most effective compound with MICs ranging from 0.25 to 6.25 g mL(-1). However, bis-guanylhydrazone 18 showed better selectivity in terms of therapeutic index values. In vivo embryotoxicity on zebrafish (Danio rerio) showed improved toxicity profile of 11, 14 and 18 in comparison to that of voriconazole. Most guanylhydrazones also inhibited C albicans yeast to hyphal transition, essential for its biofilm formation, while 11 and 18 were able to disperse preformed Candida biofilms. All guanylhydrazones showed the equal potential to interact with genomic DNA of C albicans in vitro, thus indicating a possible mechanism of their action, as well as possible mechanism of observed cytotoxic effects. Tested compounds did not have significant hemolytic effect and caused low liposome leakage, which excluded the cell membrane as a primary target. On the basis of computational docking experiments using both human and cytochrome P450 from Candida it was concluded that the most active guanylhydrazones had minimal structural prerequisites to interact with the cytochrome P450 14a-demethylase (CYP51). Promising guanylhydrazone derivatives also showed satisfactory pharmacokinetic profile based on molecular calculations.
PB  - Pergamon-Elsevier Science Ltd, Oxford
T2  - Bioorganic & Medicinal Chemistry
T1  - Synthesis and evaluation of thiophene-based guanylhydrazones (iminoguanidines) efficient against panel of voriconazole-resistant fungal isolates
EP  - 1291
IS  - 6
SP  - 1277
VL  - 24
DO  - 10.1016/j.bmc.2016.01.058
ER  - 

@article{
author = "Ajdačić, Vladimir and Šenerović, Lidija and Vranić, Marija and Pekmezović, Marina and Arsić-Arsenijević, Valentina and Veselinović, Aleksandar and Veselinović, Jovana and Solaja, Bogdan A. and Nikodinović-Runić, Jasmina and Opsenica, Igor M.",
year = "2016",
abstract = "A series of new thiophene-based guanylhydrazones (iminoguanidines) were synthesized in high yields using a straightforward two-step procedure. The antifungal activity of compounds was evaluated against a wide range of medicaly important fungal strains including yeasts, molds, and dermatophytes in comparison to clinically used drug voriconazole. Cytotoxic properties of compounds were also determined using human lung fibroblast cell line and hemolysis assay. All guanylhydrazones showed significant activity against broad spectrum of clinically important species of Candida spp., Aspergillus fumigatus, Fusarium oxysporum, Microsporum canis and Trichophyton mentagrophytes, which was in some cases comparable or better than activity of voriconazole. More importantly, compounds 10, 11, 13, 14, 18 and 21 exhibited excellent activity against voriconazole-resistant Candida albicans CA5 with very low minimal inhibitory concentration (MIC) values  lt 2 mu g mL(-1). Derivative 14, bearing bromine on the phenyl ring, was the most effective compound with MICs ranging from 0.25 to 6.25 g mL(-1). However, bis-guanylhydrazone 18 showed better selectivity in terms of therapeutic index values. In vivo embryotoxicity on zebrafish (Danio rerio) showed improved toxicity profile of 11, 14 and 18 in comparison to that of voriconazole. Most guanylhydrazones also inhibited C albicans yeast to hyphal transition, essential for its biofilm formation, while 11 and 18 were able to disperse preformed Candida biofilms. All guanylhydrazones showed the equal potential to interact with genomic DNA of C albicans in vitro, thus indicating a possible mechanism of their action, as well as possible mechanism of observed cytotoxic effects. Tested compounds did not have significant hemolytic effect and caused low liposome leakage, which excluded the cell membrane as a primary target. On the basis of computational docking experiments using both human and cytochrome P450 from Candida it was concluded that the most active guanylhydrazones had minimal structural prerequisites to interact with the cytochrome P450 14a-demethylase (CYP51). Promising guanylhydrazone derivatives also showed satisfactory pharmacokinetic profile based on molecular calculations.",
publisher = "Pergamon-Elsevier Science Ltd, Oxford",
journal = "Bioorganic & Medicinal Chemistry",
title = "Synthesis and evaluation of thiophene-based guanylhydrazones (iminoguanidines) efficient against panel of voriconazole-resistant fungal isolates",
pages = "1291-1277",
number = "6",
volume = "24",
doi = "10.1016/j.bmc.2016.01.058"
}

Ajdačić, V., Šenerović, L., Vranić, M., Pekmezović, M., Arsić-Arsenijević, V., Veselinović, A., Veselinović, J., Solaja, B. A., Nikodinović-Runić, J.,& Opsenica, I. M.. (2016). Synthesis and evaluation of thiophene-based guanylhydrazones (iminoguanidines) efficient against panel of voriconazole-resistant fungal isolates. in Bioorganic & Medicinal Chemistry
Pergamon-Elsevier Science Ltd, Oxford., 24(6), 1277-1291.
https://doi.org/10.1016/j.bmc.2016.01.058

Ajdačić V, Šenerović L, Vranić M, Pekmezović M, Arsić-Arsenijević V, Veselinović A, Veselinović J, Solaja BA, Nikodinović-Runić J, Opsenica IM. Synthesis and evaluation of thiophene-based guanylhydrazones (iminoguanidines) efficient against panel of voriconazole-resistant fungal isolates. in Bioorganic & Medicinal Chemistry. 2016;24(6):1277-1291.
doi:10.1016/j.bmc.2016.01.058 .

Ajdačić, Vladimir, Šenerović, Lidija, Vranić, Marija, Pekmezović, Marina, Arsić-Arsenijević, Valentina, Veselinović, Aleksandar, Veselinović, Jovana, Solaja, Bogdan A., Nikodinović-Runić, Jasmina, Opsenica, Igor M., "Synthesis and evaluation of thiophene-based guanylhydrazones (iminoguanidines) efficient against panel of voriconazole-resistant fungal isolates" in Bioorganic & Medicinal Chemistry, 24, no. 6 (2016):1277-1291,
https://doi.org/10.1016/j.bmc.2016.01.058 . .

TY  - JOUR
AU  - Bozinović, Nina
AU  - Segan, Sandra
AU  - Vojnović, Sandra
AU  - Pavić, Aleksandar
AU  - Solaja, Bogdan A.
AU  - Nikodinović-Runić, Jasmina
AU  - Opsenica, Igor M.
PY  - 2016
UR  - https://imagine.imgge.bg.ac.rs/handle/123456789/919
AB  - A novel series of thiepine derivatives were synthesized and evaluated as potential antimicrobials. All the synthesized compounds were evaluated for their antimicrobial activities in vitro against the fungi Candida albicans (ATCC 10231), C.parapsilosis (clinical isolate), Gram-negative bacterium Pseudomonas aeruginosa (ATCC 44752), and Gram-positive bacterium Staphylococcus aureus (ATCC 25923). Synthesized compounds showed higher antifungal activity than antibacterial activity, indicating that they could be used as selective antimicrobials. Selected thiepines efficiently inhibited Candida hyphae formation, a trait necessary for their pathogenicity. Thiepine 8-phenyl[1]benzothiepino[3,2-c]pyridine (16) efficiently killed Candida albicans at 15.6g/mL and showed no embryotoxicity at 75g/mL. Derivative 8-[4-(4,5-dihydro-1H-imidazol-2-yl)phenyl][1]benzothiepino[3,2-c]pyridine (23) caused significant hemolysis and in vitro DNA interaction. The position of the phenyl ring was essential for the antifungal activity, while the electronic effects of the substituents did not significantly influence activity. Results obtained from in vivo embryotoxicity on zebrafish (Danio rerio) encourage further structure optimizations.
PB  - Wiley, Hoboken
T2  - Chemical Biology & Drug Design
T1  - Synthesis and anti-Candida activity of novel benzothiepino[3,2-c]pyridine derivatives
EP  - 806
IS  - 6
SP  - 795
VL  - 88
DO  - 10.1111/cbdd.12809
ER  - 

@article{
author = "Bozinović, Nina and Segan, Sandra and Vojnović, Sandra and Pavić, Aleksandar and Solaja, Bogdan A. and Nikodinović-Runić, Jasmina and Opsenica, Igor M.",
year = "2016",
abstract = "A novel series of thiepine derivatives were synthesized and evaluated as potential antimicrobials. All the synthesized compounds were evaluated for their antimicrobial activities in vitro against the fungi Candida albicans (ATCC 10231), C.parapsilosis (clinical isolate), Gram-negative bacterium Pseudomonas aeruginosa (ATCC 44752), and Gram-positive bacterium Staphylococcus aureus (ATCC 25923). Synthesized compounds showed higher antifungal activity than antibacterial activity, indicating that they could be used as selective antimicrobials. Selected thiepines efficiently inhibited Candida hyphae formation, a trait necessary for their pathogenicity. Thiepine 8-phenyl[1]benzothiepino[3,2-c]pyridine (16) efficiently killed Candida albicans at 15.6g/mL and showed no embryotoxicity at 75g/mL. Derivative 8-[4-(4,5-dihydro-1H-imidazol-2-yl)phenyl][1]benzothiepino[3,2-c]pyridine (23) caused significant hemolysis and in vitro DNA interaction. The position of the phenyl ring was essential for the antifungal activity, while the electronic effects of the substituents did not significantly influence activity. Results obtained from in vivo embryotoxicity on zebrafish (Danio rerio) encourage further structure optimizations.",
publisher = "Wiley, Hoboken",
journal = "Chemical Biology & Drug Design",
title = "Synthesis and anti-Candida activity of novel benzothiepino[3,2-c]pyridine derivatives",
pages = "806-795",
number = "6",
volume = "88",
doi = "10.1111/cbdd.12809"
}

Bozinović, N., Segan, S., Vojnović, S., Pavić, A., Solaja, B. A., Nikodinović-Runić, J.,& Opsenica, I. M.. (2016). Synthesis and anti-Candida activity of novel benzothiepino[3,2-c]pyridine derivatives. in Chemical Biology & Drug Design
Wiley, Hoboken., 88(6), 795-806.
https://doi.org/10.1111/cbdd.12809

Bozinović N, Segan S, Vojnović S, Pavić A, Solaja BA, Nikodinović-Runić J, Opsenica IM. Synthesis and anti-Candida activity of novel benzothiepino[3,2-c]pyridine derivatives. in Chemical Biology & Drug Design. 2016;88(6):795-806.
doi:10.1111/cbdd.12809 .

Bozinović, Nina, Segan, Sandra, Vojnović, Sandra, Pavić, Aleksandar, Solaja, Bogdan A., Nikodinović-Runić, Jasmina, Opsenica, Igor M., "Synthesis and anti-Candida activity of novel benzothiepino[3,2-c]pyridine derivatives" in Chemical Biology & Drug Design, 88, no. 6 (2016):795-806,
https://doi.org/10.1111/cbdd.12809 . .