TY  - JOUR
AU  - Kamoutsis, Charalampos
AU  - Fesatidou, Maria
AU  - Petrou, Anthi
AU  - Geronikaki, Athina
AU  - Poroikov, Vladimir
AU  - Ivanov, Marija
AU  - Soković, Marina
AU  - Ćirić, Ana
AU  - Carazo, Alejandro
AU  - Mladenka, Premysl
PY  - 2021
UR  - https://radar.ibiss.bg.ac.rs/handle/123456789/4298
AB  - The goal of this research is to investigate the antimicrobial activity of nineteen previously
synthesized 3,6-disubstituted-1,2,4-triazolo[3,4-b]-1,3,4-thiadiazole derivatives. The compounds were
tested against a panel of three Gram-positive and three Gram-negative bacteria, three resistant strains,
and six fungi. Minimal inhibitory, bactericidal, and fungicidal concentrations were determined by a
microdilution method. All of the compounds showed antibacterial activity that was more potent
than both reference drugs, ampicillin and streptomycin, against all bacteria tested. Similarly, they
were also more active against resistant bacterial strains. The antifungal activity of the compounds
was up to 80-fold higher than ketoconazole and from 3 to 40 times higher than bifonazole, both of
which were used as reference drugs. The most active compounds (2, 3, 6, 7, and 19) were tested for
their inhibition of P. aeruginosa biofilm formation. Among them, compound 3 showed significantly
higher antibiofilm activity and appeared to be equipotent with ampicillin. The prediction of the
probable mechanism by docking on antibacterial targets revealed that E. coli MurB is the most suitable
enzyme, while docking studies on antifungal targets indicated a probable involvement of CYP51 in
the mechanism of antifungal activity. Finally, the toxicity testing in human cells confirmed their low
toxicity both in cancerous cell line MCF7 and non-cancerous cell line HK-2.
PB  - MDPI
T2  - Antibiotics
T1  - Triazolo Based-Thiadiazole Derivatives. Synthesis, Biological Evaluation and Molecular Docking Studies
IS  - 7
VL  - 10
DO  - 10.3390/antibiotics10070804
SP  - 804
ER  - 

@article{
author = "Kamoutsis, Charalampos and Fesatidou, Maria and Petrou, Anthi and Geronikaki, Athina and Poroikov, Vladimir and Ivanov, Marija and Soković, Marina and Ćirić, Ana and Carazo, Alejandro and Mladenka, Premysl",
year = "2021",
abstract = "The goal of this research is to investigate the antimicrobial activity of nineteen previously
synthesized 3,6-disubstituted-1,2,4-triazolo[3,4-b]-1,3,4-thiadiazole derivatives. The compounds were
tested against a panel of three Gram-positive and three Gram-negative bacteria, three resistant strains,
and six fungi. Minimal inhibitory, bactericidal, and fungicidal concentrations were determined by a
microdilution method. All of the compounds showed antibacterial activity that was more potent
than both reference drugs, ampicillin and streptomycin, against all bacteria tested. Similarly, they
were also more active against resistant bacterial strains. The antifungal activity of the compounds
was up to 80-fold higher than ketoconazole and from 3 to 40 times higher than bifonazole, both of
which were used as reference drugs. The most active compounds (2, 3, 6, 7, and 19) were tested for
their inhibition of P. aeruginosa biofilm formation. Among them, compound 3 showed significantly
higher antibiofilm activity and appeared to be equipotent with ampicillin. The prediction of the
probable mechanism by docking on antibacterial targets revealed that E. coli MurB is the most suitable
enzyme, while docking studies on antifungal targets indicated a probable involvement of CYP51 in
the mechanism of antifungal activity. Finally, the toxicity testing in human cells confirmed their low
toxicity both in cancerous cell line MCF7 and non-cancerous cell line HK-2.",
publisher = "MDPI",
journal = "Antibiotics",
title = "Triazolo Based-Thiadiazole Derivatives. Synthesis, Biological Evaluation and Molecular Docking Studies",
number = "7",
volume = "10",
doi = "10.3390/antibiotics10070804",
pages = "804"
}

Kamoutsis, C., Fesatidou, M., Petrou, A., Geronikaki, A., Poroikov, V., Ivanov, M., Soković, M., Ćirić, A., Carazo, A.,& Mladenka, P.. (2021). Triazolo Based-Thiadiazole Derivatives. Synthesis, Biological Evaluation and Molecular Docking Studies. in Antibiotics
MDPI., 10(7), 804.
https://doi.org/10.3390/antibiotics10070804

Kamoutsis C, Fesatidou M, Petrou A, Geronikaki A, Poroikov V, Ivanov M, Soković M, Ćirić A, Carazo A, Mladenka P. Triazolo Based-Thiadiazole Derivatives. Synthesis, Biological Evaluation and Molecular Docking Studies. in Antibiotics. 2021;10(7):804.
doi:10.3390/antibiotics10070804 .

Kamoutsis, Charalampos, Fesatidou, Maria, Petrou, Anthi, Geronikaki, Athina, Poroikov, Vladimir, Ivanov, Marija, Soković, Marina, Ćirić, Ana, Carazo, Alejandro, Mladenka, Premysl, "Triazolo Based-Thiadiazole Derivatives. Synthesis, Biological Evaluation and Molecular Docking Studies" in Antibiotics, 10, no. 7 (2021):804,
https://doi.org/10.3390/antibiotics10070804 . .

TY  - JOUR
AU  - Haroun, Michelyne
AU  - Tratrat, Christophe
AU  - Kolokotroni, Aggeliki
AU  - Petrou, Anthi
AU  - Geronikaki, Athina
AU  - Ivanov, Marija
AU  - Kostić, Marina
AU  - Soković, Marina
AU  - Carazo, Alejandro
AU  - Mladěnka, Přemysl
AU  - Sreeharsha, Nagaraja
AU  - Venugopala, Katharigatta N.
AU  - Nair, Anroop B.
AU  - Elsewedy, Heba S.
PY  - 2021
UR  - https://www.mdpi.com/2079-6382/10/3/309
UR  - https://radar.ibiss.bg.ac.rs/handle/123456789/4196
AB  - In this study, we report the design, synthesis, computational and experimental evaluation of the antimicrobial activity, as well as docking studies of new 5-methylthiazole based thiazolidinones. All compounds demonstrated antibacterial efficacy, some of which (1, 4, 10 and 13) exhibited good activity against E. coli and B. cereus. The evaluation of antibacterial activity against three resistant strains, MRSA, P. aeruginosa and E. coli, revealed that compound 12 showed the best activity, higher than reference drugs ampicillin and streptomycin, which were inactive or exhibited only bacteriostatic activity against MRSA, respectively. Ten out of fifteen compounds demonstrated higher potency than reference drugs against a resistant strain of E. coli, which appeared to be the most sensitive species to our compounds. Compounds 8, 13 and 14 applied in a concentration equal to MIC reduced P. aeruginosa biofilm formation by more than 50%. All compounds displayed antifungal activity, with compound 10 being the most active. The majority of compounds showed better activity than ketoconazole against almost all fungal strains. In order to elucidate the mechanism of antibacterial and antifungal activities, molecular docking studies on E. coli Mur B and C. albicans CYP51 and dihydrofolate reductase were performed. Docking analysis of E. coli MurB indicated a probable involvement of MurB inhibition in the antibacterial mechanism of tested compounds while docking to 14α-lanosterol demethylase (CYP51) and tetrahydrofolate reductase of Candida albicans suggested that probable involvement of inhibition of CYP51 reductase in the antifungal activity of the compounds. Potential toxicity toward human cells is also reported.
PB  - MDPI AG
T2  - Antibiotics
T1  - 5-Benzyliden-2-(5-methylthiazol-2-ylimino)thiazolidin-4-ones as Antimicrobial Agents. Design, Synthesis, Biological Evaluation and Molecular Docking Studies
IS  - 3
VL  - 10
DO  - 10.3390/antibiotics10030309
SP  - 309
ER  - 

@article{
author = "Haroun, Michelyne and Tratrat, Christophe and Kolokotroni, Aggeliki and Petrou, Anthi and Geronikaki, Athina and Ivanov, Marija and Kostić, Marina and Soković, Marina and Carazo, Alejandro and Mladěnka, Přemysl and Sreeharsha, Nagaraja and Venugopala, Katharigatta N. and Nair, Anroop B. and Elsewedy, Heba S.",
year = "2021",
abstract = "In this study, we report the design, synthesis, computational and experimental evaluation of the antimicrobial activity, as well as docking studies of new 5-methylthiazole based thiazolidinones. All compounds demonstrated antibacterial efficacy, some of which (1, 4, 10 and 13) exhibited good activity against E. coli and B. cereus. The evaluation of antibacterial activity against three resistant strains, MRSA, P. aeruginosa and E. coli, revealed that compound 12 showed the best activity, higher than reference drugs ampicillin and streptomycin, which were inactive or exhibited only bacteriostatic activity against MRSA, respectively. Ten out of fifteen compounds demonstrated higher potency than reference drugs against a resistant strain of E. coli, which appeared to be the most sensitive species to our compounds. Compounds 8, 13 and 14 applied in a concentration equal to MIC reduced P. aeruginosa biofilm formation by more than 50%. All compounds displayed antifungal activity, with compound 10 being the most active. The majority of compounds showed better activity than ketoconazole against almost all fungal strains. In order to elucidate the mechanism of antibacterial and antifungal activities, molecular docking studies on E. coli Mur B and C. albicans CYP51 and dihydrofolate reductase were performed. Docking analysis of E. coli MurB indicated a probable involvement of MurB inhibition in the antibacterial mechanism of tested compounds while docking to 14α-lanosterol demethylase (CYP51) and tetrahydrofolate reductase of Candida albicans suggested that probable involvement of inhibition of CYP51 reductase in the antifungal activity of the compounds. Potential toxicity toward human cells is also reported.",
publisher = "MDPI AG",
journal = "Antibiotics",
title = "5-Benzyliden-2-(5-methylthiazol-2-ylimino)thiazolidin-4-ones as Antimicrobial Agents. Design, Synthesis, Biological Evaluation and Molecular Docking Studies",
number = "3",
volume = "10",
doi = "10.3390/antibiotics10030309",
pages = "309"
}

Haroun, M., Tratrat, C., Kolokotroni, A., Petrou, A., Geronikaki, A., Ivanov, M., Kostić, M., Soković, M., Carazo, A., Mladěnka, P., Sreeharsha, N., Venugopala, K. N., Nair, A. B.,& Elsewedy, H. S.. (2021). 5-Benzyliden-2-(5-methylthiazol-2-ylimino)thiazolidin-4-ones as Antimicrobial Agents. Design, Synthesis, Biological Evaluation and Molecular Docking Studies. in Antibiotics
MDPI AG., 10(3), 309.
https://doi.org/10.3390/antibiotics10030309

Haroun M, Tratrat C, Kolokotroni A, Petrou A, Geronikaki A, Ivanov M, Kostić M, Soković M, Carazo A, Mladěnka P, Sreeharsha N, Venugopala KN, Nair AB, Elsewedy HS. 5-Benzyliden-2-(5-methylthiazol-2-ylimino)thiazolidin-4-ones as Antimicrobial Agents. Design, Synthesis, Biological Evaluation and Molecular Docking Studies. in Antibiotics. 2021;10(3):309.
doi:10.3390/antibiotics10030309 .

Haroun, Michelyne, Tratrat, Christophe, Kolokotroni, Aggeliki, Petrou, Anthi, Geronikaki, Athina, Ivanov, Marija, Kostić, Marina, Soković, Marina, Carazo, Alejandro, Mladěnka, Přemysl, Sreeharsha, Nagaraja, Venugopala, Katharigatta N., Nair, Anroop B., Elsewedy, Heba S., "5-Benzyliden-2-(5-methylthiazol-2-ylimino)thiazolidin-4-ones as Antimicrobial Agents. Design, Synthesis, Biological Evaluation and Molecular Docking Studies" in Antibiotics, 10, no. 3 (2021):309,
https://doi.org/10.3390/antibiotics10030309 . .

TY  - JOUR
AU  - Zveaghintseva, Marina
AU  - Stingaci, Eugenia
AU  - Pogrebnoi, Sergei
AU  - Smetanscaia, Anastasia
AU  - Valica, Vladimir
AU  - Uncu, Livia
AU  - Kravtsov, Victor
AU  - Melnik, Elena
AU  - Petrou, Anthi
AU  - Glamočlija, Jasmina
AU  - Soković, Marina
AU  - Carazo, Alejandro
AU  - Mladěnka, Přemysl
AU  - Poroikov, Vladimir
AU  - Geronikaki, Athina
AU  - Macaev, Fliur
PY  - 2021
UR  - https://radar.ibiss.bg.ac.rs/handle/123456789/4305
AB  - Herein we report the synthesis of some new 1H-1,2,4-triazole functionalized chromenols
(3a–3n) via tandem reactions of 1-(alkyl/aryl)-2-(1H-1,2,4-triazole-1-yl) with salicylic aldehydes and
the evaluation of their antifungal activity. In silico prediction of biological activity spectra with
computer program PASS indicate that the compounds have a high novelty compared to the known
antifungal agents. We did not find any close analog among the over 580,000 pharmaceutical agents
in the Cortellis Drug Discovery Intelligence database at the similarity cutoff of 70%. The evaluation
of antifungal activity in vitro revealed that the highest activity was exhibited by compound 3k,
followed by 3n. Their MIC values for different fungi were 22.1–184.2 and 71.3–199.8  M, respectively.
Twelve from fourteen tested compounds were more active than the reference drugs ketoconazole and
bifonazole. The most sensitive fungus appeared to be Trichoderma viride, while Aspergillus fumigatus
was the most resistant one. It was found that the presence of the 2-(tert-butyl)-2H-chromen-2-ol
substituent on the 4th position of the triazole ring is very beneficial for antifungal activity. Molecular
docking studies on C. albicans sterol 14 -demethylase (CYP51) and DNA topoisomerase IV were used
to predict the mechanism of antifungal activities. According to the docking results, the inhibition
of CYP51 is a putative mechanism of antifungal activity of the novel chromenol derivatives. We
also showed that most active compounds have a low cytotoxicity, which allows us to consider them
promising antifungal agents for the subsequent testing activity in in vivo assays.
PB  - Basel: MDPI
T2  - Molecules
T1  - Chromenol Derivatives as Novel Antifungal Agents: Synthesis, In Silico and In Vitro Evaluation
IS  - 14
VL  - 26
DO  - 10.3390/molecules26144304
SP  - 4304
ER  - 

@article{
author = "Zveaghintseva, Marina and Stingaci, Eugenia and Pogrebnoi, Sergei and Smetanscaia, Anastasia and Valica, Vladimir and Uncu, Livia and Kravtsov, Victor and Melnik, Elena and Petrou, Anthi and Glamočlija, Jasmina and Soković, Marina and Carazo, Alejandro and Mladěnka, Přemysl and Poroikov, Vladimir and Geronikaki, Athina and Macaev, Fliur",
year = "2021",
abstract = "Herein we report the synthesis of some new 1H-1,2,4-triazole functionalized chromenols
(3a–3n) via tandem reactions of 1-(alkyl/aryl)-2-(1H-1,2,4-triazole-1-yl) with salicylic aldehydes and
the evaluation of their antifungal activity. In silico prediction of biological activity spectra with
computer program PASS indicate that the compounds have a high novelty compared to the known
antifungal agents. We did not find any close analog among the over 580,000 pharmaceutical agents
in the Cortellis Drug Discovery Intelligence database at the similarity cutoff of 70%. The evaluation
of antifungal activity in vitro revealed that the highest activity was exhibited by compound 3k,
followed by 3n. Their MIC values for different fungi were 22.1–184.2 and 71.3–199.8  M, respectively.
Twelve from fourteen tested compounds were more active than the reference drugs ketoconazole and
bifonazole. The most sensitive fungus appeared to be Trichoderma viride, while Aspergillus fumigatus
was the most resistant one. It was found that the presence of the 2-(tert-butyl)-2H-chromen-2-ol
substituent on the 4th position of the triazole ring is very beneficial for antifungal activity. Molecular
docking studies on C. albicans sterol 14 -demethylase (CYP51) and DNA topoisomerase IV were used
to predict the mechanism of antifungal activities. According to the docking results, the inhibition
of CYP51 is a putative mechanism of antifungal activity of the novel chromenol derivatives. We
also showed that most active compounds have a low cytotoxicity, which allows us to consider them
promising antifungal agents for the subsequent testing activity in in vivo assays.",
publisher = "Basel: MDPI",
journal = "Molecules",
title = "Chromenol Derivatives as Novel Antifungal Agents: Synthesis, In Silico and In Vitro Evaluation",
number = "14",
volume = "26",
doi = "10.3390/molecules26144304",
pages = "4304"
}

Zveaghintseva, M., Stingaci, E., Pogrebnoi, S., Smetanscaia, A., Valica, V., Uncu, L., Kravtsov, V., Melnik, E., Petrou, A., Glamočlija, J., Soković, M., Carazo, A., Mladěnka, P., Poroikov, V., Geronikaki, A.,& Macaev, F.. (2021). Chromenol Derivatives as Novel Antifungal Agents: Synthesis, In Silico and In Vitro Evaluation. in Molecules
Basel: MDPI., 26(14), 4304.
https://doi.org/10.3390/molecules26144304

Zveaghintseva M, Stingaci E, Pogrebnoi S, Smetanscaia A, Valica V, Uncu L, Kravtsov V, Melnik E, Petrou A, Glamočlija J, Soković M, Carazo A, Mladěnka P, Poroikov V, Geronikaki A, Macaev F. Chromenol Derivatives as Novel Antifungal Agents: Synthesis, In Silico and In Vitro Evaluation. in Molecules. 2021;26(14):4304.
doi:10.3390/molecules26144304 .

Zveaghintseva, Marina, Stingaci, Eugenia, Pogrebnoi, Sergei, Smetanscaia, Anastasia, Valica, Vladimir, Uncu, Livia, Kravtsov, Victor, Melnik, Elena, Petrou, Anthi, Glamočlija, Jasmina, Soković, Marina, Carazo, Alejandro, Mladěnka, Přemysl, Poroikov, Vladimir, Geronikaki, Athina, Macaev, Fliur, "Chromenol Derivatives as Novel Antifungal Agents: Synthesis, In Silico and In Vitro Evaluation" in Molecules, 26, no. 14 (2021):4304,
https://doi.org/10.3390/molecules26144304 . .