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Caglayan C, Temel Y, Türkeş C, Ayna A, Ece A, Beydemir Ş. The effects of morin and methotrexate on pentose phosphate pathway enzymes and GR/GST/TrxR enzyme activities: An in vivo and in silico study. Arch Pharm (Weinheim) 2024; 357:e2300497. [PMID: 37972283 DOI: 10.1002/ardp.202300497] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2023] [Revised: 10/27/2023] [Accepted: 10/30/2023] [Indexed: 11/19/2023]
Abstract
In this study, the mechanisms by which the enzymes glucose-6-phosphate dehydrogenase (G6PD), 6-phosphogluconate dehydrogenase (6PGD), glutathione reductase (GR), glutathione-S-transferase (GST), and thioredoxin reductase (TrxR) are inhibited by methotrexate (MTX) were investigated, as well as whether the antioxidant morin can mitigate or prevent these adverse effects in vivo and in silico. For 10 days, rats received oral doses of morin (50 and 100 mg/kg body weight). On the fifth day, a single intraperitoneal injection of MTX (20 mg/kg body weight) was administered to generate toxicity. Decreased activities of G6PD, 6PGD, GR, GST, and TrxR were associated with MTX-related toxicity while morin treatment increased the activity of the enzymes. The docking analysis indicated that H-bonds, pi-pi stacking, and pi-cation interactions were the dominant interactions in these enzyme-binding pockets. Furthermore, the docked poses of morin and MTX against GST were subjected to molecular dynamic simulations for 200 ns, to assess the stability of both complexes and also to predict key amino acid residues in the binding pockets throughout the simulation. The results of this study suggest that morin may be a viable means of alleviating the enzyme activities of important regulatory enzymes against MTX-induced toxicity.
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Affiliation(s)
- Cuneyt Caglayan
- Department of Medical Biochemistry, Faculty of Medicine, Bilecik Şeyh Edebali University, Bilecik, Turkey
| | - Yusuf Temel
- Department of Solhan School of Health Services, Bingol University, Bingol, Turkey
| | - Cüneyt Türkeş
- Department of Biochemistry, Faculty of Pharmacy, Erzincan Binali Yıldırım University, Erzincan, Turkey
| | - Adnan Ayna
- Department of Chemistry, Faculty of Sciences and Arts, Bingol University, Bingol, Turkey
| | - Abdulilah Ece
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Biruni University, İstanbul, Turkey
| | - Şükrü Beydemir
- Department of Biochemistry, Faculty of Pharmacy, Anadolu University, Eskişehir, Turkey
- Bilecik Şeyh Edebali University, Bilecik, Turkey
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2
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Khamitova А, Berillo D, Lozynskyi A, Konechnyi Y, Mural D, Georgiyants V, Lesyk R. Thiadiazole and Thiazole Derivatives as Potential Antimicrobial Agents. Mini Rev Med Chem 2024; 24:531-545. [PMID: 37448365 DOI: 10.2174/1389557523666230713115947] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Revised: 05/17/2023] [Accepted: 06/09/2023] [Indexed: 07/15/2023]
Abstract
BACKGROUND This review summarizes data on heterocyclic systems with thiadiazole and thiazole fragments in molecules as promising antimicrobial agents. INTRODUCTION Thiadiazole and thiazole backbones are the most favored and well-known heterocycles, a common and essential feature of various drugs. These scaffolds occupy a central position and are the main structural components of numerous drugs with a wide spectrum of action. These include antimicrobial, antituberculous, anti-inflammatory, analgesic, antiepileptic, antiviral, and anticancer agents. METHOD The research is based on bibliosemantic and analytical methods using bibliographic and abstract databases, as well as databases of chemical compounds. RESULT This review reports on thiadiazole and thiazole derivatives, which have important pharmacological properties. We are reviewing the structural modifications of various thiadiazole and thiazole derivatives, more specifically, the antimicrobial activity reported over the last years, as we have taken this as our main research area. 80 compounds were illustrated, and various derivatives containing hydrazone bridged thiazole and pyrrole rings, 2-pyridine and 4-pyridine substituted thiazole derivatives, compounds containing di-, tri- and tetrathiazole moieties, spiro-substituted 4- thiazolidinone-imidazoline-pyridines were analyzed. Derivatives of 5-heteroarylidene-2,4- thiazolidinediones, fluoroquinolone-thiadiazole hybrids, and others. CONCLUSION 1,3,4-thiadiazoles and thiazoles are valuable resource for researchers engaged in rational drug design and development in this area.
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Affiliation(s)
- Аkzhonas Khamitova
- Department of Pharmaceutical and Toxicological Chemistry, Pharmacognosy and Botany, NJSC «Asfendiyarov Kazakh National Medical University», 94 Tole Bi, Almaty, 050000, Kazakhstan
| | - Dmitriy Berillo
- Department of Pharmaceutical and Toxicological Chemistry, Pharmacognosy and Botany, NJSC «Asfendiyarov Kazakh National Medical University», 94 Tole Bi, Almaty, 050000, Kazakhstan
- Department of Chemistry and Biochemical Engineering, Institute of Chemical and Biological Technologies (IHBT), Satbayev University 22 Satbaev, Almaty, 050013, Kazakhstan
| | - Andrii Lozynskyi
- Department of Pharmaceutical, Organic and Bioorganic Chemistry, Danylo Halytsky Lviv National Medical University, 69 Pekarska, Lviv, 79010, Ukraine
| | - Yulian Konechnyi
- Department of Microbiology, Danylo Halytsky Lviv National Medical University, 69 Pekarska, Lviv, 79010, Ukraine
| | - Dmytro Mural
- Department of Pharmaceutical Chemistry, National University of Pharmacy, 4 Valentynivska, Kharkiv, 61168, Ukraine
| | - Victoriya Georgiyants
- Department of Pharmaceutical Chemistry, National University of Pharmacy, 4 Valentynivska, Kharkiv, 61168, Ukraine
| | - Roman Lesyk
- Department of Pharmaceutical, Organic and Bioorganic Chemistry, Danylo Halytsky Lviv National Medical University, 69 Pekarska, Lviv, 79010, Ukraine
- Department of Biotechnology and Cell Biology, University of Information Technology and Management in Rzeszow, 2 Sucharskiego, Rzeszow, 35-225, Poland
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3
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Şahin İ, Çeşme M, Yüce N, Tümer F. Discovery of new 1,4-disubstituted 1,2,3-triazoles: in silico ADME profiling, molecular docking and biological evaluation studies. J Biomol Struct Dyn 2023; 41:1988-2001. [PMID: 35057704 DOI: 10.1080/07391102.2022.2025905] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
In this work, eight new 1,2,3-triazoles (6a-h) were synthesized from acetylenes' "click" reaction with p-substituted azide derivatives. The structures of the compounds were characterized using standard analytical and spectroscopic methods (elemental analysis, FT-IR, 1H(13C)NMR). The anticancer, antioxidant, α-amylase, ADME, molecular docking studies of synthesized triazoles were investigated. According to α -amylase enzyme inhibition results, all compounds except 6c (IC50: 2299 μg/mL) were found to have a higher IC50 value than the standard drug acarbose (IC50: 891 μg/mL). Compound 6g (IC50: 68 μg/mL) exhibited 13 times higher activity than standard acarbose. All compounds, except 6e, have been shown to have greater DPPH radical scavenging capabilities than BHT and β-carotene standards. According to ABTS radical scavenging studies, all compounds showed higher scavenging activity than ascorbic acid and Trolox. To determine the anticancer activity of the synthesized compounds, they were screened against the Hela cell line, and the results were compared with standard cisplatin (IC50: 16.30 μg/mL). Compound 6a (IC50: 49.03 μg/mL) was determined to have moderate activity relative to cisplatin. The compounds were examined comprehensively for ADME characteristics and did not violate any drug-likeness rule. ADME data showed that all physicochemical and pharmacological parameters of the compounds remained within defined limits as specified in Lipinski's rules (RO5) and put forth a high bioavailability profile. The molecular docking findings show that all molecules have a high affinity by exhibiting polar and apolar contact with essential residues in the binding pocket of α-amylase.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- İrfan Şahin
- Department of Chemistry, Faculty of Art and Sciences, Kahramanmaras Sutcu Imam University, Kahramanmaras, Turkey
| | - Mustafa Çeşme
- Department of Chemistry, Faculty of Art and Sciences, Kahramanmaras Sutcu Imam University, Kahramanmaras, Turkey
| | - Neslihan Yüce
- Department of Medical Biochemistry, Faculty of Medicine, Ataturk University, Erzurum, Turkey
| | - Ferhan Tümer
- Department of Chemistry, Faculty of Art and Sciences, Kahramanmaras Sutcu Imam University, Kahramanmaras, Turkey
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4
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Ozcan I, Akkoc S, Alici H, Capanlar S, Sahin O, Tahtaci H. Novel Thioether-Bridged 2,6-Disubstituted and 2,5,6-Trisubstituted Imidazothiadiazole Analogues: Synthesis, Antiproliferative Activity, ADME, and Molecular Docking Studies. Chem Biodivers 2023; 20:e202200884. [PMID: 36445849 DOI: 10.1002/cbdv.202200884] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Revised: 11/23/2022] [Accepted: 11/29/2022] [Indexed: 12/03/2022]
Abstract
In this study, starting from 2-amino-1,3,4-thiadiazole derivatives (3-5), a new series of 2,6-disubstituted (compounds 7-15) and 2,5,6-trisubstituted (compounds 16-33) imidazo[2,1-b][1,3,4]-thiadiazole derivatives were synthesized using cyclization and Mannich reaction mechanisms, respectively. All synthesized compounds were characterized by 1 H-NMR, 13 C-NMR, FT-IR, elemental analysis, and mass spectroscopy techniques. Also, X-ray diffraction analysis were used for compounds 4, 7, 11, 17, and 19. The cytotoxic effects of the new compounds on the viability of colon cancer cells (DLD-1), lung cancer cells (A549), and liver cancer cells (HepG2) were investigated using the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) method in vitro. Compound 15 was found to be the most potent anticancer drug candidate in this series with an IC50 value of 3.63 μM against HepG2 for 48 h. Moreover, the absorption, distribution, metabolism, and excretion (ADME) parameters of the synthesized compounds were calculated and thus, their potential to be safe drugs was evaluated. Finally, to support the biological activity experiments, molecular docking studies of these compounds were carried out on three different target cancer protein structures (PDB IDs: 5ETY, 1M17, and 3GCW), and the amino acids that play key roles in the binding of the compounds to these proteins were determined.
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Affiliation(s)
- Ibrahim Ozcan
- Karabuk University, Faculty of Science, Department of Chemistry, 78050, Karabuk, Türkiye
| | - Senem Akkoc
- Süleyman Demirel University, Faculty of Pharmacy, Department of Basic Pharmaceutical Sciences, 32260, Isparta, Türkiye.,Bahcesehir University, Faculty of Engineering and Natural Sciences, 34353, Istanbul, Türkiye
| | - Hakan Alici
- Zonguldak Bülent Ecevit University, Faculty of Science, Department of Physics, 67100, Zonguldak, Türkiye
| | - Seval Capanlar
- Zonguldak Bülent Ecevit University, Faculty of Science, Department of Chemistry, 67100, Zonguldak, Türkiye
| | - Onur Sahin
- Sinop University, Faculty of Health Sciences, Department of Occupational Health & Safety, 57000, Sinop, Türkiye
| | - Hakan Tahtaci
- Karabuk University, Faculty of Science, Department of Chemistry, 78050, Karabuk, Türkiye
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5
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Synthesis, molecular modeling and antioxidant screening of new thioether-bridged thiadiazole and thiadiazolopyrimidine analogues. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.133714] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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6
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Alia Abdulaziz Alfi, Alharbi A, Qurban J, Abualnaja MM, Abumelha HM, Saad FA, El-Metwaly NM. Molecular modeling and docking studies of new antioxidant pyrazole-thiazole hybrids. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.133582] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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7
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Molecular modeling of new thiazolyl-thiophene based compounds as antioxidant agents. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.133112] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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8
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Yang D, Qi X, Kalinina TA, Glukhareva TV, Tang L, Li Z, Fan Z. Synthesis of novel N-(2-phenyl-3-pyridyl) thiadiazole/isothiazole carboxamide analogs as potent plant elicitors. PEST MANAGEMENT SCIENCE 2022; 78:1138-1145. [PMID: 34799969 DOI: 10.1002/ps.6728] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/19/2021] [Revised: 10/01/2021] [Accepted: 11/19/2021] [Indexed: 06/13/2023]
Abstract
BACKGROUND Plant elicitors are a class of plant protection agents that can stimulate plant immunity against phytopathogen without a potential resistance problem. In searching for novel plant elicitor candidates, a series of novel N-(2-phenyl-3-pyridyl) thiadiazole/isothiazole carboxamide analogs were designed and synthesized. RESULTS In vitro bioassay showed that all new compounds exhibited weak direct fungicidal activity. However, compounds 3b, 3g, 3n and 3o showed broad spectrum of in vivo activity against four plant fungi tested. In particularly, 3g showed 80% activity against Rhizoctonia solani in a glasshouse at a concentration of 1 μg mL-1 . For induction activity of tobacco against tobacco mosaic virus (TMV), compounds 3c and 3v showed 67% and 68% inhibitory activity, respectively, which were superior to the positive controls ribavirin and ningnanmycin. Compound 3g showed moderate induction activity (41%). Reverse transcription quantitative polymerase chain reaction (RT-qPCR) analysis found that, 3g could up-regulate expression of genes that are related to reactive oxygen species (ROS), pathogenesis-related protein (PRP) and salicylic acid (SA) signalling. CONCLUSION These results indicated that 3g as an elicitor candidate might act on the SA signalling pathway. According to our findings, N-(2-phenyl-3-pyridyl) thiadiazole/isothiazole carboxamide analogs might be promising lead scaffolds as a novel plant elicitor for further investigation.
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Affiliation(s)
- Dongyan Yang
- State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin, P. R. China
- School of Chemistry and Chemical Engineering, Zhongkai University of Agriculture and Engineering, Guangzhou, P. R. China
| | - Xin Qi
- State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin, P. R. China
- Frontiers Science Center for New Organic Matter, College of Chemistry, Nankai University, Tianjin, P. R. China
| | - Tatiana A Kalinina
- Department of Technology for Organic Synthesis, Institute of Chemical Technology, Ural Federal University Named after the First President of Russia B. N. Yeltsin, Ekaterinburg, Russia
| | - Tatiana V Glukhareva
- Department of Technology for Organic Synthesis, Institute of Chemical Technology, Ural Federal University Named after the First President of Russia B. N. Yeltsin, Ekaterinburg, Russia
| | - Liangfu Tang
- State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin, P. R. China
- Frontiers Science Center for New Organic Matter, College of Chemistry, Nankai University, Tianjin, P. R. China
| | - Zhengming Li
- State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin, P. R. China
- Frontiers Science Center for New Organic Matter, College of Chemistry, Nankai University, Tianjin, P. R. China
| | - Zhijin Fan
- State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin, P. R. China
- Frontiers Science Center for New Organic Matter, College of Chemistry, Nankai University, Tianjin, P. R. China
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9
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Molecular modeling and docking of new 2-acetamidothiazole-based compounds as antioxidant agents. JOURNAL OF SAUDI CHEMICAL SOCIETY 2022. [DOI: 10.1016/j.jscs.2022.101431] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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10
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Erdogan M, Kiymaz K, Tahtaci H, Uysal S. Synthesis and characterization of the Co(II) and Ni(II) complexes of 1,3,4-thiadiazole-derived ketones and secondary alcohols: thermal and magnetic properties. J COORD CHEM 2021. [DOI: 10.1080/00958972.2021.1992401] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Melih Erdogan
- Science Faculty, Chemistry Department, Karabuk University, Campus of Demir-Celik, Karabuk, Turkey
| | - Kubra Kiymaz
- Science Faculty, Chemistry Department, Karabuk University, Campus of Demir-Celik, Karabuk, Turkey
| | - Hakan Tahtaci
- Science Faculty, Chemistry Department, Karabuk University, Campus of Demir-Celik, Karabuk, Turkey
| | - Saban Uysal
- Science Faculty, Chemistry Department, Karabuk University, Campus of Demir-Celik, Karabuk, Turkey
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11
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Abu-Melha S. Synthesis, Molecular Modeling, and Anticancer Screening of Some New Imidazothiadiazole Analogs. Polycycl Aromat Compd 2021. [DOI: 10.1080/10406638.2021.1957951] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Sraa Abu-Melha
- Department of Chemistry, Faculty of Science, King Khalid University, Abha, Saudi Arabia
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12
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Triazolo Based-Thiadiazole Derivatives. Synthesis, Biological Evaluation and Molecular Docking Studies. Antibiotics (Basel) 2021; 10:antibiotics10070804. [PMID: 34356726 PMCID: PMC8300616 DOI: 10.3390/antibiotics10070804] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2021] [Revised: 06/28/2021] [Accepted: 06/29/2021] [Indexed: 11/18/2022] Open
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.
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13
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Başoğlu F, Ulusoy-Güzeldemirci N, Akalın-Çiftçi G, Çetinkaya S, Ece A. Novel imidazo[2,1-b]thiazole-based anticancer agents as potential focal adhesion kinase inhibitors: Synthesis, in silico and in vitro evaluation. Chem Biol Drug Des 2021; 98:270-282. [PMID: 34021971 DOI: 10.1111/cbdd.13896] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2021] [Revised: 05/09/2021] [Accepted: 05/15/2021] [Indexed: 01/21/2023]
Abstract
The purpose of this study was to synthesize imidazo[2,1-b]thiazole derivatives, characterize them with spectroscopical techniques and investigate for cytotoxic and apoptotic effects on glioma C6 cancer cell line. The in vitro anticancer activities were also investigated against focal adhesion kinase. Most of the compounds, particularly the derivatives carrying 3-oxo-1-tiya-4-azaspiro[4.5]decane moiety, exhibited higher or comparable activities in comparison with the reference drug, cisplatin. Compounds with methyl, propyl, phenyl moieties at the eighth and second position of the spirothiazolidinone ring showed high FAK inhibitory activities. In addition, molecular docking studies shed light on the binding modes of the synthesized compounds. The critical interactions with amino acid residues located in the active site were revealed. The results obtained from both biological assay data and computational results might provide insight into developing new inhibitors against focal adhesion kinase.
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Affiliation(s)
- Faika Başoğlu
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Istanbul University, Istanbul, Turkey.,Department of Pharmaceutical Chemistry, Faculty of Pharmacy, European University of Lefke, Northern Cyprus, Turkey
| | | | - Gülşen Akalın-Çiftçi
- Department of Biochemistry, Faculty of Pharmacy, Anadolu University, Eskisehir, Turkey
| | - Serap Çetinkaya
- Department of Molecular Biology and Genetics, Science Faculty, Sivas Cumhuriyet University, Sivas, Turkey
| | - Abdulilah Ece
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Biruni University, Istanbul, Turkey
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14
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Askin S, Tahtaci H, Türkeş C, Demir Y, Ece A, Akalın Çiftçi G, Beydemir Ş. Design, synthesis, characterization, in vitro and in silico evaluation of novel imidazo[2,1-b][1,3,4]thiadiazoles as highly potent acetylcholinesterase and non-classical carbonic anhydrase inhibitors. Bioorg Chem 2021; 113:105009. [PMID: 34052739 DOI: 10.1016/j.bioorg.2021.105009] [Citation(s) in RCA: 70] [Impact Index Per Article: 23.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2021] [Revised: 05/06/2021] [Accepted: 05/19/2021] [Indexed: 12/12/2022]
Abstract
Imidazole and thiadiazole derivatives display an extensive application in pharmaceutical chemistry, and they have been investigated as bioactive molecules for medicinal chemistry purposes. Classical carbonic anhydrase (CA) inhibitors are based on sulfonamide groups, but inhibiting all CA isoforms nonspecifically, thereby causing undesired side effects, is the main drawback of these types of inhibitors. Here we reported an investigation of novel 2,6-disubstituted imidazo[2,1-b][1,3,4]thiadiazole derivatives (9a-k, 10a, and 11a) and 2,5,6-trisubstituted imidazo[2,1-b][1,3,4]thiadiazole derivatives (12a-20a) that do not possess the zinc-binding sulfonamide group for the inhibition of human carbonic anhydrase (hCA, EC 4.2.1.1) I and II isoforms and also of acetylcholinesterase (AChE, EC 3.1.1.7). Imidazo[2,1-b][1,3,4]thiadiazoles demonstrated low nanomolar inhibitory activity against hCA I, hCA II, and AChE (KIs are in the range of 23.44-105.50 nM, 10.32-104.70 nM, and 20.52-54.06 nM, respectively). Besides, compound 9b inhibit hCA I up to 18-fold compared to acetazolamide, while compound 10a has a 5-fold selectivity towards hCA II. The synthesized compounds were also evaluated for their cytotoxic effects on the L929 mouse fibroblast cell line. Molecular docking simulations were performed to elucidate these inhibitors' potential binding modes against hCA I and II isoforms and AChE. The novel compounds reported here can represent interesting lead compounds, and the results presented here might provide further structural guidance to discover and design more potent hCA and AChE inhibitors.
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Affiliation(s)
- Sercan Askin
- Department of Chemistry, Faculty of Science, Karabük University, Karabük 78050, Turkey
| | - Hakan Tahtaci
- Department of Chemistry, Faculty of Science, Karabük University, Karabük 78050, Turkey.
| | - Cüneyt Türkeş
- Department of Biochemistry, Faculty of Pharmacy, Erzincan Binali Yıldırım University, Erzincan 24100, Turkey.
| | - Yeliz Demir
- Department of Pharmacy Services, Nihat Delibalta Göle Vocational High School, Ardahan University, Ardahan 75700, Turkey
| | - Abdulilah Ece
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Biruni University, Istanbul 34010, Turkey.
| | - Gülşen Akalın Çiftçi
- Department of Biochemistry, Faculty of Pharmacy, Anadolu University, Eskişehir 26470, Turkey
| | - Şükrü Beydemir
- Department of Biochemistry, Faculty of Pharmacy, Anadolu University, Eskişehir 26470, Turkey; The Rectorate of Bilecik Şeyh Edebali University, Bilecik 11230, Turkey
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15
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Tunel H, Er M, Alici H, Onaran A, Karakurt T, Tahtaci H. Synthesis, structural characterization, biological activity, and theoretical studies of some novel
thioether‐bridged
2,
6‐disubstituted
imidazothiadiazole analogues. J Heterocycl Chem 2021. [DOI: 10.1002/jhet.4260] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Hasan Tunel
- Department of Chemistry, Faculty of Science Karabuk University Karabuk Turkey
| | - Mustafa Er
- Department of Chemistry, Faculty of Science Karabuk University Karabuk Turkey
| | - Hakan Alici
- Department of Physics, Faculty of Arts and Sciences Zonguldak Bulent Ecevit University Zonguldak Turkey
| | - Abdurrahman Onaran
- Department of Plant and Animal Production, Kumluca Vocational School of Higher Education Akdeniz University Antalya Turkey
| | - Tuncay Karakurt
- Department of Chemical Engineering, Faculty of Engineering and Architecture Kirsehir Ahi Evran University Kirsehir Turkey
| | - Hakan Tahtaci
- Department of Chemistry, Faculty of Science Karabuk University Karabuk Turkey
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16
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Dizdaroglu Y, Albay C, Arslan T, Ece A, Turkoglu EA, Efe A, Senturk M, Supuran CT, Ekinci D. Design, synthesis and molecular modelling studies of some pyrazole derivatives as carbonic anhydrase inhibitors. J Enzyme Inhib Med Chem 2020; 35:289-297. [PMID: 31797703 PMCID: PMC6896446 DOI: 10.1080/14756366.2019.1695791] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2019] [Revised: 11/11/2019] [Accepted: 11/13/2019] [Indexed: 11/08/2022] Open
Abstract
In this study, newly synthesised compounds 6, 8, 10 and other compounds (1-5, 7 and 9) and their inhibitory properties against the human isoforms hCA I and hCA II were reported for the first time. Compounds 1-10 showed effective inhibition profiles with KI values in the range of 5.13-16.9 nM for hCA I and of 11.77-67.39 nM against hCA II, respectively. Molecular docking studies were also performed with Glide XP to get insight into the inhibitory activity and to evaluate the binding modes of the synthesised compounds to hCA I and II. More rigorous binding energy calculations using MM-GBSA protocol which agreed well with observed activities were then performed to improve the docking scores. Results of in silico calculations showed that all compounds obey drug likeness properties. The new compounds reported here might be promising lead compounds for the development of new potent inhibitors as alternatives to classical hCA inhibitors.
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Affiliation(s)
- Yazgı Dizdaroglu
- Faculty of Science and Arts, Giresun University, Giresun, Turkey
| | - Canan Albay
- Faculty of Science and Arts, Giresun University, Giresun, Turkey
| | - Tayfun Arslan
- Faculty of Science and Arts, Giresun University, Giresun, Turkey
- Technical Sciences Vocational School, Giresun University, Giresun, Turkey
| | - Abdulilah Ece
- Faculty of Pharmacy, Biruni University, Istanbul, Turkey
| | - Emir A. Turkoglu
- Faculty of Pharmacy, University of Health Sciences, Istanbul, Turkey
| | - Asiye Efe
- Faculty of Pharmacy, Agri Ibrahim Cecen University, Agri, Turkey
| | - Murat Senturk
- Faculty of Pharmacy, Agri Ibrahim Cecen University, Agri, Turkey
| | | | - Deniz Ekinci
- Ondokuz Mayis University, Faculty of Agriculture, Department of Agricultural Biotechnology, Samsun, Turkey
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Olar R, Badea M, Maxim C, Grumezescu AM, Bleotu C, Măruţescu L, Chifiriuc MC. Anti-biofilm Fe 3O 4@C 18-[1,3,4]thiadiazolo[3,2- a]pyrimidin-4-ium-2-thiolate Derivative Core-shell Nanocoatings. MATERIALS 2020; 13:ma13204640. [PMID: 33080907 PMCID: PMC7603173 DOI: 10.3390/ma13204640] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/07/2020] [Revised: 10/07/2020] [Accepted: 10/13/2020] [Indexed: 01/11/2023]
Abstract
The derivatives 5,7-dimethyl[1,3,4]thiadiazolo[3,2-a]pyrimidin-4-ium-2-thiolate (1) and 7-methyl-5-phenyl[1,3,4]thiadiazolo[3,2-a]pyrimidin-4-ium-2-thiolate (2) were fully characterized by single-crystal X-ray diffraction. Their supramolecular structure is built through both π–π stacking and C=S–π interactions for both compounds. The embedment of the tested compounds into Fe3O4@C18 core-shell nanocoatings increased the protection degree against Candida albicans biofilms on the catheter surface, suggesting that these bioactive nanocoatings could be further developed as non-cytotoxic strategies for fighting biofilm-associated fungal infections.
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Affiliation(s)
- Rodica Olar
- Department of Inorganic Chemistry, Faculty of Chemistry, University of Bucharest, 90–92 Panduri Str., 050663 Bucharest, Romania; (M.B.); (C.M.)
- Correspondence: (R.O.); (M.C.C.)
| | - Mihaela Badea
- Department of Inorganic Chemistry, Faculty of Chemistry, University of Bucharest, 90–92 Panduri Str., 050663 Bucharest, Romania; (M.B.); (C.M.)
| | - Cătălin Maxim
- Department of Inorganic Chemistry, Faculty of Chemistry, University of Bucharest, 90–92 Panduri Str., 050663 Bucharest, Romania; (M.B.); (C.M.)
| | - Alexandru Mihai Grumezescu
- Department of Science and Engineering of Oxidic Materials and Nanomaterials, Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, 1–7 Polizu Street, 011061 Bucharest, Romania;
| | - Coralia Bleotu
- Stefan S Nicolau Institute of Virology, Romanian Academy, 285 Mihai Bravu Ave., 030304 Bucharest, Romania;
| | - Luminiţa Măruţescu
- Department of Microbiology, Faculty of Biology, University of Bucharest, 1–3 Aleea Portocalelor St., 60101 Bucharest, Romania;
- Environment and Earth Sciences Department, Research Institute of the University of Bucharest—ICUB, Splaiul Independenţei 91–95, 050095 Bucharest, Romania
| | - Mariana Carmen Chifiriuc
- Department of Microbiology, Faculty of Biology, University of Bucharest, 1–3 Aleea Portocalelor St., 60101 Bucharest, Romania;
- Environment and Earth Sciences Department, Research Institute of the University of Bucharest—ICUB, Splaiul Independenţei 91–95, 050095 Bucharest, Romania
- Academy of Romanian Scientists, 010071 Bucharest, Romania
- Correspondence: (R.O.); (M.C.C.)
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18
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Synthesis, Characterization, Antimicrobial Evaluation, and Computational Investigation of Substituted Imidazo[2,1‐
b
][1,3,4]Thiadiazole Derivatives. ChemistrySelect 2020. [DOI: 10.1002/slct.202002821] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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19
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Verma R, Boshoff HIM, Arora K, Bairy I, Tiwari M, Varadaraj BG, Shenoy GG. Synthesis, evaluation, molecular docking, and molecular dynamics studies of novel N-(4-[pyridin-2-yloxy]benzyl)arylamine derivatives as potential antitubercular agents. Drug Dev Res 2020; 81:315-328. [PMID: 31782209 PMCID: PMC11382352 DOI: 10.1002/ddr.21623] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2019] [Revised: 10/16/2019] [Accepted: 10/24/2019] [Indexed: 01/23/2023]
Abstract
A new series of novel triclosan (2,4,4'-trichloro-2'-hydroxydiphenylether) analogues were designed, synthesized, and screened for their in vitro antimycobacterial and antibacterial activities. Most of the compounds showed significant activity against Mycobacterium tuberculosis H37Rv strain with minimum inhibitory concentration (MIC) values in 20-40 μM range in GAST/Fe medium when compared with triclosan (43 μM) in the first week of assay, and after additional incubation, seven compounds, that is, 2a, 2c, 2g, 2h, 2i, 2j, and 2m, exhibited MIC values at the concentration of 20-40 μM. The compounds also showed more significant activity against Bacillus subtilis and Staphylococcus aureus. The synthesized compounds showed druggable properties, and the predicted ADME (absorption, distribution, metabolism, and excretion) properties were within the acceptable limits. The in silico studies predicted better interactions of compounds with target protein residues and a higher dock score in comparison with triclosan. Molecular dynamics simulation study of the most active compound 2i was performed in order to further explore the stability of the protein-ligand complex and the protein-ligand interaction in detail.
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Affiliation(s)
- Ruchi Verma
- Department of Pharmaceutical Chemistry, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal, Karnataka, India
| | - Helena I M Boshoff
- Tuberculosis Research Section, Laboratory of Clinical Immunology and Microbiology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Maryland
| | - Kriti Arora
- Tuberculosis Research Section, Laboratory of Clinical Immunology and Microbiology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Maryland
| | - Indira Bairy
- Department of Microbiology, Melaka Manipal Medical College, Manipal Academy of Higher Education, Manipal, Karnataka, India
| | - Mradul Tiwari
- Department of Pharmaceutical Biotechnology, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal, Karnataka, India
| | - Bhat G Varadaraj
- Department of Pharmaceutical Chemistry, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal, Karnataka, India
| | - G Gautham Shenoy
- Department of Pharmaceutical Chemistry, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal, Karnataka, India
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20
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Fesatidou M, Petrou A, Athina G. Heterocycle Compounds with Antimicrobial Activity. Curr Pharm Des 2020; 26:867-904. [DOI: 10.2174/1381612826666200206093815] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2019] [Accepted: 11/19/2019] [Indexed: 12/19/2022]
Abstract
Background:Bacterial infections are a growing problem worldwide causing morbidity and mortality mainly in developing countries. Moreover, the increased number of microorganisms, developing multiple resistances to known drugs, due to abuse of antibiotics, is another serious problem. This problem becomes more serious for immunocompromised patients and those who are often disposed to opportunistic fungal infections.Objective:The objective of this manuscript is to give an overview of new findings in the field of antimicrobial agents among five-membered heterocyclic compounds. These heterocyclic compounds especially five-membered attracted the interest of the scientific community not only for their occurrence in nature but also due to their wide range of biological activities.Method:To reach our goal, a literature survey that covers the last decade was performed.Results:As a result, recent data on the biological activity of thiazole, thiazolidinone, benzothiazole and thiadiazole derivatives are mentioned.Conclusion:It should be mentioned that despite the progress in the development of new antimicrobial agents, there is still room for new findings. Thus, research still continues.
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Affiliation(s)
- Maria Fesatidou
- School of Health, Department of Pharmacy, Aristotle University of Thessaloniki, Thessaloniki 54124, Greece
| | - Anthi Petrou
- School of Health, Department of Pharmacy, Aristotle University of Thessaloniki, Thessaloniki 54124, Greece
| | - Geronikaki Athina
- School of Health, Department of Pharmacy, Aristotle University of Thessaloniki, Thessaloniki 54124, Greece
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21
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Jin Z, Zhang C, Liu M, Jiao S, Zhao J, Liu X, Lin H, Chi-Cheong Wan D, Hu C. Synthesis, biological activity, molecular docking studies of a novel series of 3-Aryl-7 H-thiazolo[3,2- b]-1,2,4-triazin-7-one derivatives as the acetylcholinesterase inhibitors. J Biomol Struct Dyn 2020; 39:2478-2489. [PMID: 32266865 DOI: 10.1080/07391102.2020.1753576] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
The acetylcholinesterase inhibitors play a critical role in the drug therapy for Alzheimer's disease. In this study, twenty-nine novel 3-aryl-7H-thiazolo[3,2-b]-1,2,4-triazin-7-one derivatives were synthesized and assayed for their human acetylcholinesterase (hAChE) inhibitory activities. Inhibitory ratio values of seventeen compounds were above 55% with 4c having the highest value as 77.19%. The compounds with the halogen atoms in the aromatic ring, and N,N-diethylamino or N,N-dimethylamino groups in the side chains at C-3 positions exhibited good inhibitory activity. SAR study was carried out by means of molecular docking technique. According to molecular docking results, the common interacting site for all compounds were found to be peripheral anionic site whereas highly active compounds were interacting with the catalytic active site too. HIGHLIGHTSA novel series of 3-aryl-7H-thiazolo[3,2-b]-1,2,4-triazin-7-one derivatives were synthesized and assayed for their human acetylcholinesterase (hAChE) inhibitory activities.The SAR study of the target 3-aryl-7H-thiazolo[3,2-b]-1,2,4-triazin-7-one derivatives was summarized.The active sites in the acetylcholinesterase were analyzed by molecular docking technique.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Zhe Jin
- Key Laboratory of Structure-based Drug Design & Discovery, Ministry of Education, Shenyang Pharmaceutical University, Shenyang, China
| | - Chao Zhang
- Key Laboratory of Structure-based Drug Design & Discovery, Ministry of Education, Shenyang Pharmaceutical University, Shenyang, China
| | - Miao Liu
- Key Laboratory of Structure-based Drug Design & Discovery, Ministry of Education, Shenyang Pharmaceutical University, Shenyang, China
| | - Simeng Jiao
- Key Laboratory of Structure-based Drug Design & Discovery, Ministry of Education, Shenyang Pharmaceutical University, Shenyang, China
| | - Jing Zhao
- Key Laboratory of Structure-based Drug Design & Discovery, Ministry of Education, Shenyang Pharmaceutical University, Shenyang, China
| | - Xiaoping Liu
- Key Laboratory of Structure-based Drug Design & Discovery, Ministry of Education, Shenyang Pharmaceutical University, Shenyang, China
| | - Huangquan Lin
- School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - David Chi-Cheong Wan
- School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Chun Hu
- Key Laboratory of Structure-based Drug Design & Discovery, Ministry of Education, Shenyang Pharmaceutical University, Shenyang, China
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22
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Er M, Ahmadov F, Karakurt T, Direkel Ş, Tahtaci H. A Novel Class Substituted Imidazo[2,1‐
b
][1,3,4]thiadiazole Derivatives: Synthesis, Characterization, In Vitro Biological Activity, and Potential Inhibitors Design Studies. ChemistrySelect 2019. [DOI: 10.1002/slct.201903886] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Mustafa Er
- Department of ChemistryFaculty of ScienceKarabuk University 78050 Karabuk Turkey
| | - Farid Ahmadov
- Department of ChemistryFaculty of ScienceKarabuk University 78050 Karabuk Turkey
| | - Tuncay Karakurt
- Department of Chemical EngineeringFaculty of Engineering and ArchitectureKırşehir Ahi Evran University 40100 Kırşehir Turkey
| | - Şahin Direkel
- Department of Medical MicrobiologyFaculty of MedicineGiresun University Giresun 28100 Turkey
| | - Hakan Tahtaci
- Department of ChemistryFaculty of ScienceKarabuk University 78050 Karabuk Turkey
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23
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Novel substituted benzothiazole and Imidazo[2,1-b][1,3,4]Thiadiazole derivatives: Synthesis, characterization, molecular docking study, and investigation of their in vitro antileishmanial and antibacterial activities. J Mol Struct 2019. [DOI: 10.1016/j.molstruc.2019.05.104] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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24
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Er M, Tahtaci H, Karakurt T, Onaran A. Novel Substituted Imidazo[2,1‐
b
][1,3,4]Thiadiazole Derivatives: Synthesis, Characterization, Molecular Docking Study, and Investigation of Their
In Vitro
Antifungal Activities. J Heterocycl Chem 2019. [DOI: 10.1002/jhet.3653] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Mustafa Er
- Department of Chemistry, Faculty of ScienceKarabuk University 78050 Karabuk Turkey
| | - Hakan Tahtaci
- Department of Chemistry, Faculty of ScienceKarabuk University 78050 Karabuk Turkey
| | - Tuncay Karakurt
- Department of Chemical Engineering, Faculty of Engineering and ArchitectureAhi Evran University 40100 Kırşehir Turkey
| | - Abdurrahman Onaran
- Department of Plant Protection, Faculty of AgricultureGaziosmanpasa University 60250 Tokat Turkey
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25
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Cascioferro S, Parrino B, Petri GL, Cusimano MG, Schillaci D, Di Sarno V, Musella S, Giovannetti E, Cirrincione G, Diana P. 2,6-Disubstituted imidazo[2,1-b][1,3,4]thiadiazole derivatives as potent staphylococcal biofilm inhibitors. Eur J Med Chem 2019; 167:200-210. [PMID: 30772604 DOI: 10.1016/j.ejmech.2019.02.007] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2018] [Revised: 02/01/2019] [Accepted: 02/02/2019] [Indexed: 12/13/2022]
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26
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Türk S, Karakuş S, Ece A, Ulusoy S, Bosgelmez-Tınaz G. Synthesis, Structure Elucidation and Biological Activities of Some Novel 4(3H)-Quinazolinones as Anti-Biofilm Agents. LETT DRUG DES DISCOV 2019. [DOI: 10.2174/1570180815666180621101123] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Background: Pseudomonas aeruginosa is an opportunistic pathogen that causes chronic
infections in immunocompromised patients. The inhibition of Quorum Sensing (QS) system has
been recognized as an attractive strategy for the treatment of P. aeruginosa infections. In the present
study, a series of novel 2-methyl-3-[4-(substituedaminosulfonyl)phenyl]-4(3H)-quinazolinones
(1-8) were synthesized and tested for their biofilm formation and swarming motility inhibitory
activities in P. aeruginosa PA01.
</P><P>
Findings: These compounds were found to reduce biofilm formation by 20-32% and swarming
motility by 51-62% in P. aeruginosa PA01 at a concentration of 12.5µM. Molecular docking
studies were also performed to elucidate the possible key interactions of these compounds with the
active site of the P. aeruginosa QS receptor LasR. Furthermore, some molecular properties related
to drug likeness and ADME were predicted.
</P><P>
Results and Conclusion: Results of this study demonstrated that compounds 1-8 can influence
QS-regulated biofilm formation and swarming motility in P. aeruginosa PA01 by binding LasR
protein and could be developed as anti-biofilm agents to treat chronic biofilm associated infections
caused by P. aeruginosa and other clinically significant pathogens.
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Affiliation(s)
- Sevda Türk
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Marmara University, 34668 Istanbul, Turkey
| | - Sevgi Karakuş
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Marmara University, 34668 Istanbul, Turkey
| | - Abdulilah Ece
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Biruni University, 34010 Istanbul, Turkey
| | - Seyhan Ulusoy
- Department of Biology, Faculty of Arts and Sciences, Süleyman Demirel University, 32260 Isparta, Turkey
| | - Gülgün Bosgelmez-Tınaz
- Department of Basic Pharmaceutical Sciences, Faculty of Pharmacy, Marmara University, 34668 Istanbul, Turkey
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Er M, Abounakhla AM, Tahtaci H, Bawah AH, Çınaroğlu SS, Onaran A, Ece A. An integrated approach towards the development of novel antifungal agents containing thiadiazole: synthesis and a combined similarity search, homology modelling, molecular dynamics and molecular docking study. Chem Cent J 2018; 12:121. [PMID: 30470928 PMCID: PMC6768040 DOI: 10.1186/s13065-018-0485-3] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2018] [Accepted: 11/03/2018] [Indexed: 12/14/2022] Open
Abstract
Background This study aims to synthesise and characterise novel compounds containing 2-amino-1,3,4-thiadiazole and their acyl derivatives and to investigate antifungal activities. Similarity search, molecular dynamics and molecular docking were also studied to find out a potential target and enlighten the inhibition mechanism. Results As a first step, 2-amino-1,3,4-thiadiazole derivatives (compounds 3 and 4) were synthesised with high yields (81 and 84%). The target compounds (6a–n and 7a–n) were then synthesised with moderate to high yields (56–87%) by reacting 3 and 4 with various acyl chloride derivatives (5a–n). The synthesized compounds were characterized using the IR, 1H-NMR, 13C-NMR, Mass, X-ray (compound 7n) and elemental analysis techniques. Later, the in vitro antifungal activities of the synthesised compounds were determined. The inhibition zones exhibited by the compounds against the tested fungi, their minimum fungicidal activities, minimum inhibitory concentration and the lethal dose values (LD50) were determined. The compounds exhibited moderate to high levels of activity against all tested pathogens. Finally, in silico modelling was used to enlighten inhibition mechanism using ligand and structure-based methods. As an initial step, similarity search was carried out and the resulting proteins that belong to Homo sapiens were used as reference in sequence similarity search to find the corresponding amino acid sequences in target organisms. Homology modelling was used to construct the protein structure. The stabilised protein structure obtained from molecular dynamics simulation was used in molecular docking. Conclusion The overall results presented here might be a good starting point for the identification of novel and more active compounds as antifungal agents.![]() Electronic supplementary material The online version of this article (10.1186/s13065-018-0485-3) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Mustafa Er
- Department of Chemistry, Faculty of Science, Karabuk University, 78050, Karabuk, Turkey.
| | | | - Hakan Tahtaci
- Department of Chemistry, Faculty of Science, Karabuk University, 78050, Karabuk, Turkey
| | - Ali Hasin Bawah
- Department of Chemistry, Faculty of Science, Karabuk University, 78050, Karabuk, Turkey
| | - Süleyman Selim Çınaroğlu
- Department of Medical Biotechnology, Institute of Health Sciences, Acıbadem Mehmet Ali Aydınlar University, 34752, İstanbul, Turkey
| | - Abdurrahman Onaran
- Department of Plant Protection, Faculty of Agriculture, Gaziosmanpasa University, 60250, Tokat, Turkey
| | - Abdulilah Ece
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Biruni University, 34010, Istanbul, Turkey.
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5-Adamantan thiadiazole-based thiazolidinones as antimicrobial agents. Design, synthesis, molecular docking and evaluation. Bioorg Med Chem 2018; 26:4664-4676. [PMID: 30107969 DOI: 10.1016/j.bmc.2018.08.004] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2018] [Revised: 07/24/2018] [Accepted: 08/02/2018] [Indexed: 01/23/2023]
Abstract
In continuation of our efforts to develop new compounds with antimicrobial properties we describe design, synthesis, molecular docking study and evaluation of antimicrobial activity of seventeen novel 2-{[5-(adamantan-1-yl)-1,3,4-thiadiazol-2-yl]-imino}-5-arylidene-1,3-thiazolidin-4-ones. All compounds showed antibacterial activity against eight Gram positive and Gram negative bacterial species. Twelve out of seventeen compounds were more potent than streptomycin and all compounds exhibited higher potency than ampicillin. Compounds were also tested against three resistant bacterial strains: MRSA, P. aeruginosa and E. coli. The best antibacterial potential against ATCC and resistant strains was observed for compound 8 (2-{[5-(adamantan-1-yl)-1,3,4-thiadiazol-2-yl]-imino}-5-(4-nitrobenzylidene)-1,3thiazolidin-4-one). The most sensitive bacterium appeared to be S. typhimirium, followed by B. cereus while L. monocitogenes and M. flavus were the most resistant. Compounds were also tested for their antifungal activity against eight fungal species. All compounds exhibited antifungal activity better than the reference drugs bifonazole and ketokonazole (3-115 times). It was found that compound 8 appeared again to be the most potent. Molecular docking studies on E. coli MurB, MurA as well as C. albicans CYP 51 and dihydrofolate reductase were used for the prediction of mechanism of antibacterial and antifungal activities confirming the experimental results.
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