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Design, Synthesis, In Silico and POM Studies for the Identification of the Pharmacophore Sites of Benzylidene Derivatives. Molecules 2023; 28:molecules28062613. [PMID: 36985587 PMCID: PMC10053039 DOI: 10.3390/molecules28062613] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2023] [Revised: 03/08/2023] [Accepted: 03/09/2023] [Indexed: 03/16/2023] Open
Abstract
Due to the uneven distribution of glycosidase enzyme expression across bacteria and fungi, glycoside derivatives of antimicrobial compounds provide prospective and promising antimicrobial materials. Therefore, herein, we report the synthesis and characterization of six novel methyl 4,6-O-benzylidene-α-d-glucopyranoside (MBG) derivatives (2–7). The structures were ascertained using spectroscopic techniques and elemental analyses. Antimicrobial tests (zone of inhibition, MIC and MBC) were carried out to determine their ability to inhibit the growth of different Gram-positive, Gram-negative bacteria and fungi. The highest antibacterial activity was recorded with compounds 4, 5, 6 and 7. The compounds with the most significant antifungal efficacy were 4, 5, 6 and 7. Based on the prediction of activity spectra for substances (PASS), compounds 4 and 7 have promising antimicrobial capacity. Molecular docking studies focused on fungal and bacterial proteins where derivatives 3 and 6 exhibited strong binding affinities. The molecular dynamics study revealed that the complexes formed by these derivatives with the proteins L,D-transpeptidase Ykud and endoglucanase from Aspergillus niger remained stable, both over time and in physiological conditions. Structure–activity relationships, including in vitro and in silico results, revealed that the acyl chains [lauroyl-(CH3(CH2)10CO-), cinnamoyl-(C6H5CH=CHCO-)], in combination with sugar, were found to have the most potential against human and fungal pathogens. Synthetic, antimicrobial and pharmacokinetic studies revealed that MBG derivatives have good potential for antimicrobial activity, developing a therapeutic target for bacteria and fungi. Furthermore, the Petra/Osiris/Molinspiration (POM) study clearly indicated the presence of an important (O1δ−----O2δ−) antifungal pharmacophore site. This site can also be explored as a potential antiviral moiety.
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2
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Desai NC, Joshi SB, Khasiya AG, Jadeja DJ, Mehta HK, Pandya M, Ahmad I, Patel H. Pyrazolo-imidazolidinones: Synthesis, antimicrobial assessment and molecular modelling studies by molecular mechanic and quantum mechanic approach. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.134000] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
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3
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Küçükoğlu K, Acar Çevik U, Nadaroglu H, Celik I, Işık A, Bostancı HE, Özkay Y, Kaplancıklı ZA. Design, synthesis and molecular docking studies of novel benzimidazole-1,3,4-oxadiazole hybrids for their carbonic anhydrase inhibitory and antioxidant effects. Med Chem Res 2022. [DOI: 10.1007/s00044-022-02943-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
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4
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Khan MA, Khan HM, Ganie IB, Kumar S, Shahzad A, Celik I, Shahid M. Anti-quorum sensing, antibiofilm, and antibacterial activities of extracts of Centella asiatica L. leaves, and in vitro derived leaves-calli through tissue culture: a potential for biofouling-prevention. BIOFOULING 2022; 38:715-728. [PMID: 36062553 DOI: 10.1080/08927014.2022.2117034] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/16/2022] [Revised: 08/11/2022] [Accepted: 08/21/2022] [Indexed: 06/15/2023]
Abstract
Extracts of Centella asiatica leaves (LEs), and in-vitro leaf-calli (CEs), were investigated for antibacterial, antibiofilm, and anti-quorum sensing activities. Ethyl acetate extracts from leaves (EALE), leaf-calli (EACE), methanolic extracts from leaves (MELE), and leaf-calli (MECE) showed antibacterial activity; the minimum inhibitory concentrations (MICs) of LEs and CEs ranged from 0.312-2.50 mg ml-1 and 0.625 - 2.50 mg ml-1, respectively. The MICs of EALE and EACE were 2.50 mg ml-1, each, for C. violaceum 12742, and P. aeruginosa PAO1. At sub-MIC levels, EALE and EACE showed anti-quorum sensing (anti-QS) activity, demonstrated by concentration dependent pigment inhibition of C. violaceum 12742. Similarly, EALE and EACE inhibited QS-controlled virulence factors in P. aeruginosa PAO1 (biofilm, pyocyanin, and pyoverdin); again, the inhibition was concentration-dependent. The best effect was at immediate sub-MIC concentration i.e. 1250 µg ml-1. GC-MS analyses revealed the presence of compound 9,12-Octadecadienoic acid, and in silico docking study suggested interactions with QS-receptors CviR', LasI, and LasR proteins for anti-QS activity.
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Affiliation(s)
- Mo Ahamad Khan
- Department of Microbiology, Faculty of Medicine, Aligarh Muslim University, Aligarh, India
| | - Haris M Khan
- Department of Microbiology, Faculty of Medicine, Aligarh Muslim University, Aligarh, India
| | - Irfan Bashir Ganie
- Department of Botany, Faculty of Life Science, Aligarh Muslim University, Aligarh, India
| | - Sachin Kumar
- Department of Microbiology, Faculty of Medicine, Aligarh Muslim University, Aligarh, India
| | - Anwar Shahzad
- Department of Botany, Faculty of Life Science, Aligarh Muslim University, Aligarh, India
| | - Ismail Celik
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Erciyes University, Kayseri, Turkey
| | - Mohammad Shahid
- Department of Microbiology, Immunology and Infectious Diseases, College of Medicine and Medical Science, Arabian Gulf University, Kingdom of Bahrain
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5
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Celik I, Sarıaltın SY, Çoban T, Kılcıgil G. Design, Synthesis,
in Vitro
and
in Silico
Studies of Benzimidazole‐Linked Oxadiazole Derivatives as Anti‐inflammatory Agents. ChemistrySelect 2022. [DOI: 10.1002/slct.202201548] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Ismail Celik
- Erciyes University Faculty of Pharmacy Department of Pharmaceutical Chemistry 38039 Kayseri Turkey
| | - Sezen Yılmaz Sarıaltın
- Ankara University Faculty of Pharmacy Department of Pharmaceutical Toxicology 06100 Tandoğan Ankara Turkey
| | - Tülay Çoban
- Ankara University Faculty of Pharmacy Department of Pharmaceutical Toxicology 06100 Tandoğan Ankara Turkey
| | - Gülgün Kılcıgil
- Ankara University Faculty of Pharmacy Department of Pharmaceutical Chemistry 06100 Tandoğan Ankara Turkey
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6
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Işık A, Acar Çevik U, Karayel A, Celik I, Erçetin T, Koçak A, Özkay Y, Kaplancıklı ZA. Synthesis and molecular modelling of thiadizole based hydrazone derivatives as acetylcholinesterase and butyrylcholinesterase inhibitory activities. SAR AND QSAR IN ENVIRONMENTAL RESEARCH 2022; 33:193-214. [PMID: 35243936 DOI: 10.1080/1062936x.2022.2041723] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Accepted: 02/03/2022] [Indexed: 06/14/2023]
Abstract
Some novel substituted thiazolylhydrazine derivatives were designed, synthesized and their inhibitory effects on acetylcholinesterase (AChE) and butyrylcholinesterase (BuChE) enzymes and antioxidant activities were investigated. The structures of the synthesized compounds were determined using different spectroscopic techniques such as 1H-NMR, 13C-NMR, and HRMS. According to the enzyme inhibition results, the synthesized compounds showed selectivity against BuChE enzyme inhibition. Compounds 5e, 5g, 5i and 5j displayed significant BuChE inhibition potencies. Among them, compound 5i was found to be the most effective derivative with an IC50 value of 56.01 ± 0.054 µM. In addition, their antioxidant properties were evaluated in vitro through the 2,2-diphenyl-1-picrylhydrazyl (DPPH) assay. For compounds 5e, 5g, 5i and 5j in silico molecular docking and 100 ns molecular dynamics simulations studies against the BuChE enzyme were performed to determine possible protein-ligand interactions and stability. DFT-D3 study was performed to stabilize of compounds 5e, 5g, 5i and 5j both in gas and solvent medium and investigated their electronic properties. Of all geometries, that of DMSO is the lowest one.
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Affiliation(s)
- A Işık
- Department of Biochemistry, Faculty of Science, Selçuk University, Konya, Turkey
| | - U Acar Çevik
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Anadolu University, Eskişehir, Turkey
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Doping and Narcotic Compounds Analysis Laboratory, Anadolu University, Eskişehir, Turkey
| | - A Karayel
- Faculty of Arts and Science Department of Physics, Hitit University, Çorum, Turkey
| | - I Celik
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Erciyes University, Kayseri, Turkey
| | - T Erçetin
- Department of Pharmacognosy, Eastern Mediterranean University, Famagusta, Cyprus
| | - A Koçak
- Department of Chemistry, Faculty of Science, Selçuk University, Konya, Turkey
| | - Y Özkay
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Anadolu University, Eskişehir, Turkey
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Doping and Narcotic Compounds Analysis Laboratory, Anadolu University, Eskişehir, Turkey
| | - Z A Kaplancıklı
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Anadolu University, Eskişehir, Turkey
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Ghallab DS, Shawky E, Metwally AM, Celik I, Ibrahim RS, Mohyeldin MM. Integrated in silico - in vitro strategy for the discovery of potential xanthine oxidase inhibitors from Egyptian propolis and their synergistic effect with allopurinol and febuxostat. RSC Adv 2022; 12:2843-2872. [PMID: 35425287 PMCID: PMC8979054 DOI: 10.1039/d1ra08011c] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2021] [Accepted: 01/04/2022] [Indexed: 01/19/2023] Open
Abstract
Xanthine oxidase (XO) has been well-recognized as a validated target for the treatment of hyperuricemia and gout. Currently, there are two drugs in clinical use that shut down XO overactivity, allopurinol and febuxostat; however, detrimental side effects restrict their applications. Propolis is a unique natural adhesive biomass of structurally variable and biologically active metabolites that exert remarkable health benefits. Moreover, combination drug therapy has become a promising pharmacotherapeutic strategy directed for reformulating existing drugs into new combination entities with potentiating therapeutic impacts. In this study, computer-aided molecular docking and MD simulations accompanied by biochemical testing were used for mining novel pharmacologically active chemical entities from Egyptian propolis to combat hyperuricemia. Further, with a view to decrease the potential toxicity of synthetic drugs and enhance efficacy, propolis hits were subjected to combination analysis with each of allopurinol and febuxostat. More specifically, Glide docking was utilized for a structure-based virtual screening of in-house datasets comprising various Egyptian propolis metabolites. Rosmarinic acid, luteolin, techtochrysin and isoferulic acid were the most promising virtual hits. In vitro XO inhibitory assays demonstrated the ability of these hits to significantly inhibit XO in a dose-dependent manner. Molecular docking and MD simulations revealed a cooperative binding mode between the discovered hits and standard XO inhibitors within the active site. Subsequently, the most promising hits were tested in a fixed-ratio combination setting with allopurinol and febuxostat separately to assess their combined effects on XO catalytic inhibition. The binary combination of each techtochrysin and rosmarinic acid with febuxostat displayed maximal synergy at lower effect levels. In contrast, individually, techtochrysin and rosmarinic acid with allopurinol cooperated synergistically at high dose levels. Taken together, the suggested strategy seems imperative to ensure a steady supply of new therapeutic options sourced from Egyptian propolis to regress the development of hyperuricemia. Xanthine oxidase (XO) has been well-recognized as a validated target for the treatment of hyperuricemia and gout.![]()
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Affiliation(s)
- Dina S Ghallab
- Department of Pharmacognosy, Faculty of Pharmacy, Alexandria University Alexandria 21521 Egypt +20-1223821098
| | - Eman Shawky
- Department of Pharmacognosy, Faculty of Pharmacy, Alexandria University Alexandria 21521 Egypt +20-1223821098
| | - Ali M Metwally
- Department of Pharmacognosy, Faculty of Pharmacy, Alexandria University Alexandria 21521 Egypt +20-1223821098
| | - Ismail Celik
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Erciyes University Kayseri 38039 Turkey
| | - Reham S Ibrahim
- Department of Pharmacognosy, Faculty of Pharmacy, Alexandria University Alexandria 21521 Egypt +20-1223821098
| | - Mohamed M Mohyeldin
- Department of Pharmacognosy, Faculty of Pharmacy, Alexandria University Alexandria 21521 Egypt +20-1223821098
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Nehra N, Tittal RK, Ghule VD. 1,2,3-Triazoles of 8-Hydroxyquinoline and HBT: Synthesis and Studies (DNA Binding, Antimicrobial, Molecular Docking, ADME, and DFT). ACS OMEGA 2021; 6:27089-27100. [PMID: 34693129 PMCID: PMC8529673 DOI: 10.1021/acsomega.1c03668] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/12/2021] [Accepted: 09/21/2021] [Indexed: 05/27/2023]
Abstract
A new series of 1,2,3-triazole hybrids containing either 2- or 4-hydroxyphenyl benzothiazole (2- or 4-HBT) and naphthalen-1-ol or 8-hydroxyquinoline (8-HQ) was synthesized in high yields and fully characterized. In vitro DNA binding studies with herring fish sperm DNA (hs-DNA) showed that quinoline- and 2-HBT-linked 1,2,3-triazoles of shorter alkyl linkers such as 6a are better with a high binding affinity (3.90 × 105 L mol-1) with hs-DNA as compared to naphthol- and 4-HBT-linked 1,2,3-triazoles bound to longer alkyl linkers. Molecular docking of most active 1,2,3-triazoles 6a-f showed high binding energy of 6a (-8.7 kcal mol-1). Also, compound 6a displayed considerable antibacterial activity and superior antifungal activity with reference to ciprofloxacin and fluconazole, respectively. The docking results of the fungal enzyme lanosterol 14-α-demethylase showed high binding energy for 6a (-9.7 kcal mol-1) involving dominating H-bonds, electrostatic interaction, and hydrophobic interaction. The absorption, distribution, metabolism, and excretion (ADME) parameter, Molinspiration bioactivity score, and the PreADMET properties revealed that most of the synthesized 1,2,3-triazole molecules possess desirable physicochemical properties for drug-likeness and may be considered as orally active potential drugs. The electrophilicity index and chemical hardness properties were also studied by density functional theory (DFT) using the B3LYP/6-311G(d,p) level/basis set.
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Affiliation(s)
- Nidhi Nehra
- Department of Chemistry, National Institute of Technology Kurukshetra, Kurukshetra, Haryana 136119, India
| | - Ram Kumar Tittal
- Department of Chemistry, National Institute of Technology Kurukshetra, Kurukshetra, Haryana 136119, India
| | - Vikas D. Ghule
- Department of Chemistry, National Institute of Technology Kurukshetra, Kurukshetra, Haryana 136119, India
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