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Sharma S, Chikhale R, Shinde N, Khan AM, Gupta VK. Targeting dormant phenotype acquired mycobacteria using natural products by exploring its important targets: In vitro and in silico studies. Front Cell Infect Microbiol 2023; 13:1111997. [PMID: 37033483 PMCID: PMC10080046 DOI: 10.3389/fcimb.2023.1111997] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Accepted: 03/06/2023] [Indexed: 04/11/2023] Open
Abstract
The dormant phenotype of Mycobacterium tuberculosis that develops during infection poses a major challenge in disease treatment, since these bacilli show tolerance to front-line drugs. An in vitro hypoxia dormancy model was established, which produced phenotypically dormant Mycobacterium smegmatis after prolonged incubation under conditions of low oxygen, low pH, and nutrient limitation. Bacilli in this model displayed the classical dormancy characters, including loss of acid fastness, altered morphology, and, most importantly, tolerance to front-line drugs. The dormant form of M. smegmatis was treated with drugs and phytomolecules. Three phytomolecules exhibited activity against dormant bacilli, as shown by lack of regrowth in solid and liquid media. Further investigation of dormancy-active hits was carried out using in silico approaches to understand the druggable targets of these phytomolecules in dormant bacilli. For this study, molecular docking, molecular dynamics simulations (MDS), and molecular mechanics-generalized born solvent accessibility (MM-GBSA)-based binding energy (ΔGbind) calculations were performed. Five different targets, namely, isocitrate lyase (ICL), GMP synthase, LuxR, DosR, and serine/threonine protein kinase (STPK), from M. smegmatis and M. tuberculosis were studied in details. DosR and STPK were found to be the common targets in both the species that were more prone to the phytomolecules. The standard DosR inhibitor, HC104A, showed a lower dock score and binding energy of -4.27 and -34.50 kcal/mol, respectively, compared to the natural products under study. The phytomolecule, icariin, showed better docking score (dock score = -5.92 kcal/mol with and binding energy ΔGbind= -52.96 kcal/mol) with DosR compared to known DosR inhibitor, HC104A (dock score = -4.27 kcal/mol and binding energy ΔGbind = -34.50 kcal/mol). Similarly, the known STPK inhibitor MRCT67127 showed a lower dock score and binding energy of -4.25 and -29.43 kcal/mol, respectively, compared to the phytomolecule, icariin (dock score = -5.74 kcal/mol and ΔGbind= -43.41 kcal/mol). These compounds might ultimately lead to new therapeutics or may be useful as adjuvants to the first-line drugs to reduce the lengthy anti-TB therapy in the future.
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Affiliation(s)
- Shweta Sharma
- Department of Biochemistry, ICMR-National JALMA Institute for Leprosy and Other Mycobacterial Diseases, Agra, India
| | - Rupesh Chikhale
- Division of Pharmacy and Optometry, University of Manchester, Manchester, United Kingdom
- Department of Pharmaceutical & Biological Chemistry, School of Pharmacy, University College London, London, United Kingdom
| | - Nivedita Shinde
- Department of Biochemistry, ICMR-National JALMA Institute for Leprosy and Other Mycobacterial Diseases, Agra, India
| | - A M Khan
- Division of Clinical Trials and Implementation Research, ICMR-National JALMA Institute for Leprosy and Other Mycobacterial Diseases, Agra, India
| | - Vivek Kumar Gupta
- Department of Biochemistry, ICMR-National JALMA Institute for Leprosy and Other Mycobacterial Diseases, Agra, India
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Theoretical studies of calixarene derivatives as receptors for transition metals. Chem Phys Lett 2022. [DOI: 10.1016/j.cplett.2022.140210] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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3
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Khetmalis YM, Chitti S, Umarani Wunnava A, Karan Kumar B, Murali Krishna Kumar M, Murugesan S, Chandra Sekhar KVG. Design, synthesis and anti-mycobacterial evaluation of imidazo[1,2- a]pyridine analogues. RSC Med Chem 2022; 13:327-342. [PMID: 35434623 PMCID: PMC8942254 DOI: 10.1039/d1md00367d] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2021] [Accepted: 01/03/2022] [Indexed: 01/05/2023] Open
Abstract
Based on the molecular hybridization strategy, thirty-four imidazo[1,2-a]pyridine amides (IPAs) and imidazo[1,2-a]pyridine sulfonamides (IPSs) were designed and synthesized. The structures of the target compounds were characterized using 1H NMR, 13C NMR, LCMS, and elemental analyses. The synthesized compounds were evaluated in vitro for anti-tubercular activity using the microplate Alamar Blue assay against Mycobacterium tuberculosis H37Rv strain and the MIC was determined. The evaluated compounds exhibited MIC in the range 0.05-≤100 μg mL-1. Among these derivatives, IPA-6 (MIC 0.05 μg mL-1), IPA-9 (MIC 0.4 μg mL-1), and IPS-1 (MIC 0.4 μg mL-1) displayed excellent anti-TB activity, whereas compounds IPA-5, IPA-7 and IPS-16 showed good anti-TB activity (MIC 0.8-3.12 μg mL-1). The most active compounds with MIC of <3.125 μg mL-1 were screened against human embryonic kidney cells to check their cytotoxicity to normal cells. It was observed that these compounds were nontoxic (SI value ≥66). The ADMET characteristics of the final compounds were also predicted in silico. Further, using the Glide module of Schrodinger software, a molecular docking study of IPA-6 was carried out to estimate the binding pattern at the active site of enoyl acyl carrier protein reductase from Mycobacterium tuberculosis (PDB 4TZK). Finally, molecular dynamics simulations were performed for 100 ns to elucidate the stability, conformation, and intermolecular interactions of the co-crystal ligand and significantly active compound IPA-6 on the selected target protein. IPA-6, the most active compound, was found to be 125 times more potent than the standard drug ethambutol (MIC 6.25 μg mL-1).
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Affiliation(s)
- Yogesh Mahadu Khetmalis
- Department of Chemistry, Birla Institute of Technology and Science, Pilani, Hyderabad CampusJawahar NagarHyderabad 500 078TelanganaIndia+91 40 66303527
| | - Surendar Chitti
- Department of Chemistry, Birla Institute of Technology and Science, Pilani, Hyderabad CampusJawahar NagarHyderabad 500 078TelanganaIndia+91 40 66303527
| | - Anjani Umarani Wunnava
- College of Pharmaceutical Sciences, Andhra UniversityVisakhapatnamAndhra Pradesh530 003India
| | - Banoth Karan Kumar
- Medicinal Chemistry Research Laboratory, Department of Pharmacy, Birla Institute of Technology and SciencePilani333031India
| | | | - Sankaranarayanan Murugesan
- Medicinal Chemistry Research Laboratory, Department of Pharmacy, Birla Institute of Technology and SciencePilani333031India
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Prasad MS, Bhole RP, Khedekar PB, Chikhale RV. Mycobacterium enoyl acyl carrier protein reductase (InhA): A key target for antitubercular drug discovery. Bioorg Chem 2021; 115:105242. [PMID: 34392175 DOI: 10.1016/j.bioorg.2021.105242] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2021] [Revised: 07/16/2021] [Accepted: 08/02/2021] [Indexed: 10/20/2022]
Abstract
Enoyl acyl carrier protein reductase (InhA) is a key enzyme involved in fatty acid synthesis mainly mycolic acid biosynthesis that is a part of NADH dependent acyl carrier protein reductase family. The aim of the present literature is to underline the different scaffolds or enzyme inhibitors that inhibit mycolic acid biosynthesis mainly cell wall synthesis by inhibiting enzyme InhA. Various scaffolds were identified based on the screening technologies like high throughput screening, encoded library technology, fragment-based screening. The compounds studied include indirect inhibitors (Isoniazid, Ethionamide, Prothionamide) and direct inhibitors (Triclosan/Diphenyl ethers, Pyrrolidine Carboxamides, Pyrroles, Acetamides, Thiadiazoles, Triazoles) with better efficacy against drug resistance. Out of the several scaffolds studied, pyrrolidine carboxamides were found to be the best molecules targeting InhA having good bioavailability properties and better MIC. This review provides with a detailed information, analysis, structure activity relationship and useful insight on various scaffolds as InhA inhibitors.
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Affiliation(s)
- Mayuri S Prasad
- Department of Pharmaceutical Sciences, Rashtrasant Tukadoji Maharaj Nagpur University, Nagpur 440033, MS, India
| | - Ritesh P Bhole
- Dr. D. Y. Patil Institute of Pharmaceutical Sciences and Research, Pimpri, Pune 411018, Maharashtra, India
| | - Pramod B Khedekar
- Department of Pharmaceutical Sciences, Rashtrasant Tukadoji Maharaj Nagpur University, Nagpur 440033, MS, India.
| | - Rupesh V Chikhale
- UCL School of Pharmacy, 29-39 Brunswick Square, London WC1N 1AX, United Kingdom.
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Shawon J, Khan AM, Shahriar I, Halim MA. Improving the binding affinity and interaction of 5-Pentyl-2-Phenoxyphenol against Mycobacterium Enoyl ACP reductase by computational approach. INFORMATICS IN MEDICINE UNLOCKED 2021. [DOI: 10.1016/j.imu.2021.100528] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
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Li S, Zhang S, Chen D, Jiang X, Liu B, Zhang H, Rachakunta M, Zuo Z. Identification of Novel TRPC5 Inhibitors by Pharmacophore-Based and Structure-Based Approaches. Comput Biol Chem 2020; 87:107302. [PMID: 32554176 DOI: 10.1016/j.compbiolchem.2020.107302] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2020] [Revised: 05/15/2020] [Accepted: 06/02/2020] [Indexed: 01/13/2023]
Abstract
Canonical transient receptor potential-5 (TRPC5), which belongs to the subfamily of transient receptor potential (TRP) channels, is a non-selective cation channel mainly expressed in the central nervous system and shows more restricted expression in the periphery. TRPC5 plays a crucial role in human physiology and pathology, for instance, anxiety, depression, epilepsy, pain, memory and chronic kidney disease (CKD). However, due to lack of the effective and selective inhibitors, its physiological and pathological mechanism remains so far unknown. It is therefore pivotal to identify potential TRPC5 inhibitors. We have applied ligand-based virtual screening (LBVS) and structure-based virtual screening (SBVS) methods. The pharmacophore models of TRPC5 antagonists generated by using the HypoGen and HipHop algorithms were used as a query model for the screening of potential inhibitors against the Specs database. The resultant hits from LBVS were further screened by SBVS. SBVS was carried out based on the homology model generation of human TRPC5, binding site identification, molecular dynamics optimization and molecular docking studies. In our systematic screening approaches, we have identified 7 hits compounds with comparable dock score after Lipinski and Veber rules, ADMET, PAINS analysis, cluster analysis, and similarity analysis. In conclusion, the current research provides novel backbones for the new-generation of TRPC5 inhibitors.
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Affiliation(s)
- Shuxiang Li
- Key Laboratory of Medicinal Chemistry for Natural Resources, Ministry of Education and Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming, China; State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, China
| | - Shuqun Zhang
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, China
| | - Dingyuan Chen
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, China
| | - Xuan Jiang
- Key Laboratory of Medicinal Chemistry for Natural Resources, Ministry of Education and Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming, China
| | - Bin Liu
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, China
| | - Hongbin Zhang
- Key Laboratory of Medicinal Chemistry for Natural Resources, Ministry of Education and Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming, China
| | - Munikishore Rachakunta
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, China
| | - Zhili Zuo
- Key Laboratory of Medicinal Chemistry for Natural Resources, Ministry of Education and Yunnan Province, School of Chemical Science and Technology, Yunnan University, Kunming, China; State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, China.
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Brown AK, Aljohani AKB, Alsalem FMA, Broadhead JL, Gill JH, Lu Y, Sellars JD. Identification of Substituted Amino Acid Hydrazides as Novel Anti-Tubercular Agents, Using a Scaffold Hopping Approach. Molecules 2020; 25:molecules25102387. [PMID: 32455566 PMCID: PMC7287914 DOI: 10.3390/molecules25102387] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2020] [Revised: 05/13/2020] [Accepted: 05/15/2020] [Indexed: 11/21/2022] Open
Abstract
Discovery and development of new therapeutic options for the treatment of Mycobacterium tuberculosis (Mtb) infection, particularly drug-resistant strains, are urgently required to tackle the global burden of this disease. Herein, we reported the synthesis of a novel series of N-substituted amino acid hydrazides, utilising a scaffold hopping approach within a library of anti-tubercular agents. Efficacy and selectivity were evaluated against three strains of Mtb (wild-type, isoniazid-resistant and rifampicin-resistant), and cytotoxicity against macrophages in vitro. The antibacterial activity and therapeutic index of these molecules were significantly affected by modifications with the N-substituents. Introduction of a 3,5-dinitroaryl moiety demonstrated enhanced antibacterial activity against all three strains of Mtb. In contrast, the inclusion of an imidazo [1,2-a]pyridine-3-carboxy moiety resulted in enhanced activity towards isoniazid mono-resistant Mtb relative to wild-type Mtb. Consequently, this scaffold hopping approach showed significant promise for exemplification of novel molecules with specific activity profiles against drug-resistant tuberculosis.
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Affiliation(s)
- Alistair K. Brown
- Biosciences Institute, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne NE2 4HH, UK; (A.K.B.); (A.K.B.A.); (F.M.A.A.); (Y.L.)
| | - Ahmed K. B. Aljohani
- Biosciences Institute, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne NE2 4HH, UK; (A.K.B.); (A.K.B.A.); (F.M.A.A.); (Y.L.)
| | - Fatimah M. A. Alsalem
- Biosciences Institute, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne NE2 4HH, UK; (A.K.B.); (A.K.B.A.); (F.M.A.A.); (Y.L.)
| | | | - Jason H. Gill
- Translational and Clinical Research Institute, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne NE2 4HH, UK;
- School of Pharmacy, Faculty of Medical Sciences, King George VI Building, Newcastle upon Tyne NE1 7RU, UK
| | - Yucheng Lu
- Biosciences Institute, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne NE2 4HH, UK; (A.K.B.); (A.K.B.A.); (F.M.A.A.); (Y.L.)
| | - Jonathan D. Sellars
- Biosciences Institute, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne NE2 4HH, UK; (A.K.B.); (A.K.B.A.); (F.M.A.A.); (Y.L.)
- School of Pharmacy, Faculty of Medical Sciences, King George VI Building, Newcastle upon Tyne NE1 7RU, UK
- Correspondence: ; Tel.: +44-191-2082357
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Manhas A, Dubey S, Jha PC. A profound computational study to prioritize the natural compound inhibitors against the P. falciparum orotidine-5-monophosphate decarboxylase enzyme. J Biomol Struct Dyn 2019; 38:2704-2716. [DOI: 10.1080/07391102.2019.1644197] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Anu Manhas
- School of Chemical Sciences, Central University of Gujarat, Gandhinagar, Gujarat, India
| | - Saikat Dubey
- Centre for Applied Chemistry, Central University of Gujarat, Gandhinagar, Gujarat, India
| | - Prakash C. Jha
- Centre for Applied Chemistry, Central University of Gujarat, Gandhinagar, Gujarat, India
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9
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Manhas A, Patel D, Lone MY, Jha PC. Identification of natural compound inhibitors against PfDXR: A hybrid structure-based molecular modeling approach and molecular dynamics simulation studies. J Cell Biochem 2019; 120:14531-14543. [PMID: 30994966 DOI: 10.1002/jcb.28714] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2018] [Revised: 01/18/2019] [Accepted: 01/24/2019] [Indexed: 12/30/2022]
Abstract
In the present contribution, multicomplex-based pharmacophore studies were carried out on the structural proteome of Plasmodium falciparum 1-deoxy-D-xylulose-5-phosphate reductoisomerase. Among the constructed models, a representative model with complementary features, accountable for the inhibition was used as a primary filter for the screening of database molecules. Auxiliary evaluations of the screened molecules were performed via drug-likeness and molecular docking studies. Subsequently, the stability of the docked inhibitors was envisioned by molecular dynamics simulations, principle component analysis, and molecular mechanics-Poisson-Boltzmann surface area-based free binding energy calculations. The stability assessment of the hits was done by comparing with the reference (beta-substituted fosmidomycin analog, LC5) to prioritize more potent candidates. All the complexes showed stable dynamic behavior while three of them displayed higher binding free energy compared with the reference. The work resulted in the identification of the compounds with diverse scaffolds, which could be used as initial leads for the design of novel PfDXR inhibitors.
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Affiliation(s)
- Anu Manhas
- School of Chemical Sciences, Central University of Gujarat, Gandhinagar, Gujarat, India
| | - Dhaval Patel
- Department of Bioinformatics and Stśructural Biology, Indian Institute of Advanced Research, Gujarat, India
| | - Mohsin Y Lone
- School of Chemical Sciences, Central University of Gujarat, Gandhinagar, Gujarat, India.,Department of Chemistry, Indian Institute of Technology, Gandhinagar, Gujarat, India
| | - Prakash C Jha
- Centre for Applied Chemistry, Central University of Gujarat, Gandhinagar, Gujarat, India
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Manhas A, Lone MY, Jha PC. Multicomplex-based pharmacophore modeling in conjunction with multi-target docking and molecular dynamics simulations for the identification of PfDHFR inhibitors. J Biomol Struct Dyn 2019; 37:4181-4199. [DOI: 10.1080/07391102.2018.1540362] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Anu Manhas
- School of Chemical Sciences, Central University of Gujarat, Gandhinagar, Gujarat, India
| | - Mohsin Y. Lone
- School of Chemical Sciences, Central University of Gujarat, Gandhinagar, Gujarat, India
- Department of Chemistry, Indian Institute of Technology Gandhinagar, Gandhinagar, Gujarat, India
| | - Prakash C. Jha
- Centre for Applied Chemistry, Central University of Gujarat, Gandhinagar, Gujarat, India
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Manhas A, Lone MY, Jha PC. In search of the representative pharmacophore hypotheses of the enzymatic proteome of Plasmodium falciparum: a multicomplex-based approach. Mol Divers 2018; 23:453-470. [DOI: 10.1007/s11030-018-9885-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2018] [Accepted: 10/06/2018] [Indexed: 01/17/2023]
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12
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Li Y, Peng J, Zhou Y, Li P, Li Y, Liu X, Siddique AN, Zhang L, Zuo Z. Pharmacophore modeling, molecular docking and molecular dynamics simulations toward identifying lead compounds for Chk1. Comput Biol Chem 2018; 76:53-60. [DOI: 10.1016/j.compbiolchem.2018.06.001] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2018] [Revised: 05/29/2018] [Accepted: 06/03/2018] [Indexed: 10/14/2022]
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Manhas A, Patel A, Lone MY, Jha PK, Jha PC. Identification of
Pf
ENR inhibitors: A hybrid structure‐based approach in conjunction with molecular dynamics simulations. J Cell Biochem 2018; 119:8490-8500. [DOI: 10.1002/jcb.27075] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2018] [Accepted: 04/26/2018] [Indexed: 01/31/2023]
Affiliation(s)
- Anu Manhas
- School of Chemical Sciences Central University of Gujarat Gandhinagar Gujarat India
| | - Anjali Patel
- Department of Physics M. S. University of Baroda Vadodara Gujarat India
| | - Mohsin Y. Lone
- School of Chemical Sciences Central University of Gujarat Gandhinagar Gujarat India
- Department of Chemistry Indian Institute of Technology Gandhinagar Gujarat India
| | - Prafulla K. Jha
- Department of Physics M. S. University of Baroda Vadodara Gujarat India
| | - Prakash C. Jha
- Centre for Applied Chemistry Central University of Gujarat Gandhinagar Gujarat India
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Modi P, Patel S, Chhabria MT. Identification of some novel pyrazolo[1,5-a]pyrimidine derivatives as InhA inhibitors through pharmacophore-based virtual screening and molecular docking. J Biomol Struct Dyn 2018; 37:1736-1749. [PMID: 29663870 DOI: 10.1080/07391102.2018.1465852] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
The InhA inhibitors play key role in mycolic acid synthesis by preventing the fatty acid biosynthesis pathway. In this present article, Pharmacophore modelling and molecular docking study followed by in silico virtual screening could be considered as effective strategy to identify newer enoyl-ACP reductase inhibitors. Pyrrolidine carboxamide derivatives were opted to generate pharmacophore models using HypoGen algorithm in Discovery studio 2.1. Further it was employed to screen Zinc and Minimaybridge databases to identify and design newer potent hit molecules. The retrieved newer hits were further evaluated for their drug likeliness and docked against enoyl acyl carrier protein reductase. Here, novel pyrazolo[1,5-a]pyrimidine analogues were designed and synthesized with good yields. Structural elucidation of synthesized final molecules was perform through IR, MASS, 1H-NMR, 13C-NMR spectroscopy and further tested for its in vitro anti-tubercular activity against H37Rv strain using Microplate Alamar blue assay (MABA) method. Most of the synthesized compounds displayed strong anti-tubercular activities. Further, these potent compounds were gauged for MDR-TB, XDR-TB and cytotoxic study.
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Affiliation(s)
- Palmi Modi
- a Department of Pharmaceutical Chemistry , L. M. College of Pharmacy , Ahmedabad 380009 , Gujarat , India.,b Department of Pharmacy , Dharmsinh Desai University , Nadiad 387001 , Gujarat , India
| | - Shivani Patel
- a Department of Pharmaceutical Chemistry , L. M. College of Pharmacy , Ahmedabad 380009 , Gujarat , India.,c Division of Biological and Life Sciences , Ahmedabad University , Ahmedabad 380009 , Gujarat , India
| | - Mahesh T Chhabria
- a Department of Pharmaceutical Chemistry , L. M. College of Pharmacy , Ahmedabad 380009 , Gujarat , India
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Patel S, Modi P, Chhabria M. Rational approach to identify newer caspase-1 inhibitors using pharmacophore based virtual screening, docking and molecular dynamic simulation studies. J Mol Graph Model 2018; 81:106-115. [DOI: 10.1016/j.jmgm.2018.02.017] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2017] [Revised: 01/11/2018] [Accepted: 02/18/2018] [Indexed: 10/17/2022]
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16
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Wang N, Ren JX, Xie Y. Identification of novel DHFR inhibitors for treatment of tuberculosis by combining virtual screening with in vitro activity assay. J Biomol Struct Dyn 2018; 37:1054-1061. [DOI: 10.1080/07391102.2018.1448721] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Affiliation(s)
- Nan Wang
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Medicinal Plant Development, Chinese Academy of Medical Science, Peking Union Medical College, 151 Malianwa North Road, Haidian District, Beijing 100193, PR China
| | - Ji-Xia Ren
- College of Life Science, Liaocheng University, Liaocheng 252059, PR China
| | - Yong Xie
- College of Life Science, Liaocheng University, Liaocheng 252059, PR China
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17
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Exploration of Mycobacterium tuberculosis structural proteome: An in-silico approach. J Theor Biol 2018; 439:14-23. [DOI: 10.1016/j.jtbi.2017.11.021] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2016] [Revised: 07/19/2017] [Accepted: 11/28/2017] [Indexed: 12/20/2022]
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Lone MY, Manhas A, Athar M, Jha PC. Identification of InhA inhibitors: A combination of virtual screening, molecular dynamics simulations and quantum chemical studies. J Biomol Struct Dyn 2017; 36:2951-2965. [DOI: 10.1080/07391102.2017.1372313] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Mohsin Y. Lone
- School of Chemical Sciences, Central University of Gujarat, Gandhinagar 382030, Gujarat, India
| | - Anu Manhas
- School of Chemical Sciences, Central University of Gujarat, Gandhinagar 382030, Gujarat, India
| | - Mohd. Athar
- School of Chemical Sciences, Central University of Gujarat, Gandhinagar 382030, Gujarat, India
| | - Prakash C. Jha
- Centre for Applied Chemistry, Central University of Gujarat, Gandhinagar 382030, Gujarat, India
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Lone MY, Athar M, Gupta VK, Jha PC. Prioritization of natural compounds against mycobacterium tuberculosis 3-dehydroquinate dehydratase: A combined in-silico and in-vitro study. Biochem Biophys Res Commun 2017; 491:1105-1111. [DOI: 10.1016/j.bbrc.2017.08.020] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2017] [Accepted: 08/04/2017] [Indexed: 12/18/2022]
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