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Ayipo YO, Ahmad I, Chong CF, Zainurin NA, Najib SY, Patel H, Mordi MN. Carbazole derivatives as promising competitive and allosteric inhibitors of human serotonin transporter: computational pharmacology. J Biomol Struct Dyn 2024; 42:993-1014. [PMID: 37021485 DOI: 10.1080/07391102.2023.2198016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2022] [Accepted: 03/25/2023] [Indexed: 04/07/2023]
Abstract
The human serotonin transporters (hSERTs) are neurotransmitter sodium symporters of the aminergic G protein-coupled receptors, regulating the synaptic serotonin and neuropharmacological processes related to neuropsychiatric disorders, notably, depression. Selective serotonin reuptake inhibitors (SSRIs) such as fluoxetine and (S)-citalopram are competitive inhibitors of hSERTs and are commonly the first-line medications for major depressive disorder (MDD). However, treatment-resistance and unpleasant aftereffects constitute their clinical drawbacks. Interestingly, vilazodone emerged with polypharmacological (competitive and allosteric) inhibitions on hSERTs, amenable to improved efficacy. However, its application usually warrants adjuvant/combination therapy, another subject of critical adverse events. Thus, the discovery of alternatives with polypharmacological potentials (one-drug-multiple-target) and improved safety remains essential. In this study, carbazole analogues from chemical libraries were explored using docking and molecular dynamics (MD) simulation. Selectively, two IBScreen ligands, STOCK3S-30866 and STOCK1N-37454 predictively bound to the active pockets and expanded boundaries (extracellular vestibules) of the hSERTs more potently than vilazodone and (S)-citalopram. For instance, the two ligands showed docking scores of -9.52 and -9.59 kcal/mol and MM-GBSA scores of -92.96 and -65.66 kcal/mol respectively compared to vilazodone's respective scores of -7.828 and -59.27 against the central active site of the hSERT (PDB 7LWD). Similarly, the two ligands also docked to the allosteric pocket (PDB 5I73) with scores of -8.15 and -8.40 kcal/mol and MM-GBSA of -96.14 and -68.46 kcal/mol whereas (S)-citalopram has -6.90 and -69.39 kcal/mol respectively. The ligands also conferred conformational stability on the receptors during 100 ns MD simulations and displayed interesting ADMET profiles, representing promising hSERT modulators for MDD upon experimental validation.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Yusuf Oloruntoyin Ayipo
- Centre for Drug Research, Universiti Sains Malaysia, USM, Pulau Pinang, Malaysia
- Department of Chemistry and Industrial Chemistry, Kwara State University, Ilorin, Nigeria
| | - Iqrar Ahmad
- Department of Pharmaceutical Chemistry, Prof Ravindra Nikam College of Pharmacy, Dhule, Maharashtra, India
- Department of Pharmaceutical Chemistry, R C Patel Institute of Pharmaceutical Education and Research, Shirpur, Maharashtra, India
| | - Chien Fung Chong
- Centre for Drug Research, Universiti Sains Malaysia, USM, Pulau Pinang, Malaysia
- Department of Allied Health Sciences, Universiti Tunku Abdul Rahman, Kampar, Perak, Malaysia
| | - Nurul Amira Zainurin
- Faculty of Agro-Based Industry, Universiti Malaysia Kelantan, Jeli, Kelantan, Malaysia
| | - Sani Yahaya Najib
- Centre for Drug Research, Universiti Sains Malaysia, USM, Pulau Pinang, Malaysia
- Department of Pharmaceutical and Medicinal Chemistry, Bayero University, Kano, Nigeria
| | - Harun Patel
- Department of Pharmaceutical Chemistry, R C Patel Institute of Pharmaceutical Education and Research, Shirpur, Maharashtra, India
| | - Mohd Nizam Mordi
- Centre for Drug Research, Universiti Sains Malaysia, USM, Pulau Pinang, Malaysia
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Chen J, Xia Y, Lee S. Transamidation for the Synthesis of Primary Amides at Room Temperature. Org Lett 2020; 22:3504-3508. [DOI: 10.1021/acs.orglett.0c00958] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Jiajia Chen
- Department of Chemistry, Chonnam National University, Gwangju, 61186, Republic of Korea
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, Zhejiang Province 325035, P. R. China
| | - Yuanzhi Xia
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, Zhejiang Province 325035, P. R. China
| | - Sunwoo Lee
- Department of Chemistry, Chonnam National University, Gwangju, 61186, Republic of Korea
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