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Chandel P, Thapa K, Kanojia N, Rani L, Singh TG, Rohilla P. Exploring Therapeutic Potential of Phytoconstituents as a Gut Microbiota Modulator in the Management of Neurological and Psychological Disorders. Neuroscience 2024; 551:69-78. [PMID: 38754721 DOI: 10.1016/j.neuroscience.2024.05.002] [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: 02/16/2024] [Accepted: 05/02/2024] [Indexed: 05/18/2024]
Abstract
The functioning of the brain and its impact on behavior, emotions, and cognition can be affected by both neurological and psychiatric disorders that impose a significant burden on global health. Phytochemicals are helpful in the treatment of several neurological and psychological disorders, including anxiety, depression, Huntington's disease (HD), Parkinson's disease (PD), Alzheimer's disease (AD), and autism spectrum disorder (ASD), because they have symptomatic benefits with few adverse reactions. Changes in gut microbiota have been associated with many neurological and psychiatric conditions. This review focuses on the potential efficacy of phytochemicals such as flavonoids, terpenoids, and polyphenols in regulating gut flora and providing symptomatic relief for a range of neurological and psychological conditions. Evidence-based research has shown the medicinal potentials of these phytochemicals, but additional study is required to determine whether altering gut microbiota might slow the advancement of neurological and psychological problems.
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Affiliation(s)
- Prarit Chandel
- Chitkara University, School of Pharmacy, Himachal Pradesh, India
| | - Komal Thapa
- Chitkara University, School of Pharmacy, Himachal Pradesh, India.
| | - Neha Kanojia
- Chitkara University, School of Pharmacy, Himachal Pradesh, India
| | - Lata Rani
- Chitkara University, School of Pharmacy, Himachal Pradesh, India
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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: 6] [Impact Index Per Article: 6.0] [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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Ge Y, Zhang C, Qu Y, Ding L, Zhang X, Zhang Z, Jin C, Wang XN, Wang Z. Synthesis and pharmacodynamic evaluation of naphthalene derivatives against influenza A virus in vitro and in vivo. Eur J Med Chem 2023; 259:115660. [PMID: 37517205 DOI: 10.1016/j.ejmech.2023.115660] [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: 04/19/2023] [Revised: 07/12/2023] [Accepted: 07/16/2023] [Indexed: 08/01/2023]
Abstract
Influenza A virus is a highly mutable pathogenic pathogen that could cause a global pandemic. It is necessary to find new anti-influenza drugs to resist influenza epidemics due to the seasonal popularity of a certain area every year. Naphthalene derivatives had potential antiviral activity. A series of naphthalene derivatives were synthesized via the metal-free intramolecular hydroarylation reactions of alkynes. Evaluation of their biological efficacy showed that compound 2-aminonaphthalene 4d had better antiviral activity in vitro than ribavirin. By studying the mechanism of action of 2-aminonaphthalene 4din vivo and in vitro, we found that 4d had antiviral activity to three different subtype influenza viruses of A/Weiss/43 (H1N1), A/Virginia/ATCC2/2009 (H1N1) and A/California/2/2014 (H3N2). Compound 4d had the best effect after viral adsorption, and mainly played in the early stage of virus replication. 2-Aminonaphthalene 4d could reduce the replication of virus by inhibiting the NP and M proteins of virus. Compound 4d cut down ROS accumulation, autophagy and apoptosis induced by influenza virus. Inflammatory response mediated by RIG-1 pathway were suppressed in the cell and mice. In addition, the pathological changes of lung tissue and virus titer in mice were reduced by the administration of 4d. Therefore, naphthalene derivative 4d is a potential drug for the treatment of influenza A virus infection.
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Affiliation(s)
- Yongzhuang Ge
- Collaborative Innovation Center of New Drug Research and Safety Evaluation, Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education, Key Laboratory of "Runliang" Antiviral Medicines Research and Development, Institute of Drug Discovery & Development, School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou 450001, China
| | - Chaofeng Zhang
- Collaborative Innovation Center of New Drug Research and Safety Evaluation, Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education, Key Laboratory of "Runliang" Antiviral Medicines Research and Development, Institute of Drug Discovery & Development, School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou 450001, China
| | - Ying Qu
- Collaborative Innovation Center of New Drug Research and Safety Evaluation, Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education, Key Laboratory of "Runliang" Antiviral Medicines Research and Development, Institute of Drug Discovery & Development, School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou 450001, China
| | - Lixia Ding
- Collaborative Innovation Center of New Drug Research and Safety Evaluation, Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education, Key Laboratory of "Runliang" Antiviral Medicines Research and Development, Institute of Drug Discovery & Development, School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou 450001, China
| | - Xinbo Zhang
- Collaborative Innovation Center of New Drug Research and Safety Evaluation, Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education, Key Laboratory of "Runliang" Antiviral Medicines Research and Development, Institute of Drug Discovery & Development, School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou 450001, China
| | - Zhongmou Zhang
- Collaborative Innovation Center of New Drug Research and Safety Evaluation, Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education, Key Laboratory of "Runliang" Antiviral Medicines Research and Development, Institute of Drug Discovery & Development, School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou 450001, China
| | - Chengyun Jin
- Collaborative Innovation Center of New Drug Research and Safety Evaluation, Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education, Key Laboratory of "Runliang" Antiviral Medicines Research and Development, Institute of Drug Discovery & Development, School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou 450001, China
| | - Xiao-Na Wang
- Collaborative Innovation Center of New Drug Research and Safety Evaluation, Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education, Key Laboratory of "Runliang" Antiviral Medicines Research and Development, Institute of Drug Discovery & Development, School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou 450001, China.
| | - Zhenya Wang
- Collaborative Innovation Center of New Drug Research and Safety Evaluation, Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education, Key Laboratory of "Runliang" Antiviral Medicines Research and Development, Institute of Drug Discovery & Development, School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou 450001, China.
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Zhu R, Jiang G, Tang W, Zhao X, Chen F, Zhang X, Ye N. Aporphines: A privileged scaffold in CNS drug discovery. Eur J Med Chem 2023; 256:115414. [PMID: 37172474 DOI: 10.1016/j.ejmech.2023.115414] [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: 03/02/2023] [Revised: 04/21/2023] [Accepted: 04/22/2023] [Indexed: 05/15/2023]
Abstract
Aporphine alkaloids embedded in 4H-dibenzo[de,g]quinoline four-ring structures belong to one of the largest subclasses of isoquinoline alkaloids. Aporphine is a privileged scaffold in the field of organic synthesis and medicinal chemistry for the discovery of new therapeutic agents for central nervous system (CNS) diseases, cancer, metabolic syndrome, and other diseases. In the past few decades, aporphine has attracted continuing interest to be widely used to develop selective or multitarget directed ligands (MTDLs) targeting the CNS (e.g., dopamine D1/2/5, serotonin 5-HT1A/2A/2C and 5-HT7, adrenergic α/β receptors, and cholinesterase enzymes), thereby serving as valuable pharmacological probes for mechanism studies or as potential leads for CNS drug discovery. The aims of the present review are to highlight the diverse CNS activities of aporphines, discuss their SAR, and briefly summarize general synthetic routes, which will pave the way for the design and development of new aporphine derivatives as promising CNS active drugs in the future.
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Affiliation(s)
- Rongfeng Zhu
- Department of Medicinal Chemistry, Jiangsu Key Laboratory of Neuropsychiatric Diseases and College of Pharmaceutical Sciences, Soochow University, Suzhou, Jiangsu, 215123, China
| | - Guangqian Jiang
- Department of Medicinal Chemistry, Jiangsu Key Laboratory of Neuropsychiatric Diseases and College of Pharmaceutical Sciences, Soochow University, Suzhou, Jiangsu, 215123, China
| | - Wanyu Tang
- Department of Medicinal Chemistry, Jiangsu Key Laboratory of Neuropsychiatric Diseases and College of Pharmaceutical Sciences, Soochow University, Suzhou, Jiangsu, 215123, China
| | - Xiaobao Zhao
- Department of Medicinal Chemistry, Jiangsu Key Laboratory of Neuropsychiatric Diseases and College of Pharmaceutical Sciences, Soochow University, Suzhou, Jiangsu, 215123, China
| | - Fan Chen
- Department of Medicinal Chemistry, Jiangsu Key Laboratory of Neuropsychiatric Diseases and College of Pharmaceutical Sciences, Soochow University, Suzhou, Jiangsu, 215123, China
| | - Xiaoya Zhang
- Department of Medicinal Chemistry, Jiangsu Key Laboratory of Neuropsychiatric Diseases and College of Pharmaceutical Sciences, Soochow University, Suzhou, Jiangsu, 215123, China
| | - Na Ye
- Department of Medicinal Chemistry, Jiangsu Key Laboratory of Neuropsychiatric Diseases and College of Pharmaceutical Sciences, Soochow University, Suzhou, Jiangsu, 215123, China.
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Namballa HK, Madapa S, Sigalapalli DK, Harding WW. Semisynthetic Transformations on (+)-Boldine Reveal a 5-HT 2A/2CR Antagonist. JOURNAL OF NATURAL PRODUCTS 2022; 85:2149-2158. [PMID: 36001775 DOI: 10.1021/acs.jnatprod.2c00365] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Aporphine alkaloids have shown affinity for serotonin receptors (5-HTRs), and there has been a recent upsurge of interest in aporphines as 5-HT2CR ligands. 1,2,9,10-Tetraoxygenated aporphine alkaloids in particular have demonstrated good affinity for 5-HTRs. In continued efforts to understand the impacts of structural modification of the 1,2,9,10-tetraoxygenated aporphine template on affinity, selectivity, and activity at 5-HT2R subtypes, we used (+)-boldine (8) as a semisynthetic feedstock in the preparation of C-2-alkoxylated (+)-predicentrine analogues. Compound 10n, which contains a benzyloxy group at C-2, has been identified as a novel 5-HT2CR ligand with strong affinity (4 nM) and moderate selectivity versus 5-HT2BR and 5-HT2AR (12-fold and 6-fold, respectively). Compound 10n functions as an antagonist at 5-HT2A and 5-HT2C receptors. Computational experiments indicate that several hydrophobic interactions as well as strong H-bond and salt bridge interactions between the protonated amine moiety in 10n and Asp134 are responsible for the potent 5-HT2CR affinity of this compound. Furthermore, compound 10n displays favorable predicted drug-like characteristics, which is encouraging toward future optimization.
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Affiliation(s)
- Hari K Namballa
- Department of Chemistry, Hunter College, City University of New York, 695 Park Avenue, New York, New York 10065, United States
| | - Sudharshan Madapa
- Department of Chemistry, Hunter College, City University of New York, 695 Park Avenue, New York, New York 10065, United States
| | - Dilep K Sigalapalli
- Department of Pharmaceutical Chemistry, Vignan Pharmacy College, Jawaharlal Nehru Technological University, Vadlamudi 522213, Andhra Pradesh, India
| | - Wayne W Harding
- Department of Chemistry, Hunter College, City University of New York, 695 Park Avenue, New York, New York 10065, United States
- Ph.D. Program in Biochemistry, CUNY Graduate Center, 365 5th Avenue, New York, New York 10016, United States
- Ph.D. Program in Chemistry, CUNY Graduate Center, 365 5th Avenue, New York, New York 10016, United States
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Garcia CS, Besckow EM, da Silva Espíndola CN, D’Avila Nunes G, Zuge NP, de Azeredo MP, Rocha MJD, Carraro Junior LR, Penteado F, Gomes CS, Lenardão EJ, Bortolatto CF, Brüning CA. Antidepressant-Like Effect of a Selenoindolizine in Mice: In Vivo and In Silico Evidence for the Involvement of the Serotonergic 5-HT 2A/C Receptors. ACS Chem Neurosci 2022; 13:1746-1755. [PMID: 35605134 DOI: 10.1021/acschemneuro.2c00129] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
The monoaminergic dysfunction plays a central role in major depressive disorder (MDD), a mental disturbance associated with constant feeling of sadness and lack of interest. The available treatments do not present a desirable efficacy and some of them provoke several adverse effects. In this context, organoselenium compounds and molecules containing the indolizine nucleus have demonstrated interesting pharmacological properties, including antidepressant-like effects. In this study, the antidepressant-like effect of 2-phenyl-1-(phenylselanyl)indolizine (SeI), a selenium-containing indolizine derivative, was investigated on the forced swimming test (FST) and on the tail suspension test (TST) in male Swiss mice. The involvement of the serotonergic system in this effect was also accessed. The selenium compound SeI (10-100 mg/kg, intragastrical (i.g.)) was administered 0.5 h before the behavioral tests, and it diminished the immobility on both FST and TST experiments, which is an indication of antidepressant-like effect. No changing in the locomotor motion was observed in the open-field test (OFT). The anti-immobility effect of SeI was not altered by the preadministration of the selective serotonergic receptor antagonists ondansetron (1 mg/kg, intraperitoneally (i.p.), antagonist of 5-HT3 receptor) and WAY100635 (0.1 mg/kg, subcutaneous route (s.c.), antagonist of 5-HT1A receptor). In contrast, the preadministration of ketanserin (1 mg/kg, i.p., antagonist of 5-HT2A/C receptor) blocked this effect, demonstrating that the antidepressant-like effect of SeI involves 5-HT2A/C. In addition, molecular docking studies showed a strong interaction between SeI and the receptors of 5-HT2A and 5-HT2C. The toxicological results demonstrated that SeI has low potential to cause adverse effects in mice. It was found that the antidepressant-like effect of SeI is related to modulation of the serotonergic system, and this selenium compound could be included in new treatment approaches for MDD.
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Affiliation(s)
- Cleisson Schossler Garcia
- Laboratory of Biochemistry and Molecular Neuropharmacology (LABIONEM), Postgraduate Program in Biochemistry and Bioprospecting (PPGBBio), Center of Chemical, Pharmaceutical and Food Sciences (CCQFA), Federal University of Pelotas (UFPel), P.O. Box, 354, Pelotas, 96010-900 RS, Brazil
| | - Evelyn Mianes Besckow
- Laboratory of Biochemistry and Molecular Neuropharmacology (LABIONEM), Postgraduate Program in Biochemistry and Bioprospecting (PPGBBio), Center of Chemical, Pharmaceutical and Food Sciences (CCQFA), Federal University of Pelotas (UFPel), P.O. Box, 354, Pelotas, 96010-900 RS, Brazil
| | - Carlos Natã da Silva Espíndola
- Laboratory of Biochemistry and Molecular Neuropharmacology (LABIONEM), Postgraduate Program in Biochemistry and Bioprospecting (PPGBBio), Center of Chemical, Pharmaceutical and Food Sciences (CCQFA), Federal University of Pelotas (UFPel), P.O. Box, 354, Pelotas, 96010-900 RS, Brazil
| | - Gustavo D’Avila Nunes
- Laboratory of Biochemistry and Molecular Neuropharmacology (LABIONEM), Postgraduate Program in Biochemistry and Bioprospecting (PPGBBio), Center of Chemical, Pharmaceutical and Food Sciences (CCQFA), Federal University of Pelotas (UFPel), P.O. Box, 354, Pelotas, 96010-900 RS, Brazil
| | - Narryman Pinto Zuge
- Laboratory of Biochemistry and Molecular Neuropharmacology (LABIONEM), Postgraduate Program in Biochemistry and Bioprospecting (PPGBBio), Center of Chemical, Pharmaceutical and Food Sciences (CCQFA), Federal University of Pelotas (UFPel), P.O. Box, 354, Pelotas, 96010-900 RS, Brazil
| | - Marcos Pizzatto de Azeredo
- Laboratory of Biochemistry and Molecular Neuropharmacology (LABIONEM), Postgraduate Program in Biochemistry and Bioprospecting (PPGBBio), Center of Chemical, Pharmaceutical and Food Sciences (CCQFA), Federal University of Pelotas (UFPel), P.O. Box, 354, Pelotas, 96010-900 RS, Brazil
| | - Marcia Juciele da Rocha
- Laboratory of Biochemistry and Molecular Neuropharmacology (LABIONEM), Postgraduate Program in Biochemistry and Bioprospecting (PPGBBio), Center of Chemical, Pharmaceutical and Food Sciences (CCQFA), Federal University of Pelotas (UFPel), P.O. Box, 354, Pelotas, 96010-900 RS, Brazil
| | - Luiz Roberto Carraro Junior
- Laboratory of Biochemistry and Molecular Neuropharmacology (LABIONEM), Postgraduate Program in Biochemistry and Bioprospecting (PPGBBio), Center of Chemical, Pharmaceutical and Food Sciences (CCQFA), Federal University of Pelotas (UFPel), P.O. Box, 354, Pelotas, 96010-900 RS, Brazil
| | - Filipe Penteado
- Laboratory of Clean Organic Synthesis (LASOL), Center of Chemical, Pharmaceutical and Food Sciences (CCQFA), Federal University of Pelotas (UFPel), P.O. Box, 354, Pelotas, 96010-900 RS, Brazil
| | - Caroline Signorini Gomes
- Laboratory of Clean Organic Synthesis (LASOL), Center of Chemical, Pharmaceutical and Food Sciences (CCQFA), Federal University of Pelotas (UFPel), P.O. Box, 354, Pelotas, 96010-900 RS, Brazil
| | - Eder João Lenardão
- Laboratory of Clean Organic Synthesis (LASOL), Center of Chemical, Pharmaceutical and Food Sciences (CCQFA), Federal University of Pelotas (UFPel), P.O. Box, 354, Pelotas, 96010-900 RS, Brazil
| | - Cristiani Folharini Bortolatto
- Laboratory of Biochemistry and Molecular Neuropharmacology (LABIONEM), Postgraduate Program in Biochemistry and Bioprospecting (PPGBBio), Center of Chemical, Pharmaceutical and Food Sciences (CCQFA), Federal University of Pelotas (UFPel), P.O. Box, 354, Pelotas, 96010-900 RS, Brazil
| | - César Augusto Brüning
- Laboratory of Biochemistry and Molecular Neuropharmacology (LABIONEM), Postgraduate Program in Biochemistry and Bioprospecting (PPGBBio), Center of Chemical, Pharmaceutical and Food Sciences (CCQFA), Federal University of Pelotas (UFPel), P.O. Box, 354, Pelotas, 96010-900 RS, Brazil
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Aloe arborescens: In Vitro Screening of Genotoxicity, Effective Inhibition of Enzyme Characteristics for Disease Etiology, and Microbiological Activity. Molecules 2022; 27:molecules27072323. [PMID: 35408722 PMCID: PMC9000289 DOI: 10.3390/molecules27072323] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2022] [Revised: 03/30/2022] [Accepted: 03/31/2022] [Indexed: 01/22/2023] Open
Abstract
The present study assessed the genotoxicity, the possibility of inhibiting selected enzymes, and the microbial activity of lyophilisate from 3-year-old A. arborescens leaves obtained from controlled crops. The lyophilisate from 3-year-old A. arborescens leaves was standardized for aloin A and aloenin A content. Moreover, concentrations of polyphenolic compounds and phenolic acids were determined. The first stage of the research was to determine genotoxicity using the comet test, which confirmed the safety of A. arborescens. Assays of enzymatic inhibition were performed for hyaluronidase (IC50 = 713.24 ± 41.79 µg/mL), α-glucosidase (IC50 = 598.35 ± 12.58 µg/mL), acetylcholinesterase and butyrylcholinesterase (1.16 vs. 0.34 µM of eserine/g d.m., respectively). The next stage of the research was to determine the ability of the healing properties using the scratch test, which showed a positive response using the extract. Microbial activity was evaluated and obtained against Gram-negative and Gram-positive bacteria and yeasts. We concluded that A. arborescens leaf gel meets the important conditions for plant raw materials to obtain semi-solid forms of herbal medicinal products.
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Mao Q, Zhang B, Tian S, Qin W, Chen J, Huang XP, Xin Y, Yang H, Zhen XC, Shui W, Ye N. Structural optimizations and bioevaluation of N-H aporphine analogues as Gq-biased and selective serotonin 5-HT2C receptor agonists. Bioorg Chem 2022; 123:105795. [DOI: 10.1016/j.bioorg.2022.105795] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2021] [Revised: 03/31/2022] [Accepted: 04/05/2022] [Indexed: 11/29/2022]
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Fungal Naphthalenones; Promising Metabolites for Drug Discovery: Structures, Biosynthesis, Sources, and Pharmacological Potential. Toxins (Basel) 2022; 14:toxins14020154. [PMID: 35202181 PMCID: PMC8879409 DOI: 10.3390/toxins14020154] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2022] [Revised: 02/15/2022] [Accepted: 02/16/2022] [Indexed: 12/10/2022] Open
Abstract
Fungi are well-known for their abundant supply of metabolites with unrivaled structure and promising bioactivities. Naphthalenones are among these fungal metabolites, that are biosynthesized through the 1,8-dihydroxy-naphthalene polyketide pathway. They revealed a wide spectrum of bioactivities, including phytotoxic, neuro-protective, cytotoxic, antiviral, nematocidal, antimycobacterial, antimalarial, antimicrobial, and anti-inflammatory. The current review emphasizes the reported naphthalenone derivatives produced by various fungal species, including their sources, structures, biosynthesis, and bioactivities in the period from 1972 to 2021. Overall, more than 167 references with 159 metabolites are listed.
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Lu Y, Liu H, Yang D, Zhong L, Xin Y, Zhao S, Wang MW, Zhou Q, Shui W. Affinity Mass Spectrometry-Based Fragment Screening Identified a New Negative Allosteric Modulator of the Adenosine A 2A Receptor Targeting the Sodium Ion Pocket. ACS Chem Biol 2021; 16:991-1002. [PMID: 34048655 DOI: 10.1021/acschembio.0c00899] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Allosteric ligands provide new opportunities to modulate G protein-coupled receptor (GPCR) function and present therapeutic benefits over orthosteric molecules. Negative allosteric modulators (NAMs) can inhibit the activation of a receptor and downstream signal transduction. Screening NAMs for a GPCR target is particularly challenging because of the difficulty in distinguishing NAMs from antagonists bound to the orthosteric site as they both show inhibitory effects in receptor signaling assays. Here we report an affinity mass spectrometry (MS)-based approach tailored to screening potential NAMs of a GPCR target especially from fragment libraries. Compared to regular surface plasmon resonance or NMR-based methods for fragment screening, our approach features a reduction of the protein and compound consumption by 2-4 orders of magnitude and an increase in the data acquisition speed by 2-3 orders of magnitude. Our affinity MS-based fragment screening led to the identification of a new NAM of the adenosine A2A receptor (A2AAR) bearing an unprecedented azetidine moiety predicted to occupy the allosteric sodium binding site. Molecular dynamics simulations, ligand structure-activity relationship (SAR) studies, and in-solution NMR analyses further revealed the unique binding mode and antagonistic property of this compound that differs considerably from HMA (5-(N,N-hexamethylene)amiloride), a well-characterized NAM of A2AAR. Taken together, our work would facilitate fragment-based screening of allosteric modulators, as well as guide the design of novel NAMs acting at the sodium ion pocket of class A GPCRs.
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Affiliation(s)
- Yan Lu
- iHuman Institute, ShanghaiTech University, Shanghai 201210, China
- School of Life Science and Technology, ShanghaiTech University, Shanghai 201210, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Hongyue Liu
- iHuman Institute, ShanghaiTech University, Shanghai 201210, China
- School of Life Science and Technology, ShanghaiTech University, Shanghai 201210, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Dehua Yang
- The National Center for Drug Screening and the CAS Key Laboratory of Receptor Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
| | - Li Zhong
- The National Center for Drug Screening and the CAS Key Laboratory of Receptor Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
| | - Ye Xin
- iHuman Institute, ShanghaiTech University, Shanghai 201210, China
- School of Life Science and Technology, ShanghaiTech University, Shanghai 201210, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Suwen Zhao
- iHuman Institute, ShanghaiTech University, Shanghai 201210, China
- School of Life Science and Technology, ShanghaiTech University, Shanghai 201210, China
| | - Ming-Wei Wang
- School of Life Science and Technology, ShanghaiTech University, Shanghai 201210, China
- University of Chinese Academy of Sciences, Beijing 100049, China
- The National Center for Drug Screening and the CAS Key Laboratory of Receptor Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
- School of Pharmacy, Fudan University, Shanghai 201203, China
- School of Basic Medical Sciences, Fudan University, Shanghai 200032, China
| | - Qingtong Zhou
- School of Basic Medical Sciences, Fudan University, Shanghai 200032, China
| | - Wenqing Shui
- iHuman Institute, ShanghaiTech University, Shanghai 201210, China
- School of Life Science and Technology, ShanghaiTech University, Shanghai 201210, China
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Chung JY, Jeong JH, Song J. Resveratrol Modulates the Gut-Brain Axis: Focus on Glucagon-Like Peptide-1, 5-HT, and Gut Microbiota. Front Aging Neurosci 2020; 12:588044. [PMID: 33328965 PMCID: PMC7732484 DOI: 10.3389/fnagi.2020.588044] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2020] [Accepted: 10/23/2020] [Indexed: 12/12/2022] Open
Abstract
Resveratrol is a natural polyphenol that has anti-aging and anti-inflammatory properties against stress condition. It is reported that resveratrol has beneficial functions in various metabolic and central nervous system (CNS) diseases, such as obesity, diabetes, depression, and dementia. Recently, many researchers have emphasized the connection between the brain and gut, called the gut-brain axis, for treating both CNS neuropathologies and gastrointestinal diseases. Based on previous findings, resveratrol is involved in glucagon-like peptide 1 (GLP-1) secreted by intestine L cells, the patterns of microbiome in the intestine, the 5-hydroxytryptamine (5-HT) level, and CNS inflammation. Here, we review recent evidences concerning the relevance and regulatory function of resveratrol in the gut-brain axis from various perspectives. Here, we highlight the necessity for further study on resveratrol's specific mechanism in the gut-brain axis. We present the potential of resveratrol as a natural therapeutic substance for treating both neuropathology and gastrointestinal dysfunction.
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Affiliation(s)
- Ji Yeon Chung
- Department of Neurology, Chosun University Medical School, Gwangju, South Korea
| | - Jae-Ho Jeong
- Department of Microbiology, Chonnam National University Medical School, Gwangju, South Korea
| | - Juhyun Song
- Department of Anatomy, Chonnam National University Medical School, Gwangju, South Korea
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12
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Hothersall JD, Jones AY, Dafforn TR, Perrior T, Chapman KL. Releasing the technical 'shackles' on GPCR drug discovery: opportunities enabled by detergent-free polymer lipid particle (PoLiPa) purification. Drug Discov Today 2020; 25:S1359-6446(20)30337-8. [PMID: 32835806 DOI: 10.1016/j.drudis.2020.08.006] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2020] [Revised: 07/04/2020] [Accepted: 08/13/2020] [Indexed: 12/19/2022]
Abstract
G-protein-coupled receptor (GPCR) drug research is presently hindered by the technical challenges associated with generating purified receptors. Consequently, the application of critical modern discovery technologies has been limited, and the vast untapped opportunity for new GPCR-directed medicines is not being realised. A simple but transformative solution is to purify receptors without removing them from their native phospholipid environment by using polymer lipid particle (PoLiPa) technology, with reagents such as styrene-maleic acid co-polymer (SMA). Compared with contemporary detergent-based and stabilising mutagenesis methods, the PoLiPa approach is simple and generic and, therefore, offers huge advantages, with the potential to revolutionise GPCR research by facilitating the availability of the purified receptors that are required for structural biology, biophysical, and panning technologies.
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Affiliation(s)
- J Daniel Hothersall
- Domainex Ltd, Chesterford Research Park, Little Chesterford, Saffron Walden, CB10 1XL, UK.
| | - Andrew Y Jones
- Domainex Ltd, Chesterford Research Park, Little Chesterford, Saffron Walden, CB10 1XL, UK
| | - Tim R Dafforn
- School of Biosciences, University of Birmingham, Edgbaston, Birmingham, B15 2TT, UK
| | - Trevor Perrior
- Domainex Ltd, Chesterford Research Park, Little Chesterford, Saffron Walden, CB10 1XL, UK
| | - Kathryn L Chapman
- Domainex Ltd, Chesterford Research Park, Little Chesterford, Saffron Walden, CB10 1XL, UK
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13
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Evaluation of chemical cross-linkers for in-depth structural analysis of G protein-coupled receptors through cross-linking mass spectrometry. Anal Chim Acta 2020; 1102:53-62. [DOI: 10.1016/j.aca.2019.12.036] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2019] [Revised: 12/12/2019] [Accepted: 12/15/2019] [Indexed: 01/05/2023]
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14
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Zhang B, Zhao S, Yang D, Wu Y, Xin Y, Cao H, Huang XP, Cai X, Sun W, Ye N, Xu Y, Peng Y, Zhao S, Liu ZJ, Zhong G, Wang MW, Shui W. A Novel G Protein-Biased and Subtype-Selective Agonist for a G Protein-Coupled Receptor Discovered from Screening Herbal Extracts. ACS CENTRAL SCIENCE 2020; 6:213-225. [PMID: 32123739 PMCID: PMC7047268 DOI: 10.1021/acscentsci.9b01125] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/03/2019] [Indexed: 05/14/2023]
Abstract
Subtype selectivity and functional bias are vital in current drug discovery for G protein-coupled receptors (GPCRs) as selective and biased ligands are expected to yield drug leads with optimal on-target benefits and minimal side-effects. However, structure-based design and medicinal chemistry exploration remain challenging in part because of highly conserved binding pockets within subfamilies. Herein, we present an affinity mass spectrometry approach for screening herbal extracts to identify active ligands of a GPCR, the 5-HT2C receptor. Using this method, we discovered a naturally occurring aporphine 1857 that displayed strong selectivity for activating 5-HT2C without activating the 5-HT2A or 5-HT2B receptors. Remarkably, this novel ligand exhibited exclusive bias toward G protein signaling for which key residues were identified, and it showed comparable in vivo efficacy for food intake suppression and weight loss as the antiobesity drug, lorcaserin. Our study establishes an efficient approach to discovering novel GPCR ligands by exploring the largely untapped chemical space of natural products.
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Affiliation(s)
- Bingjie Zhang
- iHuman
Institute, ShanghaiTech University, Shanghai 201210, China
| | - Simeng Zhao
- iHuman
Institute, ShanghaiTech University, Shanghai 201210, China
| | - Dehua Yang
- The
National Center for Drug Screening and the CAS Key Laboratory of Receptor
Research, Shanghai Institute of Materia
Medica, Chinese Academy of Sciences, Shanghai 201203, China
| | - Yiran Wu
- iHuman
Institute, ShanghaiTech University, Shanghai 201210, China
| | - Ye Xin
- iHuman
Institute, ShanghaiTech University, Shanghai 201210, China
| | - Haijie Cao
- iHuman
Institute, ShanghaiTech University, Shanghai 201210, China
| | - Xi-Ping Huang
- Department
of Pharmacology, NIMH Psychoactive Drug Screening Program, School
of Medicine, University of North Carolina, Chapel Hill, North Carolina 27599, United States
| | - Xiaoqing Cai
- The
National Center for Drug Screening and the CAS Key Laboratory of Receptor
Research, Shanghai Institute of Materia
Medica, Chinese Academy of Sciences, Shanghai 201203, China
| | - Wen Sun
- The
National Center for Drug Screening and the CAS Key Laboratory of Receptor
Research, Shanghai Institute of Materia
Medica, Chinese Academy of Sciences, Shanghai 201203, China
- University
of Chinese Academy of Sciences, Beijing 100049, China
| | - Na Ye
- Jiangsu
Key Laboratory of Neuropsychiatric Diseases and College of Pharmaceutical
Sciences, Soochow University, Suzhou, Jiangsu 215123, China
| | - Yueming Xu
- iHuman
Institute, ShanghaiTech University, Shanghai 201210, China
| | - Yao Peng
- iHuman
Institute, ShanghaiTech University, Shanghai 201210, China
| | - Suwen Zhao
- iHuman
Institute, ShanghaiTech University, Shanghai 201210, China
- School
of
Life Science and Technology, ShanghaiTech
University, Shanghai 201210, China
| | - Zhi-Jie Liu
- iHuman
Institute, ShanghaiTech University, Shanghai 201210, China
- School
of
Life Science and Technology, ShanghaiTech
University, Shanghai 201210, China
| | - Guisheng Zhong
- iHuman
Institute, ShanghaiTech University, Shanghai 201210, China
- School
of
Life Science and Technology, ShanghaiTech
University, Shanghai 201210, China
- E-mail:
| | - Ming-Wei Wang
- The
National Center for Drug Screening and the CAS Key Laboratory of Receptor
Research, Shanghai Institute of Materia
Medica, Chinese Academy of Sciences, Shanghai 201203, China
- School
of
Life Science and Technology, ShanghaiTech
University, Shanghai 201210, China
- School
of Pharmacy, Fudan University, Shanghai 201203, China
- E-mail:
| | - Wenqing Shui
- iHuman
Institute, ShanghaiTech University, Shanghai 201210, China
- School
of
Life Science and Technology, ShanghaiTech
University, Shanghai 201210, China
- E-mail:
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15
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Mao Q, Zhang B, Li W, Tian S, Shui W, Ye N. Identification of Novel 1- O-Substituted Aporphine Analogues as Potent 5-HT 2C Receptor Agonists. ACS Chem Neurosci 2020; 11:549-559. [PMID: 31968160 DOI: 10.1021/acschemneuro.9b00563] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
The 5-HT2C receptor has emerged as a promising target in the treatment of a variety of central nervous system disorders. We have first identified aporphines as a new class of 5-HT2C receptor agonists. Structure-activity relationship results indicate that the aporphine core may be required for 5-HT2C receptor activity, and substitutions at its C1 position are important for 5-HT2C receptor activity. Our efforts to optimize our hit 15781 lead to the identification of the highly potent and selective 5-HT2C agonist 18b (MQ02-439) with an EC50 value of 104 nM and weak antagonism at the 5-HT2A and 5-HT2B receptors. The findings may serve as good starting points for the development of more potent and selective 5-HT2C agonists as valuable pharmacological tools or potential drug candidates.
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Affiliation(s)
- Qi Mao
- Jiangsu Key Laboratory of Neuropsychiatric Diseases and College of Pharmaceutical Sciences, Soochow University, Suzhou, Jiangsu 215123, China
| | - Bingjie Zhang
- iHuman Institute, ShanghaiTech University, Shanghai 201210, China
- School of Life Science and Technology, ShanghaiTech University, Shanghai 201210, China
| | - Wanwan Li
- Jiangsu Key Laboratory of Neuropsychiatric Diseases and College of Pharmaceutical Sciences, Soochow University, Suzhou, Jiangsu 215123, China
| | - Sheng Tian
- Jiangsu Key Laboratory of Neuropsychiatric Diseases and College of Pharmaceutical Sciences, Soochow University, Suzhou, Jiangsu 215123, China
| | - Wenqing Shui
- iHuman Institute, ShanghaiTech University, Shanghai 201210, China
- School of Life Science and Technology, ShanghaiTech University, Shanghai 201210, China
| | - Na Ye
- Jiangsu Key Laboratory of Neuropsychiatric Diseases and College of Pharmaceutical Sciences, Soochow University, Suzhou, Jiangsu 215123, China
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16
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Yuen H, Hung A, Yang AWH, Lenon GB. Mechanisms of Action of Cassiae Semen for Weight Management: A Computational Molecular Docking Study of Serotonin Receptor 5-HT2C. Int J Mol Sci 2020; 21:ijms21041326. [PMID: 32079105 PMCID: PMC7072867 DOI: 10.3390/ijms21041326] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2020] [Revised: 02/12/2020] [Accepted: 02/13/2020] [Indexed: 12/02/2022] Open
Abstract
Overweight and obesity is a growing global health concern. Current management of obesity includes lifestyle intervention, bariatric surgery and medication. The serotonin receptor, 5-HT2C, is known to mediate satiety, appetite and consumption behaviour. Lorcaserin, an appetite control drug, has demonstrated efficacy in appetite control by targeting 5-HT2C but causes undesirable side effects. This study aimed to explore the potential usage of Cassiae semen (CS), a well-known traditional Chinese medicine used to treat obesity. A computational molecular docking study was performed to determine the binding mechanism of CS compounds to the 5-HT2C receptors in both active, agonist-bound and inactive, antagonist-bound conformations. By comparing binding poses and predicted relative binding affinities towards the active or inactive forms of the receptor, we hypothesise that two of the CS compounds studied may be potent agonists which may mimic the appetite suppression effects of lorcaserin: obtusifoliol and cassiaside B2. Furthermore, two ligands, beta-sitosterol and juglanin, were predicted to bind favourably to 5-HT2C outside of the known agonist binding pocket in the active receptor, suggesting that such ligands may serve as positive allosteric modulators of 5-HT2C receptor function. Overall, this study proposed several CS compounds which may be responsible for exerting anti-obesity effects via appetite suppression by 5-HT2C receptor activation.
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Affiliation(s)
- Heidi Yuen
- School of Health and Biomedical Sciences, RMIT University, Bundoora, Victoria 3083, Australia; (H.Y.); (A.W.H.Y.)
| | - Andrew Hung
- School of Science, RMIT University, Melbourne, Victoria 3000, Australia;
| | - Angela Wei Hong Yang
- School of Health and Biomedical Sciences, RMIT University, Bundoora, Victoria 3083, Australia; (H.Y.); (A.W.H.Y.)
| | - George Binh Lenon
- School of Health and Biomedical Sciences, RMIT University, Bundoora, Victoria 3083, Australia; (H.Y.); (A.W.H.Y.)
- Correspondence: ; Tel.: +61-400-821-631
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17
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Bruder M, Polo G, Trivella DBB. Natural allosteric modulators and their biological targets: molecular signatures and mechanisms. Nat Prod Rep 2020; 37:488-514. [PMID: 32048675 DOI: 10.1039/c9np00064j] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Covering: 2008 to 2018Over the last decade more than two hundred single natural products were confirmed as natural allosteric modulators (alloNPs) of proteins. The compounds are presented and discussed with the support of a chemical space, constructed using a principal component analysis (PCA) of molecular descriptors from chemical compounds of distinct databases. This analysis showed that alloNPs are dispersed throughout the majority of the chemical space defined by natural products in general. Moreover, a cluster of alloNPs was shown to occupy a region almost devoid of allosteric modulators retrieved from a dataset composed mainly of synthetic compounds, further highlighting the importance to explore the entire natural chemical space for probing allosteric mechanisms. The protein targets which alloNPs bind to comprised 81 different proteins, which were classified into 5 major groups, with enzymes, in particular hydrolases, being the main representative group. The review also brings a critical interpretation on the mechanisms by which alloNPs display their molecular action on proteins. In the latter analysis, alloNPs were classified according to their final effect on the target protein, resulting in 3 major categories: (i) local alteration of the orthosteric site; (ii) global alteration in protein dynamics that change function; and (iii) oligomer stabilisation or protein complex destabilisation via protein-protein interaction in sites distant from the orthosteric site. G-protein coupled receptors (GPCRs), which use a combination of the three types of allosteric regulation found, were also probed by natural products. In summary, the natural allosteric modulators reviewed herein emphasise their importance for exploring alternative chemotherapeutic strategies, potentially pushing the boundaries of the druggable space of pharmacologically relevant drug targets.
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Affiliation(s)
- Marjorie Bruder
- Brazilian Biosciences National Laboratory (LNBio), National Centre for Research in Energy and Materials (CNPEM), 13083-970 Campinas, SP, Brazil.
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18
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Pharmacophore Directed Screening of Agonistic Natural Molecules Showing Affinity to 5HT 2C Receptor. Biomolecules 2019; 9:biom9100556. [PMID: 31581577 PMCID: PMC6843766 DOI: 10.3390/biom9100556] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2019] [Revised: 09/26/2019] [Accepted: 09/29/2019] [Indexed: 02/08/2023] Open
Abstract
Obesity prevalence continues to be a foremost health concern across the globe leading to the development of major health risk conditions like type II diabetes, hyperlipidemia, hypertension and even cancers. Because of the deprived drug-based management system, there is an urgent need for the development of new drugs aiming at satiety and appetite control targets. Among the reported satiety signaling targets, 5HT2C receptor plays a crucial role in decreasing appetite and has become a promising target for the development of anti-obesity drugs. Lorcaserin, a 5HT2C receptor agonist and the only drug available in the market, was designed based on the receptor mechanism of action. Due to limited drug options available and considering the adverse drug effects of Lorcaserin, the development of new drugs which are highly specific toward the 5HT2C target and with lesser side effects is essential. The present study is majorly focused on developing new 5HT2C agonists through computational approaches like screening, docking, and simulation using Phase, QikProp, Glide and Desmond applications of the Schrodinger suite. Screening protocols resulted in eight best hit molecules with affinity for the receptor and among them, five hits displayed binding affinity toward the conserved residue Asp 134 of the receptor. The stability of the five molecules in complex with the 5HT2C receptor was studied through molecular dynamic simulations. Three molecules, ZINC32123870, ZINC40312983 and ZINC32124535, maintained stable interactions with the Asp 134 residue throughout the 50 ns simulation run time. Further, due to the high sequence similarity seen among the receptors of 5HT2 family, the three potential hits were cross validated against other subtypes 5HT2A and 5HT2B of the 5HT2 family to determine the specificity of the molecules against the target. Among the three hits, ZINC32124535 was identified as the best potential hit based on the hydrogen bond interaction percentage with Asp residue [5HT2A (Asp 155:60%); 5HT2B (Asp155: No interaction); 5HT2C (Asp 134:86%)]. The ZINC32124535 molecule produced one salt bridge and hydrogen bond interactions with Asp 134, alike the known drug Lorcaserin. Based on the results, ZINC32124535 was identified as the best potential hit against the 5HT2C receptor.
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19
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Motevalli SM, Eltahan AS, Liu L, Magrini A, Rosato N, Guo W, Bottini M, Liang XJ. Co-encapsulation of curcumin and doxorubicin in albumin nanoparticles blocks the adaptive treatment tolerance of cancer cells. BIOPHYSICS REPORTS 2019. [DOI: 10.1007/s41048-018-0079-6] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
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20
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A Strength-Weaknesses-Opportunities-Threats (SWOT) Analysis of Cheminformatics in Natural Product Research. PROGRESS IN THE CHEMISTRY OF ORGANIC NATURAL PRODUCTS 2019; 110:239-271. [PMID: 31621015 DOI: 10.1007/978-3-030-14632-0_7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Cheminformatics-based techniques, such as molecular modeling, docking, virtual screening, and machine learning, are well accepted for their usefulness in drug discovery and development of therapeutically relevant small molecules. Although delayed by several decades, their application in natural product research has led to outstanding findings. Combining information obtained from different sources, i.e., virtual predictions, traditional medicine, structural, biochemical, and biological data, and handling big data effectively will open up new possibilities, but also challenges in the future. Strategies and examples will be presented on how to integrate cheminformatics in pharmacognostic workflows to benefit from these two highly complementary disciplines toward streamlining experimental efforts. While considering their limits and pitfalls and by exploiting their potential, computer-aided strategies should successfully guide future studies and thereby augment our knowledge of bioactive natural lead structures.
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21
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Xu Y, Sromek AW, Neumeyer JL. Identification of fluorinated (R)-(−)-aporphine derivatives as potent and selective ligands at serotonin 5-HT2C receptor. Bioorg Med Chem Lett 2019; 29:230-233. [DOI: 10.1016/j.bmcl.2018.11.050] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2018] [Accepted: 11/23/2018] [Indexed: 01/21/2023]
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