1
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Exploring structural requirements of simple benzene derivatives for adsorption on carbon nanotubes: CoMFA, GRIND, and HQSAR. Struct Chem 2022. [DOI: 10.1007/s11224-022-01973-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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2
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6-amide-2-aryl benzoxazole/benzimidazole derivatives as VEFGR-2 inhibitors in two-and three-dimensional QSAR studies: topomer CoMFA and HQSAR. CHEMICAL PAPERS 2021. [DOI: 10.1007/s11696-021-01588-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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3
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Zhao X, Wang X, Li Y. Combined HQSAR method and molecular docking study on genotoxicity mechanism of quinolones with higher genotoxicity. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2019; 26:34830-34853. [PMID: 31655981 DOI: 10.1007/s11356-019-06482-3] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2019] [Accepted: 09/09/2019] [Indexed: 06/10/2023]
Abstract
Using the hologram quantitative structure-activity relationship (HQSAR) method, a quantitative model of the structure-activity relationship between the genotoxicity of quinolones towards gram-negative bacteria and structure of quinolones is constructed. A series of novel quinolones are designed, and 4 environmentally friendly quinolone derivatives are finally selected, because of their enhanced genotoxicity towards gram-negative/positive bacteria, decreased bioconcentration and increased photodegradability and biodegradability. The mechanisms underlying the genotoxicity of quinolones and its derivatives are analysed based on amino acid residues and molecular interactions. Three hydrophilic amino acids [arginine (ARG), asparagine (ASN) and aspartic acid (ASP)] play important roles in the antibacterial effects of quinolones. The introduction of highly hydrophilic groups into the C-7 position of amifloxacin (AMI) not only improved the stability of the AMI derivative-topoisomerase IV-DNA complex but also improved the antibacterial activities of AMI derivatives.
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Affiliation(s)
- Xiaohui Zhao
- College of Environmental Science and Engineering, North China Electric Power University, Beijing, 102206, China
- MOE Key Laboratory of Resources and Environmental Systems Optimization, North China Electric Power University, Beijing, 102206, China
| | - Xiaolei Wang
- College of Environmental Science and Engineering, North China Electric Power University, Beijing, 102206, China
- MOE Key Laboratory of Resources and Environmental Systems Optimization, North China Electric Power University, Beijing, 102206, China
| | - Yu Li
- College of Environmental Science and Engineering, North China Electric Power University, Beijing, 102206, China.
- MOE Key Laboratory of Resources and Environmental Systems Optimization, North China Electric Power University, Beijing, 102206, China.
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4
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Shiri F, Salahinejad M, Dijoor R, Nejati-Yazdinejad M. An explorative study on potent Gram-negative specific LpxC inhibitors: CoMFA, CoMSIA, HQSAR and molecular docking. J Recept Signal Transduct Res 2018; 38:151-165. [DOI: 10.1080/10799893.2018.1457052] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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6
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Computer-Aided Drug Design Approaches to Study Key Therapeutic Targets in Alzheimer’s Disease. ACTA ACUST UNITED AC 2017. [DOI: 10.1007/978-1-4939-7404-7_3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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7
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Das RN, Roy K. Computation of chromatographic lipophilicity parameter logk0 of ionic liquid cations from “ETA” descriptors: Application in modeling of toxicity of ionic liquids to pathogenic bacteria. J Mol Liq 2016. [DOI: 10.1016/j.molliq.2016.02.013] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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8
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Das RN, Roy K, Popelier PLA. Interspecies quantitative structure-toxicity-toxicity (QSTTR) relationship modeling of ionic liquids. Toxicity of ionic liquids to V. fischeri, D. magna and S. vacuolatus. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2015; 122:497-520. [PMID: 26414597 DOI: 10.1016/j.ecoenv.2015.09.014] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2015] [Revised: 09/08/2015] [Accepted: 09/09/2015] [Indexed: 06/05/2023]
Abstract
Considering the increasing uses of ionic liquids (ILs) in various industrial processes and chemical engineering operations, a complete assessment of their hazardous profile is essential. In the absence of adequate experimental data, in silico modeling might be helpful in filling data gaps for the toxicity of ILs towards various ecological indicator organisms. Using the rationale of taxonomic relatedness, the development of predictive quantitative structure-toxicity-toxicity relationship (QSTTR) models allows predicting the toxicity of ILs to a particular species using available experimental toxicity data towards a different species. Such studies may employ, along with the available experimental toxicity data to a species, molecular structure features and physicochemical properties of chemicals as independent variables for prediction of the toxicity profile against another closely related species. A few such interspecies toxicity correlation models have been reported in the literature for diverse chemicals in general, but this approach has been rarely applied to the class of ionic liquids. The present study involves the use of IL toxicity data towards the bacteria Vibrio fischeri along with molecular structure derived information or computational descriptors like extended topochemical atom (ETA) indices, quantum topological molecular similarity (QTMS) descriptors and computed lipophilicity measure (logk0) for the interspecies exploration of the toxicity data towards green algae S. vacuolatus and crustacea Daphnia magna, separately. This modeling study has been performed in accordance with the OECD guidelines. Finally, predictions for a true external set have been performed to fill the data gap of toxicity towards daphnids and algae using the Vibrio toxicity data and molecular structure attributes.
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Affiliation(s)
- Rudra Narayan Das
- Drug Theoretics and Cheminformatics Laboratory, Department of Pharmaceutical Technology, Jadavpur University, Kolkata 700032, India
| | - Kunal Roy
- Drug Theoretics and Cheminformatics Laboratory, Department of Pharmaceutical Technology, Jadavpur University, Kolkata 700032, India; Manchester Institute of Biotechnology, 131 Princess Street, Manchester M1 7DN, UK.
| | - Paul L A Popelier
- Manchester Institute of Biotechnology, 131 Princess Street, Manchester M1 7DN, UK.
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Nordmann J, Eierhoff S, Denißen M, Mayer B, Müller TJJ. Two-Step Synthesis of Blue Luminescent (Pyrrol-3-yl)-1H-(aza)indazoles Based on a Three-Component Coupling-Cyclocondensation Sequence. European J Org Chem 2015. [DOI: 10.1002/ejoc.201500575] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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10
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Advani P, Joseph B, Ambre P, Pissurlenkar R, Khedkar V, Iyer K, Gabhe S, Iyer RP, Coutinho E. In silico optimization of pharmacokinetic properties and receptor binding affinity simultaneously: a 'parallel progression approach to drug design' applied to β-blockers. J Biomol Struct Dyn 2015; 34:384-98. [PMID: 25854164 DOI: 10.1080/07391102.2015.1033646] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
The present work exploits the potential of in silico approaches for minimizing attrition of leads in the later stages of drug development. We propose a theoretical approach, wherein 'parallel' information is generated to simultaneously optimize the pharmacokinetics (PK) and pharmacodynamics (PD) of lead candidates. β-blockers, though in use for many years, have suboptimal PKs; hence are an ideal test series for the 'parallel progression approach'. This approach utilizes molecular modeling tools viz. hologram quantitative structure activity relationships, homology modeling, docking, predictive metabolism, and toxicity models. Validated models have been developed for PK parameters such as volume of distribution (log Vd) and clearance (log Cl), which together influence the half-life (t1/2) of a drug. Simultaneously, models for PD in terms of inhibition constant pKi have been developed. Thus, PK and PD properties of β-blockers were concurrently analyzed and after iterative cycling, modifications were proposed that lead to compounds with optimized PK and PD. We report some of the resultant re-engineered β-blockers with improved half-lives and pKi values comparable with marketed β-blockers. These were further analyzed by the docking studies to evaluate their binding poses. Finally, metabolic and toxicological assessment of these molecules was done through in silico methods. The strategy proposed herein has potential universal applicability, and can be used in any drug discovery scenario; provided that the data used is consistent in terms of experimental conditions, endpoints, and methods employed. Thus the 'parallel progression approach' helps to simultaneously fine-tune various properties of the drug and would be an invaluable tool during the drug development process.
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Affiliation(s)
- Poonam Advani
- a Department of Pharmaceutical Chemistry , C.U. Shah College of Pharmacy, S.N.D.T. Women's University , Mumbai , Maharashtra , India.,e Mumbai Educational Trust , Institute of Pharmacy , Bandra Reclamation, Bandra (W), Mumbai , India
| | - Blessy Joseph
- b Department of Pharmaceutical Chemistry , Bombay College of Pharmacy , Mumbai , Maharashtra , India
| | - Premlata Ambre
- b Department of Pharmaceutical Chemistry , Bombay College of Pharmacy , Mumbai , Maharashtra , India
| | - Raghuvir Pissurlenkar
- b Department of Pharmaceutical Chemistry , Bombay College of Pharmacy , Mumbai , Maharashtra , India
| | - Vijay Khedkar
- b Department of Pharmaceutical Chemistry , Bombay College of Pharmacy , Mumbai , Maharashtra , India
| | - Krishna Iyer
- b Department of Pharmaceutical Chemistry , Bombay College of Pharmacy , Mumbai , Maharashtra , India
| | - Satish Gabhe
- c Department of Pharmaceutical Chemistry , Poona College of Pharmacy, Bharati Vidyapeeth Deemed University , Pune , India
| | | | - Evans Coutinho
- b Department of Pharmaceutical Chemistry , Bombay College of Pharmacy , Mumbai , Maharashtra , India
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Hossain T, Mukherjee A, Saha A. Chemometric design to explore pharmacophore features of BACE inhibitors for controlling Alzheimer's disease. MOLECULAR BIOSYSTEMS 2015; 11:549-57. [DOI: 10.1039/c4mb00540f] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Pharmacophoric features of potent BACE inhibitors derived from multi-chemometric studies.
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Affiliation(s)
- Tabassum Hossain
- Department of Chemical Technology
- University of Calcutta
- Kolkata-700009
- India
| | - Arup Mukherjee
- Department of Chemical Technology
- University of Calcutta
- Kolkata-700009
- India
| | - Achintya Saha
- Department of Chemical Technology
- University of Calcutta
- Kolkata-700009
- India
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Ivanenkov YA, Majouga AG, Veselov MS, Chufarova NV, Baranovsky SS, Filkov GI. Computational approaches to the design of novel 5-HT6 R ligands. Rev Neurosci 2014; 25:451-67. [PMID: 24867282 DOI: 10.1515/revneuro-2014-0030] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2013] [Accepted: 04/19/2014] [Indexed: 01/13/2023]
Abstract
5-Hydroxytryptamine (5-HT, serotonin) subtype 6 receptor (5-HT6 receptor, 5-HT6 R) belongs to a 5-HT subclass of a relatively wide G protein-coupled receptor (GPCR) family. Accumulated biological data indicate that 5-HT6 R antagonists and agonists have a great potential for the treatment of neuropathological disorders, such as Parkinson's disease, Alzheimer's disease, and schizophrenia. A number of painstaking efforts have been made toward the design of novel 5-HT6 R ligands; however, there are still no drugs that successfully passed all the clinical trials and entered the market, except for several multimodal ligands. Novel active molecules are strongly needed to progress this development forward. The in silico drug design has some benefits compared with the other rough approaches in terms of thoroughness and predictive accuracy; therefore, it can be effectively used as a solid foundation for the design of novel 5-HT6 R ligands with high potency and selectivity. Here, we provide an overview of the reported computational approaches to the design of novel 5-HT6 R ligands.
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13
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Ugarkar AG, Ambre PK, Coutinho EC, Nandan S, Pissurlenkar RR. Extracting structural requirements for activity of GPR119 agonists: a hologram quantitative structure activity relationship (HQSAR) study. CAN J CHEM 2014. [DOI: 10.1139/cjc-2014-0129] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
GPR119 is a potential target for the treatment of diabetes mellitus. GPR119 agonists minimize the side-effects observed with sulphonyl ureas and glucagon-like peptide 1 analogs. Various reported GPR119 agonists from various patents were selected for the study and a 2D-QSAR study (HQSAR) was carried out. Fifty-five molecules were selected for the study. The study was performed on a training set of 40 structurally diverse molecules with reported biological activity. The most significant HQSAR model (q2 = 0.87, r2 = 0.99) was obtained using atoms, bond, connection, and acceptor and donor as fragment distinction. The fragment size was kept at 4–7. The predictive ability of the model was evaluated by an external test set containing 15 molecules not included in the training set, and the predicted values were in good agreement with the experimental values. The important fragments determined by the study were used to design new drug candidates having increased biological activity and comparable physicochemical properties.
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Affiliation(s)
- Apoorva G. Ugarkar
- Molecular Simulations Group, Department of Pharmaceutical Chemistry, Bombay College of Pharmacy, Kalina, Santacruz [E], Mumbai 400098, India
| | - Premlata K. Ambre
- Molecular Simulations Group, Department of Pharmaceutical Chemistry, Bombay College of Pharmacy, Kalina, Santacruz [E], Mumbai 400098, India
| | - Evans C. Coutinho
- Molecular Simulations Group, Department of Pharmaceutical Chemistry, Bombay College of Pharmacy, Kalina, Santacruz [E], Mumbai 400098, India
| | - Santosh Nandan
- Chemworx, Creative Industries Premises, Kalina, Santacruz [E], Mumbai 400098, India
| | - Raghuvir R.S. Pissurlenkar
- Molecular Simulations Group, Department of Pharmaceutical Chemistry, Bombay College of Pharmacy, Kalina, Santacruz [E], Mumbai 400098, India
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14
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Das RN, Roy K. Predictive in silico Modeling of Ionic Liquids toward Inhibition of the Acetyl Cholinesterase Enzyme of Electrophorus electricus: A Predictive Toxicology Approach. Ind Eng Chem Res 2014. [DOI: 10.1021/ie403636q] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Rudra Narayan Das
- Drug Theoretics and Cheminformatics
Laboratory, Division of Medicinal and Pharmaceutical Chemistry, Department
of Pharmaceutical Technology, Jadavpur University, Kolkata 700 032, India
| | - Kunal Roy
- Drug Theoretics and Cheminformatics
Laboratory, Division of Medicinal and Pharmaceutical Chemistry, Department
of Pharmaceutical Technology, Jadavpur University, Kolkata 700 032, India
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15
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Paz OS, Brito CCB, Castilho MS. Quantitative insights towards the design of potent deazaxanthine antagonists of adenosine 2B receptors. J Enzyme Inhib Med Chem 2013; 29:590-8. [DOI: 10.3109/14756366.2013.830113] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
Affiliation(s)
- Odailson Santos Paz
- Programa de Pós-graduação em Biotecnologia, Universidade Estadual de Feira de Santana, Ondina – Salvador
BahiaBrazil
| | - Camila Carane Bitencourt Brito
- Programa de Pós-graduação em Farmácia, Faculdade de Farmácia, Universidade Federal da Bahia, Ondina – Salvador
BahiaBrazil
| | - Marcelo Santos Castilho
- Programa de Pós-graduação em Farmácia, Faculdade de Farmácia, Universidade Federal da Bahia, Ondina – Salvador
BahiaBrazil
- Instituto Nacional de Ciência e Tecnologia em Biologia Estrutural e Bioimagem, Ondina – Salvador
BahiaBrazil
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16
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Mitra I, Saha A, Roy K. Quantification of contributions of different molecular fragments for antioxidant activity of coumarin derivatives based on QSAR analyses. CAN J CHEM 2013. [DOI: 10.1139/cjc-2012-0527] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Attempts have been made in the present work using in silico techniques for identification of essential structural features imparting antioxidant potential to naturally available coumarin molecules and their synthetic derivatives. Four different types of modeling tools have been employed for the qualitative and quantitative assessment of the molecular fragments constituting the biological pharmacophore. The descriptor-based quantitative structure–activity relationship (QSAR) and group-based QSAR (G-QSAR) models provide a quantitative estimation of the substituent requirements and the chemical nature of the parent moiety. Subsequently, 3D pharmacophore and hologram QSAR (HQSAR) models enable identification of the key molecular components necessary for the antioxidant potency to the molecules. All of the different models infer the importance of the hydrogen bond acceptor ketonic fragment for interaction of the antioxidant molecules with the neighbouring toxic radicals. Additionally, the phenyl substituent attached to the side chain and the benzene nucleus of the benzopyran moiety also constitute the response pharmacophore for the molecules under study. The models thus developed may serve as an essential query tool for screening of databases for selection of molecules bearing the essential fragments and subsequent prediction of their free radical scavenging potency.
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Affiliation(s)
- Indrani Mitra
- Drug Theoretics and Cheminformatics Laboratory, Department of Pharmaceutical Technology, Jadavpur University, Kolkata 700032, India
| | - Achintya Saha
- Department of Chemical Technology, University of Calcutta, 92 A P C Road, Kolkata 700009, India
| | - Kunal Roy
- Drug Theoretics and Cheminformatics Laboratory, Department of Pharmaceutical Technology, Jadavpur University, Kolkata 700032, India
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17
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Hossain T, Islam MA, Pal R, Saha A. Exploring structural requirement and binding interactions of β-amyloid cleavage enzyme inhibitors using molecular modeling techniques. Med Chem Res 2013. [DOI: 10.1007/s00044-013-0481-z] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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18
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de Souza SD, de Souza AMT, de Sousa ACC, Sodero ACR, Cabral LM, Albuquerque MG, Castro HC, Rodrigues CR. Hologram QSAR models of 4-[(diethylamino)methyl]-phenol inhibitors of acetyl/butyrylcholinesterase enzymes as potential anti-Alzheimer agents. Molecules 2012; 17:9529-39. [PMID: 22878227 PMCID: PMC6268868 DOI: 10.3390/molecules17089529] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2012] [Revised: 07/17/2012] [Accepted: 07/26/2012] [Indexed: 11/16/2022] Open
Abstract
Hologram QSAR models were developed for a series of 36 inhibitors (29 training set and seven test set compounds) of acetyl/butyrylcholinesterase (AChE/BChE) enzymes, an attractive molecular target for Alzheimer’s disease (AD) treatment. The HQSAR models (N = 29) exhibited significant cross-validated (AChE, q2 = 0.787; BChE, q2 = 0. 904) and non-cross-validated (AChE, r2 = 0.965; BChE, r2 = 0.952) correlation coefficients. The models were used to predict the inhibitory potencies of the test set compounds, and agreement between the experimental and predicted values was verified, exhibiting a powerful predictive capability. Contribution maps show that structural fragments containing aromatic moieties and long side chains increase potency. Both the HQSAR models and the contribution maps should be useful for the further design of novel, structurally related cholinesterase inhibitors.
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Affiliation(s)
- Simone Decembrino de Souza
- Laboratory of Molecular Modeling & QSAR-3D (ModMolQSAR), Faculty of Pharmacy, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, 21949-900, RJ, Brazil
| | - Alessandra Mendonça Teles de Souza
- Laboratory of Molecular Modeling & QSAR-3D (ModMolQSAR), Faculty of Pharmacy, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, 21949-900, RJ, Brazil
| | - Ana Carolina Corrêa de Sousa
- Laboratory of Molecular Modeling & QSAR-3D (ModMolQSAR), Faculty of Pharmacy, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, 21949-900, RJ, Brazil
| | - Ana Carolina Rennó Sodero
- Laboratory of Molecular Modeling & QSAR-3D (ModMolQSAR), Faculty of Pharmacy, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, 21949-900, RJ, Brazil
| | - Lúcio Mendes Cabral
- Laboratory of Industrial Pharmaceutical Technology (LabTIF), Faculty of Pharmacy, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, 21941-590, RJ, Brazil
| | - Magaly Girão Albuquerque
- Laboratory of Molecular Modeling (LabMMol), Program of Post-Graduation in Chemistry (PPGQu) Institute of Chemistry, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, 21949-900, RJ, Brazil
- Authors to whom correspondence should be addressed; (M.G.A.)(C.R.R.) Tel.: +55-21-2562-7132 (M.G.A.)
| | - Helena Carla Castro
- Laboratory of Antibiotics, Biochemistry, Education and Molecular Modeling (LABiEMol), Institute of Biology (IB), Fluminense Federal University (UFF), Campus of Valonguinho, Niterói, 24210-130, RJ, Brazil
| | - Carlos Rangel Rodrigues
- Laboratory of Molecular Modeling & QSAR-3D (ModMolQSAR), Faculty of Pharmacy, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, 21949-900, RJ, Brazil
- Authors to whom correspondence should be addressed; (M.G.A.)(C.R.R.) Tel.: +55-21-2562-7132 (M.G.A.)
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Sundar BG, Bailey TR, Dunn DD, Bacon ER, Salvino JM, Morton GC, Aimone LD, Zeqi H, Mathiasen JR, Dicamillo A, Huffman MJ, McKenna BA, Kopec K, Lu LD, Brown R, Qian J, Angeles T, Connors T, Spais C, Holskin B, Galinis D, Duzic E, Schaffhauser H, Rosse GC. Novel brain penetrant benzofuropiperidine 5-HT6 receptor antagonists. Bioorg Med Chem Lett 2012; 22:120-3. [DOI: 10.1016/j.bmcl.2011.11.050] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2011] [Accepted: 11/14/2011] [Indexed: 11/26/2022]
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Mitra I, Saha A, Roy K. Development of multiple QSAR models for consensus predictions and unified mechanistic interpretations of the free-radical scavenging activities of chromone derivatives. J Mol Model 2011; 18:1819-40. [DOI: 10.1007/s00894-011-1198-x] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2011] [Accepted: 07/20/2011] [Indexed: 11/25/2022]
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21
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2D and 3D QSAR analyses to predict favorable substitution sites in anilino-monoindolylmaleimides acting as PKCβII selective inhibitors. Med Chem Res 2010. [DOI: 10.1007/s00044-010-9439-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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22
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Fragment-based QSAR: perspectives in drug design. Mol Divers 2009; 13:277-85. [PMID: 19184499 DOI: 10.1007/s11030-009-9112-5] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2008] [Accepted: 01/11/2009] [Indexed: 12/25/2022]
Abstract
Drug design is a process driven by innovation and technological breakthroughs involving a combination of advanced experimental and computational methods. A broad variety of medicinal chemistry approaches can be used for the identification of hits, generation of leads, as well as to accelerate the optimization of leads into drug candidates. Quantitative structure-activity relationship (QSAR) methods are among the most important strategies that can be applied for the successful design of small molecule modulators having clinical utility. Hologram QSAR (HQSAR) is a modern 2D fragment-based QSAR method that employs specialized molecular fingerprints. HQSAR can be applied to large data sets of compounds, as well as traditional-size sets, being a versatile tool in drug design. The HQSAR approach has evolved from a classical use in the generation of standard QSAR models for data correlation and prediction into advanced drug design tools for virtual screening and pharmacokinetic property prediction. This paper provides a brief perspective on the evolution and current status of HQSAR, highlighting present challenges and new opportunities in drug design.
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Recent Advances on the 5-HT5A, 5-HT6 and 5-HT7 Receptors. ANNUAL REPORTS IN MEDICINAL CHEMISTRY 2008. [DOI: 10.1016/s0065-7743(08)00002-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/05/2023]
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24
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Selective 5-HT6 receptor ligands: progress in the development of a novel pharmacological approach to the treatment of obesity and related metabolic disorders. Pharmacol Ther 2007; 117:207-31. [PMID: 18068807 DOI: 10.1016/j.pharmthera.2007.08.006] [Citation(s) in RCA: 154] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2007] [Accepted: 08/31/2007] [Indexed: 12/16/2022]
Abstract
The increasing global prevalence of obesity unequivocally demonstrates that neither behavioural (diet and exercise) nor pharmacological approaches to this health problem are working. In this area of high unmet clinical need, the 5-HT6 receptor has generated enormous interest amongst academic and pharmaceutical industry scientists as a molecular target for the development of a new generation of safe and more effective anti-obesity drugs. In this review, we have described the major developments that have occurred in the fields of the medicinal chemistry and pharmacology of 5-HT6 ligands, with particular emphasis on their potential application as novel anti-obesity drugs. The last 5 years have witnessed an increasing understanding of the 5-HT6 receptor and its structural requirements that has produced an explosion in the number and diversity of novel, highly selective 5-HT6 receptor agonists, partial agonists and antagonists that have been designed and synthesized. In animal models, 5-HT6 receptor ligands of all functional types have been shown to decrease food intake when given acutely and chronically, to evoke profound and sustained weight-loss in obese animals, and concomitantly to improve a number of cardio-metabolic risk factors. Comparator studies in obese animal models, which are highly predictive of clinical outcomes, indicate that 5-HT6 ligands may have the potential to be more efficacious in the treatment of obesity than the current generation of anti-obesity drugs.
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Salum LDB, Polikarpov I, Andricopulo AD. Structural and chemical basis for enhanced affinity and potency for a large series of estrogen receptor ligands: 2D and 3D QSAR studies. J Mol Graph Model 2007; 26:434-42. [PMID: 17349808 DOI: 10.1016/j.jmgm.2007.02.001] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2006] [Revised: 01/31/2007] [Accepted: 02/02/2007] [Indexed: 10/23/2022]
Abstract
The estrogen receptor (ER) is an important drug target for the development of novel therapeutic agents for the treatment of breast cancer. Progress towards the design of more potent and selective ER modulators requires the optimization of multiple ligand-receptor interactions. Comparative molecular field analyses (CoMFA) and hologram quantitative structure-activity relationships (HQSAR) were conducted on a large set of ERalpha modulators. Two training sets containing either 127 or 69 compounds were used to generate QSAR models for in vitro binding affinity and potency, respectively. Significant correlation coefficients (affinity models, CoMFA, r(2)=0.93 and q(2)=0.79; HQSAR, r(2)=0.92 and q(2)=0.71; potency models, CoMFA, r(2)=0.94 and q(2)=0.72; HQSAR, r(2)=0.92 and q(2)=0.74) were obtained, indicating the potential of the models for untested compounds. The generated models were validated using external test sets, and the predicted values were in good agreement with the experimental results. The final QSAR models as well as the information gathered from 3D contour maps should be useful for the design of novel ERalpha modulators having improved affinity and potency.
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Affiliation(s)
- Lívia de B Salum
- Laboratório de Química Medicinal e Computacional, Centro de Biotecnologia Molecular Estrutural, Instituto de Física de São Carlos, Universidade de São Paulo, Av. Trabalhador São-Carlense 400, 13560-970 São Carlos, SP, Brazil
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Nyandege A, Kolanos R, Roth BL, Glennon RA. Further studies on the binding of N1-substituted tryptamines at h5-HT6 receptors. Bioorg Med Chem Lett 2007; 17:1691-4. [PMID: 17239595 DOI: 10.1016/j.bmcl.2006.12.089] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2006] [Revised: 12/19/2006] [Accepted: 12/22/2006] [Indexed: 10/23/2022]
Abstract
N(1)-Arylsulfonyl-substituted analogs of N,N-dimethyltryptamine bind at 5-HT(6) receptors. Replacement of the aryl moiety with similarly hydrophobic alkyl substituents results in decreased affinity, as does replacement of a benzenesulfonyl moiety with a benzyl group. Current findings indicate that an aryl (or substituted aryl) sulfonyl (rather than alkylsulfonyl or benzyl) moiety is optimal for high-affinity binding, and further suggest that the N(1)-benzenesulfonyl- and their corresponding N(1)-benzyltryptamine counterparts bind in a different fashion.
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Affiliation(s)
- Abner Nyandege
- Department of Medicinal Chemistry, School of Pharmacy, Virginia Commonwealth University, Richmond, VA 23298-0540, USA
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Holenz J, Pauwels PJ, Díaz JL, Mercè R, Codony X, Buschmann H. Medicinal chemistry strategies to 5-HT6 receptor ligands as potential cognitive enhancers and antiobesity agents. Drug Discov Today 2006; 11:283-99. [PMID: 16580970 DOI: 10.1016/j.drudis.2006.02.004] [Citation(s) in RCA: 110] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2005] [Revised: 12/15/2005] [Accepted: 02/20/2006] [Indexed: 10/24/2022]
Abstract
Although the 5-hydroxytryptamine(6) (5-HT(6)) receptor was discovered only recently, its almost exclusive distribution in the brain makes it a promising, novel, target for central nervous system (CNS)-mediated diseases such as Alzheimer's disease (cognitive function), schizophrenia, anxiety and obesity. In the past few years a significant research interest has advanced the understanding of the functional roles and the pharmacophore requirements of this receptor. Two 5-HT(6) receptor antagonists have already entered Phase II clinical trials for the enhancement of cognitive function. Since the first discovery of selective ligands for the 5-HT(6) receptor by HTS in 1998, several medicinal-chemistry-driven approaches have delivered highly selective lead structures with well-defined functionalities, starting from either the endogenous ligand 5-HT or the chemical structures identified by HTS. The concept of 'scaffold hopping' has been employed to expand the variability of the available chemical scaffolds and to generate patentable ligands. Supported by pharmacophore models, which have been established recently, the binding and functionality (structure-activity relationships) of the lead structures have been optimized further.
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Affiliation(s)
- Jörg Holenz
- Laboratorios Dr. Esteve S.A., Av. Mare de Déu de Montserrat 221, E-08041 Barcelona, Spain.
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