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Sadıkoğulları BC, Şenel P, Çini N, Faysal AA, Odabaşoğlu M, Özdemir AD, Gölcü A. An Overview of Natural and Synthetic Phthalides Involved in Cancer Studies: Past, Present, and Future. ChemistrySelect 2022. [DOI: 10.1002/slct.202202004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Bleda Can Sadıkoğulları
- Istanbul Technical University Faculty of Sciences and Letters Department of Chemistry Istanbul 34469 Turkey
| | - Pelin Şenel
- Istanbul Technical University Faculty of Sciences and Letters Department of Chemistry Istanbul 34469 Turkey
| | - Nejla Çini
- Istanbul Technical University Faculty of Sciences and Letters Department of Chemistry Istanbul 34469 Turkey
| | - Abdullah Al Faysal
- Istanbul Technical University Faculty of Sciences and Letters Department of Chemistry Istanbul 34469 Turkey
| | - Mustafa Odabaşoğlu
- Karadeniz Technical University Faculty of Sciences and Letters Department of Chemistry Trabzon 61080 Turkey
| | - Ayşe Daut Özdemir
- Istanbul Technical University Faculty of Sciences and Letters Department of Chemistry Istanbul 34469 Turkey
| | - Ayşegül Gölcü
- Istanbul Technical University Faculty of Sciences and Letters Department of Chemistry Istanbul 34469 Turkey
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2
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Rizo-Liendo A, Arberas-Jiménez I, Sifaoui I, Gkolfi D, Santana Y, Cotos L, Tejedor D, García-Tellado F, Piñero JE, Lorenzo-Morales J. The therapeutic potential of novel isobenzofuranones against Naegleria fowleri. Int J Parasitol Drugs Drug Resist 2021; 17:139-149. [PMID: 34627024 PMCID: PMC8501684 DOI: 10.1016/j.ijpddr.2021.09.004] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2021] [Revised: 09/24/2021] [Accepted: 09/28/2021] [Indexed: 11/22/2022]
Abstract
The Free-Living Amoeba species, Naegleria fowleri is the causative agent of a lethal encephalitis known as Primary Amoebic Encephalitis (PAM). Moreover, most of the reported cases are often related to swimming and/or diving in aquatic environments. In addition, the current therapeutic options against PAM are not fully effective and hence, there is an urgent need to develop novel therapeutic agents against this disease. Previously isobenzofuranones compounds have been reported to present antiprotozoal and antifungal activity among others. However, to the best of our knowledge, these molecules have not been previously tested against N. fowleri. Therefore, the aim of this study was to evaluate the activity of 14 novel isobenzofuranones against this pathogenic amoeba. The most active and less toxic molecules, were assayed in order to check induction of Programmed Cell Death (PCD) in the treated amoebae. The obtained results showed that these molecules were able to eliminate N. fowleri trophozoites and also induced PCD. Therefore, the tested isobenzofuranones could be potential therapeutic candidates for the treatment of PAM.
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Affiliation(s)
- Aitor Rizo-Liendo
- Instituto Universitario de Enfermedades Tropicales y Salud Pública de Canarias, Universidad de La Laguna, Avda. Astrofísico Fco. Sánchez, S/N, La Laguna, Tenerife, 38203, Islas Canarias, Spain; Departamento de Obstetricia, Ginecología, Pediatría, Medicina Preventiva y Salud Pública, Toxicología, Medicina Legal y Forense y Parasitología, Universidad De La Laguna, La Laguna, Tenerife, 38203, Islas Canarias, Spain; Red de Investigación Colaborativa en Enfermedades Tropicales (RICET), Spain
| | - Iñigo Arberas-Jiménez
- Instituto Universitario de Enfermedades Tropicales y Salud Pública de Canarias, Universidad de La Laguna, Avda. Astrofísico Fco. Sánchez, S/N, La Laguna, Tenerife, 38203, Islas Canarias, Spain; Departamento de Obstetricia, Ginecología, Pediatría, Medicina Preventiva y Salud Pública, Toxicología, Medicina Legal y Forense y Parasitología, Universidad De La Laguna, La Laguna, Tenerife, 38203, Islas Canarias, Spain; Red de Investigación Colaborativa en Enfermedades Tropicales (RICET), Spain
| | - Ines Sifaoui
- Instituto Universitario de Enfermedades Tropicales y Salud Pública de Canarias, Universidad de La Laguna, Avda. Astrofísico Fco. Sánchez, S/N, La Laguna, Tenerife, 38203, Islas Canarias, Spain; Departamento de Obstetricia, Ginecología, Pediatría, Medicina Preventiva y Salud Pública, Toxicología, Medicina Legal y Forense y Parasitología, Universidad De La Laguna, La Laguna, Tenerife, 38203, Islas Canarias, Spain; Red de Investigación Colaborativa en Enfermedades Tropicales (RICET), Spain; Consorcio Centro De Investigacion Biomedica En Red M.P. (CIBER) de Enfermedades Infecciosas, Inst. de Salud Carlos III, Madrid, Spain
| | - Dimitra Gkolfi
- Instituto de Productos Naturales y Agrobiología, Consejo Superior de Investigaciones Científicas, Avda. Fco. Sánchez 3, 38206, La Laguna, Tenerife, Islas Canarias, Spain
| | - Yiset Santana
- Instituto de Productos Naturales y Agrobiología, Consejo Superior de Investigaciones Científicas, Avda. Fco. Sánchez 3, 38206, La Laguna, Tenerife, Islas Canarias, Spain
| | - Leandro Cotos
- Instituto de Productos Naturales y Agrobiología, Consejo Superior de Investigaciones Científicas, Avda. Fco. Sánchez 3, 38206, La Laguna, Tenerife, Islas Canarias, Spain
| | - David Tejedor
- Instituto de Productos Naturales y Agrobiología, Consejo Superior de Investigaciones Científicas, Avda. Fco. Sánchez 3, 38206, La Laguna, Tenerife, Islas Canarias, Spain.
| | - Fernando García-Tellado
- Instituto de Productos Naturales y Agrobiología, Consejo Superior de Investigaciones Científicas, Avda. Fco. Sánchez 3, 38206, La Laguna, Tenerife, Islas Canarias, Spain
| | - José E Piñero
- Instituto Universitario de Enfermedades Tropicales y Salud Pública de Canarias, Universidad de La Laguna, Avda. Astrofísico Fco. Sánchez, S/N, La Laguna, Tenerife, 38203, Islas Canarias, Spain; Departamento de Obstetricia, Ginecología, Pediatría, Medicina Preventiva y Salud Pública, Toxicología, Medicina Legal y Forense y Parasitología, Universidad De La Laguna, La Laguna, Tenerife, 38203, Islas Canarias, Spain; Red de Investigación Colaborativa en Enfermedades Tropicales (RICET), Spain; Consorcio Centro De Investigacion Biomedica En Red M.P. (CIBER) de Enfermedades Infecciosas, Inst. de Salud Carlos III, Madrid, Spain.
| | - Jacob Lorenzo-Morales
- Instituto Universitario de Enfermedades Tropicales y Salud Pública de Canarias, Universidad de La Laguna, Avda. Astrofísico Fco. Sánchez, S/N, La Laguna, Tenerife, 38203, Islas Canarias, Spain; Departamento de Obstetricia, Ginecología, Pediatría, Medicina Preventiva y Salud Pública, Toxicología, Medicina Legal y Forense y Parasitología, Universidad De La Laguna, La Laguna, Tenerife, 38203, Islas Canarias, Spain; Red de Investigación Colaborativa en Enfermedades Tropicales (RICET), Spain; Consorcio Centro De Investigacion Biomedica En Red M.P. (CIBER) de Enfermedades Infecciosas, Inst. de Salud Carlos III, Madrid, Spain.
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Sahu S, Behera P, Panda S, Choudhury P, Rout L. Developments in chemistry and biological application of cotarnine & its analogs. Tetrahedron 2020. [DOI: 10.1016/j.tet.2020.131663] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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Mallikarjuna Reddy G, Camilo A, Raul Garcia J. Pyrrole-2,5-dione analogs as a promising antioxidant agents: microwave-assisted synthesis, bio-evaluation, SAR analysis and DFT studies/interpretation. Bioorg Chem 2020; 106:104465. [PMID: 33229119 DOI: 10.1016/j.bioorg.2020.104465] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Revised: 10/30/2020] [Accepted: 11/04/2020] [Indexed: 01/11/2023]
Abstract
A new series of pyrrole analogs were developed via the microwave irradiation synthesis. Consequently, got a high yield of the products. As pyrroles are familiar for showing various biological properties, all obtained compounds were screened for their antioxidant properties, most of the compounds showing significant activity. In fact, the motifs 5e, 5g, 5h and 5m showed outstanding antioxidant properties. Further, to enlighten the biologically energetic behavior underlying the antioxidant activity, compounds DFT studies were performed. Noteworthy results have been attained and the structure activity relationship (SAR) was discussed with the support of this results. It was found that highly biological active compounds exhibited a low HOMO-LUMO energy gap (Eg) and the high Eg value compounds show very low/negligible or inactive antioxidant activities. In other cases, compounds containing high HOMO energy levels also provide high antioxidant activity. The thought-provoking point of our results is that theoretical descriptors of the HOMO-LUMO energy gap and the highest occupied molecular orbital energy are important descriptors in the bioorganic research to support the biological experiments.
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Affiliation(s)
- Guda Mallikarjuna Reddy
- Ural Federal University, Chemical Engineering Institute, Yekaterinburg 620002, Russian Federation
| | - Alexandre Camilo
- Department of Physics, State University of Ponta Grossa, Ponta Grossa, Parana 84030-900, Brazil
| | - Jarem Raul Garcia
- Department of Chemistry, State University of Ponta Grossa, Ponta Grossa, Parana 84030-900, Brazil.
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Lu J, Zhang Y, Wang S, Bi Y, Huang T, Luo X, Cai YD. Analysis of Four Types of Leukemia Using Gene Ontology Term and Kyoto Encyclopedia of Genes and Genomes Pathway Enrichment Scores. Comb Chem High Throughput Screen 2019; 23:295-303. [PMID: 30599106 DOI: 10.2174/1386207322666181231151900] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2018] [Revised: 09/24/2018] [Accepted: 12/05/2018] [Indexed: 12/16/2022]
Abstract
AIM AND OBJECTIVE Leukemia is the second common blood cancer after lymphoma, and its incidence rate has an increasing trend in recent years. Leukemia can be classified into four types: acute lymphoblastic leukemia (ALL), acute myeloid leukemia (AML), chronic lymphocytic leukemia (CLL), and chronic myelogenous leukemia (CML). More than forty drugs are applicable to different types of leukemia based on the discrepant pathogenesis. Therefore, the identification of specific drug-targeted biological processes and pathways is helpful to determinate the underlying pathogenesis among such four types of leukemia. METHODS In this study, the gene ontology (GO) terms and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathways that were highly related to drugs for leukemia were investigated for the first time. The enrichment scores for associated GO terms and KEGG pathways were calculated to evaluate the drugs and leukemia. The feature selection method, minimum redundancy maximum relevance (mRMR), was used to analyze and identify important GO terms and KEGG pathways. RESULTS Twenty Go terms and two KEGG pathways with high scores have all been confirmed to effectively distinguish four types of leukemia. CONCLUSION This analysis may provide a useful tool for the discrepant pathogenesis and drug design of different types of leukemia.
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Affiliation(s)
- Jing Lu
- School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai University, 32 Qingquan Road, Yantai 264005, China
| | - YuHang Zhang
- Institute of Health Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, 320 Yueyang Road, Shanghai 200031, China
| | - ShaoPeng Wang
- School of Life Sciences, Shanghai University, 99 Shangda Road, Shanghai 200444, China
| | - Yi Bi
- School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai University, 32 Qingquan Road, Yantai 264005, China
| | - Tao Huang
- Institute of Health Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, 320 Yueyang Road, Shanghai 200031, China
| | - Xiaomin Luo
- Drug Discovery and Design Center, State Key Laboratory of Drug Research, Shanghai Institute of MateriaMedica, Chinese Academy of Sciences, 555 Zuchongzhi Road, Shanghai 201203, China
| | - Yu-Dong Cai
- School of Life Sciences, Shanghai University, 99 Shangda Road, Shanghai 200444, China
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Suryanarayanan V, Rajavel T, Devi KP, Singh SK. Structure based identification and biological evaluation of novel and potent inhibitors of PCAF catalytic domain. Int J Biol Macromol 2018; 120:823-834. [PMID: 30118769 DOI: 10.1016/j.ijbiomac.2018.08.052] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2018] [Revised: 08/08/2018] [Accepted: 08/09/2018] [Indexed: 12/14/2022]
Abstract
p300/CBP Associated Factor (PCAF), a GNAT family member protein, represent a valid target for therapeutic interventions since its dysfunction has implicated in variety of diseases like cancer, diabetes, inflammatory diseases, etc. Despite its potential for therapeutics, only a small number of PCAF inhibitors were reported. Hence, in this study, the catalytic domain of PCAF was explored to screen novel, potent and cell permeable inhibitor from three small molecule databases like Life Chemical, Maybridge and Chembridge by using Structure Based Virtual Screening (SBVS) method. Further, Induced Fit Docking, Binding Free Energy calculation, Single Point Energy calculation and Molecular Dynamics Simulation were performed on selected hits. In silico results revealed that F2209-0381 has higher binding energy of -109.722 and have greater cell permeability (QPPCaco = 1456.764; QPPMDCK = 742.941) than rest of hits. Cytotoxicity effect and protein expression analysis of F2209-0381 on A549 cells reveals that it exhibited strong inhibition with IC50 value of 58.31 μg/ml and significantly reduced the expression of PCAF after 72 h time point. Thus, this study warrants that F2209-0381 could become a novel, potent and cell permeable drug of PCAF thereby it could combat its mediated diseases.
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Affiliation(s)
- Venkatesan Suryanarayanan
- Computer Aided Drug Design and Molecular Modelling Lab, Department of Bioinformatics, Alagappa University, Karaikudi 630 004, Tamil Nadu, India
| | - Tamilselvam Rajavel
- Department of Biotechnology, Alagappa University, Karaikudi, 630 004, Tamil Nadu, India
| | - Kasi Pandima Devi
- Department of Biotechnology, Alagappa University, Karaikudi, 630 004, Tamil Nadu, India
| | - Sanjeev Kumar Singh
- Computer Aided Drug Design and Molecular Modelling Lab, Department of Bioinformatics, Alagappa University, Karaikudi 630 004, Tamil Nadu, India.
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Suryanarayanan V, Singh SK. Deciphering the binding mode and mechanistic insights of pentadecylidenemalonate (1b) as activator of histone acetyltransferase PCAF. J Biomol Struct Dyn 2018; 37:2296-2309. [PMID: 30044210 DOI: 10.1080/07391102.2018.1479658] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Histone acetyltransferases (HATs) is one among the conspicuous posttranslational modification in eukaryotic cells. p300/CBP Associated Factor (PCAF) and CREB-binding protein (CBP) are the two highly homologous HAT family which are vastly implicated in several diseases like cancer, diabetes, etc. Pentadecylidenemalonate, a simplified analog of anacardic acid, was reported as first mixed inhibitor/activator of HATs which inhibits p300/CBP and activates PCAF. It was appointed earlier as a valuable biological tool to understand the mechanism of lysine acetyltransferases due to its powerful apoptotic effect. In this study, pentadecylidenemalonate was taken for deciphering the binding mode, key interacting residues as well as mechanistic insights on PCAF and CBP as activator and inhibitor, respectively. This study is highly believed to help in rational design on antineoplastic drugs against PCAF. Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Venkatesan Suryanarayanan
- a Computer Aided Drug Design and Molecular Modelling Lab, Department of Bioinformatics , Alagappa University , Karaikudi , India Communicated by Ramaswamy H. Sarma
| | - Sanjeev Kumar Singh
- a Computer Aided Drug Design and Molecular Modelling Lab, Department of Bioinformatics , Alagappa University , Karaikudi , India Communicated by Ramaswamy H. Sarma
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Suryanarayanan V, Singh SK. Unravelling novel congeners from acetyllysine mimicking ligand targeting a lysine acetyltransferase PCAF bromodomain. J Biomol Struct Dyn 2018; 36:4303-4319. [DOI: 10.1080/07391102.2017.1415820] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Venkatesan Suryanarayanan
- Computer Aided Drug Design and Molecular Modelling Lab, Department of Bioinformatics, Alagappa University, Karaikudi, Tamil Nadu 630004, India
| | - Sanjeev Kumar Singh
- Computer Aided Drug Design and Molecular Modelling Lab, Department of Bioinformatics, Alagappa University, Karaikudi, Tamil Nadu 630004, India
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Suryanarayanan V, Singh SK. Assessment of dual inhibition property of newly discovered inhibitors against PCAF and GCN5 throughin silicoscreening, molecular dynamics simulation and DFT approach. J Recept Signal Transduct Res 2014; 35:370-80. [DOI: 10.3109/10799893.2014.956756] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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10
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Porcù E, Sipos A, Basso G, Hamel E, Bai R, Stempfer V, Udvardy A, Bényei AC, Schmidhammer H, Antus S, Viola G. Novel 9'-substituted-noscapines: synthesis with Suzuki cross-coupling, structure elucidation and biological evaluation. Eur J Med Chem 2014; 84:476-90. [PMID: 25050880 DOI: 10.1016/j.ejmech.2014.07.050] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2014] [Revised: 07/14/2014] [Accepted: 07/15/2014] [Indexed: 10/25/2022]
Abstract
Tubulin is a major molecular target for anticancer drugs. The dynamic process of microtubule assembly and disassembly can be blocked by various agents that bind to distinct sites on tubulin, usually its β-subunit. Among the antimitotic agents that perturb microtubule dynamics, noscapinoids represent an emerging class of agents. In particular, 9'-bromonoscapine (EM011) has been identified as a potent noscapine analog. Here we present high yielding, efficient synthetic methods based on Suzuki coupling of 9'-alkyl and 9'-arylnoscapines and an evaluation of their antiproliferative properties. Our results showed that 9'-alkyl and 9'-aryl derivatives inhibit proliferation of human cancer cells. The most active compounds were the 9'-methyl and the 9'-phenyl derivatives, which showed similar cytotoxic potency in comparison to the 9'-brominated derivative. Interestingly these newly synthesized derivatives did not induce cell death in normal human lymphocytes, suggesting that the compounds may be selective against cancer cells. All of these derivatives, except 9'-(2-methoxyphenyl)-noscapine, efficiently induced a cell cycle arrest in the G2/M phase of the cell cycle in HeLa and Jurkat cells. Furthermore, we showed that the most active compounds in HeLa cells induced apoptosis following the mitochondrial pathway with the activation of both caspase-9 and caspase-3. In addition, these compounds significantly reduced the expression of the anti-apoptotic proteins Mcl-1 and Bcl-2.
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Affiliation(s)
- Elena Porcù
- Department of Woman's and Child's Health, Laboratory of Oncohematology, University of Padova, Via Giustiniani 2, Padova 35128, Italy
| | - Attila Sipos
- Department of Pharmaceutical Chemistry, Medical and Health Science Center, University of Debrecen, Hungary
| | - Giuseppe Basso
- Department of Woman's and Child's Health, Laboratory of Oncohematology, University of Padova, Via Giustiniani 2, Padova 35128, Italy
| | - Ernest Hamel
- Screening Technologies Branch, Developmental Therapeutics Program, Division of Cancer Treatment and Diagnosis, Frederick National Laboratory for Cancer Research, National Cancer Institute, National Institutes of Health, Frederick, MD 21702, USA
| | - Ruoli Bai
- Screening Technologies Branch, Developmental Therapeutics Program, Division of Cancer Treatment and Diagnosis, Frederick National Laboratory for Cancer Research, National Cancer Institute, National Institutes of Health, Frederick, MD 21702, USA
| | - Verena Stempfer
- Department of Pharmaceutical Chemistry, Institute of Pharmacy and Center for Molecular Biosciences Innsbruck, University of Innsbruck, Austria
| | - Antal Udvardy
- Department of Physical Chemistry, University of Debrecen, Hungary
| | - Attila Cs Bényei
- Department of Physical Chemistry, University of Debrecen, Hungary; Department of Pharmaceutical Chemistry, Medical and Health Science Center, University of Debrecen, Hungary
| | - Helmut Schmidhammer
- Department of Pharmaceutical Chemistry, Institute of Pharmacy and Center for Molecular Biosciences Innsbruck, University of Innsbruck, Austria
| | - Sándor Antus
- Department of Organic Chemistry, University of Debrecen, Hungary
| | - Giampietro Viola
- Department of Woman's and Child's Health, Laboratory of Oncohematology, University of Padova, Via Giustiniani 2, Padova 35128, Italy.
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Chougule MB, Patel AR, Patlolla R, Jackson T, Singh M. Epithelial transport of noscapine across cell monolayer and influence of absorption enhancers on in vitro permeation and bioavailability: implications for intestinal absorption. J Drug Target 2014; 22:498-508. [PMID: 24731057 DOI: 10.3109/1061186x.2014.894046] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
The purpose of this study was to investigate the permeation of Noscapine (Nos) across the Caco-2 and Madin-Darby canine kidney (MDCK) cell monolayers and to evaluate the influence of absorption enhancers on in vitro and in vivo absorption of Nos. The bidirectional transport of Nos was studied in Caco-2 and MDCK cell monolayers at pH 5.0-7.8. The effect of 0.5% w/v chitosan (CH) or Captisol (CP) on Nos permeability was investigated at pH 5.0 and 5.8. The effect of 1-5% w/v of CP on oral bioavailability of Nos (150 mg/kg) was evaluated in Sprague-Dawley rats. The effective permeability coefficients (Peff) of Nos across Caco-2 and MDCK cell monolayers was found to be in the order of pH 5.0 > 5.8 > 6.8 > 7.8. The efflux ratios of Peff < 2 demonstrated that active efflux does not limit the absorption of Nos. The use of CH or CP have shown significant (***, p < 0.001) enhancement in Peff of Nos across cell monolayer compared with the control group. The CP (1-5% w/v) based Nos formulations resulted in significant (***, p < 0.001) increase in the bioavailability of Nos compared with Nos solution. The use of CP represents viable approach for enhancing the oral bioavailability of Nos and reducing the required dose.
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Affiliation(s)
- Mahavir B Chougule
- Department of Pharmaceutical Sciences, the Daniel K. Inouye College of Pharmacy, University of Hawaii at Hilo , Hilo, HI , USA and
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Suryanarayanan V, Singh SK, Tripathi SK, Selvaraj C, Reddy KK, Karthiga A. A three-dimensional chemical phase pharmacophore mapping, QSAR modelling and electronic feature analysis of benzofuran salicylic acid derivatives as LYP inhibitors. SAR AND QSAR IN ENVIRONMENTAL RESEARCH 2013; 24:1025-1040. [PMID: 23987088 DOI: 10.1080/1062936x.2013.821421] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Lymphoid tyrosine phosphatase (LYP), encoded by the PTPN22 gene, has a critical negative regulatory role in T-cell antigen receptor (TCR) and emerged as a promising drug target for human autoimmune diseases. A five-point pharmacophore with two hydrogen bond acceptors, one hydrogen bond donor and two aromatic ring features was generated for a series of benzofuran salicylic acid derivatives as LYP inhibitors in order to elucidate their anti-autoimmune activity. The generated pharmacophore yielded a significant 3D-QSAR model with r(2) of 0.9146 for a training set of 27 compounds. The model also showed excellent predictive power with Q(2) of 0.7068 for a test set of eight compounds. The investigation of the 3D-QSAR model has revealed the structural insights which could lead to more potent analogues. The most active and inactive compounds were further subjected to electronic structure analysis using density functional theory (DFT) at B3LYP/3-21(∗)G level to support the 3D-QSAR predictions. The results obtained from this study are expected to be useful in the proficient design and development of benzofuran salicylic acid derivatives as inhibitors of LYP.
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Affiliation(s)
- V Suryanarayanan
- a Computer Aided Drug Design and Molecular Modelling Lab, Department of Bioinformatics , Alagappa University , Tamil Nadu , India
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Sharma N, Yap CW. Consensus QSAR model for identifying novel H5N1 inhibitors. Mol Divers 2012; 16:513-24. [DOI: 10.1007/s11030-012-9384-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2012] [Accepted: 06/25/2012] [Indexed: 11/24/2022]
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