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Manoharan JP, Palanisamy H, Vidyalakshmi S. Overcoming multi drug resistance mediated by ABC transporters by a novel acetogenin- annonacin from Annona muricata L. JOURNAL OF ETHNOPHARMACOLOGY 2024; 322:117598. [PMID: 38113989 DOI: 10.1016/j.jep.2023.117598] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/20/2023] [Revised: 11/28/2023] [Accepted: 12/13/2023] [Indexed: 12/21/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Multi-Drug Resistance (MDR), mediated by P-glycoprotein (P-gp) is one of the barriers to successful chemotherapy in colon cancer patients. Annona muricata L. (A.muricata), commonly known as soursop/Graviola, is a medicinal plant that has been traditionally used in treating diverse diseases including cancer. Phytochemicals of A.muricata (Annonaceous Acetogenins-AGEs) have been well-reported for their anti-cancer effects on various cancers. AIM OF THE STUDY The study aimed to examine the effect of AGEs in reversing MDR in colorectal cancer cells. METHODS Based on molecular docking and molecular dynamic simulation, the stability of annonacin upon P-gp was investigated. Further in vitro studies were carried in oxaliplatin-resistant human colon cancer cells (SW480R) to study the biological effect of annonacin, in reversing drug resistance in these cells. RESULTS Molecular docking and simulation studies have indicated that annonacin stably interacted at the drug binding site of P-gp. In vitro analysis showed that annonacin was able to significantly reduce the expression of P-gp by 2.56 folds. It also induced apoptosis in the drug-resistant colon cancer cells. Moreover, the intracellular accumulation of P-gp substrate (calcein-AM) was observed to increase in resistant cells upon treatment with annonacin. CONCLUSION Our findings suggest that annonacin could inhibit the efflux of chemotherapeutic drugs mediated by P-gp and thereby help in reversing MDR in colon cancer cells. Further in vivo studies are required to decipher the underlying mechanism of annonacin in treating MDR cancers.
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Affiliation(s)
- Jeevitha Priya Manoharan
- Department of Biotechnology, PSG College of Technology, Coimbatore, Tamil Nadu, India; Department of Biomedical Engineering, Sri Ramakrishna Engineering College, Coimbatore, Tamil Nadu, India.
| | - Hema Palanisamy
- Department of Biotechnology, PSG College of Technology, Coimbatore, Tamil Nadu, India.
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Hossain MS, Rahman MA, Dey PR, Khandocar MP, Ali MY, Snigdha M, Coutinho HDM, Islam MT. Natural Isatin Derivatives Against Black Fungus: In Silico Studies. Curr Microbiol 2024; 81:113. [PMID: 38472456 DOI: 10.1007/s00284-024-03621-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2023] [Accepted: 01/18/2024] [Indexed: 03/14/2024]
Abstract
During this coronavirus pandemic, when a lot of people are already severely afflicted with SARS-CoV-19, the dispersion of black fungus is making it worse, especially in the Indian subcontinent. Considering this situation, the idea for an in silico study to identify the potential inhibitor against black fungal infection is envisioned and computational analysis has been conducted with isatin derivatives that exhibit considerable antifungal activity. Through this in silico study, several pharmacokinetics properties like absorption, distribution, metabolism, excretion, and toxicity (ADMET) are estimated for various derivatives. Lipinski rules have been used to observe the drug likeliness property, and to study the electronic properties of the molecules, quantum mechanism was analyzed using the density functional theory (DFT). After applying molecular docking of the isatin derivatives with sterol 14-alpha demethylase enzyme of black fungus, a far higher docking affinity score has been observed for the isatin sulfonamide-34 (derivative 1) than the standard fluconazole. Lastly, molecular dynamic (MD) simulation has been performed for 100 ns to examine the stability of the proposed drug complex by estimating Root Mean Square Deviation (RMSD), Radius of gyration (Rg), Solvent accessible surface area (SASA), Root Mean Square Fluctuation (RMSF), as well as hydrogen bond. Listed ligands have precisely satisfied every pharmacokinetics requirement for a qualified drug candidate and they are non-toxic, non-carcinogenic, and have high stability. This natural molecule known as isatin derivative 1 has shown the potential of being a drug for fungal treatment. However, the impact of the chemicals on living cells requires more investigation and research.
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Affiliation(s)
- Md Saddam Hossain
- Department of Biomedical Engineering, Islamic University, Kushtia, 7003, Bangladesh
| | - Md Anisur Rahman
- Department of Pharmacy, Islamic University, Kushtia, 7003, Bangladesh
| | - Prithbey Raj Dey
- Department of Industrial and Production Engineering, Dhaka University of Engineering and Technology, Gazipur, 1707, Bangladesh
| | - Md Parvez Khandocar
- Department of Biomedical Engineering, Islamic University, Kushtia, 7003, Bangladesh
| | - Md Yeakub Ali
- Department of Biomedical Engineering, Islamic University, Kushtia, 7003, Bangladesh
| | - Mahajabin Snigdha
- Department of Pharmacy, Islamic University, Kushtia, 7003, Bangladesh
| | | | - Muhammad Torequl Islam
- Department of Pharmacy, Bangabandhu Sheikh Mujibur Rahman Science and Technology University, Gopalganj, 8100, Bangladesh.
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Pratti VL, Thomas M, Bhoite R, Satyavrat V. Investigating Bioavailability of Curcumin and Piperine Combination in Comparison to Turmeric Rhizomes: An in vitro Study. J Exp Pharmacol 2024; 16:37-47. [PMID: 38312742 PMCID: PMC10838102 DOI: 10.2147/jep.s427818] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2023] [Accepted: 11/18/2023] [Indexed: 02/06/2024] Open
Abstract
Purpose To assess the permeability of the test item (a combination of curcumin and piperine) and a reference item (dried and crushed turmeric rhizomes) using a combination of Caco-2 cell monolayer permeability assay and liquid chromatography-tandem mass spectrometry. Methodology In the Caco-2 cell assay, a transport buffer was prepared, and stock solutions of test and reference items were made. Caco-2 cells were cultured on transwell plates. Permeability assays were conducted for 2 and 6 hours, followed by post-experiment testing for assessing the monolayer integrity. LC-MS/MS (Liquid Chromatography with tandem mass spectrometry) analysis was performed to calculate apparent permeability of each item. Results The test item was undetectable at the end of 2 hours of permeability assay. Further, after 6 hours of permeability assay, the permeability of both test and reference item was found to be low. Conclusion The results showed that the curcumin and piperine combination had low permeability of curcumin in vitro as compared to the dried and crushed turmeric rhizomes. This could predict the low bioavailability of curcumin in vivo when co-administered with piperine.
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Affiliation(s)
| | | | - Rachana Bhoite
- Dr. Reddy's Laboratories Ltd, Ameerpet, Hyderabad, India
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Antimalarial activity assay of artesunate-3-chloro-4(4-chlorophenoxy) aniline in vitro and in mice models. Parasitol Res 2023; 122:979-988. [PMID: 36859621 PMCID: PMC9977633 DOI: 10.1007/s00436-023-07801-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2022] [Accepted: 02/20/2023] [Indexed: 03/03/2023]
Abstract
The global spread of multi-drug resistant P. falciparum, P. vivax, and P. malariae strains and absence of long-term effective vaccine makes chemotherapy the mainstay of malaria control strategies in endemic settings. The Mossman's assay and the Organization for Economic Co-operation and Development (OECD), 2001 guideline 423, were used to determine the cytotoxicity and acute oral toxicity of a novel hybrid drug, artesunate-3-Chloro-4(4-chlorophenoxy) aniline (ATSA), in vitro and in vivo, respectively. A modified Desjardins method was used to screen for antiplasmodial activity using P. falciparum (3D7 and W2) strains in vitro. The Peter's 4-day suppressive tests (4DTs) was used to evaluate the in vivo antimalaria activity using P. berghei ANKA strain, lumefantrine resistant (LuR), and piperaquine resistant (PQR) P. berghei lines. In silico prediction of absorption, distribution, metabolism, excretion, and toxicity (ADMET) profiles was assayed using PreADMET online prediction tool. The reference drug in all experiments was artesunate (ATS). Statistical significance between ATSA's activities in treated and control mice was evaluated by one-way analysis of variance (ANOVA). Results show that inhibitory concentrations-50 (IC50) of ATSA is 11.47 ± 1.3 (3D7) and 1.45 ± 0.26 (W2) against 4.66 ± 0.93 (3D7) and 0.60 ± 0.15 (W2) ng/ml of ATS with a selective index of 2180.91(3D7) and a therapeutic index (TI) of > 71). No mortalities were observed in acute oral toxicity assays and mean weight differences for test and controls were statistically insignificant (P > 0.05). The in vivo activity of ATSA was above 40% with effective dosage-50 (ED50) of 4.211, 2.601, and 3.875 mg/kg body weight against P. berghei ANKA, LuR, and PQR lines, respectively. The difference between treated and control mice was statistically significant (P < 0.05). ATSA has high intestinal absorption (HIA) > 95% and has medium human ether-a-go-go related gene (hERG) K+ channel inhibition risks. Preclinical and clinical studies on ATSA are recommended to evaluate its value in developing novel drugs for future management of multi-drug resistant malaria parasites.
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Ramirez DA, Federici MF, Altamirano JC, Camargo AB, Luco JM. Permeability Data of Organosulfur Garlic Compounds Estimated by Immobilized Artificial Membrane Chromatography: Correlation Across Several Biological Barriers. Front Chem 2021; 9:690707. [PMID: 34616711 PMCID: PMC8488277 DOI: 10.3389/fchem.2021.690707] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2021] [Accepted: 07/27/2021] [Indexed: 01/11/2023] Open
Abstract
Among healthy vegetables, those of the genus Allium stand out. Antioxidant and anti-inflammatory properties have been associated with these vegetables, attributed mainly to organosulfur compounds (OSCs). In turn, they are linked to a protective effect counteracting cardiovascular disease development. Now, to really ensure the bioactive efficacy of the said compounds once consumed, it is necessary to previously evaluate the ADME (absorption, distribution, metabolism, and excretion) profile. Alternatively, in vitro and in silico methods attempt to avoid or reduce experimental animals' use and provide preliminary information on drugs' ability to overcome the various biological barriers inherent in the ADME process. In this sense, in silico methods serve to provide primary information on drugs' bioavailability mechanisms. High-performance liquid chromatography (HPLC) using a stationary phase composed of phospholipids, the so-called immobilized artificial membrane (IAM), has been widely recognized as a valuable alternative method to extract and quantify information about the structure and physicochemical properties of organic compounds which are extensively used in studies of quantitative structure-activity relationships (QSARs). In the present study, the chromatographic capacity factors (log k' (IAM)) for 28 OSCs were determined by IAM-HPLC. In order to evaluate the ability of the IAM phase in assessing lipophilicity of the compounds under study, several quantitative structure-retention relationships (QSRRs) were derived from exploring fundamental intermolecular interactions that govern the retention of compounds under study on IAM phases. As expected, the hydrophobic factors are of prime importance for the IAM retention of these compounds. However, the molecular flexibility and specific polar interactions expressed by several electronic descriptors (relative negative charge, RNCG, and Mulliken electronegativity) are also involved. We also evaluated the IAM phase ability to assess several ADME parameters for the OSCs under study obtained using the SwissADME web tool integrated into the SwissDrugDesign workspace and the PreADMET web tool. The human gastrointestinal absorption (HIA), blood-brain barrier (BBB) permeation, and skin permeability were investigated through QSAR modeling, using several chemometric approaches. The ADME properties under study are strongly dependent on hydrophobic factors as expressed by log k'(IAM), which provide evidence for the great potential of the IAM phases in the development of QSAR models.
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Affiliation(s)
- Daniela Andrea Ramirez
- Instituto de Biología Agrícola de Mendoza (IBAM), CONICET-Mendoza, Mendoza, Argentina
- Laboratorio de Cromatografía para Agroalimentos, Facultad de Ciencias Agrarias, Universidad Nacional de Cuyo, Mendoza, Argentina
| | - María Fernanda Federici
- Laboratorio de Cromatografía para Agroalimentos, Facultad de Ciencias Agrarias, Universidad Nacional de Cuyo, Mendoza, Argentina
- Facultad de Ciencias Exactas y Naturales, Universidad Nacional de Cuyo, Mendoza, Argentina
| | - Jorgelina Cecilia Altamirano
- Facultad de Ciencias Exactas y Naturales, Universidad Nacional de Cuyo, Mendoza, Argentina
- Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales (IANIGLA), CONICET-Mendoza, Mendoza, Argentina
| | - Alejandra Beatriz Camargo
- Instituto de Biología Agrícola de Mendoza (IBAM), CONICET-Mendoza, Mendoza, Argentina
- Laboratorio de Cromatografía para Agroalimentos, Facultad de Ciencias Agrarias, Universidad Nacional de Cuyo, Mendoza, Argentina
| | - Juan María Luco
- Área de Química Analítica, Facultad de Química, Bioquímica y Farmacia, Universidad Nacional de San Luis, San Luis, Argentina
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Tang PK, Chakraborty K, Hu W, Kang M, Loverde SM. Interaction of Camptothecin with Model Cellular Membranes. J Chem Theory Comput 2020; 16:3373-3384. [PMID: 32126167 DOI: 10.1021/acs.jctc.9b00541] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Accurate and efficient prediction of drug partitioning in model membranes is of significant interest to the pharmaceutical industry. Herein, we utilize advanced sampling methods, specifically, the adaptive biasing force methodology to calculate the potential of mean force for a model hydrophobic anticancer drug, camptothecin (CPT), across three model interfaces. We consider an octanol bilayer, a thick octanol/water interface, and a model 1-palmitoyl-2-oleoyl-sn-glycero-3-phosphocholine (POPC)/water interface. We characterize the enthalpic and entropic contributions of the drug to the potential of mean force. We show that the rotational entropy of the drug is inversely related to the probability of hydrogen bond formation of the drug with the POPC membrane. In addition, in long-time microsecond simulations of a high concentration of CPT above the POPC membrane, we show that strong drug-drug aromatic interactions shift the spatial orientation of the drug with the membrane. Stacks of hydrophobic drugs form, allowing penetration of the drug just under the POPC head groups. These results imply that inhomogeneous membrane models need to take into account the effect of drug aggregation on the membrane environment.
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Affiliation(s)
- Phu K Tang
- Department of Chemistry, College of Staten Island, City University of New York, 2800 Victory Boulevard, 6S-238, Staten Island, New York 10314, United States.,Ph.D. Program in Chemistry, Biochemistry, and Physics, The Graduate Center of the City University of New York, New York, New York 10016, United States
| | - Kaushik Chakraborty
- Department of Chemistry, College of Staten Island, City University of New York, 2800 Victory Boulevard, 6S-238, Staten Island, New York 10314, United States
| | - William Hu
- Hunter College High School, New York, New York, 10128, United States
| | - Myungshim Kang
- Department of Chemistry, College of Staten Island, City University of New York, 2800 Victory Boulevard, 6S-238, Staten Island, New York 10314, United States
| | - Sharon M Loverde
- Department of Chemistry, College of Staten Island, City University of New York, 2800 Victory Boulevard, 6S-238, Staten Island, New York 10314, United States.,Department of Physics, Graduate Center, City University of New York, 365 Fifth Avenue, New York, New York 10016, United States.,Ph.D. Program in Chemistry, Biochemistry, and Physics, The Graduate Center of the City University of New York, New York, New York 10016, United States
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Faller B, Wang J, Zimmerlin A, Bell L, Hamon J, Whitebread S, Azzaoui K, Bojanic D, Urban L. High-throughputinvitroprofiling assays: lessons learnt from experiences at Novartis. Expert Opin Drug Metab Toxicol 2006; 2:823-33. [PMID: 17125403 DOI: 10.1517/17425255.2.6.823] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
This article reviews the use of a selection of in vitro assays implemented at Novartis and intends to address exposure and safety in early drug discovery. The authors' own experience, based on a large number of 'real' drug discovery compounds, is described to reflect on what has worked, where improvement is needed and how to best use the data for decision making. Possible strategies are discussed, and guidelines are provided on how to organise assays, extract value and contribute knowledge from the data.
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Affiliation(s)
- Bernard Faller
- Novartis Institutes for BioMedical Research, Basel, Switzerland.
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Abstract
Responding to a demonstrated need for scientists to forecast the permeability and bioavailability (F) properties of compounds before their purchase, synthesis, or advanced testing, we have developed a score that assigns the probability that a compound will have F > 10% in the rat. Neither the rule-of-five, log P, log D, nor the combination of the number of rotatable bonds and polar surface area successfully categorized compounds. Instead, different properties govern the bioavailability of compounds depending on their predominant charge at biological pH. The fraction of anions with >10% F falls from 85% if the polar surface area (PSA) is < or = 75 A(2), to 56% if 75 < PSA < 150 A(2), to 11% if PSA is > or = 150 A(2). On the other hand, whereas 55% of the neutral, zwitterionic, or cationic compounds that pass the rule-of-five have >10% F, only 17% of those that fail have > 10% F. This same categorization distinguishes compounds that are poorly permeable from those that are permeable in Caco-2 cells. Further validation is provided with human bioavailability values from the literature.
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Affiliation(s)
- Yvonne C Martin
- Advanced Technology Division, Global Pharmaceutical Research and Development, Abbott Laboratories, Abbott Park, IL 60064-6100, USA. yvonne.c.martin@ abbott.com
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