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Joondan N, Inassee MAT, Bhowon MG, Jhaumeer Laulloo S. Synthesis and biological properties of a series of aryl alkyl disulfide derivatives. Heliyon 2020; 6:e05368. [PMID: 33195838 PMCID: PMC7644900 DOI: 10.1016/j.heliyon.2020.e05368] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2020] [Revised: 08/23/2020] [Accepted: 10/26/2020] [Indexed: 11/30/2022] Open
Abstract
Disulfide containing compounds are recognized for their wide range of biological properties and are known for their important applications in the pharmaceutical field. In this study, a series of diaryl disulfides with varying alkyl chain length (C8-C16) was synthesized and assessed for their physicochemical and biological properties. The interactions of compounds with bovine serum albumin (BSA) was investigated in order to study their ability to bind with blood serum protein. An increase in the binding constants (Ka) was observed with increasing chain length C8-C12, while a decrease in value was obtained with compounds of chain length C14 and C16 showing a cut off effect at C12. The thermodynamic parameters of binding indicated that the compounds bound to BSA mostly by van der Waals forces and hydrogen bonding. Molecular docking studies showed that the diaryl disulfides displayed greater binding affinity to Trp 213 rather than the Trp 134 residue on the BSA molecule. The trend observed in molecular docking is in line with the fluorescence binding studies whereby the C12 derivative was found to show optimum affinity with BSA. The disulfide with chain length C10 showed moderate antibacterial activity the highest inhibitory activity against Bacillus cereus. The cytotoxicity of the disulfides towards HaCaT cells decreased from C8 to C14. The overall results obtained show that these disulfides have potent antibacterial properties against Gram-positive bacteria Bacillus cereus at concentrations which are relatively non-toxic to normal cells.
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Affiliation(s)
- Nausheen Joondan
- Department of Chemistry, Faculty of Science, University of Mauritius, Reduit, Mauritius
| | | | - Minu Gupta Bhowon
- Department of Chemistry, Faculty of Science, University of Mauritius, Reduit, Mauritius
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Nantes CI, Pereira ID, Bai R, Hamel E, Burnett JC, de Oliveira RJ, de F C Matos M, Beatriz A, Yonekawa MKA, Perdomo RT, de Lima DP, Bogo D, Dos A Dos Santos E. S-(4-Methoxyphenyl)-4-methoxybenzenesulfonothioate as a Promising Lead Compound for the Development of a Renal Carcinoma Agent. ChemMedChem 2020; 15:449-458. [PMID: 31834975 DOI: 10.1002/cmdc.201900566] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2019] [Revised: 12/09/2019] [Indexed: 12/15/2022]
Abstract
Organosulfur compounds show cytotoxic potential towards many tumor cell lines. Disulfides and thiosulfonates act through apoptotic processes, inducing proteins associated with apoptosis, endoplasmic reticulum stress, and the unfolded protein response. Three p-substituted symmetric diaryl disulfides and three diaryl thiosulfonates were synthesized and analyzed for inhibition of tubulin polymerization and for human cancer cell cytotoxic activity against seven tumor cell lines and a non-tumor cell line. S-(4-methoxyphenyl)-4-methoxybenzenesulfonothioate (6) exhibited inhibition of tubulin polymerization and showed the best antiproliferative potential, especially against the 786-0 cell line, being six times more selective as compared with the non-tumor cell line. In addition, compound 6 was able to activate caspase-3 after 24 and 48 h treatments of the 786-0 cell line and induced cell-cycle arrest in the G2/M stage at the highest concentration evaluated at 24 and 48 h. Compound 6 was able to cause complete inhibition of proliferation, inducing the death of 786-0 cells, by increasing the number of cells at G2/M and greater activation of caspase-3.
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Affiliation(s)
- Camilla I Nantes
- Laboratório de Biologia Molecular e Culturas Celulares Faculdade de Ciências Farmacêuticas, Alimentos e Nutrição, Universidade Federal de Mato Grosso do Sul, Av. Costa e Silva s/n, Cidade Universitária, CEP 79070-900, Campo Grande - MS, Brazil
| | - Ingrid D Pereira
- Laboratório de Pesquisa 4 - Instituto de Química, Universidade Federal de Mato Grosso do Sul, Av. Senador Müller, 1555, CEP 79070-900, Campo Grande - MS, Brazil
| | - Ruoli Bai
- Screening Technologies Branch, Developmental Therapeutics Program Division of Cancer Treatment and Diagnosis, Frederick National Laboratory National Cancer Institute (NCI), Frederick, MD 21702, USA
| | - Ernest Hamel
- Screening Technologies Branch, Developmental Therapeutics Program Division of Cancer Treatment and Diagnosis, Frederick National Laboratory National Cancer Institute (NCI), Frederick, MD 21702, USA
| | - James C Burnett
- Computational Drug Development Group, Screening Technologies Branch Developmental Therapeutics Program Division of Cancer Treatment and Diagnosis Frederick National Laboratory, National Cancer Institute (NCI), Frederick, MD 21702, USA
| | - Rodrigo J de Oliveira
- Centro de Estudos e Células Tronco Terapia Celular e Genética Toxicológica, Universidade Federal de Mato Grosso do Sul, CeTroGen NHU, Campo Grande - MS, Brazil
| | - Maria de F C Matos
- Laboratório de Biologia Molecular e Culturas Celulares Faculdade de Ciências Farmacêuticas, Alimentos e Nutrição, Universidade Federal de Mato Grosso do Sul, Av. Costa e Silva s/n, Cidade Universitária, CEP 79070-900, Campo Grande - MS, Brazil
| | - Adilson Beatriz
- Laboratório de Pesquisa 4 - Instituto de Química, Universidade Federal de Mato Grosso do Sul, Av. Senador Müller, 1555, CEP 79070-900, Campo Grande - MS, Brazil
| | - Murilo K A Yonekawa
- Laboratório de Bioquímica Geral e de Microrganismos Instituto de Biociências, Universidade Federal de Mato Grosso do Sul Av. Costa e Silva s/n, Cidade Universitária, CEP 79070-900, Campo Grande - MS, Brazil
| | - Renata T Perdomo
- Laboratório de Biologia Molecular e Culturas Celulares Faculdade de Ciências Farmacêuticas, Alimentos e Nutrição, Universidade Federal de Mato Grosso do Sul, Av. Costa e Silva s/n, Cidade Universitária, CEP 79070-900, Campo Grande - MS, Brazil
| | - Dênis P de Lima
- Laboratório de Pesquisa 4 - Instituto de Química, Universidade Federal de Mato Grosso do Sul, Av. Senador Müller, 1555, CEP 79070-900, Campo Grande - MS, Brazil
| | - Danielle Bogo
- Laboratório de Biologia Molecular e Culturas Celulares Faculdade de Ciências Farmacêuticas, Alimentos e Nutrição, Universidade Federal de Mato Grosso do Sul, Av. Costa e Silva s/n, Cidade Universitária, CEP 79070-900, Campo Grande - MS, Brazil
| | - Edson Dos A Dos Santos
- Laboratório de Bioquímica Geral e de Microrganismos Instituto de Biociências, Universidade Federal de Mato Grosso do Sul Av. Costa e Silva s/n, Cidade Universitária, CEP 79070-900, Campo Grande - MS, Brazil
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Matsuhashi S, Manirujjaman M, Hamajima H, Ozaki I. Control Mechanisms of the Tumor Suppressor PDCD4: Expression and Functions. Int J Mol Sci 2019; 20:ijms20092304. [PMID: 31075975 PMCID: PMC6539695 DOI: 10.3390/ijms20092304] [Citation(s) in RCA: 93] [Impact Index Per Article: 18.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2019] [Revised: 05/05/2019] [Accepted: 05/07/2019] [Indexed: 02/06/2023] Open
Abstract
PDCD4 is a novel tumor suppressor to show multi-functions inhibiting cell growth, tumor invasion, metastasis, and inducing apoptosis. PDCD4 protein binds to the translation initiation factor eIF4A, some transcription factors, and many other factors and modulates the function of the binding partners. PDCD4 downregulation stimulates and PDCD4 upregulation inhibits the TPA-induced transformation of cells. However, PDCD4 gene mutations have not been found in tumor cells but gene expression was post transcriptionally downregulated by micro environmental factors such as growth factors and interleukins. In this review, we focus on the suppression mechanisms of PDCD4 protein that is induced by the tumor promotors EGF and TPA, and in the inflammatory conditions. PDCD4-protein is phosphorylated at 2 serines in the SCFβTRCP ubiquitin ligase binding sequences via EGF and/or TPA induced signaling pathway, ubiquitinated, by the ubiquitin ligase and degraded in the proteasome system. The PDCD4 protein synthesis is inhibited by microRNAs including miR21.
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Affiliation(s)
- Sachiko Matsuhashi
- Department of Internal Medicine, Saga Medical School, Saga University, 5-1-1 Nabeshima, Saga 849-8501, Japan.
| | - M Manirujjaman
- Department of Internal Medicine, Saga Medical School, Saga University, 5-1-1 Nabeshima, Saga 849-8501, Japan.
| | - Hiroshi Hamajima
- Saga Food & Cosmetics Laboratory, Division of Food Manufacturing Industry Promotion, SAGA Regional Industry Support Center, 114 Yaemizo, Nabesima-Machi, Saga 849-0932, Japan.
| | - Iwata Ozaki
- Health Administration Center, Saga Medical School, Saga University, 5-1-1 Nabeshima, Saga 849-8501, Japan.
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Jana K, Bandyopadhyay T, Ganguly B. Designed inhibitors with hetero linkers for gastric proton pump H +,K +-ATPase: Steered molecular dynamics and metadynamics studies. J Mol Graph Model 2017; 78:129-138. [PMID: 29055186 DOI: 10.1016/j.jmgm.2017.10.006] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2017] [Revised: 10/06/2017] [Accepted: 10/09/2017] [Indexed: 02/07/2023]
Abstract
Acid suppressant SCH28080 and its derivatives reversibly reduce acid secretion activity of the H+,K+-ATPase in a K+ competitive manner. The results on homologation of the SCH28080 by varying the linker chain length suggested the improvement in efficacy. However, the pharmacokinetic studies reveal that the hydrophobic nature of the CH2 linker units may not help it to function as a better acid suppressant. We have exploited the role of linker unit to enhance the efficacy of such reversible acid suppressant drug molecules using hetero linker, i.e., disulfide and peroxy linkers. The logarithm of partition coefficient defined for a drug molecule relates to the partition coefficient, which allows the optimum solubility characteristics to reach the active site. The logarithm of partition coefficient calculated for the designed inhibitors suggests that inhibitors would possibly reach the active site in sufficient concentration like in the case of SCH28080. The steered molecular dynamics studies have revealed that the Inhibitor-1 with disulfide linker unit is more stable at the active site due to greater noncovalent interactions compared to the SCH28080. Centre of mass distance analysis suggests that the Cysteine-813 amino acid residue selectively plays an important role in the inhibition of H+,K+-ATPase for Inhibitor-1. Furthermore, the quantum chemical calculations with M11L/6-31+G(d,p) level of theory have been performed to account the noncovalent interactions responsible for the stabilization of inhibitor molecules in the active site gorge of the gastric proton pump at different time scale. The hydrogen bonding and hydrophobic interaction studies corroborate the center of mass distance analysis as well. Well-tempered metadynamics free energy surface and center of mass separation analysis for the Inhibitor-1 is in good agreement with the steered molecular dynamics results. The torsional angle of the linker units seems to be crucial for better efficacy of drug molecules. The torsional angle of linker units of SCH28080 (COCH2C) and of Inhibitor 1 (CSSC) prefers to lie within ∼60°-90° for a longer time during the simulations, whereas, the peroxy linker (COOC) of Inhibitor 2 prefers to adopt ∼120-160°. Therefore, it appears that the smaller torsion angle of linker units can achieve better interactions with the active site residues of H+,K+-ATPase to inhibit the acid secretion activity. The reversible drug molecules with disulfide linker unit would be a promising candidate as proton pump antagonist to H+,K+-ATPase.
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Affiliation(s)
- Kalyanashis Jana
- Computation and Simulation Unit (Analytical Discipline and Centralized Instrument Facility), CSIR, Central Salt and Marine Chemicals Research Institute, Bhavnagar 364002, Gujarat, India; Academy of Scientific and Innovative Research, CSIR, CSMCRI, Bhavnagar 364002, Gujarat, India
| | - Tusar Bandyopadhyay
- Theoretical Chemistry Section, Bhabha Atomic Research Centre, Trombay, Mumbai 400 085, India.
| | - Bishwajit Ganguly
- Computation and Simulation Unit (Analytical Discipline and Centralized Instrument Facility), CSIR, Central Salt and Marine Chemicals Research Institute, Bhavnagar 364002, Gujarat, India; Academy of Scientific and Innovative Research, CSIR, CSMCRI, Bhavnagar 364002, Gujarat, India.
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