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In Silico and in Vitro Studies of Thiosemicarbazone-Indole Hybrid Compounds As Potent Α-Glycosidase Inhibitors Publisher Pubmed



Bakherad Z1 ; Bakherad H2 ; Sepehri S3, 4 ; Faramarzi MA5 ; Mahnam K6 ; Mojtabavi S5 ; Mahdavi M7
Authors
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Authors Affiliations
  1. 1. Food and Drug Research Institute, Food and Drug Administration, MOHE, Tehran, Iran
  2. 2. Department of Pharmaceutical Biotechnology, Faculty of Pharmacy, Isfahan University of Medical Sciences, Isfahan, Iran
  3. 3. Department of Medicinal Chemistry, School of Pharmacy, Ardabil University of Medical Sciences, Ardabil, Iran
  4. 4. Pharmaceutical Sciences Research Center, Ardabil University of Medical Sciences, Ardabil, Iran
  5. 5. Department of Pharmaceutical Biotechnology, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
  6. 6. Department of Biology, Faculty of Sciences, Shahrekord University, Shahrekord, Iran
  7. 7. Endocrinology and Metabolism Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran

Source: Computational Biology and Chemistry Published:2022


Abstract

It is essential to study α-glucosidase enzyme (EC 3.2.1.20) inhibitors because of their physiological role as well as their clinical relevance. In previous research, a novel series of thiosemicarbazone-indole hybrid compounds were synthesized and reported. In the current research, α-glucosidase inhibitory activity of the derivatives was evaluated and then in silico studies were carried out on screened compounds. All derivatives exhibited a magnificent α-glucosidase inhibitory activity (IC50 = 27.0 ± 1.0–97.4 ± 1.5 µM) toward the acarbose as reference drug (IC50 = 750.0 ± 1.5 µM). Compound 1i having phenyl ring at the thiosemicarbazone moiety and the trimethoxymethyl substituent at phenyl moiety of C2 position of indole ring was the most potent compound (IC50 = 27.0 ± 1.0 µM) among other compounds. A kinetic study of 1i revealed that is a competitive inhibitor against α-glucosidase. Moreover, the molecular docking studies established that screened derivatives interacted with the essential amino acids in the active site. Finally, based on the molecular dynamics simulations and free binding energy calculations, complexes 1d, 1i and 1k with α-glucosidase showed a good stability in the active site. Van der Waals and electrostatic interactions also exhibited the most contributions to the stability of these complexes. Moreover, all the screened compounds showed agreeable ADME properties for oral bio-availability, and good drug-likeness. © 2022 Elsevier Ltd
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