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Prediction of Dual Agents As an Activator of Mutant P53 and Inhibitor of Hsp90 by Docking, Molecular Dynamic Simulation and Virtual Screening Publisher Pubmed



Abbasi M1, 2 ; Sadeghialiabadi H1 ; Hassanzadeh F1 ; Amanlou M2
Authors
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Authors Affiliations
  1. 1. Department of Medicinal Chemistry, Faculty of Pharmacy, Isfahan University of Medical Sciences, Isfahan, 81746-73461, Iran
  2. 2. Department of Medicinal Chemistry, Pharmaceutical Science Research Center, Tehran University of Medical Science, Tehran, Iran

Source: Journal of Molecular Graphics and Modelling Published:2015


Abstract

Abstract Heat shock protein90s (Hsp90s) play a crucial role in the development of cancer, and their inhibitors are a main target for tumor suppression. P53 also is a tumor suppressor, but in cancer cells, mutations in the p53 gene lead to the inactivation and accumulation of protein. For instance, the ninth p53 cancer mutation, Y220C, destabilizes the p53 core domain. Small molecules have been assumed to bind to Y220C DNA-binding domain and reactivate cellular mutant p53 functions. In this study, one of the mutant p53 activators is suggested as an Hsp90 inhibitor according to a pyrazole scaffold. To confirm a new ligand as a dual agent, molecular docking and molecular dynamic simulations were performed on both proteins (p53 and Hsp90). Molecular dynamic simulations were also conducted to evaluate the obtained results on the other two pyrazole structures, one known as Hsp90 inhibitor and the other as the reported mutant p53 activator. The findings indicate that the new ligand was stable in the active site of both proteins. Finally, a virtual screening was performed on ZINC database, and a set of new dual agents was proposed according to the new ligand scaffold. © 2015 Published by Elsevier Inc.
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