Synthesis and evaluation of resveratrol derivatives as new chemical entities for cancer
作者:Chaitanya Mulakayala、B. Babajan、P. Madhusudana、C.M. Anuradha、Raja Mohan Rao、Ravi Prakash Nune、Sunil Kumar Manna、Naveen Mulakayala、Chitta Suresh Kumar
DOI:10.1016/j.jmgm.2013.01.005
日期:2013.4
Resveratrol has been shown to be active in inhibiting multistage carcinogenesis. The potential use of resveratrol in cancer chemoprevention or chemotherapy settings has been hindered by its short half-life and low bioavailability. Considering the above remarks, using resveratrol as a prototype, we have synthesized two derivatives of resveratrol. Their activity was evaluated using in vitro and in silica analysis. Biological evaluation of resveratrol analogues on U937 cells had shown that two synthesized analogues of resveratrol had higher rates of inhibition than the parental molecule at 10 mu M concentration. EMSA conducted for NF-kB revealed that these molecules significantly interfered in the DNA binding ability of NF-kB. It was found that these molecules suppressed the expression of TNF alpha, TNFR, IL-8, actin and activated the expression of FasL, FasR genes. To understand possible molecular mechanism of the action we performed docking and dynamic studies, using NF-kB as a receptor. Results showed that resveratrol, RA1 and RA2 interacted with the residues involved in DNA binding. Resveratrol analogues by interacting NF-kB might have prevented its translocation and also by interacting with the residues involved in DNA binding might have prevented the binding of NP-kB to DNA. This may be the reason for suppression of NF-kB binding to DNA. (C) 2013 Elsevier Inc. All rights reserved.