Resveratrol suppresses oxidative stress and inflammatory response in diethylnitrosamine-initiated rat hepatocarcinogenesis.

Title

Resveratrol suppresses oxidative stress and inflammatory response in diethylnitrosamine-initiated rat hepatocarcinogenesis.

Creator

Bishayee Anupam; Barnes Kendra F; Bhatia Deepak; Darvesh Altaf S; Carroll Richard T

Publisher

Cancer prevention research (Philadelphia, Pa.)

Date

2010
2010-06

Description

Hepatocellular carcinoma (HCC), one of the most frequent and deadliest cancers, has been increasing considerably in the United States. In the absence of a proven effective therapy for HCC, novel chemopreventive strategies are urgently needed to lower the current morbidity and mortality of HCC. Recently, we have reported that resveratrol, a compound present in grapes and red wine, significantly prevents diethylnitrosamine (DENA)-induced liver tumorigenesis in rats, although the mechanism of action is not completely understood. In the present study, we have examined the underlying mechanisms of resveratrol chemoprevention of hepatocarcinogenesis by investigating the effects of resveratrol on oxidative damage and inflammatory markers during DENA-initiated rat liver carcinogenesis. There was a significant increase in hepatic lipid peroxidation and protein oxidation in carcinogen control animals compared with their normal counterparts at the end of the study (20 weeks). Elevated expressions of inducible nitric oxide synthase and 3-nitrotyrosine were noticed in the livers of the same animals. Dietary resveratrol (50-300 mg/kg) administered throughout the study reversed all the aforementioned markers in a dose-responsive fashion in rats challenged with DENA. Resveratrol also elevated the protein and mRNA expression of hepatic nuclear factor E2-related factor 2 (Nrf2). Results of the present investigation provide evidence that attenuation of oxidative stress and suppression of inflammatory response mediated by Nrf2 could be implicated, at least in part, in the chemopreventive effects of this dietary agent against chemically induced hepatic tumorigenesis in rats. The outcome of this study may benefit the development of resveratrol in the prevention and intervention of human HCC.

Subject

Animals; Antioxidants/*pharmacology/therapeutic use; Antitumor; Carcinogens/toxicity; Chemical and Drug Induced Liver Injury/*etiology/metabolism/pathology; Diethylnitrosamine/toxicity; Dose-Response Relationship; Drug; Drug Screening Assays; Enzyme Induction/drug effects; Experimental/chemically induced/metabolism/pathology/*prevention & control; Female; Hyperplasia; Inflammation/*prevention & control; Lipid Peroxidation/drug effects; Liver Neoplasms; Liver/drug effects/metabolism/pathology; Messenger/biosynthesis/genetics; NF-E2-Related Factor 2/biosynthesis/genetics; Nitric Oxide Synthase Type II/biosynthesis/genetics; Oxidative Stress/*drug effects; Phenobarbital/toxicity; Precancerous Conditions/*chemically induced/metabolism/pathology; Rats; Resveratrol; RNA; Sprague-Dawley; Stilbenes/*pharmacology/therapeutic use; Tyrosine/analogs & derivatives/analysis

Rights

Article information provided for research and reference use only. All rights are retained by the journal listed under publisher and/or the creator(s).

Pages

753–763

Issue

6

Volume

3

Citation

Bishayee Anupam; Barnes Kendra F; Bhatia Deepak; Darvesh Altaf S; Carroll Richard T, “Resveratrol suppresses oxidative stress and inflammatory response in diethylnitrosamine-initiated rat hepatocarcinogenesis.,” NEOMED Bibliography Database, accessed April 23, 2021, https://neomed.omeka.net/items/show/4717.

Social Bookmarking