title: Antiproliferative potential of gallic acid against diethylnitrosamine-induced rat hepatocellular carcinoma.
abstract: One of the focuses in current cancer chemoprevention studies is the search for nontoxic chemopreventive agents that inhibit the initiation of malignant transformation. Cancer biomarkers are quantifiable molecules involved in the physiologic or pathologic events occurring between exposure to carcinogens and the development, progression of cancer. Biomarkers may be the consequence of a continuous process, such as increased cell mass, or a discrete event, such as genetic mutation. Analysis of tumor markers can be used as an indicator of tumor response to therapy. Gallic acid is a naturally available polyphenol, possess strong antioxidant activity with a capacity to inhibit the formation of tumors in several cancer models. In the present study, we investigated the antiproliferative effect of gallic acid during diethylnitrosamine (DEN)-induced hepatocellular carcinoma (HCC) in male wistar albino rats. DEN treatment resulted in increased levels of aspartate transaminase, alanine transaminase, alkaline phosphatase, acid phosphatase, lactate dehydrogenase, gamma-glutamyltransferase, 5'-nucleotidase, bilirubin, alpha-fetoprotein, carcinoembryonic antigen, argyophillic nucleolar organizing regions, and proliferating cell nuclear antigen. Gallic acid treatment significantly attenuated these alterations and decreased the levels of AgNORs and PCNA. These finding suggests that gallic acid is a potent antiproliferative agent against DEN-induced HCC.
authors.affiliation: Department of Biochemistry, University of Madras, Guindy Campus, Chennai, Tamilnadu, India. biojagan_s@yahoo.co.in
authors.forename: Sundaram
authors.initials: S
authors.lastname: Jagan
authors.forename: Gopalakrishnan
authors.initials: G
authors.lastname: Ramakrishnan
authors.forename: Pandi
authors.initials: P
authors.lastname: Anandakumar
authors.forename: Sattu
authors.initials: S
authors.lastname: Kamaraj
authors.forename: Thiruvengadam
authors.initials: T
authors.lastname: Devaki
mesh_terms: D000477:Alkylating Agents / Q000633:toxicity; D000818:Animals; D000975:Antioxidants / Q000494:pharmacology*; D014408:Biomarkers, Tumor / Q000378:metabolism*; D002273:Carcinogens / Q000378:metabolism*; D006528:Carcinoma, Hepatocellular / Q000139:chemically induced / Q000188:drug therapy / Q000378:metabolism*; D049109:Cell Proliferation / Q000187:drug effects*; D004052:Diethylnitrosamine / Q000633:toxicity*; D005707:Gallic Acid / Q000494:pharmacology*; D008297:Male; D009374:Neoplasms, Experimental / Q000139:chemically induced / Q000188:drug therapy / Q000378:metabolism; D051381:Rats; D017208:Rats, Wistar
chemical_list: D000477:Alkylating Agents; D000975:Antioxidants; D014408:Biomarkers, Tumor; D002273:Carcinogens; D004052:Diethylnitrosamine; D005707:Gallic Acid