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Inhibition of Carcinogen Induced Activity of γ-glutamyl Transpeptidase by CertainDietary Constituents in Mouse Skin
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作者 YOGESHWERSHUKLA alkasingh 《Biomedical and Environmental Sciences》 SCIE CAS CSCD 1999年第1期66-71,共6页
Cancer chemoprevention, a desirable and important facet of biomedical research, provides a practical approach to identify potentially useful inhibitors of cancer development, and offers an opporiunity to study the me... Cancer chemoprevention, a desirable and important facet of biomedical research, provides a practical approach to identify potentially useful inhibitors of cancer development, and offers an opporiunity to study the mechanism of carcinogenesis. During the recent Past a number of compounds have been tested for their anticarcinogenic potential specially constituents of our diet. The enzyme γglutamyl transpeptidase (GGT) which catalyses the transfer of glutamyl groups of peptides to other peptides and amino acid and has been proposed as a marker of cell proliferation and neoplasia. It also serves as a tool to evaluate the carcinogenic and cocarcinogenic potential of environmental toxicants. In the present investigations, CGT activity induced by careinogenic polycyclic aromatic hydmiarbons, viz. 7, 12-dimethylbenz(a) anthracene (DMBA) and benzo(a) pyrene (BaP) was significantly inhibited by diallylsulfide (DAS) and indole-3-carbnol (I3C) in mouse skin. DAS and 13C are constituents of garlic and cruciferous vegetables respectively. A significant iIthibition in GGT levels was also observed in a strong mitogen (12-o-tetradecanoyl phorbol-13-acetate) induced activity in mouse skin by pretreatment with DAS/13C. Therefore these dietary constituents seem to be strong modifiers of chemically induced carcinogenesis 展开更多
关键词 Glutamyl Transpeptidase by Certain Dietary Constituents in Mouse Skin Inhibition of Carcinogen-induced Activity of ACTIVITY
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