alexa Phenethylisothiocyanate: A Potential Anti-cancer Agent From Watercress
ISSN: 1948-5956

Journal of Cancer Science & Therapy
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3rd World Congress on Cancer Science & Therapy
October 21-23, 2013 DoubleTree by Hilton Hotel San Francisco Airport, CA, USA

Ahmad Faizal Abdull Razis
ScientificTracks: J Cancer Sci Ther
DOI: 10.4172/1948-5956.S1.028
Phenethylisothiocyanate (PEITC) is an isothiocyanate found in watercress as the glucosinolate and gluconasturtiin. The isothiocyanate is converted from the glucosinolate by intestinal microflora or when it comes into contact with myrosinase during the chopping and mastication of the vegetable. In vivo studies, PEITC manifested protection against chemically-induced cancers in various tissues. A potential mechanism of chemoprevention is by modulating the metabolism of carcinogens so as to promote deactivation. The principal objective of this study was to investigate in rats the effect of PEITC on carcinogen- metabolising enzyme systems such as sulphotransferase (SULT), N-acetyltransferase (NAT), glucuronosyltransferase (UDP) and epoxide hydrolase (EH) following exposure to low doses that simulate human dietary intake. Rats were fed for 2 weeks diets supplemented with PEITC at 0.06 μmole/g (low dose, i.e. dietary intake), 0.6 μmole/g (medium dose) and 6.0 μmole/g (high dose), and the enzymes were monitored in rat liver. At the low dose, no induction of the SULT, NAT and EH was noted, whereas UDP level was elevated. At the medium dose, only SULT level was increased, whereas; at the high dose marked increase in EH level was observed. It is concluded that the effects of PEITC on carcinogen-metabolising systems are dose-dependent. Increased levels of detoxification enzymes such as UDP, SULT and EH is the likely mechanism of the chemoprevention of PEITC.
Ahmad Faizal Abdull Razis has completed his Ph.D. in Toxicology from the University of Surrey, UK in May, 2012. He is currently a senior lecturer at the Faculty of Food Science and Technology and teaching Chemical Safety of Food and also Food Toxicology at undergraduate level. His research interests are food carcinogen, food allergen and cancer prevention. He has published more than 10 papers in reputed journals and currently supervising three M.Sc. students.
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