title: Luteolin, a bioflavonoid inhibits azoxymethane-induced colon carcinogenesis: Involvement of iNOS and COX-2.
abstract: Colon cancer (CRC) is a serious health problem through worldwide. Development of novel drug without side effect for this cancer was crucial. Luteolin (LUT), a bioflavonoid has many beneficial effects such as antioxidant, anti-inflammatory, anti-proliferative properties. Azoxymethane (AOM), a derivative of 1, 2-Dimethyl hydrazine (DMH) was used for the induction of CRC in Balb/C mice. CRC was induced by intraperitoneal injection of AOM to mice at the dose of 15 mg/body kg weight for 3 weeks. Mouse was treated with LUT at the dose of 1.2 mg/body kg weight orally until end of the experiment. The expression of inducible nitric oxide synthase (iNOS) and cyclooxygense (COX)-2 were analyzed by RT-PCR and immunohistochemistry. The expressions of iNOS and COX-2 were increased in the case of AOM induction. Administration of LUT effectively reduced the expressions of iNOS and COX-2. The present study revealed that, LUT suppresses both iNOS and COX-2 expressions and act as an anti-inflammatory role against CRC.
authors.affiliation: Department of Biochemistry, University of Madras, Guindy Campus, Chennai, India.
authors.forename: Ashok Kumar
authors.initials: AK
authors.lastname: Pandurangan
authors.affiliation: Department of Biochemistry, University of Madras, Guindy Campus, Chennai, India.
authors.forename: Suresh Ananda Sadagopan
authors.initials: SA
authors.lastname: Kumar
authors.affiliation: Department of Biochemistry, University of Madras, Guindy Campus, Chennai, India.
authors.forename: Prakash
authors.initials: P
authors.lastname: Dharmalingam
authors.affiliation: Department of Biochemistry, University of Madras, Guindy Campus, Chennai, India.
authors.forename: Sudhandiran
authors.initials: S
authors.lastname: Ganapasam
keywords: Azoxymethane; COX-2; Luteolin; colon cancer; iNOS