Title : Tea polyphenols can restrict benzo[a]pyrene-induced lung carcinogenesis by altered expression of p53-associated genes and H-ras, c-myc and cyclin D1.

Pub. Date : 2009 May

PMID : 18656336






5 Functional Relationships(s)
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1 Tea polyphenols can restrict benzo[a]pyrene-induced lung carcinogenesis by altered expression of p53-associated genes and H-ras, c-myc and cyclin D1. Polyphenols solute carrier family 7 (cationic amino acid transporter, y+ system), member 2 Mus musculus
2 Progression of lung lesions was restricted at the hyperplastic stage by tea polyphenols. Polyphenols solute carrier family 7 (cationic amino acid transporter, y+ system), member 2 Mus musculus
3 The tea polyphenols inhibited inflammatory response in the lung lesions on the 9th week, when decreased expression of H-ras and c-myc and increased expression of bax were noted. Polyphenols solute carrier family 7 (cationic amino acid transporter, y+ system), member 2 Mus musculus
4 Prolonged treatment (>9th week) with tea polyphenols resulted in changes in the expression of some additional genes, such as reduced expression of cyclin D1 (from the 17th week), bcl-2 (from the 26th week; mild dysplasia) and p21 (on the 36th week), and high expression of p53 (from the 17th week) and p27 (on the 36th week). Polyphenols solute carrier family 7 (cationic amino acid transporter, y+ system), member 2 Mus musculus
5 These observations indicate that the tea polyphenols can restrict B[a]P-induced lung carcinogenesis by differential modulation of the expression of p53 and its associated genes such as bax, bcl-2, mdm2, p21 and p27, along with H-ras, c-myc and cyclin D1, at different time points. Polyphenols solute carrier family 7 (cationic amino acid transporter, y+ system), member 2 Mus musculus