Abstract Title:

Inhibitory effect of curcumin on SOS functions induced by UV irradiation.

Abstract Source:

Ann Oncol. 2000 Dec;11(12):1537-43. PMID: 7477054

Abstract Author(s):

Y Oda

Article Affiliation:

Osaka Prefectural Institute of Public Health, Japan.

Abstract:

The antigenotoxic effects of curcumin, including the inhibition of SOS induction and mutagenesis by UV light, were investigated in Salmonella typhimurium TA1535/pSK1002 and Escherichia coli K-12 strains. Induction of the SOS gene (umuC) expression was assayed by measuring accumulated beta-galactosidase activity. We found that curcumin blocked umuC induction promoted by UV irradiation in a dose-dependent manner. Also, with another SOS response, Weigle reactivation, we observed that curcumin effectively inhibited phage reactivation by UV irradiation. Furthermore, we tested the effect of curcumin on UV mutagenesis. We showed that mutagenesis induced by UV irradiation was suppressed by the addition of curcumin. Together these results indicate that curcumin acts as an inhibitor of SOS functions including UV mutagenesis.

Study Type : In Vitro Study

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