Abstract Title:

Antioxidant enzymes activity involvement in luteolin-induced human lung squamous carcinoma CH27 cell apoptosis.

Abstract Source:

Eur J Pharmacol. 2006 Mar 18;534(1-3):12-8. Epub 2006 Feb 15. PMID: 16469309

Abstract Author(s):

Henry Wing-Cheung Leung, Chao-Lin Kuo, Wen-Hui Yang, Chia-Hsien Lin, Hong-Zin Lee

Article Affiliation:

Department of Radiation Oncology, Chi Mei Hospital, Liouying, Tainan, Taiwan.


Luteolin (3',4',5,7-tetrahydroxyflavone) is an active constituent of Lonicera japonica (Caprifoliaceae), and has been reported to produce anti-tumor activities. However, the apoptosis-inducing activity of luteolin still remains unknown. Flavonoids have been found to possess prooxidant and antioxidant action. The biological and pharmacological effect of flavonoid may depend upon its behavior as either an antioxidant or a prooxidant. Our experiments found that luteolin-induced CH27 cell apoptosis was accompanied by activation of antioxidant enzymes, such as superoxide dismutase and catalase, but not through the production of reactive oxygen species and disruption of mitochondrial membrane potential. Therefore, the effects of luteolin on CH27 cell apoptosis were suspected to result from the antioxidant rather than the prooxidant action of luteolin.

Study Type : In Vitro Study

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