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Abstract Title:

Curcumin induces apoptosis through the mitochondria-mediated apoptotic pathway in HT-29 cells.

Abstract Source:

J Zhejiang Univ Sci B. 2009 Feb;10(2):93-102. PMID: 19235267

Abstract Author(s):

Jin-bo Wang, Li-li Qi, Shui-di Zheng, Tian-xing Wu

Article Affiliation:

Department of Chemistry, College of Science, Zhejiang University, Hangzhou 310027, China.

Abstract:

OBJECTIVE: To investigate the effects of curcumin on release of cytochrome c and expressions of Bcl-2, Bax, Bad, Bcl-xL, caspase-3, poly ADP-ribose polymerase (PARP), and survivin of HT-29 cells.

METHODS: HT-29 cells were treated with curcumin (0 approximately 80 micromol/L) for 24 h. The release of cytochrome c from the mitochondria and the apoptosis-related proteins Bax, Bcl-2, Bcl-xL, Bad, caspase-3, PARP, and survivin were determined by Western blot analysis and their mRNA expressions by reverse transcriptase-polymerase chain reaction (RT-PCR).

RESULTS: Curcumin significantly induced the growth inhibition and apoptosis of HT-29 cells. A decrease in expressions of Bcl-2, Bcl-xL and survivin was observed after exposure to 10 approximately 80 micromol/L curcumin, while the levels of Bax and Bad increased in the curcumin-treated cells. Curcumin also induced the release of cytochrome c, the activation of caspase-3, and the cleavage of PARP in a dose-dependent manner.

CONCLUSION: These data suggest that curcumin induced the HT-29 cell apoptosis possibly via the mitochondria-mediated pathway.

Study Type : In Vitro Study

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