Abstract Title:

Cordyceps pruinosa extracts induce apoptosis of HeLa cells by a caspase dependent pathway.

Abstract Source:

J Ethnopharmacol. 2010 Feb 4. Epub 2010 Feb 4. PMID: 20138133

Abstract Author(s):

Ho Gyoung Kim, Heesang Song, Deok Hyo Yoon, Byeong-Wook Song, Sang Min Park, Gi Ho Sung, Jae-Youl Cho, Hae Il Park, Sunga Choi, Won O Song, Ki-Chul Hwang, Tae Woong Kim

Article Affiliation:

Department of Biochemistry, Kangwon National University, Chuncheon 200-701, Republic of Korea.


AIM OF THE STUDY: Cordyceps is a parasitic fungus and has long been used as a traditional Chinese medicine to treat illnesses, promote longevity, increase athletic power, and relieve exhaustion and cancer. In this study, we reveal the mechanisms underlying apoptosis induced by Cordyceps pruinosa butanol fraction (CPBF) in the human cervical adenocarcinoma cell line, HeLa. MATERIALS AND METHODS: Proliferation and apoptosis of cells were examined by MTT assay, DNA fragmentation, phosphatidyl serine distribution assay, Western blot analysis, and immunocytochemistry. To determine the association between CPBF related apoptosis and ROS, electron spin resonance (ESR) trapping experiments were used. RESULTS: CPBF inhibited proliferation and induced apoptosis in HeLa cells in a dose-dependent manner using a MTT assay, DNA fragmentation, and a phosphatidyl serine distribution assay. Western blot analysis showed that apoptosis in HeLa cells was caspase-3- and -9-dependent. Proteolytic cleavage of PARP and the release of cytochrome c from the mitochondria into the cytosol were significantly increased and the Bcl-2/Bax protein ratio was decreased. Apoptosis induced by CPBF was not prevented by various antioxidants. CONCLUSIONS: These results indicate that apoptotic effects of CPBF on HeLa cells are mediated by mitochondria-dependent death-signaling pathway independent of reactive oxygen species, suggesting that CPBF might be effective as an anti-proliferative agent for cancer.

Study Type : In Vitro Study
Additional Links
Pharmacological Actions : Apoptotic : CK(5217) : AC(3846)

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