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Anti-oxidative and Anti-cancer Activities of Treculia africana Extract in Human Colon Adenocarcinoma HT29 Cells

대장암세포주 HT29에서의 Treculia africana 추출물의 항산화 및 항암 활성 분석

  • Received : 2015.02.12
  • Accepted : 2015.05.17
  • Published : 2015.05.30

Abstract

Treculia africana Decne, a breadfruit species, is native to many parts of West and Tropical Africa. The breadfruit belongs to the family Moraceae and is one of the four members of the genera Treculia. The crude extract of T. africana has been used in folk medicine as an anti-inflammatory agent for various ailments, such as whooping cough. In this study, we evaluated the anti-oxidative and anti-cancer activities of the methanol extract of T. africana Decne (META) and the molecular mechanisms of its anti-cancer effects in human colon carcinoma HT29 cells. The META exhibited anti-oxidative activity through a DPPH radical scavenging capacity and inhibited cell growth in a dose-dependent manner in HT29 cells. META treatment induced apoptosis of HT29 cells, showing an increase in the percentage of both SubG1 cells and Annexin V-positive cells and the formation of apoptotic bodies in a dose-dependent manner. META-mediated apoptosis was associated with the up-regulation of the death receptor FAS and Bax and a decrease in the Bcl-2 expression. META-treated HT29 cells also showed the release of cytochrome c from the mitochondria into the cytosol, activation of caspase-3, caspase-8, and caspase-9, and proteolytic cleavage of poly ADP-ribose polymerase (PARP). These findings suggest META may exert an anti-cancer effect in HT29 cells by inducing apoptosis through both intrinsic and extrinsic pathways.

Keywords

Anti-cancer;anti-oxidative;apoptosis;caspase;Treculia africana

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