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Inhibitory Effect of Snake Venom Toxin on Colorectal Cancer HCT116 Cells Growth through Induction of Intrinsic or Extrinsic Apoptosis

Authors
김경태송호섭
Issue Date
2013
Publisher
대한침구의학회
Keywords
SVT; TRAIL; DR4; DR5; ROS
Citation
Journal of Acupuncture Research, v.30, no.1, pp.43 - 55
Journal Title
Journal of Acupuncture Research
Volume
30
Number
1
Start Page
43
End Page
55
URI
https://scholarworks.bwise.kr/gachon/handle/2020.sw.gachon/15849
ISSN
2586-288X
Abstract
I investigated whether snake venom toxin(SVT) from Vipera lebetina turanica enhances the apoptosis ability of tumor necrosis factor(TNF)-related apoptosis-inducing ligand(TRAIL) in cancer cells. TRAIL inhibited HCT116 cell growth in a dose-dependent manner. Consistent with cell growth inhibition, the expression of TRAIL receptors; DR4 and DR5 was significantly increased as well as apoptosis related proteins such as cleaved caspase-3, 8, 9 and Bax. However, the expression of survival proteins(eg, cFLIP, survivin, XIAP and Bcl2) was suppressed by the combination treatment of SVT and TRAIL. Pretreatment with the reactive oxygen species(ROS) scavenger N-acetylcysteine reduced the SVT and TRAIL-induced upregulation of DR4 and DR5 expression and expression of the apoptosis related protein such as caspase-3 and-9 as well as cell growth inhibitory effects. The collective results suggest that SVT facilitates TRAIL-induced apoptosis in human colorectal cancer HCT116 cells through up-regulation of the TRAIL receptors; DR4 and DR5 via ROS pathway signals.
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College of Korean Medicine (Dept.of Korean Medicine)
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