期刊
MOLECULAR BIOLOGY REPORTS
卷 37, 期 5, 页码 2241-2247出版社
SPRINGER
DOI: 10.1007/s11033-009-9711-3
关键词
Human livin protein; RNA interference; shRNA; Apoptosis; JNK1 kinase
资金
- Natural Science Foundation of Fujian Province [2008J0074]
Livin, a novel member of inhibitors of apoptosis protein, is highly expressed in tumor tissues. It is a potential target in tumor therapy. Silencing its gene expression has been found to promote tumor cell apoptosis or increase tumor sensitivity to therapies. This paper studied the effect of livin anti-apoptotic activity and examined its molecular mechanisms. In the study, higher levels of cell apoptosis were measured by FACS in the experiment group with livin expression silenced than that in controls (P < 0.05). After livin gene expression was knocked down, cleaved caspase-3 protein was up-regulated but caspase-3 mRNA expression was almost the same, the phosphorylated JNK1 protein was down-regulated but JNK1 mRNA and total JNK1 protein expression was approximately the same too. The results suggest that livin may exert anti-apoptotic action on SPC-A1 by activating JNK1 signaling pathway and inhibiting caspase-3 activation.
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