期刊
BIOCHEMICAL AND BIOPHYSICAL RESEARCH COMMUNICATIONS
卷 375, 期 3, 页码 315-320出版社
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.bbrc.2008.07.154
关键词
miR-122; Bcl-w; hepatocellular carcinoma
资金
- National Science Council of Taiwan [96-2628-13-001-008]
miR-122, a hepato-specific microRNA (miRNA), is frequently down-regulated in human hepatocellular carcinoma (HCC). In an effort to identify novel miR-122 targets, we performed an in silica, analysis and detected a Putative binding site in the 3'-Untranslated region (3'-UTR) of Bcl-w, an anti-apoptotic Bcl-2 family member. In the HCC-derived cell lines, Hep3B and HepG2, we confirmed that miR-122 modulates Bcl-w expression by directly targeting binding site within the 3'-UTR. The cellular mRNA and protein levels of Bcl-w were repressed by elevated levels of miR-122, which subsequently led to reduction of cell viability and activation of caspase-3. Thus, Bcl-w is a direct target of miR-122 that functions as an endogenous apoptosis regulator in these HCC-derived cell lines. (C) 2008 Elsevier Inc. All rights reserved.
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