WD-repeat protein 79 (WDR79), a member of the WD-repeat protein family, acts as a scaffold protein, participating in telomerase assembly, Cajal body formation and DNA double-strand break repair. Here, we first report that WDR79 is frequently overexpressed in cell lines and tissues derived from non-small cell lung cancer (NSCLC). Knockdown of WDR79 significantly inhibited the proliferation of NSCLC cells in vitro and in vivo by inducing cell cycle arrest and apoptosis. WD-repeat protein 79 -induced cell cycle arrest at the G0/G1 phase was associated with the expression of G0/G1-related cyclins and cyclin-dependent kinase complexes. We also provide evidence that WDR79 knockdown induces apoptosis via a mitochondrial pathway. Collectively, these results suggest that WDR79 is involved in the tumorigenesis of NSCLC and is a potential novel diagnostic marker and therapeutic target for NSCLC.
Pubmed ID: 26849396 RIS Download
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Cell line A-549 is a Cancer cell line with a species of origin Homo sapiens (Human)
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