Overexpression of WDR79 in non-small cell lung cancer is linked to tumour progression.

Overexpression of WDR79 in non-small cell lung cancer is linked to tumour progression.
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非小细胞肺癌中 WDR79 的过度表达与肿瘤进展相关

DOI:
10.1111/jcmm.12759
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发表时间:
2016-04
影响因子:
5.3
通讯作者:
Ye M
Ye M
中科院分区:
医学2区
文献类型:
--
作者:
Sun Y;Yang C;Chen J;Song X;Li Z;Duan M;Li J;Hu X;Wu K;Yan G;Yang C;Liu J;Tan W;Ye M

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WD重复序列蛋白79(WD ‐repeat protein 79,WDR 79)是WD重复序列蛋白家族的一员,作为支架蛋白,参与端粒酶组装、Cajal小体形成和DNA双链断裂修复。在这里,我们首次报道了WDR 79在来源于非小细胞肺癌(NSCLC)的细胞系和组织中经常过表达。敲低WDR 79可通过诱导细胞周期阻滞和凋亡,在体内外显著抑制NSCLC细胞的增殖。WD重复蛋白79诱导的细胞周期停滞在G 0/G1期与G 0/G1相关的细胞周期蛋白和细胞周期蛋白依赖性激酶复合物的表达相关。我们还提供了WDR 79敲低通过线粒体途径诱导细胞凋亡的证据。总之,这些结果表明,WDR 79参与了NSCLC的肿瘤发生,是一个潜在的新的诊断标志物和治疗靶点的NSCLC。
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.
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