Chinese Journal of Cancerindexed by SCI
《癌症》杂志
BMC

[ Special series on Hepatocellular Carcinoma ]
doi: 10.1186/s40880-017-0186-7
Id4 promotes cell proliferation in hepatocellular carcinoma
Yang Zhang, Li-Xing Zhang, Xiao-Qin Liu, Fang-Yu Zhao, Chao Ge, Tao-Yang Chen, Ming Yao and Jin-Jun Li
Shanghai Medical College, Fudan University
[Abstract]

Background
Hepatocellular carcinoma (HCC) is a common malignant tumor in the world, especially in China. As a member of the inhibitor of differentiation (Id) family, Id4 has been reported to function in many cancer types, but relatively little is known about its role in HCC. The purpose of this study was to investigate the potential relationship between Id4 and HCC development and the underlying mechanism involving the function of Id4 in HCC.
Methods
We used quantitative real-time polymerase chain reaction and Western blotting to examine the RNA and protein expression of Id4. In addition, we used Cell Counting Kit-8 assay and colony formation assay to identify the function of Id4 in the regulation of cell proliferation in human HCC.
Results
We found that the expression of Id4 protein was up-regulated in tumor tissues from HCC patients. Overexpression of Id4 promoted HCC cell proliferation, clonogenicity in vitro, and tumorigenicity in vivo. Id4 knockdown experiments showed that silencing Id4 blocked the proliferation and colony formation ability of HCC cells in vitro. Furthermore, overexpression of CCAAT/enhancer-binding protein β inhibited Id4 expression in HCC cells.
Conclusion
Id4 may be developed as a potent therapeutic agent for the treatment of HCC, but more details about the underlying mechanisms of action are needed.
Chinese Journal of Cancer 2017, Volume: 36, Issue 2
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Yang Zhang, Li-Xing Zhang, Xiao-Qin Liu, Fang-Yu Zhao, Chao Ge, Tao-Yang Chen, Ming Yao and Jin-Jun Li. Id4 promotes cell proliferation in hepatocellular carcinoma. Chin J Cancer. 2017, 36:19. doi:10.1186/s40880-017-0186-7


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