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Downregulation of ZNF278 arrests the cell cycle and decreases the proliferation of colorectal cancer cells via inhibition of the ERK/MAPK pathway. | LitMetric

Downregulation of ZNF278 arrests the cell cycle and decreases the proliferation of colorectal cancer cells via inhibition of the ERK/MAPK pathway.

Oncol Rep

Division of Gastroenterology and Hepatology, Key Laboratory of Gastroenterology and Hepatology, Ministry of Health, State Key Laboratory for Oncogenes and Related Genes, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai Institute of Digestive Disease, Shanghai 200001, P.R. China.

Published: December 2017

Zinc finger protein 278 is a zinc finger transcription factor encoded on the 22q12.2 chromosome. Previous studies revealed that ZNF278 expression was significantly upregulated in colorectal cancer (CRC) tissue compared to adjacent non-tumor tissue. However, the expression and specific roles of ZNF278 in CRC remain unknown. ZNF278 expression was knocked down using specific siRNAs, which was confirmed by western blotting, and the effects of ZNF278 siRNAs on CRC cell proliferation were investigated. In addition, the effects of ZNF278 overexpression were confirmed by western blotting and cell proliferation assay. Correlations between ZNF278 and the ERK/MAPK pathway were also detected by western blotting. We found that ZNF278 knockdown significantly induced cell cycle arrest, resulting in cyclin D1/E1 downregulation and p21 upregulation. Moreover, we demonstrated that downregulation of ZNF278 decreased the proliferation of CRC cells via inhibition of the extracellular signal-regulated kinase/mitogen-activated protein kinase (ERK/MAPK) pathway for the first time. In conclusion, ZNF278 played a prominent role in the pathogenesis of CRC, and promoted CRC cell proliferation via the ERK/MAPK pathway, suggesting that it may act as a potential target in the diagnosis or treatment of CRC.

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Source
http://dx.doi.org/10.3892/or.2017.6031DOI Listing

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