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Knockdown of Uba2 inhibits colorectal cancer cell invasion and migration through downregulation of the Wnt/β-catenin signaling pathway.
Journal of Cellular Biochemistry 2018 August
Colorectal cancer is a serious threat to human health, and has a high mortality rate. There is currently no effective therapy for end-stage colorectal cancer. In recent years, molecular targeted therapy has received increasing attention for cancer treatment. In particular, the role of Uba2, a vital component of SUMO-activating enzyme, has been highlighted, which plays important roles in the progression of certain cancers; however, its role in colorectal cancer remains unclear. Accordingly, the aim of this study was to evaluate the relationship between Uba2 and colorectal cancer. Uba2 expression was knocked down in two colorectal cancer cell lines, and gene microarray analysis was conducted, followed by proliferation, migration, and invasion assays. Uba2 knockdown influenced the expression of several genes, and significantly inhibited the proliferation, migration, and invasion of cancer cells. To determine the underlying mechanism, the expression of related signaling pathways and molecules was evaluated in the knockdown cell lines. Overall, the results suggest that Uba2 participates in the progression, invasion, and metastasis of colorectal cancer, and the possible mechanism is via regulating the Wnt signaling pathway and enhancing epithelial-mesenchymal transition behaviors of colorectal cancer cells. Therefore, Uba2 is expected to be an important oncoprotein and potential therapeutic target in colorectal cancer.
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