Abstract
Colorectal cancer (CRC) is one of the common malignant tumors of digestive system, which the incidence of CRC has been on the rise in recent years. Omentin-1 is reported to be increased in plasma of CRC patients. The present study aimed to investigate whether Omentin-1 could promote the proliferation, invasion, migration and angiogenesis of colorectal cancer cells. ELISA assay and western blot analysis detected the Omentin-1 level in plasma of CRC patients and western blot analysis and RT-qPCR analysis detected the Omentin-1 level in colorectal cancer cell lines. The transfection effects were verified by western blot analysis. The cell proliferation, invasion and migration were determined by CCK-8 assay, wound healing assay and transwell assay. The expression of MMP2, MMP9, VEGF and AngII was analyzed by western blot analysis. The results showed that Omentin-1 was increased in plasma of CRC patients and colorectal cancer cell lines. Omentin-1 overexpression promoted the proliferation, invasion, migration and angiogenesis of colorectal cancer cells. And, up-regulation of Omentin-1 increased the expression of MMP2, MMP9, VEGF and AngII. In conclusion, our data suggested that Omentin-1 promoted the proliferation, invasion, migration and angiogenesis of colorectal cancer cells.
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