FYN is required for ARHGEF16 to promote proliferation and migration in colon cancer cells.

ARHGEF16 is a recently identified Rho-family guanine nucleotide exchange factor (GEF) that has been implicated in the activation of Rho-family GTPases such as Rho G, Rac, and Cdc42. However, its functions in colon cancer cell proliferation and migration are not well understood. In this study, we showed that ARHGEF16 was highly expressed in clinical specimens of colon cancer. In colon cancer cells, ARHGEF16-stimulated proliferation and migration in vitro and in vivo. Furthermore, we identified a nonreceptor tyrosine kinase, FYN, as a novel partner of ARHGEF16. Knocking down FYN expression decreased ARHGEF16 protein level in colon cancer cells. We further demonstrated that ARHGEF16-induced colon cancer cell proliferation and migration were dependent on FYN since knockdown FYN abolished the ARHGEF16-induced proliferation and migration of colon cancer cells. The FYN-ARHGEF16 axis mediates colon cancer progression and is a potential therapeutic target for colon cancer treatment.

Citation

Bei Yu, Linlin Xu, Limin Chen, Yao Wang, Hongying Jiang, Yiting Wang, Yehong Yan, Shiwen Luo, Zhenyu Zhai. FYN is required for ARHGEF16 to promote proliferation and migration in colon cancer cells. Cell death & disease. 2020 Aug 07;11(8):652

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PMID: 32811808

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