Abstract
Krüppel-like factor 5 (KLF5) promotes cell proliferation of bladder cancer. However, whether KLF5 regulates other cell processes in bladder cancer is not clear. We found that KLF5 increases cell migration and lamellipodia formation, expression of FYN and phosphorylation of FAK in bladder cancer cells. In addition, KLF5 promotes transcription of FYN through binding to its promoter. FYN overexpression rescues cell migration and lamellipodia formation reduced by KLF5 knockdown. Furthermore, the KLF5/FYN/p-FAK axis is necessary for lysophosphatidic acid (LPA) to promote cell migration. Our findings indicate that both KLF5 and FYN are important in the regulation of cell migration in bladder cancer cells. We propose the KLF5/FYN/p-FAK axis as a potential therapeutic target in bladder cancer.
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