PTK2 and hepatocellular carcinoma: RhoGDI1 expression is also post-transcriptionally regulated by microRNAs such as miR-25, which promotes cell proliferation and migration by downregulating RhoGDI1 expression in hepatocellular carcinoma [31], and miR-151, which is expressed together with focal adhesion kinase (FAK) and promotes the invasion and metastasis of hepatocellular carcinoma cells by inhibiting RhoGDI1 expression [32].