APBB1IP and cancer: While previous studies on other cancer types have highlighted the role of VASP interaction with FA adapter protein including vinculin, integrin superfamily and RIAM in promoting metastasis [23, 45, 54], our investigation did not reveal the co‐expression of VASP with these FA adapter proteins in the filopodia region of OSCC cell lines (Fig. 1E and Fig. S2).