PITPNM3 and oral cavity squamous cell carcinoma: Phosphatidylinositol Transfer Protein, Membrane-Associated 3 (PITPNM3), also named PYK2 N-terminal domain interacting receptor 1, has been reported to have high expression in different cancers, such as oral squamous cell carcinoma [4], non-small cell lung cancer [5], and breast cancer [6].