Biochem/physiol Actions
GRB2 associated binding protein 1 (GAB1) acts as a scaffold protein for protein-protein interaction. It regulates growth factor receptors and enhances signal transduction of multiple intracellular signaling pathways, such as phosphatidylinositol 3-kinase and protein kinase B (PKB/AKT)/ mammalian target of rapamycin (mTOR) signaling pathways. Upregulated expression of GAB1 contributes to the progression of various types of cancer including human oral squamous cell carcinoma (OSCC), breast cancer, colorectal cancer, hepatocellular carcinoma, and ovarian cancer. Therefore, knockdown of the GAB1 gene can be considered as a potential therapeutic strategy for treating breast cancer and OSCC.
