The antitumor activity of Tα1 occurs through different pathways, including inhibition of cell proliferation and induction of apoptosis (37), promotion of immunosurveillance by increasing the expression of MHC I (40) and tumor antigens (110), counteraction of the immunosuppressive effects associated with conventional chemotherapy, radiotherapy and targeted therapy (51, 67, 111, 112). Here, TAAR1 is linked to neoplasm.