IL8 from TEC was reported to play a mediating role in prostate cancer progression (76); meanwhile, CXCR7, CXCR4, and VEGF are angiocrine factors TEC stimulate angiogenesis and enhance survival of TEC in an autocrine manner (35, 77), thus supporting tumor progression and metastasis (78). The gene discussed is CXCR4; the disease is prostate cancer.