Wang et al.72 co-injected human ADSCs and BCCs in vivo and demonstrated that ADSCs secrete CXCL1 and IL-8 to increase the migration and tube formation of human umbilical vein endothelial cells (HUVECs) by signaling via the receptors, CXCR1 and CXCR2, which in turn enhance angiogenesis and tumor growth. This evidence concerns the gene CXCL8 and neoplasm.