Stromal cell-derived factor 1 (SDF-1) is a chemotactic factor for T cells, monocytes, hematopoietic progenitor cells, dendritic cells, endothelial cells, and tumor cells [1–4], and plays a role in a number of important physiological processes including leukocyte trafficking and vasculogenesis [5, 6]. Here, CXCL12 is linked to neoplasm.