We previously reported that CAFs in diffuse-type gastric cancer (DGC) might originate from BM-MCs, and that CXCL1 from DGC cells stimulates the recruitment of BM-MCs into tumor stroma via CXCR2 signaling of BM-MCs in vitro and in vivo [8]. The gene discussed is CXCR2; the disease is neoplasm.