Such a result may be explained by the fact that MSCs play a supporting role in tumorigenesis through the secretion of factors such as IL6, IL8, VEGF, platelet-derived growth factor (PDGF), fibroblast growth factor (FGF)-7, TGF-β, and vimentin, supporting the growth and chemoresistance of the tumor [26]. The gene discussed is CXCL8; the disease is neoplasm.