AT-MSC showed tendency to decrease tumor incidence upon admixing to low 8MGBA glioblastoma cells dose (Fig. 7B), even though expression analysis has shown similar expression pattern for the 8MGBA except for constitutive CXCR4 expression in comparison to melanoma cells A375 (Fig. 7C). Here, CXCR4 is linked to glioblastoma.