Cytokine analysis of conditioned medium generated by BMSCs with reduced TERC expression. (A) A commercial cytokine array (RayBio Human Cytokine Antibody Array 6 [60]) was used to assess the levels of cytokines secreted into the medium at 72 hours by untreated N-BMSCs, and 72 hours after transfection with negative control-siRNA, (siNC-BMSCs) and siTERC-RNA (siTERC-BMSCs) (n = 4 for each of the 3 groups). (B) A number of cytokines associated with hematopoiesis such as SCF, SDF-1, Angiogenin, and IL6 were found to be decreased between 18% and 30% in siTERC-BMSCs compared with siNC-BMSCs, although changes in SCF and SDF-1 were not significant when compared with N-BMSCs (*P ≤ .05).