Anti-34a protected MSCs against H2O2 by enhancing expression of Bcl-2, Survivin, and Ki67. (A). The mRNA levels of anti-apoptotic genes Bcl-2, Survivin, and proliferation marker Ki67 were significantly higher in MSCs transfected with anti-34a under H2O2 challenge. * P<0.05; ** P<0.01; *** P<0.001. (B). Consistent with mRNA expression, Bcl-2 and Survivin protein levels were partially rescued by anti-34a. *** P<0.001.