(A, C, E, G, I, K, M, O) hBM-MSCs or (B, D, F, H, J, L, N, P) hHF-MSCs were transduced with the LV library of 27 Pr/RE and coaxed to differentiate into SMCs. The activities of the (A, B) SMAD2/3-RE; (C, D) SMAD7-RE; (E, F) CArG-RE; (G, H) CArGA-RE; (I, J) KLF4-RE; (K, L) ACTA2-Pr; (M, N) SM22-Pr; and (O, P) rMYH11-Pr were determined by fluorescence microscopy and the normalized intensity was plotted as a function of time. MSCs cultured in GM served as a control. * indicates p < 0.05 between DM and GM as determined by Student’s two-tailed t-test at individual time points. + indicates statistical significance of the Pr/RE activities under DM vs GM evaluated over entire curve by growth curve analysis (p < 0.05).