Figure 2.
HSP70 knockdown efficiency, surface marker expression, and proliferation of hMSCs. (A) RT-PCR results from full DNA gel images in Figure S3 and (B) Western Blot (WB) results from a full WB membrane in Figure S4 and band density quantification of heated hMSCs transfected with a scrambled shRNA (control) and HSP70 shRNAs #1 to #6; (C) Representative dot plots of flow cytometric analysis of surface marker expressions of hMSCs transfected with scrambled shRNA (top row) and HSP70 shRNA#5 (bottom row). Fluorescence thresholds were determined by fluorescence intensities of hMSCs with negative control antibodies IgG-FITC and IgG-PE; (D) dsDNA contents of hMSCs during osteogenic differentiation at Day 6, 12, 19, and 26. N = 4. KD: knockdown; HS: heat shock.