Figure 4.

The expression of periostin and PCNA in PDGF-treated MMC cells transfected with periostin shRNA vector by Western blot and immunofluorescence. (a) Western blot detection and statistical analysis for periostin, *means P < 0.05 vs. cells of blank control group, #means P < 0.05 vs. cells of PDGF plus control vector group. (b) Immunofluorescence of periostin in MMC cells, white arrows show periostin positive expression (red fluorescence). (c) Immunofluorescence of PCNA counterstained by DAPI in MMC cells transfected with periostin shRNA vector. White arrows show positive signal. (A color version of this figure is available in the online journal.)