(A) Quantitative Real Time PCR reveals myocardin is exclusively expressed in CMCs, while MRTF-A is present in both CMCs and CFs at similar levels.
(B) Quantitative Real Time RT-PCR reveals SMA and SM22 are significantly enriched in CFs over-expressing MRTF-A relative to β-gal infected control CFs. Error bars represent the SEM.
(C) Indirect immunofluorescence of CFs demonstrates MRTF-A over-expression results in the enrichment of SMA into organized stress fibers as compared with Ad-β-gal infected CFs, which display primarily cortical actin SMA staining. Scale bar = 25 μm.