Research Article
Type III Transforming Growth Factor-β Receptor RNA Interference Enhances Transforming Growth Factor β3-Induced Chondrogenesis Signaling in Human Mesenchymal Stem Cells
Figure 5
TβRIII RNAi strengthened TGF-β3-mediated Smad2/3 phosphorylation. SiNC- or SiTβRIII-infected cells were cultured in control medium (C-SiNC group; C-SiTβRIII group) or chondrogenic medium containing TGF-β3 (T-SiNC group; T-SiTβRIII group) and harvested after 24 h. (a) A Western blot of protein levels of P-Smad2/3, total Smad2/3, and GAPDH. (b) Quantification of protein levels of P-Smad2/3 normalized to total levels of Smad2/3 or GAPDH. Error bars represent the means ± SD, . versus C-SiNC group; versus T-SiNC group.
(a) |
(b) |