Research Article
Panax notoginseng Saponin Promotes Bone Regeneration in Distraction Osteogenesis via the TGF-β1 Signaling Pathway
Figure 4
PNS regulates osteogenic differentiation of BMSCs via the TGF-β1/SMAD signaling pathway. (a) Overexpression and inhibition of TβR-II were confirmed via qRT-PCR. (b, c) Following TβR-II knockdown or overexpression, the mRNA levels of the pathway-related genes were significantly altered. (d) WB analysis for the expression levels of SMAD2, p-SMAD2, SMAD3, p-SMAD3, and PPM1A treated with lentivirus. (e, f) TβR-II overexpression enhanced osteogenic differentiation, while silencing impairs such capability. (e) ALP staining and ALP activity assay. (f) Alizarin red staining. OE-NC and TβR-II-OE groups or NC-shRNA and TβR-II-inhibitor groups were compared via Student’s t-tests. Data are means ± SD. and