Fig. 1From: Triptolide mitigates the inhibition of osteogenesis induced by TNF-α in human periodontal ligament stem cells via the p-IκBα/NF-κB signaling pathway: an in-vitro studyIsolation, cultivation and characterization of hPDLSCs. (A) hPDLSCs showed a long spindle shape and arranged in feathers. Scale bar: 200 μm. (B) After osteogenic differentiation induction, mineralized nodules were observed. Scale bar: 100 μm. (C) After adipogenic differentiation induction, lipid droplets were observed. Scale bar: 100 μm. (D, E, F, G) CD34, CD44, CD45 and CD105 expression were determined. CD44 (E) and CD105 (G) were high expression, while the CD34 (D) and CD45 (F) were low expressionBack to article page