Fig. 3

Enforced TAZ overexpression enhances osteogenic differentiation of ADSCs in vitro. a Transcriptional coactivator with PDZ-binding motif (TAZ) overexpression (OP) in ADSCs infected with lentiviral particles containing human TAZ cDNA sequence was verified by Western blot. Representative images of Western blots from three independent experiments are shown. b Accelerated cell proliferation was detected in TAZ-overexpressing ADSCs compared with control cells infected with empty lentiviral particles via MTT assay. c Enhanced osteogenic differentiation of ADSCs was detected and quantified by alkaline phosphatase (ALP) activity assay following TAZ overexpression in ADSCs induced in vitro at day 7. d Increased mineralization in TAZ-overexpressing ADSCs cultured in osteoinductive medium was observed via Alizarin Red staining at days 7 and 14. Scale bar = 50 μm. e Significantly enhanced expression of TAZ as well as the osteogenic markers osteopontin (OPN) and osteocalcin (OCN) in TAZ-overexpressing ADSCs cultured in osteoinductive medium at days 7, 14, and 21 was detected by Western blot. Representative images of Western blots from three independent experiments are shown. Data shown here are mean ± SD from three independent experiments; ^#P ˃ 0.05, *P < 0.05, **P < 0.01, by Student’s t test. GAPDH glyeraldehyde-3-phosphate dehydrogenase, OD optical density, Runx2 runt-related transcription factor 2