Fig. 3From: Co-overexpression of TGF-β and SOX9 via rAAV gene transfer modulates the metabolic and chondrogenic activities of human bone marrow-derived mesenchymal stem cellsBiochemical analyses in chondrogenically-induced hMSCs upon administration of rAAV vectors. hMSC aggregates were transduced with the various vectors or vector combinations as described in Fig. 1 and in Methods. Samples were processed after 21 days to monitor the DNA a and proteoglycan contents b as described in Methods. *,**Statistically significant compared with group 1 (rAAV-lacZ) (*P ≤0.050, **P ≤0.010). TGF-β transforming growth factor betaBack to article page