Fig. 7From: Different phenotypes and chondrogenic responses of human menstrual blood and bone marrow mesenchymal stem cells to activin A and TGF-β3a Collagen type II (COL2A1) and b aggrecan (ACAN) gene expression in MenSCs and BMMSCs after stimulating chondrogenic differentiation for 21 days with activin A (50 ng/mL), TGF-β3 (10 ng/mL), and both TGF-β3 and activin A, where activin A was added only during first 2 days. Control cells were cultivated in the same chondrogenic medium without growth factors. Relative transcript level after normalization to geometric mean of B2M and RPS9 housekeeping genes. Data are presented as mean ± SD. Horizontal bars represent p ≤ 0.05Back to article page