Fig. 2From: Tissue source determines the differentiation potentials of mesenchymal stem cells: a comparative study of human mesenchymal stem cells from bone marrow and adipose tissueDifference in osteogenesis ability between ATSCs and BMSCs in vitro. a–d Total RNA extracted from ATSCs and BMSCs or cells subjected to OIM for 7 days. Relative expression levels of ALP, Runx2, OPN, and OCN checked by qRT-PCR. β-actin as an internal control. Data expressed as mean ± SD (n = 3). *p < 0.05, compared with MSCs in OIM; #p < 0.05, compared with MSCs in α-MEM. e, f Alizarin Red S staining of calcium deposits formed by ATSCs and BMSCs. ATSCs and BMSCs cultured in OIM for 14 days, then cells fixed and stained with Alizarin Red S. ALP: alkaline phosphatase, ATSC: adipose tissue-derived MSC, BMSC: bone marrow-derived MSC, MEM: minimum essential medium, MSC: mesenchymal stem cell, OCN: Osteocalcin, OIM: osteogenic induction medium, OPN: Osteopontin, Runx2: runt-related transcription factor 2Back to article page