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Enhanced osteogenic and chondrogenic differentiation of mesodermal lineage-induced hESCs. Immunocytochemistry for human osteocalcin (red) and human collagen type II (green) in hMSC-CM-treated hESCs and untreated hESCs following osteogenic or chondrogenic differentiation induction for 14 days. The nuclei were stained with DAPI (blue). The scale bars indicate 100 μm. DAPI, 4,6 diamidino-2-phenylindole. Color images available online at www.liebertpub.com/tea
