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Morphology of expanded hBM-MSCs after 24 hours (A) and 7 days (B) cell culture in vitro. The immunohistochemical analysis of hBM-MSCs positively stained for STEM121 (C), CD44 (D), CD73 (E), and CD90 (F) proteins (green); cell nuclei were labeled with Hoechst (blue). Scale bar =50 μm.
Abbreviation: hBM-MSCs, human bone marrow mesenchymal stem cells.
