Fig. 1

Characterization of hypoxic UC-MSCs and AD-MSCs. (A) Cellular morphology of UC-MSCs and AD-MSCs under hypoxic conditions with 5% oxygen (scale bar, 2 mm). (B) Analysis of MSC marker expression by flow cytometry. (C) Differentiation ability of MSCs into osteoblasts (scale bar, 500 μm), chondrocytes (scale bar, 500 μm), and adipocytes (scale bar, 100 μm) via bright-field microscopy.