Figure 1: Characterization of rat ADSCs. (a) Phase-contrast images showing the fibroblastic morphology of ADSCs. Scale bar = 100 μm. (b-e) Flow cytometric analysis showing that cultured ADSCs expressed CD90 and CD44, but not CD34 or CD45. Black curve indicates ADSCs stained with isotype-matched fluorescent dye-conjugated IgG as the negative control; gray curve indicates ADSCs stained with fluorescent dye-conjugated primary antibodies. ADSC: adipose tissue-derived stem cell.