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Direct co-culture of MSCs and ECs. (A) DiI-labeled MSCs co-cultured with unlabeled ECs (heterogeneous) or MSCs (homogeneous) were isolated via FACS sorting every 2 days. (B) Real-time RT-PCR analysis of PECAM and SMActin expression by MSCs isolated from co-cultures with (●) macroECs, (○) microECs, or (▲) MSCs. Error bars represent 95% confidence-intervals.
