Comparative Analysis of Mesenchymal Stromal Cells Biological Properties

Table 1

Flow cytometry characterization of MSC populations.

Cell population	Passage number	CD45; (%)	CD105; (%)	CD90; (%)	CD73; (%)	CD146; (%)	CD133; (%)	CD34; (%)	CD31; (%)	MSC (%)	EPC (%)	EC (%)
L-MSC	0	1.5	96	97	98	91	0.5	1.7	2.4	95	0.3	2.5
	3	0.1	95	98	97	93	0.3	0.3	0.3	95	<0.1	0.7
O-MSC	0	18	74	86	90	72	0.4	2.3	2.8	64	<0.1	<0.1
	3	0	83	92	89	98	0.1	3.1	0.9	80	<0.1	<0.1
BM-MSC	0	8	93	95	96	94	1.1	3.5	0.5	94	0	<0.1
	3	4	98	98	99	93	0.8	0.2	0.3	98	0	0
HFF	u.d.	0	100	100	100	31	0	n.d.	0	100	0	0

MSCs were defined by coexpression of CD105, CD90, and CD73; EPC were defined by coexpression of CD133, CD146, CD105, and CD31; and EC were defined by coexpression of CD34, CD146, CD105, and CD31. The reported values represent intensity mean of two independent experiments. u.d.: undefined; n.d.: not determined.