Table 3.

Antigen expression (expressed as percentage of positive cells by the total number of cells).

Cells	Passage no.	CD31	CD34	CD45	NOS	Alpha-actin	Smoothelin
Outgrown cells cultivated with
EGM-2	ne	34.8 ± 13	89.2 ± 4	7.7 ± 2	19.2 ± 3	3.1 ± 3	0.9 ± 1
	4	83.9 ± 8	85.8 ± 8	0 ± 0	70.1 ± 11	1.1 ± 1	0.2 ± 0.3
	ne	11.2 ± 17	76.0 ± 3	11.2 ± 5	12.2 ± 11	52.6 ± 19	44.9 ± 9
	4	3.1 ± 0.1	61.7 ± 1	0 ± 0	2.5 ± 1	88.0 ± 5	56.6 ± 12

NOS: NO synthase; ne: not expanded (confluent cultures before the first passage).