Table 1. Development of endothelial... | American Society of Hematology

Table 1.

Development of endothelial colonies from cord blood cell subsets

	No. of endothelial colonies
Subset	Exp no. 1	Exp no. 2	Exp no. 3	Exp no. 4
CD34⁺	6	7	8	9
CD34⁺CD11b⁺	5	12	4	7
CD34⁺CD11b^-	0	0	0	0*

	No. of endothelial colonies
Subset	Exp no. 1	Exp no. 2	Exp no. 3	Exp no. 4
CD34⁺	6	7	8	9
CD34⁺CD11b⁺	5	12	4	7
CD34⁺CD11b^-	0	0	0	0*

Number of endothelial colonies developing at 7 days of cultures from 1 × 10⁵ CD34⁺, CD34⁺CD11b⁺, and CD34⁺CD11b^- cord blood subsets, purified by cell sorting. Each experiment represents the analysis of cell subsets purified from individual cord blood donors. All cultures were monitored for up to 6 weeks. Scoring for the presence of endothelial colonies was performed in double blind by 2 independent investigators at 7 days, a culture period at which individual colonies could still be identified before becoming confluent.

Exp indicates experiment.

One experiment in which CD34⁺CD11b^- cells developed 1 small endothelial colony after 3 weeks of culture.

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