Table 1. Enrichment in CD4⁺CD25^high Treg in cultures containing various RAPA concentrations^a.

	% CD4+CD25high T cells
	range	mean±SD
No RAPA	16–22	19±8
+ RAPA 1 nM	71–79	76±4
+ RAPA 10 nM	76–86	81±6
+ RAPA 50 nM	85–95	87±6
+ RAPA 100 nM	91–99	96±9

^aThe data are results of flow cytometry analyses using 3 week cultures of CD4⁺CD25^high T cells obtained from 6 subjects and expanded in the presence or absence of RAPA. The gate was set on the CD4⁺CD25^high subset of cultured cells.