TABLE 5.

Monocyte HLA-DR expression following overnight culture with IL-10

Isolation no.	Monocyte HLA-DR expression (mean channel no.) in overnight monocyte cultures
	RPMI-FBS		With IL-10
	Autoa	HLA-DRb	Auto	HLA-DRc
12	0.340	20.0	0.600	0.646 (25.0%)d, 10.5 (75.0%)e
14	0.637	21.4	3.68	3.50
16	0.514	10.8	0.575	0.908 (20.8%)d, 6.14 (79.2%)e
Meanf ± SEM		16.9 ± 3.3g		0.066 ± 0.148d, 5.10 ± 2.92e

^aMean channel number of autofluorescence (FL1 log). 

^bMean channel number of anti-HLA-DR–FITC signal. 

^cIn isolations 12 and 16, two populations were observed with respect to HLA-DR expression. 

^dLow expression. 

^eHigh expression. 

^fCorrected for autofluorescence. 

^gStatistically significant HLA-DR expression relative to autofluorescence; P < 0.050.