Induction of IL-12 p40 and p70 by a Panel of Stimuli Is Impaired in PBMC From HIV-Infected Patients Compared With Healthy Controls
Conditions . | HIV− . | HIV+ . | P Value . | ||||
---|---|---|---|---|---|---|---|
Mean . | SEM . | n . | Mean . | SEM . | n . | ||
p40 | |||||||
Medium | 138 | 73 | 15 | 52 | 12 | 20 | .126 |
S aureus | 10,044 | 2,232 | 15 | 3,384 | 864 | 20 | .002 |
LPS | 1,962 | 1,312 | 15 | 352 | 38 | 21 | .098 |
IFN-γ/LPS | 124,510 | 15,416 | 15 | 93,624 | 14,326 | 15 | .163 |
OK432 | 14,464 | 6,610 | 15 | 4,820 | 774 | 21 | .049 |
LTA | 589 | 203 | 7 | 179 | 50 | 6 | .096 |
IFN-γ/LTA | 45,788 | 11,400 | 7 | 7,348 | 1,372 | 6 | .010 |
p70 | |||||||
Medium | 11 | 2 | 14 | 10 | 2 | 21 | .945 |
S aureus | 53 | 11 | 14 | 10 | 2 | 21 | <.0001 |
LPS | 24 | 5 | 14 | 15 | 3 | 21 | .074 |
IFN-γ/LPS | 14,610 | 2,882 | 14 | 9,484 | 1,755 | 18 | .116 |
OK432 | 156 | 111 | 14 | 37 | 11 | 21 | .157 |
LTA | 19 | 3 | 7 | 15 | 2 | 6 | .258 |
IFN-γ/LTA | 3,136 | 1,006 | 7 | 689 | 216 | 6 | .050 |
Conditions . | HIV− . | HIV+ . | P Value . | ||||
---|---|---|---|---|---|---|---|
Mean . | SEM . | n . | Mean . | SEM . | n . | ||
p40 | |||||||
Medium | 138 | 73 | 15 | 52 | 12 | 20 | .126 |
S aureus | 10,044 | 2,232 | 15 | 3,384 | 864 | 20 | .002 |
LPS | 1,962 | 1,312 | 15 | 352 | 38 | 21 | .098 |
IFN-γ/LPS | 124,510 | 15,416 | 15 | 93,624 | 14,326 | 15 | .163 |
OK432 | 14,464 | 6,610 | 15 | 4,820 | 774 | 21 | .049 |
LTA | 589 | 203 | 7 | 179 | 50 | 6 | .096 |
IFN-γ/LTA | 45,788 | 11,400 | 7 | 7,348 | 1,372 | 6 | .010 |
p70 | |||||||
Medium | 11 | 2 | 14 | 10 | 2 | 21 | .945 |
S aureus | 53 | 11 | 14 | 10 | 2 | 21 | <.0001 |
LPS | 24 | 5 | 14 | 15 | 3 | 21 | .074 |
IFN-γ/LPS | 14,610 | 2,882 | 14 | 9,484 | 1,755 | 18 | .116 |
OK432 | 156 | 111 | 14 | 37 | 11 | 21 | .157 |
LTA | 19 | 3 | 7 | 15 | 2 | 6 | .258 |
IFN-γ/LTA | 3,136 | 1,006 | 7 | 689 | 216 | 6 | .050 |
PBMC from controls and patients were incubated at 2 × 106/mL for 16 h ± IFN-γ followed by 24 hours of stimulation with S aureus, LPS, OK432, LTA, or medium alone. Cell-free supernatants were harvested and assayed for IL-12 p40 and p70 via RIA. P values were calculated via an unpaired student’st-test and compared with the control group versus the patient group in each category of stimulation.