Lptn differentially regulates IL-2 but not IL-4 secretion in DC4+ and CD8+ T-cell subsets
Stimulus . | CD4+ subset4-150 . | CD8+ subset4-150 . | ||
---|---|---|---|---|
IL-2 (day 1) . | IL-4 (day 3) . | IL-2 (day 1) . | IL-4 (day 3) . | |
CD3 | 0.44 | 0.75 | 0.18 | 0.87 |
CD3 + Lptn | 0.09 | 0.75 | 0.3 | 0.95 |
CD3 + Lptn + anti-Lptn | 0.39 | 0.74 | 0.21 | 0.84 |
CD3 + RANTES | 0.44 | 0.67 | 0.21 | 0.88 |
CD3 + RANTES + anti-RANTES | 0.38 | 0.63 | 0.18 | 0.93 |
CD3 + CD28 | 2.76 | 0.45 | 2.6 | 0.79 |
Stimulus . | CD4+ subset4-150 . | CD8+ subset4-150 . | ||
---|---|---|---|---|
IL-2 (day 1) . | IL-4 (day 3) . | IL-2 (day 1) . | IL-4 (day 3) . | |
CD3 | 0.44 | 0.75 | 0.18 | 0.87 |
CD3 + Lptn | 0.09 | 0.75 | 0.3 | 0.95 |
CD3 + Lptn + anti-Lptn | 0.39 | 0.74 | 0.21 | 0.84 |
CD3 + RANTES | 0.44 | 0.67 | 0.21 | 0.88 |
CD3 + RANTES + anti-RANTES | 0.38 | 0.63 | 0.18 | 0.93 |
CD3 + CD28 | 2.76 | 0.45 | 2.6 | 0.79 |
The CD4+ and CD8+ T-cell subsets were purified before activation. They were then activated with the indicated stimulus for the indicated times, after which supernatants were collected and analyzed for IL-2 and IL-4 contents by ELISA, as stated in “Materials and methods.”
Data are expressed as concentration mean values in ng/mL and are representative of 4 and 3 independent experiments for the CD4+ and CD8+ T-cell subsets, respectively, except for the conditions using RANTES, where 2 experiments were done for both subsets.