Table 4.

Lptn differentially regulates IL-2 but not IL-4 secretion in DC4+ and CD8+ T-cell subsets

Stimulus CD4+ subset4-150CD8+ 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+ subset4-150CD8+ 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.”

F4-150

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.

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