Figure 3.
Defective T cell proliferation and IL-2 production upon stimulation with TCR-specific antigen. Purified CD4+ T cells from AND TCR transgenic Rac2−/− or control mice were stimulated with various doses of MCC peptide in the presence of B10BR splenic APCs (A) or I-EK + CH27 cells (B and C). [3H]Thymidine was pulsed 48 h after stimulation and harvested 12 h later (A and B). To measure IL-2 production, supernatant were harvested 24 h after stimulation and the amount of IL-2 were determined by ELISA (C). Data represent one of four (A) or one of two (B and C) separate experiments.