Figure 1.

T cell responses induced by β₁AR_Ac peptides. Lymph node cells (LNCs) obtained from animals immunized with β₁AR_Ac 171–190, β₁AR_Ac 181–200, and β₁AR_Ac 211–230 were restimulated with or without the corresponding peptides and RNase 43–56/HEL 46–61 (negative control) for 2 days. After pulsing with ³[H]-thymidine for 16 h, proliferative responses were measured as cpm. Mean ± SEM values derived from three to four individual experiments, each involving three to eight mice are shown. *P < 0.05 and **P < 0.01 vs. negative controls.