Table 1.
Results are expressed in pg/ml IL-12p70 in culture supernatants; 1 × 106 CD11c+ CD8+ splenic purified DC (Expt 1 and 2) or total CD11c+ cells (Expt 3) per ml were co-cultured or not on thymic fibroblast monolayers for 24 hr and then stimulated with PSB-2 for a further 24 hr.