Levels of cytokines in supernatants of Lpsn and Lpsd macrophages stimulated with different agents. Macrophages (106/ml) of Sn, BALB/c (Balb), Cr, and BALB/c/l (Balb/l) mice were cultured with LPS (0.1 μg/ml), serovar Typhimurium (Stm; 100 μg/ml), S. aureus (Sa; 100 μg/ml), and dsRNA (10 μg/ml) for 24 h. The cytokines in cell-free supernatants were measured as described in Materials and Methods. The values are means of duplicates. One representative experiment of four is shown.