Figure 1. TNFAIP8-knockout mice are resistant to lethal Listeria monocytogenes infection.
Wild type (n=5) and TNFAIP8 knockout mice (n=7) were infected with 2x105 CFUs of L. monocytogenes through the tail vein. (A) Mouse Kaplan-Meier survival curve after L. monocytogenes injection (P = 0.01). (B) Changes in body weight following infection (P = 0.04). Mice were sacrificed at day 3 post infection and their livers, spleens, and sera collected. (C) Spleen and liver bacterial load was measured by a colony-forming assay. (D) Serum levels of aspartate aminotransferase (AST) and alanine aminotransferase (ALT). (E) Serum TNFα and IL-6 levels were measured by ELISA. The results are representative of at least two independent experiments. N.S., not significant; * P < 0.05.