Figure 6. CTLA4-Ig does not inhibit inflammation in NOS2−/− mice.
C57BL/6 or NOS2−/− mice were sensitized and challenged with OVA. CTLA4-Ig was administered at the time of challenge and specimens collected 3 days later. CTLA4-Ig effectively suppressed allergic airway inflammation in the C57BL/6 mice but not the NOS2−/− mice as shown by A) BAL cell number, B) differential analysis and C) histology of H & E stained lung sections. Data are representative of 2 independent experiments. N= 5 mice per group in each experiment.