Figure 4.
Blockade of TGFβ recovered normal Th1 responses against the MOG peptide in IL-17RA −/− mice. Wild type mice (WT), IL-17RA +/− (Het), and IL-17RA −/− littermates were immunized with MOG35–55 peptide to elicit EAE. Anti-TGFβ antibodies were administered at day 5 and day 9. At ten days post-immunization, lymphocytes were isolated from draining lymph nodes and stimulated with MOG35–55 peptide as described in Materials and Methods. Frequencies of CD4+ T cells that made IL-17 (A) (C) or IFN-γ (B) (D) among total lymphocytes were determined by intracellular cytokine staining assay. More than seven mice were used in each experimental group. Student T test was performed.