Treatment with PF-04957325 suppresses leukocyte infiltration into the spinal cord. Mice with EAE scores of at least 1 were treated with the vehicle control or PF-04957325 three times daily, for 6 to 13 days. The data represent the total number of mononuclear cells in the spinal cord (CNS) after Percoll gradient isolation (A) (n =10 mice per group, five independent experiments; * p = 0.015)), in cervical lymph nodes (CELN) (B), and spleens (C) (n = 9 mice per group, mean ± SEM of four independent experiments) counted by trypan blue exclusion assay. The horizontal lines indicate comparisons between each pair of vehicle control- or PF-04957325-treated mice enrolled in the treatment regimen at the same time.