a, Knockdown analyses by FACS of mice transduced with sgScramble, sgIfngr1, sgIfngr2 and sgStat1. n = 5 mice per group. n = 4 sgScramble STAT1 mice. Unpaired two-tailed t-test. b, Control analyses of microglial expression following astrocyte knockdown. n = 5 sgIfngr2, n = 5 sgStat1, n = 6 mice otherwise. Unpaired two-tailed t-test. c, Analysis of Cxcl10 expression in astrocytes isolated from Ifngr1+/+, Ifngr1−/− or sgIfngr1 mice 29 days after EAE induction. n = 11 Ifngr1+/+, n = 6 Ifngr1−/−, n = 5 sgIfngr1. Unpaired two-tailed t-test. d, Analysis of astrocyte chemokine and T cell chemokine receptor expression from knockdown mice 29 days after EAE induction. n = 4 sgStat1, n = 4 sgIfngr2 Ccl20, n = 5 mice otherwise. Unpaired two-tailed t-test per condition. Data are mean ± s.e.m.