Figure 8. Proinflammatory CD49d+ Tregs accumulate in the CSF of people with MS.
(A and B) Frozen PBMCs of HD and people with different MS types were thawed and studied using flow cytometry (gating in Supplemental Figure 11). (A) FlowSOM analysis on CD4 T cells identified 2 subpopulations of Tregs. (B) Heatmap related to the FlowSOM analysis. Color scale as percentiles. n = 26 (HD), n = 24 (uRRMS), n = 25 (flRRMS), n = 23 (uSPMS). (C) Fresh, paired blood, and CSF samples were collected from persons with uRRMS at diagnosis and studied using flow cytometry. Percentage expression of different migratory molecules within single, live, CD4+CD25hiCD127lo Tregs illustrated that CD49d+ Tregs are enriched in the CSF. Gating in Supplemental Figure 12. Horizontal bars represent mean of the group. n = 5; 2-way ANOVA with Bonferroni’s multiple-comparison test. ***P < 0.001.
