Table S1: Lists of antibodies and TaqMan gene expression assays used in the studies. Table S1A lists the combinations of antibodies used along with corresponding flourochrome conjugates, clone-names and suppliers. Table S1B lists the TaqMan Gene Expression Assays used in gene expression studies of peripheral blood mononuclear cell (PBMC) subsets, cerebrospinal fluid (CSF) cells and PBMCs and whole blood. Table S1A Antigen presenting cells (APC) T-cells Antigen CD1c (BDCA-1) CD303 (BDCA-2) CD19 CD14 Conjugate PerCP-Cy5.5 FITC PE-Cy7 Qdot 605 Clone L161 AC144 HIB19 TüK4 Miltenyi Biolegend Invitrogen APC Tube 1 CD209 (DC-SIGN) CD83 CCR7 APC PE PB 9E9A8 HB15e TG8/CCR7 Biolegend Biolegend Biolegend APC Tube 2 CD38 CD138 CD27 APC PE V450 HIT2 MI15 M-T271 Biolegend Biolegend BD Biosciences CD40 CD70 CD86 APC PE PB HB14 Ki-24 IT2.2 Biolegend BD Biosciences Biolegend APC Tube 4 CD275 (ICOSL) CD252 (OX40L) CD80 Alexa 647 PE V450 MIH11 11C3.1 L307.4 AbD Serotec Biolegend BD Biosciences APC Tube 5 IL15 PE IC2471P R&D systems APC tube 6 CD274 (PDL1) CD273 (PDL2) APC PE 29E.2A3 176611 R&D systems All APC tubes APC Tube 3 Supplier Biolegend Biolegend Antigen CD3 CD4 CD8 Conjugate APC-Cy7 PE-Cy7 eFluor 605NC Clone HIT3a RPA-T4 RPA-T8 PerCP-Cy5.5 APC FITC PE HP-3G10 Biolegend T-cell tube 1 CD161 IL12RB2 IL23R CCR2 305719 218213 48607 R&D systems R&D systems R&D systems PerCP-Cy5.5 APC FITC PB TG2/CXCR5 T-cell tube 2 CXCR5 CCR6 CCR5 CXCR3 Biolegend BD Biosciences PerCP-Cy5.5 APC FITC PE PB TG2/CXCR5 Biolegend T-cell tube 3 CXCR5 CD134 (OX40) CD278 (ICOS) CD279 (PD-1) CD154 (CD40L) 443318 ISA-3 EH12.2H7 24-31 R&D systems eBioscience Biolegend Biolegend T-cell tube 4 CD25 CD127 CD31 PerCP-Cy5.5 FITC PB BC96 eBioRDR5 WM59 Biolegend eBioscience Biolegend All T-cell tubes 11A9 45531 TG1/CXCR3 Supplier Biolegend Biolegend eBioscience R&D systems Biolegend Table S1B Gene Assay number PBMC subset studies UBE2D2 CASC3 UBC HLX1 TBX21 GATA3 RORC IFNG IGJ IL4 IL6 IL10 IL12A IL12B IL17A IL1B IL21 IL23 TGFB TNFA ICOS IL21R IL23R LTA LTB LTBR TNFRSF14 TNFSF14 Hs00366152_m1 Hs00904832_m1 Hs00824723_m1 Hs00172035_m1 Hs00203436_m1 Hs00231122_m1 Hs01076112_m1 Hs99999041_m1 Hs00376160_m1 Hs00174122_m1 Hs00174131_m1 Hs00961622_m1 Hs00168405_m1 Hs00233688_m1 Hs00174383_m1 Hs00174097_m1 Hs00222327_m1 Hs00372324_m1 Hs99999918_m1 Hs00174128_m1 Hs00359999_m1 Hs00986138_m1 Hs00332759_m1 Hs00236874_m1 Hs00242739_m1 Hs01101194_m1 Hs00998604_m1 Hs00542477_m1 • • CSF cells and PBMC studies Whole blood studies • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • •