PMID- 36792371 OWN - NLM STAT- MEDLINE DCOM- 20230223 LR - 20230226 IS - 2332-7812 (Electronic) IS - 2332-7812 (Linking) VI - 10 IP - 3 DP - 2023 May TI - Risk HLA Variants Affect the T-Cell Repertoire in Multiple Sclerosis. LID - 10.1212/NXI.0000000000200093 [doi] LID - e200093 AB - BACKGROUND AND OBJECTIVES: The major histocompatibility complex (MHC) locus has a predominant role in the genetic predisposition to multiple sclerosis (MS), with 32 associations found to be involved. We aimed to investigate the impact of MHC MS-risk alleles on T-cell repertoire in patients with MS. METHODS: We studied 161 untreated patients with relapsing-remitting MS for whom Class I and II human leukocyte antigen (HLA) alleles were inferred from whole-genome genotyping data, and T-cell receptor (TCR) CDR3 sequences were obtained through next-generation sequencing. T-cell repertoire features including diversity, public clones, and architecture were evaluated. RESULTS: We identified 5 MS-risk loci associated with TCR diversity: HLA-DRB1*15:01 (7.65 x 10(-3)), rs9271366 (1.96 x 10(-3)), rs766848979 A (1.89 x 10(-2)), rs9277626 (2.95 x 10(-2)), and rs11751659 (1.92 x 10(-2)), with evidence of expanded clonotypes in carriers of risk alleles. Moreover, HLA-DRB1*15:01 (4.99 x 10(-3)), rs9271366 (6.54 x 10(-3)), rs1049079 C (4.37 x 10(-2)), AA DQBeta1 position -5 L (1.05 x 10(-3)), and AA DQBeta1 position 221 Q (9.39 x 10(-4)) showed an association with the CDR3 aminoacidic sequence architecture, suggesting an impact on the antigen recognition breadth as well. Evaluating the sharing of clones across MS-risk allele carrier individuals revealed the presence of highly shared clonotypes predicted to target viral antigens, including Epstein-Barr virus. DISCUSSION: Our study supports the association between MHC-risk alleles and macrofeatures of the T-cell repertoire in the context of MS. Further studies are needed to understand the underlying molecular mechanisms. CI - Copyright (c) 2023 The Author(s). Published by Wolters Kluwer Health, Inc. on behalf of the American Academy of Neurology. FAU - Sorosina, Melissa AU - Sorosina M AD - From the Laboratory of Neurological Complex Disorders (M.S., S.S., L.F., E.M., F.C., A.G., M.C., F.E.), Division of Neuroscience, Institute of Experimental Neurology (INSPE), IRCCS San Raffaele Scientific Institute; Neurology and Neurorehabilitation Unit (L.F., A.G., M.C., M.L., V.M., M.F., F.E.), IRCCS San Raffaele Scientific Institute, Milan, Italy; Vita-Salute San Raffaele University (M.F.); Neurophysiology Unit (M.F.), IRCCS San Raffaele Scientific Institute; and Neuroimaging Research Unit, Division of Neuroscience, Institute of Experimental Neurology (INSPE) (P.F.), IRCCS San Raffaele Scientific Institute, Milan, Italy. FAU - Santoro, Silvia AU - Santoro S AD - From the Laboratory of Neurological Complex Disorders (M.S., S.S., L.F., E.M., F.C., A.G., M.C., F.E.), Division of Neuroscience, Institute of Experimental Neurology (INSPE), IRCCS San Raffaele Scientific Institute; Neurology and Neurorehabilitation Unit (L.F., A.G., M.C., M.L., V.M., M.F., F.E.), IRCCS San Raffaele Scientific Institute, Milan, Italy; Vita-Salute San Raffaele University (M.F.); Neurophysiology Unit (M.F.), IRCCS San Raffaele Scientific Institute; and Neuroimaging Research Unit, Division of Neuroscience, Institute of Experimental Neurology (INSPE) (P.F.), IRCCS San Raffaele Scientific Institute, Milan, Italy. FAU - Ferre, Laura AU - Ferre L AD - From the Laboratory of Neurological Complex Disorders (M.S., S.S., L.F., E.M., F.C., A.G., M.C., F.E.), Division of Neuroscience, Institute of Experimental Neurology (INSPE), IRCCS San Raffaele Scientific Institute; Neurology and Neurorehabilitation Unit (L.F., A.G., M.C., M.L., V.M., M.F., F.E.), IRCCS San Raffaele Scientific Institute, Milan, Italy; Vita-Salute San Raffaele University (M.F.); Neurophysiology Unit (M.F.), IRCCS San Raffaele Scientific Institute; and Neuroimaging Research Unit, Division of Neuroscience, Institute of Experimental Neurology (INSPE) (P.F.), IRCCS San Raffaele Scientific Institute, Milan, Italy. FAU - Mascia, Elisabetta AU - Mascia E AD - From the Laboratory of Neurological Complex Disorders (M.S., S.S., L.F., E.M., F.C., A.G., M.C., F.E.), Division of Neuroscience, Institute of Experimental Neurology (INSPE), IRCCS San Raffaele Scientific Institute; Neurology and Neurorehabilitation Unit (L.F., A.G., M.C., M.L., V.M., M.F., F.E.), IRCCS San Raffaele Scientific Institute, Milan, Italy; Vita-Salute San Raffaele University (M.F.); Neurophysiology Unit (M.F.), IRCCS San Raffaele Scientific Institute; and Neuroimaging Research Unit, Division of Neuroscience, Institute of Experimental Neurology (INSPE) (P.F.), IRCCS San Raffaele Scientific Institute, Milan, Italy. FAU - Clarelli, Ferdinando AU - Clarelli F AD - From the Laboratory of Neurological Complex Disorders (M.S., S.S., L.F., E.M., F.C., A.G., M.C., F.E.), Division of Neuroscience, Institute of Experimental Neurology (INSPE), IRCCS San Raffaele Scientific Institute; Neurology and Neurorehabilitation Unit (L.F., A.G., M.C., M.L., V.M., M.F., F.E.), IRCCS San Raffaele Scientific Institute, Milan, Italy; Vita-Salute San Raffaele University (M.F.); Neurophysiology Unit (M.F.), IRCCS San Raffaele Scientific Institute; and Neuroimaging Research Unit, Division of Neuroscience, Institute of Experimental Neurology (INSPE) (P.F.), IRCCS San Raffaele Scientific Institute, Milan, Italy. FAU - Giordano, Antonino AU - Giordano A AD - From the Laboratory of Neurological Complex Disorders (M.S., S.S., L.F., E.M., F.C., A.G., M.C., F.E.), Division of Neuroscience, Institute of Experimental Neurology (INSPE), IRCCS San Raffaele Scientific Institute; Neurology and Neurorehabilitation Unit (L.F., A.G., M.C., M.L., V.M., M.F., F.E.), IRCCS San Raffaele Scientific Institute, Milan, Italy; Vita-Salute San Raffaele University (M.F.); Neurophysiology Unit (M.F.), IRCCS San Raffaele Scientific Institute; and Neuroimaging Research Unit, Division of Neuroscience, Institute of Experimental Neurology (INSPE) (P.F.), IRCCS San Raffaele Scientific Institute, Milan, Italy. FAU - Cannizzaro, Miryam AU - Cannizzaro M AD - From the Laboratory of Neurological Complex Disorders (M.S., S.S., L.F., E.M., F.C., A.G., M.C., F.E.), Division of Neuroscience, Institute of Experimental Neurology (INSPE), IRCCS San Raffaele Scientific Institute; Neurology and Neurorehabilitation Unit (L.F., A.G., M.C., M.L., V.M., M.F., F.E.), IRCCS San Raffaele Scientific Institute, Milan, Italy; Vita-Salute San Raffaele University (M.F.); Neurophysiology Unit (M.F.), IRCCS San Raffaele Scientific Institute; and Neuroimaging Research Unit, Division of Neuroscience, Institute of Experimental Neurology (INSPE) (P.F.), IRCCS San Raffaele Scientific Institute, Milan, Italy. FAU - Lucia, Moiola AU - Lucia M AD - From the Laboratory of Neurological Complex Disorders (M.S., S.S., L.F., E.M., F.C., A.G., M.C., F.E.), Division of Neuroscience, Institute of Experimental Neurology (INSPE), IRCCS San Raffaele Scientific Institute; Neurology and Neurorehabilitation Unit (L.F., A.G., M.C., M.L., V.M., M.F., F.E.), IRCCS San Raffaele Scientific Institute, Milan, Italy; Vita-Salute San Raffaele University (M.F.); Neurophysiology Unit (M.F.), IRCCS San Raffaele Scientific Institute; and Neuroimaging Research Unit, Division of Neuroscience, Institute of Experimental Neurology (INSPE) (P.F.), IRCCS San Raffaele Scientific Institute, Milan, Italy. FAU - Martinelli, Vittorio AU - Martinelli V AD - From the Laboratory of Neurological Complex Disorders (M.S., S.S., L.F., E.M., F.C., A.G., M.C., F.E.), Division of Neuroscience, Institute of Experimental Neurology (INSPE), IRCCS San Raffaele Scientific Institute; Neurology and Neurorehabilitation Unit (L.F., A.G., M.C., M.L., V.M., M.F., F.E.), IRCCS San Raffaele Scientific Institute, Milan, Italy; Vita-Salute San Raffaele University (M.F.); Neurophysiology Unit (M.F.), IRCCS San Raffaele Scientific Institute; and Neuroimaging Research Unit, Division of Neuroscience, Institute of Experimental Neurology (INSPE) (P.F.), IRCCS San Raffaele Scientific Institute, Milan, Italy. FAU - Filippi, Massimo AU - Filippi M AUID- ORCID: 0000-0002-5485-0479 AD - From the Laboratory of Neurological Complex Disorders (M.S., S.S., L.F., E.M., F.C., A.G., M.C., F.E.), Division of Neuroscience, Institute of Experimental Neurology (INSPE), IRCCS San Raffaele Scientific Institute; Neurology and Neurorehabilitation Unit (L.F., A.G., M.C., M.L., V.M., M.F., F.E.), IRCCS San Raffaele Scientific Institute, Milan, Italy; Vita-Salute San Raffaele University (M.F.); Neurophysiology Unit (M.F.), IRCCS San Raffaele Scientific Institute; and Neuroimaging Research Unit, Division of Neuroscience, Institute of Experimental Neurology (INSPE) (P.F.), IRCCS San Raffaele Scientific Institute, Milan, Italy. FAU - Esposito, Federica AU - Esposito F AD - From the Laboratory of Neurological Complex Disorders (M.S., S.S., L.F., E.M., F.C., A.G., M.C., F.E.), Division of Neuroscience, Institute of Experimental Neurology (INSPE), IRCCS San Raffaele Scientific Institute; Neurology and Neurorehabilitation Unit (L.F., A.G., M.C., M.L., V.M., M.F., F.E.), IRCCS San Raffaele Scientific Institute, Milan, Italy; Vita-Salute San Raffaele University (M.F.); Neurophysiology Unit (M.F.), IRCCS San Raffaele Scientific Institute; and Neuroimaging Research Unit, Division of Neuroscience, Institute of Experimental Neurology (INSPE) (P.F.), IRCCS San Raffaele Scientific Institute, Milan, Italy. esposito.federica@hsr.it. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20230215 PL - United States TA - Neurol Neuroimmunol Neuroinflamm JT - Neurology(R) neuroimmunology & neuroinflammation JID - 101636388 RN - 0 (HLA-DRB1 Chains) RN - 0 (Receptors, Antigen, T-Cell) RN - 0 (HLA Antigens) SB - IM MH - Humans MH - *Epstein-Barr Virus Infections MH - Herpesvirus 4, Human MH - HLA-DRB1 Chains/genetics MH - *Multiple Sclerosis/genetics MH - Receptors, Antigen, T-Cell/genetics MH - T-Lymphocytes MH - HLA Antigens/genetics PMC - PMC9931183 EDAT- 2023/02/16 06:00 MHDA- 2023/02/18 06:00 PMCR- 2023/02/15 CRDT- 2023/02/15 21:42 PHST- 2022/08/02 00:00 [received] PHST- 2022/12/14 00:00 [accepted] PHST- 2023/02/15 21:42 [entrez] PHST- 2023/02/16 06:00 [pubmed] PHST- 2023/02/18 06:00 [medline] PHST- 2023/02/15 00:00 [pmc-release] AID - 10/3/e200093 [pii] AID - NXI-2022-200100 [pii] AID - 10.1212/NXI.0000000000200093 [doi] PST - epublish SO - Neurol Neuroimmunol Neuroinflamm. 2023 Feb 15;10(3):e200093. doi: 10.1212/NXI.0000000000200093. Print 2023 May.