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Narcolepsy risk loci outline role of T cell autoimmunity and infectious triggers in narcolepsy

  • FinnGen
  • Stanford University
  • University of Helsinki
  • Massachusetts General Hospital
  • Charité – Universitätsmedizin Berlin
  • Peking University
  • The Catholic University of Korea, St. Vincent's Hospital
  • Institut national de la santé et de la recherche médicale
  • Leiden University
  • Epilepsy Institutes of the Netherlands Foundation
  • Hephata Klinik
  • University of Marburg
  • University of Barcelona
  • Assistance publique – Hôpitaux de Paris
  • University of Oslo
  • University of Bologna
  • IRCCS Istituto delle Scienze Neurologiche di Bologna
  • Mater Private Hospital Dublin
  • Kaiser Permanente
  • Université de Paris
  • Department of Sleep Medicine, Strasbourg University Hospital, Strasbourg University
  • Akita University
  • University of Tsukuba
  • Hospital Clínico San Carlos de Madrid
  • Hospital General Universitario Gregorio Marañon
  • Sleep Unit. Medical Center Valencia
  • University of Montreal
  • Chang Gung Memorial Hospital
  • Aarhus University
  • AbbVie

Research output: Contribution to journalArticlepeer-review

58 Scopus citations

Abstract

Narcolepsy type 1 (NT1) is caused by a loss of hypocretin/orexin transmission. Risk factors include pandemic 2009 H1N1 influenza A infection and immunization with Pandemrix®. Here, we dissect disease mechanisms and interactions with environmental triggers in a multi-ethnic sample of 6,073 cases and 84,856 controls. We fine-mapped GWAS signals within HLA (DQ0602, DQB1*03:01 and DPB1*04:02) and discovered seven novel associations (CD207, NAB1, IKZF4-ERBB3, CTSC, DENND1B, SIRPG, PRF1). Significant signals at TRA and DQB1*06:02 loci were found in 245 vaccination-related cases, who also shared polygenic risk. T cell receptor associations in NT1 modulated TRAJ*24, TRAJ*28 and TRBV*4-2 chain-usage. Partitioned heritability and immune cell enrichment analyses found genetic signals to be driven by dendritic and helper T cells. Lastly comorbidity analysis using data from FinnGen, suggests shared effects between NT1 and other autoimmune diseases. NT1 genetic variants shape autoimmunity and response to environmental triggers, including influenza A infection and immunization with Pandemrix®.

Original languageEnglish
Article number2709
JournalNature Communications
Volume14
Issue number1
DOIs
StatePublished - Dec 2023

Bibliographical note

Publisher Copyright:
© 2023, The Author(s).

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

  1. SDG 3 - Good Health and Well-being
    SDG 3 Good Health and Well-being

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