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 language | English |
|---|---|
| Article number | 2709 |
| Number of pages | 13 |
| Journal | Nature Communications |
| Volume | 14 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 15 May 2023 |
UN SDGs
This output contributes to the following UN Sustainable Development Goals (SDGs)
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SDG 3 Good Health and Well-being
Keywords
- Humans
- Autoimmunity/genetics
- Influenza, Human/epidemiology
- Influenza A Virus, H1N1 Subtype/genetics
- Autoimmune Diseases/epidemiology
- Influenza Vaccines/adverse effects
- Narcolepsy/chemically induced
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Sleep Medicine
van Gilst, M. (Content manager) & van der Hout-van der Jagt, B. (Content manager)
Impact: Research Topic/Theme (at group level)
Press/Media
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Researchers from Stanford University Discuss Findings in Narcolepsy (Narcolepsy risk loci outline role of T cell autoimmunity and infectious triggers in narcolepsy)
1/06/23
1 item of Media coverage
Press/Media: Expert Comment
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