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作者: Martínez-Orozco, Francisco J ; Smedje, Hans ; Hong, Seung-Chul ; Wadelius, Mia ; Honda, Makoto ; Zhang, Jing ; Montplaisir, Jacques ; Li, Jing ; Mantovani, Vilma ; Moresco, Monica ; Nevsimalova, Sona ; Jolanki, Otto ; Risch, Neil ; Hesla, Per Egil ; Pelin, Zerrin ; Feketeova, Eva ; Kockum, Ingrid ; Bredahl, May Kristin Lyamouri ; Zhang, Jun ; Benetó, Antonio ; Santamaria, Joan ; Rivas, Manuel ; Knudsen-Heier, Stine ; Eriksson, Niclas ; Desautels, Alex ; Faraco, Juliette ; Coelho, Fernando Morgadinho ; Stefani, Ambra ; Lammers, Gert Jan ; Aran, Adi ; Mignot, Emmanuel J ; Pritchard, Jonathan K ; Ollila, Hanna M ; Dauvilliers, Yves ; Plazzi, Giuseppe ; Khor, Seik-Soon ; Perola, Markus ; Olsson, Tomas ; Bourgin, Patrice ; O'Hara, Ruth ; Yogeshwar, Selina M ; Fronczek, Rolf ; Partinen, Markku ; Arnulf, Isabelle ; Rye, David ; Huang, Yu-Shu ; Geisler, Peter ; Toyoda, Hiromi ; Kemlink, David ; Kanbayashi, Takashi ; Winkelmann, Juliane ; Sonka, Karel ; Ferini-Strambi, Luigi ; Miyagawa, Taku ; Ambati, Aditya ; Yan, Han ; Kutalik, Zoltan ; Han, Fang ; Nampoothiri, Sheela ; Hillary, Ryan P ; Sinnott-Armstrong, Nasa ; Hallmayer, Joachim ; Dong, Xiao Song ; Högl, Birgit ; Barateau, Lucie ; Luo, Guo ; Bassetti, Claudio L ; Ye, Chun Jimmie ; Mayer, Geert ; Wierzbicka, Aleksandra ; Shimada, Mihoko ; Einen, Mali ; Overeem, Sebastiaan ; Tokunaga, Katsushi ; Mathis, Johannes ; Crowe, Catherine ; Pizza, Fabio ; Jennum, Poul ; Khatami, Ramin ; Van den Eeden, Stephen K ; Lin, Ling ; Peraita-Adrados, Rosa ; Sharon, Eilon ; Thorsby, Per Medbøe ; Hallberg, Pär ; Lecendreux, Michel ; Rueger, Sina ; Kornum, Birgitte R ; Iranzo, Alex ; Kim, Tae Won
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®.