Common variants in P2RY11 are associated with narcolepsy

  • Birgitte R. Kornum
  • , Minae Kawashima
  • , Juliette Faraco
  • , Ling Lin
  • , Thomas J. Rico
  • , Stephanie Hesselson
  • , Robert C. Axtell
  • , Hedwich Kuipers
  • , Karin Weiner
  • , Alexandra Hamacher
  • , Matthias U. Kassack
  • , Fang Han
  • , Stine Knudsen
  • , Jing Li
  • , Xiaosong Dong
  • , Juliane Winkelmann
  • , Giuseppe Plazzi
  • , Sona Nevsimalova
  • , Seung Chul Hong
  • , Yutaka Honda
  • Makoto Honda, Birgit Högl, Thanh G.N. Ton, Jacques Montplaisir, Patrice Bourgin, David Kemlink, Yu Shu Huang, Simon Warby, Mali Einen, Jasmin L. Eshragh, Taku Miyagawa, Alex Desautels, Elisabeth Ruppert, Per Egil Hesla, Francesca Poli, Fabio Pizza, Birgit Frauscher, Jong Hyun Jeong, Sung Pil Lee, Kingman P. Strohl, William T. Longstreth, Mark Kvale, Marie Dobrovolna, Maurice M. Ohayon, Gerald T. Nepom, H. Erich Wichmann, Guy A. Rouleau, Christian Gieger, Douglas F. Levinson, Pablo V. Gejman, Thomas Meitinger, Paul Peppard, Terry Young, Poul Jennum, Lawrence Steinman, Katsushi Tokunaga, Pui Yan Kwok, Neil Risch, Joachim Hallmayer, Emmanuel Mignot

Research output: Contribution to journalArticlepeer-review

200 Scopus citations

Abstract

Growing evidence supports the hypothesis that narcolepsy with cataplexy is an autoimmune disease. We here report genome-wide association analyses for narcolepsy with replication and fine mapping across three ethnic groups (3,406 individuals of European ancestry, 2,414 Asians and 302 African Americans). We identify a SNP in the 3ĝ€2 untranslated region of P2RY11, the purinergic receptor subtype P2Y 11 gene, which is associated with narcolepsy (rs2305795, combined P = 6.1 - 10 '10, odds ratio = 1.28, 95% CI 1.19ĝ€"1.39, n = 5689). The disease-associated allele is correlated with reduced expression of P2RY11 in CD8 + T lymphocytes (339% reduced, P = 0.003) and natural killer (NK) cells (P = 0.031), but not in other peripheral blood mononuclear cell types. The low expression variant is also associated with reduced P2RY11-mediated resistance to ATP-induced cell death in T lymphocytes (P = 0.0007) and natural killer cells (P = 0.001). These results identify P2RY11 as an important regulator of immune-cell survival, with possible implications in narcolepsy and other autoimmune diseases.

Original languageEnglish
Pages (from-to)66-71
Number of pages6
JournalNature Genetics
Volume43
Issue number1
DOIs
StatePublished - Jan 2011

Bibliographical note

Funding Information:
We are indebted to all the participants of the study, most notably the individuals with narcolepsy. Without their contributions, this study would not have been possible. This study was supported by National Institutes of neurological Disease and Stroke grant P50 NS2372. Additional funding was from the Danish Medical Council 09-066348/FSS to B.R.K., a Stanford training grant: Molecular and Cellular Immunobiology grant 5 T32 AI07290 to K.W., National Institutes of Mental Health grant R01 MH080957 to E.M., grant 5U01 MH079470 to D.L., and US National Institutes of Health NS-044199 to M.M.O. We are also grateful to GAIN (the Genetic Association Information Network, National Institutes of Health) and KORA (Kooperative Gesundheitsforschung in der Region Augsburg, Germany). The authors extend their thanks to P. Chang, A. Voros and J. Zhang for technical assistance and C. Grumet for brainstorming and constant support.

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