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Common variants in P2RY11 are associated with narcolepsy.


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 3' untranslated region of P2RY11, the purinergic receptor subtype P2Y?? gene, which is associated with narcolepsy (rs2305795, combined P = 6.1 × 10?¹?, odds ratio = 1.28, 95% CI 1.19-1.39, 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.

SUBMITTER: Kornum BR 

PROVIDER: S-EPMC3019286 | biostudies-literature | 2011 Jan

REPOSITORIES: biostudies-literature

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Common variants in P2RY11 are associated with narcolepsy.

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

Nature genetics 20101219 1


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 3' untranslated region of P2RY11, the purinergic receptor subtype P2Y₁₁ gene, which is associated with narcolepsy (rs2305795, combined P = 6.1 × 10⁻¹⁰, odds ratio = 1.28,  ...[more]

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