Narcolepsy-Associated HLA Class I Alleles Implicate Cell-Mediated Cytotoxicity.

Détails

ID Serval
serval:BIB_D0833B669841
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Titre
Narcolepsy-Associated HLA Class I Alleles Implicate Cell-Mediated Cytotoxicity.
Périodique
Sleep
Auteur(s)
Tafti M., Lammers G.J., Dauvilliers Y., Overeem S., Mayer G., Nowak J., Pfister C., Dubois V., Eliaou J.F., Eberhard H.P., Liblau R., Wierzbicka A., Geisler P., Bassetti C.L., Mathis J., Lecendreux M., Khatami R., Heinzer R., Haba-Rubio J., Feketeova E., Baumann C.R., Kutalik Z., Tiercy J.M.
ISSN
1550-9109 (Electronic)
ISSN-L
0161-8105
Statut éditorial
Publié
Date de publication
2016
Peer-reviewed
Oui
Volume
39
Numéro
3
Pages
581-587
Langue
anglais
Notes
Publication types: Journal Article
Publication Status: epublish
Résumé
STUDY OBJECTIVES: Narcolepsy with cataplexy is tightly associated with the HLA class II allele DQB1*06:02. Evidence indicates a complex contribution of HLA class II genes to narcolepsy susceptibility with a recent independent association with HLA-DPB1. The cause of narcolepsy is supposed be an autoimmune attack against hypocretin-producing neurons. Despite the strong association with HLA class II, there is no evidence for CD4+ T-cell-mediated mechanism in narcolepsy. Since neurons express class I and not class II molecules, the final effector immune cells involved might include class I-restricted CD8+ T-cells.
METHODS: HLA class I (A, B, and C) and II (DQB1) genotypes were analyzed in 944 European narcolepsy with cataplexy patients and in 4,043 control subjects matched by country of origin. All patients and controls were DQB1*06:02 positive and class I associations were conditioned on DQB1 alleles.
RESULTS: HLA-A*11:01 (OR = 1.49 [1.18-1.87] P = 7.0*10(-4)), C*04:01 (OR = 1.34 [1.10-1.63] P = 3.23*10(-3)), and B*35:01 (OR = 1.46 [1.13-1.89] P = 3.64*10(-3)) were associated with susceptibility to narcolepsy. Analysis of polymorphic class I amino-acids revealed even stronger associations with key antigen-binding residues HLA-A-Tyr(9) (OR = 1.32 [1.15-1.52] P = 6.95*10(-5)) and HLA-C-Ser(11) (OR = 1.34 [1.15-1.57] P = 2.43*10(-4)).
CONCLUSIONS: Our findings provide a genetic basis for increased susceptibility to infectious factors or an immune cytotoxic mechanism in narcolepsy, potentially targeting hypocretin neurons.
Pubmed
Web of science
Open Access
Oui
Création de la notice
13/11/2015 17:50
Dernière modification de la notice
20/08/2019 16:50
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