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GWAS Study

ImmunoChip study implicates antigen presentation to T cells in narcolepsy.

Faraco J, Lin L, Kornum BR et al.

23459209 PubMed ID
GWAS Study Type
12307 Participants
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Chapter I

Publication Details

Comprehensive information about this research publication

Authors

FJ
Faraco J
LL
Lin L
KB
Kornum BR
KE
Kenny EE
TG
Trynka G
EM
Einen M
RT
Rico TJ
LP
Lichtner P
DY
Dauvilliers Y
AI
Arnulf I
LM
Lecendreux M
JS
Javidi S
GP
Geisler P
MG
Mayer G
PF
Pizza F
PF
Poli F
PG
Plazzi G
OS
Overeem S
LG
Lammers GJ
KD
Kemlink D
SK
Sonka K
NS
Nevsimalova S
RG
Rouleau G
DA
Desautels A
MJ
Montplaisir J
FB
Frauscher B
EL
Ehrmann L
HB
Högl B
JP
Jennum P
BP
Bourgin P
PR
Peraita-Adrados R
IA
Iranzo A
BC
Bassetti C
CW
Chen WM
CP
Concannon P
TS
Thompson SD
DV
Damotte V
FB
Fontaine B
BM
Breban M
GC
Gieger C
KN
Klopp N
DP
Deloukas P
WC
Wijmenga C
HJ
Hallmayer J
OS
Onengut-Gumuscu S
RS
Rich SS
WJ
Winkelmann J
ME
Mignot E
Chapter II

Abstract

Summary of the research findings

Recent advances in the identification of susceptibility genes and environmental exposures provide broad support for a post-infectious autoimmune basis for narcolepsy/hypocretin (orexin) deficiency. We genotyped loci associated with other autoimmune and inflammatory diseases in 1,886 individuals with hypocretin-deficient narcolepsy and 10,421 controls, all of European ancestry, using a custom genotyping array (ImmunoChip). Three loci located outside the Human Leukocyte Antigen (HLA) region on chromosome 6 were significantly associated with disease risk. In addition to a strong signal in the T cell receptor alpha (TRA@), variants in two additional narcolepsy loci, Cathepsin H (CTSH) and Tumor necrosis factor (ligand) superfamily member 4 (TNFSF4, also called OX40L), attained genome-wide significance. These findings underline the importance of antigen presentation by HLA Class II to T cells in the pathophysiology of this autoimmune disease.

1,886 European ancestry cases, 10,421 European ancestry controls

Chapter III

Study Statistics

Key metrics and study information

12307
Total Participants
GWAS
Study Type
No
Replicated
European
Ancestry
Canada, U.S., Australia, Austria, France, Germany, Netherlands, Switzerland, Argentina, Israel, Turkey, Czech Republic, Poland, Slovakia, Denmark, Finland, Norway, U.K., Italy, Portugal, Spain
Recruitment Country
Chapter IV

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