PMID- 32152690 OWN - NLM STAT- MEDLINE DCOM- 20210412 LR - 20210619 IS - 1432-1459 (Electronic) IS - 0340-5354 (Linking) VI - 267 IP - 7 DP - 2020 Jul TI - Primary DQ effect in the association between HLA and neurological syndromes with anti-GAD65 antibodies. PG - 1906-1911 LID - 10.1007/s00415-020-09782-8 [doi] AB - The primary cause of neurological syndromes with antibodies against glutamic acid decarboxylase 65 (GAD65-Ab) is unknown, but genetic predisposition may exist as it is suggested by the co-occurrence in patients and their relatives of other organ-specific autoimmune diseases, notably type 1 diabetes mellitus (T1DM), and by the reports of a few familial cases. We analyzed the human leukocyte antigen (HLA) in 32 unrelated patients and compared them to an ethnically matched sample of 137 healthy controls. Four-digit resolution HLA alleles were imputed from available Genome Wide Association data, and full HLA next-generation sequencing-based typing was also performed. HLA DQA1*05:01-DQB1*02:01-DRB1*03:01 was the most frequent class II haplotype in patients (13/32, 41%). DQB1*02:01 was the only allele found to be significantly more common in patients than in controls (20/137, 15%, corrected p = 0.03, OR 3.96, 95% CI [1.54-10.09]). There was also a trend towards more frequent DQA1*05:01 among patients compared to controls (22/137, 16%; corrected p = 0.05, OR 3.54, 95% CI [1.40-8.91]) and towards a protective effect of DQB1*03:01 (2/32, 6% in patients vs. 42/137, 31% in control group; corrected p = 0.05, OR 0.15, 95% CI [0.02-0.65]). There was no significant demographic or clinical difference between DQ2 and non-DQ2 carriers (p > 0.05). Taken together, these findings suggest a primary DQ effect on GAD65-Ab neurological diseases, partially shared with other systemic organ-specific autoimmune diseases such as T1DM. However, it is likely that other non-HLA loci are involved in the genetic predisposition of GAD65-Ab neurological syndromes. FAU - Muniz-Castrillo, Sergio AU - Muniz-Castrillo S AUID- ORCID: 0000-0001-5958-3288 AD - French Reference Center on Paraneoplastic Neurological Syndromes and Autoimmune Encephalitis, Hospices Civils de Lyon, Hopital Neurologique, 59 Boulevard Pinel, 69677, Bron Cedex, France. AD - SynatAc Team, Institute NeuroMyoGene, INSERM U1217/CNRS UMR 5310, Universite de Lyon, Universite Claude Bernard Lyon 1, Lyon, France. FAU - Ambati, Aditya AU - Ambati A AD - Center for Sleep Sciences and Medicine, Stanford University, Palo Alto, CA, USA. FAU - Dubois, Valerie AU - Dubois V AD - HLA Laboratory, French Blood Service, EFS Auvergne-Rhone-Alpes, Lyon, France. FAU - Vogrig, Alberto AU - Vogrig A AD - French Reference Center on Paraneoplastic Neurological Syndromes and Autoimmune Encephalitis, Hospices Civils de Lyon, Hopital Neurologique, 59 Boulevard Pinel, 69677, Bron Cedex, France. AD - SynatAc Team, Institute NeuroMyoGene, INSERM U1217/CNRS UMR 5310, Universite de Lyon, Universite Claude Bernard Lyon 1, Lyon, France. FAU - Joubert, Bastien AU - Joubert B AD - French Reference Center on Paraneoplastic Neurological Syndromes and Autoimmune Encephalitis, Hospices Civils de Lyon, Hopital Neurologique, 59 Boulevard Pinel, 69677, Bron Cedex, France. AD - SynatAc Team, Institute NeuroMyoGene, INSERM U1217/CNRS UMR 5310, Universite de Lyon, Universite Claude Bernard Lyon 1, Lyon, France. FAU - Rogemond, Veronique AU - Rogemond V AD - French Reference Center on Paraneoplastic Neurological Syndromes and Autoimmune Encephalitis, Hospices Civils de Lyon, Hopital Neurologique, 59 Boulevard Pinel, 69677, Bron Cedex, France. AD - SynatAc Team, Institute NeuroMyoGene, INSERM U1217/CNRS UMR 5310, Universite de Lyon, Universite Claude Bernard Lyon 1, Lyon, France. FAU - Picard, Geraldine AU - Picard G AD - French Reference Center on Paraneoplastic Neurological Syndromes and Autoimmune Encephalitis, Hospices Civils de Lyon, Hopital Neurologique, 59 Boulevard Pinel, 69677, Bron Cedex, France. AD - SynatAc Team, Institute NeuroMyoGene, INSERM U1217/CNRS UMR 5310, Universite de Lyon, Universite Claude Bernard Lyon 1, Lyon, France. FAU - Lin, Ling AU - Lin L AD - Center for Sleep Sciences and Medicine, Stanford University, Palo Alto, CA, USA. FAU - Fabien, Nicole AU - Fabien N AD - Department of Immunology, Hospices Civils de Lyon, Centre Hospitalier Lyon Sud, Lyon, France. FAU - Mignot, Emmanuel AU - Mignot E AD - Center for Sleep Sciences and Medicine, Stanford University, Palo Alto, CA, USA. FAU - Honnorat, Jerome AU - Honnorat J AD - French Reference Center on Paraneoplastic Neurological Syndromes and Autoimmune Encephalitis, Hospices Civils de Lyon, Hopital Neurologique, 59 Boulevard Pinel, 69677, Bron Cedex, France. jerome.honnorat@chu-lyon.fr. AD - SynatAc Team, Institute NeuroMyoGene, INSERM U1217/CNRS UMR 5310, Universite de Lyon, Universite Claude Bernard Lyon 1, Lyon, France. jerome.honnorat@chu-lyon.fr. LA - eng GR - ANR-14-CE15-0001-MECANO/ANR France/ GR - ANR-18-RHUS-0012-BETPSY/ANR France/ GR - DQ20170336751/Fondation pour la Recherche Medicale/ PT - Journal Article DEP - 20200309 PL - Germany TA - J Neurol JT - Journal of neurology JID - 0423161 RN - 0 (Autoantibodies) RN - 0 (HLA-DQ Antigens) RN - 0 (HLA-DQ alpha-Chains) RN - 0 (HLA-DQ beta-Chains) RN - 0 (HLA-DQA1 antigen) RN - 0 (HLA-DQB1 antigen) RN - 0 (HLA-DRB1 Chains) RN - EC 4.1.1.15 (Glutamate Decarboxylase) RN - EC 4.1.1.15 (glutamate decarboxylase 2) SB - IM MH - Adult MH - Aged MH - Aged, 80 and over MH - *Autoantibodies/blood/cerebrospinal fluid MH - *Cerebellar Ataxia/genetics/immunology/metabolism MH - Comorbidity MH - *Diabetes Mellitus, Type 1/genetics/immunology/metabolism MH - Female MH - Genetic Predisposition to Disease MH - Glutamate Decarboxylase/*immunology MH - HLA-DQ Antigens/*genetics MH - HLA-DQ alpha-Chains/genetics MH - HLA-DQ beta-Chains/genetics MH - HLA-DRB1 Chains/genetics MH - Haplotypes MH - Humans MH - *Limbic Encephalitis/genetics/immunology/metabolism MH - Male MH - Middle Aged MH - *Stiff-Person Syndrome/genetics/immunology/metabolism MH - Young Adult OTO - NOTNLM OT - Cerebellar ataxia OT - Glutamic acid decarboxylase OT - HLA OT - Limbic encephalitis OT - Stiff person syndrome EDAT- 2020/03/11 06:00 MHDA- 2021/04/13 06:00 CRDT- 2020/03/11 06:00 PHST- 2019/11/28 00:00 [received] PHST- 2020/03/04 00:00 [accepted] PHST- 2020/03/02 00:00 [revised] PHST- 2020/03/11 06:00 [pubmed] PHST- 2021/04/13 06:00 [medline] PHST- 2020/03/11 06:00 [entrez] AID - 10.1007/s00415-020-09782-8 [pii] AID - 10.1007/s00415-020-09782-8 [doi] PST - ppublish SO - J Neurol. 2020 Jul;267(7):1906-1911. doi: 10.1007/s00415-020-09782-8. Epub 2020 Mar 9.