Immunogenetic protective factors in Genetic Generalized Epilepsy.
Epilepsy
Genetic Generalized Epilepsies
Genetic susceptibility
Inflammation
Journal
Epilepsy research
ISSN: 1872-6844
Titre abrégé: Epilepsy Res
Pays: Netherlands
ID NLM: 8703089
Informations de publication
Date de publication:
10 2020
10 2020
Historique:
received:
15
04
2020
revised:
02
06
2020
accepted:
10
06
2020
pubmed:
26
6
2020
medline:
7
10
2021
entrez:
26
6
2020
Statut:
ppublish
Résumé
Genetic Generalized Epilepsies (GGEs) are a heterogeneous group of syndromes characterized by generalized seizure activity that affects both hemispheres, with mainly genetic causes. Neuroinflammation has been established as an important mechanism in epileptogenesis. The ability to develop an appropriated immune response is strongly determined by immunogenetic factors. In this setting, our aim was to evaluate potential associations between GGEs and immunogenetic factors. The rs16944 (IL-1β -511 T > C) polymorphism and the HLA-DRB1 locus were genotyped in a Portuguese GGE population. Association with two clinicopathological features, photosensitivity and refractoriness, was investigated. This case-control study included 323 GGE patients (187 F, 136 M, 34.0 ± 13.9 years of age), 145 of which with JME diagnosis (88 F, 57 M, 34.1 ± 14.0 years), and 282 healthy controls (174 F, 108 M, 37.7 ± 11.6 years). Decreased frequencies of the HLA-DRB1*09 and DRB1*13 alleles were observed in the GGE population. HLA-DRB1*07 frequency was increased in JME. Rs16944 allelic frequencies were similar between patients and controls. These results, not entirely consistent with previous reports, suggest that HLA molecules may have a complex role in epileptogenesis.
Sections du résumé
BACKGROUND
Genetic Generalized Epilepsies (GGEs) are a heterogeneous group of syndromes characterized by generalized seizure activity that affects both hemispheres, with mainly genetic causes. Neuroinflammation has been established as an important mechanism in epileptogenesis. The ability to develop an appropriated immune response is strongly determined by immunogenetic factors. In this setting, our aim was to evaluate potential associations between GGEs and immunogenetic factors.
METHODS
The rs16944 (IL-1β -511 T > C) polymorphism and the HLA-DRB1 locus were genotyped in a Portuguese GGE population. Association with two clinicopathological features, photosensitivity and refractoriness, was investigated. This case-control study included 323 GGE patients (187 F, 136 M, 34.0 ± 13.9 years of age), 145 of which with JME diagnosis (88 F, 57 M, 34.1 ± 14.0 years), and 282 healthy controls (174 F, 108 M, 37.7 ± 11.6 years).
RESULTS
Decreased frequencies of the HLA-DRB1*09 and DRB1*13 alleles were observed in the GGE population. HLA-DRB1*07 frequency was increased in JME. Rs16944 allelic frequencies were similar between patients and controls.
CONCLUSIONS
These results, not entirely consistent with previous reports, suggest that HLA molecules may have a complex role in epileptogenesis.
Identifiants
pubmed: 32585211
pii: S0920-1211(20)30236-9
doi: 10.1016/j.eplepsyres.2020.106396
pii:
doi:
Substances chimiques
HLA-DRB1 Chains
0
Types de publication
Journal Article
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Pagination
106396Informations de copyright
Copyright © 2020 Elsevier B.V. All rights reserved.