GWAS meta-analysis of over 29,000 people with epilepsy identifies 26 risk loci and subtype-specific genetic architecture.



International League Against Epilepsy Consortium on Complex Epil,
(2023) GWAS meta-analysis of over 29,000 people with epilepsy identifies 26 risk loci and subtype-specific genetic architecture. Nature genetics, 55 (9). pp. 1471-1482.

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Abstract

Epilepsy is a highly heritable disorder affecting over 50 million people worldwide, of which about one-third are resistant to current treatments. Here we report a multi-ancestry genome-wide association study including 29,944 cases, stratified into three broad categories and seven subtypes of epilepsy, and 52,538 controls. We identify 26 genome-wide significant loci, 19 of which are specific to genetic generalized epilepsy (GGE). We implicate 29 likely causal genes underlying these 26 loci. SNP-based heritability analyses show that common variants explain between 39.6% and 90% of genetic risk for GGE and its subtypes. Subtype analysis revealed markedly different genetic architectures between focal and generalized epilepsies. Gene-set analyses of GGE signals implicate synaptic processes in both excitatory and inhibitory neurons in the brain. Prioritized candidate genes overlap with monogenic epilepsy genes and with targets of current antiseizure medications. Finally, we leverage our results to identify alternate drugs with predicted efficacy if repurposed for epilepsy treatment.

Item Type: Article
Uncontrolled Keywords: International League Against Epilepsy Consortium on Complex Epilepsies, Brain, Neurons, Humans, Epilepsy, Genome-Wide Association Study
Divisions: Faculty of Health and Life Sciences
Faculty of Health and Life Sciences > Institute of Systems, Molecular and Integrative Biology
Depositing User: Symplectic Admin
Date Deposited: 31 Jan 2024 10:38
Last Modified: 31 Jan 2024 10:39
DOI: 10.1038/s41588-023-01485-w
Open Access URL: https://doi.org/10.1038/s41588-023-01485-w
Related URLs:
URI: https://livrepository.liverpool.ac.uk/id/eprint/3178182