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Migraine immune cell gene targets and their relationship to psychiatric disorders
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DOI：10.1186/s10194-026-02465-1.png)
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Abstract
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Migraine frequently co-occurs with psychiatric disorders, yet the immunogenetic mechanisms linking these conditions remain largely unexplored. Using cis-eQTL data from 28 immune cell subtypes (1,925 donors) and GWAS summary statistics for migraine and five psychiatric disorders, we performed single-cell transcriptome-wide Mendelian randomization, Bayesian colocalization, genetic correlation, and cross-disease pleiotropy analyses. Independent replication was performed using external datasets. Migraine and its subtypes showed significant positive genetic correlations with all five psychiatric disorders (rg = 0.39–0.73). We identified 83 immune cell gene targets for migraine, 13 for migraine with aura, and 19 for migraine without aura. Among these, 6 targets showed shared associations with anxiety and 1 with depression. Three prioritized genes—HLA-A, CDK2AP1, and TTC24—demonstrated cross-disease pleiotropic effects. Notably, HLA-A in cDC1 exhibited discordant pleiotropy (protective for migraine with aura, risk for depression), with known drug–gene interactions involving antiepileptics and tricyclic antidepressants. These findings suggest that immune cell–specific genes, particularly HLA-A, CDK2AP1, and TTC24, may bridge migraine and psychiatric disorders, offering potential candidates for further investigation into shared immunogenetic mechanisms. Not applicable.
Keywords:
Migraine
Mendelian randomization
Single-cell eQTL
Psychiatric disorders
Drug–gene interactions
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