A genome-wide pleiotropy study between atopic dermatitis and neuropsychiatric disorders
Charalabos Antonatos1, Alexandros Pontikas1, Adam Akritidis1
1Laboratory of Genetics, Section of Genetics, Cell Biology and Development, Department of Biology, University of Patras, 26504, Patras, Greece.
Human Genomics
|July 27, 2025
Summary
This study explored the genetic links between atopic dermatitis (AD) and neuropsychiatric disorders like ADHD, MDD, and BP. Findings reveal shared genetic factors and immune pathways, suggesting new therapeutic targets for these conditions.
Area of Science:
- Genetics
- Immunology
- Psychiatry
Background:
- Atopic dermatitis (AD) often co-occurs with neuropsychiatric disorders, but the underlying genetic reasons are not well understood.
- Understanding these genetic links is crucial for developing effective treatments for both conditions.
Purpose of the Study:
- To investigate the genetic correlations and causal associations between atopic dermatitis and five neuropsychiatric disorders: ADHD, ASD, BP, MDD, and SCZ.
- To identify shared genetic loci and biological pathways involved in the comorbidity of AD and neuropsychiatric disorders.
- To discover novel therapeutic targets for AD by analyzing pleiotropic genes and pathways.
Main Methods:
- Genome-wide pleiotropy analysis to assess genetic correlations between AD and ADHD, ASD, BP, MDD, and SCZ.
- Identification and mapping of pleiotropic loci and associated genes involved in inflammatory pathways.
- Mendelian randomization to evaluate causal relationships between genetic liability for neuropsychiatric disorders and AD risk.
Main Results:
- Significant positive genetic correlations were found between AD and ADHD, MDD, and BP.
- 37 distinct pleiotropic loci, involving 86 genes in inflammatory pathways, were identified.
- Evidence suggests a causal link between genetic liability for MDD and BP and an increased risk of AD.
Conclusions:
- Immune-related pathways are implicated in the crosstalk between AD and neuropsychiatric disorders.
- The study identified novel pathophysiological mechanisms and potential drug targets for AD, including TNF and JAK-STAT3 signaling pathways.
- Findings support the development of integrated therapeutic strategies for patients with comorbid AD and neuropsychiatric conditions.
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