Cited by 19Dermatology and Skin DiseasesGenetic Associations and EpidemiologyAsthma and respiratory diseases

Genome-wide integration of genetic and genomic studies of atopic dermatitis: insights into genetic architecture and pathogenesis

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Chen, Yanxuan, Chen, Wenyan·2022·Journal of Investigative Dermatology

Abstract

Atopic dermatitis (AD) is a common heterogeneous, chronic, itching, and inflammatory skin disease. Genetic studies have identified multiple AD susceptibility genes. However, the genetic architecture of AD has not been elucidated. In this study, we conducted a large-scale meta-analysis of AD (35,647 cases and 1,013,885 controls) to characterize the genetic basis of AD. The heritability of AD in different datasets varied from 0.6 to 7.1%. We identified 31 previously unreported genes by integrating multiomics data. Among the 31 genes, MCL1 was identified as a potential treatment target for AD by mediating gene‒drug interactions. Tissue enrichment analyses and phenome-wide association study provided strong support for the role of the hemic and immune systems in AD. Across 1,207 complex traits and diseases, genetic correlations indicated that AD shared links with multiple respiratory phenotypes. The phenome-wide Mendelian randomization analysis (Mendelian randomization‒phenome-wide association study) revealed that the age of onset of diabetes exhibited a positive causal effect on AD (inverse-variance weighted β = 0.39, SEM = 0.09, P = 2.77 × 10 -5 ). Overall, these results provide important insights into the genetic architecture of AD and will lead to a more thorough and complete understanding of the molecular mechanisms underlying AD.

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Crossref · 10.1016/j.jid.2022.04.021

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  • There are dozens of AD susceptibility loci characterized in diverse populations, which mediate functions such as response to interferon gamma (IFNγ), innate immunity, T lymphocyte functions, and epidermal barrier dysfunctions.

    “There are dozens of AD susceptibility loci characterized in diverse populations, which mediate functions such as response to interferon gamma (IFNγ), innate immunity, T lymphocyte functions, and epidermal barrier dysfunctions (Table 1).”

    From Update on the pathogenesis of atopic dermatitis. (2024) · cites this paper as [26]

  • A study with Mendelian randomization identified an association between age at onset of diabetes and also alcohol use with AD.

    “A study with Mendelian randomization identified an association between age at onset of diabetes and also alcohol use with AD.”

    From Update on the pathogenesis of atopic dermatitis. (2024) · cites this paper as [26]

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Authors
Chen, Y., & Chen, W.
Affiliations
Shenzhen Bay Laboratory (CN)
Corresponding author
Chen, Wenyan
Venue
Journal of Investigative Dermatology
Publisher
Elsevier BV
Published
2022-11
Volume
142
Issue
11
Pages
2958-2967.e8
ISSN
0022-202X (ISSN-L)
OpenAlex
W4280496565
Cited by
19
References
9
Citations by year
2026: 3 · 2025: 4 · 2024: 6 · 2023: 5 · 2022: 1
FWCI
0.71
Type
journal article
Language
en
Open access
Locations
  • Journal of Investigative Dermatology (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Wellcome Trust (217065/Z/19/Z)
  • Medical Research Council (MC_PC_17228, MC_PC_15018, MC_PC_19009)
Topics
  • Health Sciences › Medicine › Dermatology › Dermatology and Skin Diseases
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genetic Associations and Epidemiology
  • Health Sciences › Medicine › Physiology › Asthma and respiratory diseases
Keywords
atopic dermatitis, genetic architecture, susceptibility genes, heritability, Mcl-1, drug-gene interactions, phenome-wide association study, Mendelian randomization, genetic correlation, immune system, multi-omics integration, treatment goals
MeSH terms
Dermatitis, Atopic, Humans, Genetic Predisposition to Disease, Polymorphism, Single Nucleotide, Genomics, Genome-Wide Association Study, Mendelian Randomization Analysis, Myeloid Cell Leukemia Sequence 1 Protein

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