ArticleInternational journal of molecular sciences2026
Integrated Host Genetics and Skin Microbiome Profiling Suggest an HLA-C-Peptostreptococcus Axis in Psoriasis.
Article in International journal of molecular sciences, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Psoriasis is a chronic immune-mediated disease driven by genetic susceptibility and environmental factors, including microbial exposure. While HLA-C-linked variants represent the strongest genetic risk factors, their relationship with the cutaneous microbiome remains incompletely understood. This study aimed to investigate host-microbiome interactions in psoriasis through integrative multi-omics analysis. Skin microbiome profiling using 16S rRNA sequencing and targeted genotyping of psoriasis-associated single-nucleotide polymorphisms (SNPs) was performed in lesional and non-lesional skin from patients with plaque psoriasis and in healthy controls. Integrated analysis was conducted using supervised multivariate modeling (DIABLO) to identify coordinated genetic and microbial features associated with disease status. Combined genetic and microbial signatures differentiated lesional, non-lesional, and healthy skin. Variants within the HLA-C susceptibility region, including rs12191877, rs10484554, and rs4406273, showed contributions to group separation and demonstrated positive associations with
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