ArticleEuropean journal of medical research2025
Exploration of novel therapeutic targets for keloids based on clinical and molecular data: the role of the IL-4/IL-13 signaling pathway.
Article in European journal of medical research, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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6 authors.
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Abstract
BACKGROUND AND
objectivesKeloids are problematic fibrotic lesions with excessive collagen and chronic inflammation; their underlying causes are not fully understood. Type 2 helper T (Th2) cytokines IL-4 and IL-13 are implicated in various fibrotic disorders, including but not limited to pulmonary fibrosis and systemic sclerosis. This study aimed to investigate the IL-4/IL-13 signaling pathway's contribution to keloid pathophysiology and evaluate its potential as a novel therapeutic target.
methodsWe retrospectively analyzed keloid patients, collecting demographic data and grading scar severity with the Vancouver Scar Scale (VSS). Keloid tissue specimens underwent immunofluorescence, Western blotting, and real-time PCR to quantify IL-4, IL-13, Type I Collagen alpha 1 (Collagen I A1), and phosphorylated STAT6 (p-STAT6) expression.
resultsPatients had an average total VSS score of 11.0 ± 2.9, indicating active fibrotic inflammation. Molecular assays showed significant upregulation of IL-4 and IL-13, alongside increased p-STAT6 and Collagen I A1 in keloid tissues. Notably, IL-4, IL-13, and p-STAT6 expression positively correlated with VSS thickness and pliability scores.
conclusionsOur findings demonstrate that the IL-4/IL-13 signaling axis is markedly activated in keloid tissues, promoting collagen synthesis via STAT6 phosphorylation. Therefore, targeting the IL-4/IL-13/STAT6 pathway may represent a promising therapeutic strategy for managing keloids.
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