ArticleAnnals of dermatology2026
The Role of Inflammasome in the Pathogenesis of Alopecia Areata: NLRP3 and Its Cascade Contribute to the Onset and Early Stage of Alopecia Areata.
Article in Annals of dermatology, 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
backgroundThe inflammasome, a multiprotein complex, is crucial in the pathogenesis of various autoinflammatory disorders. In particular, the NOD-like receptor family pyrin domain-containing 3 (NLRP3) inflammasome has recently been associated with diseases such as psoriasis, vitiligo, lupus, and alopecia areata (AA).
objectiveThe objective of this study is to investigate the potential involvement of the inflammasome in the pathogenesis of AA and to determine its correlation with clinical manifestations.
methodsA total of 144 patients with AA and 22 healthy controls were included. Scalp skin and serum samples were collected to assess the levels of NLRP3-related molecules in lesional tissue and blood, respectively. Additionally, we performed immunostaining to measure the expression of NLRP3 and caspase-1 in the outer root sheath (ORS).
resultsLesional interleukin-1β expression was significantly elevated in patients with AA at all stages compared with controls. In the progressive stage, lesional C-X-C motif chemokine ligand 10 levels were markedly higher than those in controls and other stages. Serum interferon-γ levels were also significantly increased during the progressive stage of AA compared with controls. Immunostaining revealed strong NLRP3 and caspase-1 positivity in the ORS during the initial and progressive stages of AA, in contrast to the recovery stage.
conclusionThese results highlight the functional role of the inflammasomes in the pathogenesis of AA.
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