ArticleInternational journal of ophthalmology2024
Semaphorin 7A impairs barrier function in cultured human corneal epithelial cells in a manner dependent on nuclear factor-kappa B.
Article in International journal of ophthalmology, 2024. 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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Who cites it
1 citing paper in PubMed.
- Transcriptome profiling of ocular surface ectoderm derived from embryonic stem cells, and identification of CACNG6 and AQP3 as its surface markers.International journal of ophthalmology · 2026Article
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Authors and funding
8 authors.
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Abstract
aimTo evaluate the role of semaphorin 7A (Sema7A) and its associated regulatory mechanisms in modulating the barrier function of cultured human corneal epithelial cells (HCEs).
methodsBarrier models of HCEs were treated with recombinant human Sema7A at concentrations of 0, 125, 250, or 500 ng/mL for 24, 48, or 72h
resultsTreatment with Sema7A resulted in decreased TEER and increased permeability of Dextran-FITC in HCEs through down-regulating mRNA and protein levels of TJs in a time- and dose-dependent manner, as well as altering the localization of TJs. Furthermore, Sema7A stimulated the activation of inhibitor of kappa B alpha (IκBα) and expression of IL-1β. The anti-barrier function of Sema7A was significantly suppressed by treatment with IKK
conclusionSema7A disrupts barrier function through its influence on NF-κB-mediated expression of TJ proteins, as well as the expression of IL-1β. These findings suggest that Sema7A could be a potential therapeutic target for the diseases in corneal epithelium.
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