ArticleInvestigative ophthalmology & visual science2020
UV-B-Induced Inflammasome Activation Can Be Prevented by Cis-Urocanic Acid in Human Corneal Epithelial Cells.
Article in Investigative ophthalmology & visual science, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.
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Who cites it
16 citing papers in PubMed, 29 citations in OpenAlex.
- On the Misuse of Virus-Transformed Human Corneal Epithelial Cells as Surrogates for Normal Cells.Investigative ophthalmology & visual science · 2026Review
- Loss of Peroxiredoxin 6 Drives Age-Related Klf9/NF-Antioxidants (Basel, Switzerland) · 2026Article
- U1 RNA Detected by Toll-Like Receptor 3 Plays a Role in the Pathogenesis of Pterygium.Investigative ophthalmology & visual science · 2025Article
- Beneficial health effects of ultraviolet radiation: expert review and conference report.Photochemical & photobiological sciences : Official journal of the European Photochemistry Association and the European Society for Photobiology · 2025Review
- Neuropsin, TRPV4 and intracellular calcium mediate intrinsic photosensitivity in corneal epithelial cells.The ocular surface · 2025Article
- Kinetics of imidazole propionate from orally delivered histidine in mice and humans.NPJ biofilms and microbiomes · 2024Article
- Granzyme B Expression in Conjunctiva of Patients with Pterygium.International journal of molecular sciences · 2024Article
- Influence of chlorpyrifos exposure on UVB irradiation induced toxicity in human skin cells.Journal of occupational medicine and toxicology (London, England) · 2023Article
- Regulation of UV-B-Induced Inflammatory Mediators by Activity-Dependent Neuroprotective Protein (ADNP)-Derived Peptide (NAP) in Corneal Epithelium.International journal of molecular sciences · 2023Article
- Article
- Photoaging: UV radiation-induced inflammation and immunosuppression accelerate the aging process in the skin.Inflammation research : official journal of the European Histamine Research Society ... [et al.] · 2022Review
- Investigation of Metabolome Underlying the Biological Mechanisms of Acute Heat Stressed Granulosa Cells.International journal of molecular sciences · 2022Article
- Cutaneous and ocular rosacea: Common and specific physiopathogenic mechanisms and study models.Molecular vision · 2021Review
- Cytoprotective Effects of Water Soluble Dihydropyrimidinthione Derivative Against UV-B Induced Human Corneal Epithelial Cell Photodamage.Frontiers in pharmacology · 2021Article
- Grape Seed Proanthocyanidin Extract Moderated Retinal Pigment Epithelium Cellular Senescence Through NAMPT/SIRT1/NLRP3 Pathway.Journal of inflammation research · 2021Article
- Role of the NLRP3 Inflammasome: Insights Into Cancer Hallmarks.Frontiers in immunology · 2020Review
Corrections and comments
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Authors and funding
8 authors at 3 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Purpose: The cornea is continually exposed to highly energetic solar UV-B (280-320 nm). Our aim was to investigate whether UV-B triggers the activation of NLRP3 inflammasomes and the production of IL-1β and/or IL-18 in human corneal epithelial (HCE) cells. Additionally, we studied the capability of cis-urocanic acid (cis-UCA) to prevent inflammasome activation or alleviate inflammation through other signaling pathways. Methods: HCE-2 cell line and primary HCE cells were primed using lipopolysaccharide or TNF-α. Thereafter, cells were exposed to UV-B before or after the addition of cis-UCA or caspase-1 inhibitor. Caspase-1 activity was measured from cell lysates by an enzymatic assay. IL-1β, IL-18, IL-6, IL-8, and NLRP3 levels were detected using the ELISA method from cell culture media. Additionally, intracellular NLRP3 levels were determined by the Western blot technique, and cytotoxicity was measured by the LDH assay. Results: UV-B exposure significantly increased caspase-1 activity in TNF-α-primed HCE cells. This result was consistent with the concurrently induced IL-1β secretion. Both caspase-1 activity and release of IL-1β were reduced by cis-UCA. Additionally, UV-B stimulated the caspase-1-independent production of IL-18, an effect also reduced by cis-UCA. Cis-UCA decreased the release of IL-6, IL-8, and LDH in a time-dependent manner when administered to HCE-2 cells after UV-B exposure. Conclusions: Our findings demonstrate that UV-B activates inflammasomes in HCE cells. Cis-UCA can prevent the secretion of IL-1β and IL-18 and therapeutically reduces the levels of IL-6, IL-8, and LDH in UV-B-stressed HCE cells.
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