ArticleInflammation research : official journal of the European Histamine Research Society ... [et al.]2025
IL-8 promotes pyroptosis through ERK pathway and mediates glucocorticoid resistance in chronic rhinosinusitis with nasal polyps.
Article in Inflammation research : official journal of the European Histamine Research Society ... [et al.], 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed.
- A Molecular-Dynamics-Guided Screening Pipeline Identifies Topical Glucocorticoid Receptor Modulators with Selective Epidermal Activation.Skin pharmacology and physiology · 2026Article
- High Radiological Severity in CRSwNP Is Associated With a Mixed Type 2/Type 3 Epithelial Inflammatory Signature.Laryngoscope investigative otolaryngology · 2026Article
- Programmed Cell Death in Chronic Rhinosinusitis.Clinical and translational allergy · 2026Review
- NLRP3 Inflammasome Activation in Liver Disorders: From Molecular Pathways to Therapeutic Strategies.Journal of inflammation research · 2025Review
- Long-Term Cigarette Smoke Exposure Promotes Neutrophil Ferroptosis Resistance, Inducing Neutrophil Extracellular Trap Formation and Driving Glucocorticoid Resistance in Chronic Obstructive Pulmonary Disease.Research (Washington, D.C.) · 2025Article
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Authors and funding
12 authors.
Funding
Abstract
objectiveThis study seeks to elucidate the role and molecular mechanisms of IL-8 in nasal epithelial cell pyroptosis and its impact on glucocorticoid (GC) resistance.
methodsWe assessed the expression of pyroptosis-related biomarkers and IL-8 in tissues and human nasal epithelial cells (hNECs) from both control and nasal polyp patients using western blot. Their localization was determined through immunohistochemistry and immunofluorescence. Cell death and cytotoxicity assay, electron microscopy, ELISA, and immunofluorescence were utilized to investigate IL-8-induced pyroptosis and GC resistance in hNECs, alongside the examination of the involved signaling pathways via western blot and immunofluorescence. In a murine model, hematoxylin-eosin staining and immunohistochemistry clarified relationship between pyroptosis and GC resistance.
resultsIL-8 and pyroptotic biomarker expression were significantly higher in nasal polyp-derived tissues and hNECs compared to controls. IL-8 showed a positive correlation and co-localized with the pyroptotic biomarkers. IL-8 triggered pyroptosis in hNECs by activating the ERK signaling pathway, leading to increased IL-1β and IL-18 secretion. Moreover, IL-8-induced pyroptosis was found to contribute to GC resistance by affecting phosphorylation of GC receptor Ser211. Inhibition of pyroptotic proteins mitigated IL-8-induced GC resistance both in vitro and in vivo.
conclusionElevated IL-8 facilitates pyroptosis via the ERK signaling pathway and plays a significant role in GC resistance in nasal polyps.
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