ArticleMolecular medicine (Cambridge, Mass.)2025
A pilot study on the effect of SARS-CoV-2 spike protein on IL-1β-mediated inflammation in peripheral blood immune cells from AIED patients.
Article in Molecular medicine (Cambridge, Mass.), 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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1 citing paper in PubMed.
- Exercise orchestrates systemic metabolic and neuroimmune homeostasis via the brain-muscle-liver axis to slow down aging and neurodegeneration: a narrative review.European journal of medical research · 2025Review
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3 authors.
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Abstract
backgroundImmune-mediated hearing loss (IMHL) patients (comprised of autoimmune inner ear disease (AIED) and sudden sensorineural hearing loss (SSNHL)) may be at higher risk for hearing loss following Coronavirus disease (COVID-19) infection and/or vaccination.
methodsWe compared inflammatory cytokine expression in response to SARS-CoV2 spike protein between two groups of patients with IMHL: IMHL patients that temporally demonstrated worsening SNHL following COVID vaccination or infection as compared to IMHL patients with worsening SNHL unrelated to COVID exposure: (IMHL-COVID ( +)) (n = 11) (IMHL-COVID (-)) (n = 10). In these two groups, we treated isolated PBMCs with increasing amounts of SARS-CoV-2 spike protein and compared responses to stimulation with positive and negative controls.
resultsPeripheral Blood Mononuclear Cells (PBMC) from IMHL-COVID ( +) patients had increased expression and release of both IL-1β and IL-6 in response to spike protein as compared to IMHL-COVID (-) patients. However, when the IMHL-COVID ( +) group was broken down into AIED patients compared to SSNHL, it became apparent that the greatest responses were from the AIED patients (p < 0.005 for IL-6 mRNA expression and p < 0.003 for IL-6 release when compared between any two similar groups using Wilcoxon Rank-Sum Test). When we broke down the COVID ( +) group to infection versus vaccination, the immune responses in the infection group (N = 3 AIED, 1 SSNHL) were stronger.
conclusionsCOVID-19 exposure with reported changes in hearing sensitivity in IMHL patients resulted in pro-inflammatory responses in response to spike protein. The inflammatory responses were greatest in AIED patients, and greater following infection rather than vaccination. Therefore, based on these studies, we would recommend AIED patients take additional precautions to avoid COVID exposure. Furthermore, we do recommend COVID vaccination during periods of hearing stability, as the immune responses are even more robust in response to infection in this vulnerable group.
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