ArticleThe World Allergy Organization journal2025
Repeated and alternate stimulations with dsRNA and SEB alter responses in macrophages and epithelial cells.
Article in The World Allergy Organization journal, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
What it found
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Who cites it
2 citing papers in PubMed.
- Neoadjuvant BO-112 and Hypofractionated Radiation Therapy with or without Nivolumab in Soft-Tissue Sarcoma: Preclinical and Phase I Results.Cancer discovery · 2026Article
- Exosomes in inflammatory tissue injury: key pathogenic factors and promising therapeutic agents.Frontiers in immunology · 2026Review
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Authors and funding
8 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Introduction: The innate immune system is activated by foreign molecules via pattern recognition receptors and other surveillance systems, producing diverse cytokines that recruit and activate other immune cells. Recent studies have shown that once activated by foreign molecules, the innate immune system exhibits altered responses upon subsequent exposure to the same or different infectious agents, such as lipopolysaccharides (LPS) or bacteria. However, as these alterations in response to viral infection and staphylococcal enterotoxin B (SEB) in the airways have not been fully elucidated, we focused on the changes in immune responses induced by repeated stimulation of macrophages and epithelial cells with foreign molecules. Methods: THP-1-derived macrophages and BEAS-2B epithelial cells were stimulated with dsRNA (double-stranded RNA) or SEB and cultured in fresh complete medium for 4 days. Subsequently, the cells were re-stimulated with different doses of dsRNA or SEB, and the cytokine and signal phosphorylation levels were evaluated. Results: Repeated stimulation with high dose of dsRNA or SEB, induced an increase in IL-10, CCL2, CCL22, CCL24, CXCL10, and CXCL11 in macrophages, while only repeated stimulation with dsRNA stimulation resulted in an increase in IL-6, CCL2, CCL5, CCL24, CXCL11, and TGF-β in epithelial cells. Cross-stimulation with SEB-dsRNA induced an increase in CCL5, CCL20, CCL22, CCL24, CXCL10, and CXCL11 levels in macrophages. However, in epithelial cells, SEB-dsRNA stimulation increased the levels of CCL5, CXCL11, and TGF-β, while dsRNA-SEB stimulation elevated CCL1, CCL20, CXCL10, and CXCL11. These cytokine changes were driven by distinct phosphorylation patterns in macrophages and epithelial cells, depending on the type and intensity of stimuli. Conclusion: Repeated stimulation with the same or cross-over stimuli induced alterations in the immune response of macrophages and epithelial cells. These observations indicated that persistent airway stimulation can lead to changes in airway inflammation, potentially leading to asthma.
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