Solitary chemosensory cells are a primary epithelial source of IL-25 in patients with chronic rhinosinusitis with nasal polyps.
Solitary chemosensory cells are a primary epithelial source of IL-25 in patients with chronic rhinosinusitis with nasal polyps.
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DOI:
10.1016/j.jaci.2018.03.019
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发表时间:
2018-08
影响因子:
14.2
通讯作者:
Cohen, Noam A.
中科院分区:
文献类型:
--
作者:
Kohanski, Michael A.;Workman, Alan D.;Patel, Neil N.;Hung, Li -Yin;Shtraks, Julie P.;Chen, Bei;Blasetti, Marie;Doghramji, Laurel;Kennedy, David W.;Adappa, Nithin D.;Palmer, James N.;Herbert, De'Broski R.;Cohen, Noam A.
关键词:
IL-25 can function as an early signal for the respiratory Type 2 response characteristic of allergic asthma and chronic rhinosinusitis with nasal polyps (CRSwNP). In the mouse gut, tuft cells are the epithelial source of IL-25. However, the source of human airway epithelial IL-25 has remained elusive. In this study, we sought to determine if the solitary chemosensory cell (SCC) is the predominant source of IL-25 in the sinonasal epithelium. Flow cytometry and immunofluorescence for SCCs and IL-25 were used to interrogate polyp and turbinate tissue from patients with chronic rhinosinusitis with nasal polyps (CRSwNP). Mucus was collected during acute inflammatory exacerbations from patients with CRSwNP or CRS without nasal polyps and IL-25 levels determined by Enzyme Linked Immuno-Sorbent Assay (ELISA). Lastly, sinonasal epithelial cultures derived from polyp and turbinate tissue were stimulated with IL-13 and analyzed for SCC proliferation and IL-25 production. This study demonstrates that a discrete cell type, likely a solitary chemosensory cell (SCC), characterized by expression of the taste-associated G-protein, gustducin, and the intestinal tuft cell marker, doublecortin-like kinase 1, DCAMKL1, is the predominant source of IL-25 in the human upper airway. Additionally, we show that patients with CRSwNP have increased numbers of SCCs in nasal polyp tissue and in-vitro IL-13 exposure both increased proliferation and induced apical secretion of IL-25 into the mucus layer. Inflammatory sinus polyps but not adjacent turbinate tissue have an expansion of a solitary chemosensory cell population that is the source of epithelial IL-25. Nasal polyps have an expansion of a “taster” solitary chemosensory cell (SCC) population that apically secretes the pro-Type 2 cytokine IL-25. Over abundance of upper airway SCC’s together with prolonged epithelial barrier breakdown may be a driver towards Type 2 inflammation. Quantifying IL-25 from sinus mucus may be a useful biomarker for type-2 inflammatory status.
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影响因子:
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DOI:
10.1126/science.aaf1648
发表时间:
2016-03-18
期刊:
Science (New York, N.Y.)
影响因子:
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