ArticleEuropean archives of oto-rhino-laryngology : official journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery2023
Acquired CFTR dysfunction and dense distribution of ionocytes in nasal mucosa of children with CRS.
Article in European archives of oto-rhino-laryngology : official journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery, 2023. 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, 5 citations in OpenAlex.
- Understanding Nasal Polyposis: The Roles of Ion Channels, Inflammation, Ionocytes, and Prostaglandin E2-The IJournal of clinical medicine · 2026Article
- Considerations for early life genetic therapies in cystic fibrosis.American journal of physiology. Lung cellular and molecular physiology · 2026Review
- [Research progress on epithelial mucosal barrier impairment contributing to chronic rhinosinusitis].Lin chuang er bi yan hou tou jing wai ke za zhi = Journal of clinical otorhinolaryngology head and neck surgery · 2026Review
- Innate immune function in chronic rhinosinusitis.The Journal of allergy and clinical immunology · 2025Article
- IL-13 induces loss of CFTR in ionocytes and reduces airway epithelial fluid absorption.The Journal of clinical investigation · 2024Article
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Authors and funding
14 authors at 2 institutions in 1 country.
Funding
Abstract
backgroundIonocytes are rare cells in airway epithelium characterized by a high expression of CFTR.
objectivesTo investigate the morphology and distribution of ionocytes and the function of CFTR in the nasal mucosal epithelium of children.
methodsThe exfoliated cells of nasal mucosa from 101 children were detected using flow cytometry to analyze the number of ionocytes and CFTR and the difference of CFTR function. Nasal mucosa and polyps were collected from 10 children with CRSwNP. The RNAscope of FOXI1 and CFTR was detected in pathological paraffin sections. The expression and distribution of ionocytes and CFTR in nasal mucosa and polyp epithelium were observed.
resultsIn CRS patients, the number of ionocytes in the nasal epithelium was lower and the number of ionocytes that did not express CFTR was higher, and the function of CFTR was also decreased. The expression of CFTR in the nasal mucosa of CRS showed the characteristics of local dense distribution and increased as the inflammation expanded. The ionocytes were "tadpole-shaped" in the epithelium and gathered in the area of high CFTR expression, the intracellular CFTR was expanded in clusters. Ionocytes that did not express CFTR was more common in the nasal polyps.
conclusionsThe number of ionocytes and the function of CFTR in nasal mucosa of CRS patients decreased. With the expansion of inflammation, CFTR and ionocytes showed more obvious dense distribution. Some ionocytes lost the expression of CFTR and did not show the "tadpole" shape, which may be related to the occurrence of polyps.
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