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Updated: May 13, 2026

Generation of Human Nasal Epithelial Cell Spheroids for Individualized Cystic Fibrosis Transmembrane Conductance Regulator Study
Published on: April 11, 2018
Pathogenesis and management of nasal polyposis in cystic fibrosis
Jochen G Mainz1, Assen Koitschev
1Cystic Fibrosis Center, Department of Paediatrics, Paediatric Pulmonology, Jena University Hospital, Kochstrasse 2,07740 Jena, Germany. jochen.mainz@med.uni-jena.de
Insights
Cystic fibrosis (CF) patients often develop nasal polyposis (NP), a condition with unclear causes. Current treatments for CF-NP lack standardization and require more clinical trials for efficacy validation.
Area of Science:
- Otolaryngology
- Pulmonology
- Genetics
Background:
- Nasal polyposis (NP) affects up to 50% of cystic fibrosis (CF) patients from preschool age.
- NP is rare in non-CF children, suggesting CF-specific pathogenetic factors.
- Defective epithelial ion transport and impaired mucociliary clearance in CF contribute to NP development.
Purpose of the Study:
- To review the current understanding of NP pathogenesis in CF.
- To discuss existing treatment modalities for CF-NP.
- To highlight the need for standardized, evidence-based treatment strategies.
Main Methods:
- Literature review of NP in CF patients.
- Analysis of pathogenetic mechanisms in CF-related NP.
- Evaluation of current and proposed therapeutic interventions.
Main Results:
- Pathogenesis of CF-NP is not fully understood but involves defective ion transport and chronic inflammation.
- CF-NP is currently not curable, with treatments focusing on clinical stabilization.
- Existing treatments, including topical steroids and CF-specific therapies, lack standardized protocols and robust clinical trial data.
Conclusions:
- CF-NP management requires further investigation and evidence-based approaches.
- Controlled clinical trials are urgently needed to evaluate treatment efficacy.
- Interdisciplinary collaboration is essential for advancing CF-NP care.
Abstract:
Beginning in preschool age, during their lives, upto 50% of cystic fibrosis (CF) patients experience obstructing nasal polyposis (NP), which is rare in non-CF children. Pathogenetic factors of NP in general and especially in CF are still obscure. However, defective epithelial ion transport from mucosal glands plays a central role in CF, and viscous secretions impair mucociliary clearance, promoting chronic pathogen colonization and neutrophil-dominated chronic inflammation.Presently, CF-NP is not curable but can be clinically stabilized,though the large variety of proposed treatment modalities indicates a lack of standardization and of evidence of treatment efficacy. When conservative measures are exhausted, surgical intervention combining individually adapted endoscopic sinus surgery and supportive conservative treatment is performed. Topical steroids, approved as the gold standard for non-CF NP, may be beneficial, but they are discussed to be less effective in neutrophilic inflammation,and CF-specific antimicrobial and mucolytic therapy, as is true of all treatment modalities, urgently requires evaluation by controlled clinical trials within interdisciplinary networks.
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