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Related Experiment Video

Updated: Jul 22, 2026

Advanced Imaging of Lung Homing Human Lymphocytes in an Experimental In Vivo Model of Allergic Inflammation Based on Light-sheet Microscopy
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Advanced Imaging of Lung Homing Human Lymphocytes in an Experimental In Vivo Model of Allergic Inflammation Based on Light-sheet Microscopy

Published on: April 16, 2019

Modified epithelial cell distribution in chronic airways inflammation

C Chapelin1, A Coste, L Gilain

  • 1Département d'Histologie, Faculté de Médecine de l'Université Paris XII, Créteil, France.

The European Respiratory Journal
|December 1, 1996
PubMed
Summary

This study examined changes in nasal epithelial cell populations in patients with nonallergic chronic rhinitis. Using brushing and staining techniques, the researchers found that patients had fewer ciliated cells and more goblet and basal cells compared to healthy individuals. Immunolabelling revealed two distinct cell populations, possibly including preciliated cells. These findings suggest that chronic inflammation modifies epithelial cell composition and differentiation. The study highlights the usefulness of cytological methods in assessing airway epithelium in respiratory diseases.

Keywords:
airway epitheliumchronic rhinitiscell quantificationnasal brushing

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Published on: February 21, 2025

Area of Science:

  • Respiratory physiology in clinical medicine
  • Cellular pathology in chronic inflammation
  • Epithelial cell biology in airway diseases

Background:

Chronic respiratory diseases are associated with structural changes in airway epithelium. Prior research has shown that epithelial cell types can shift under pathological conditions. However, precise quantification of these changes remains limited. Established methods have focused on histological analysis rather than cytological approaches. This gap motivated the use of brushing techniques to assess cell distribution. No prior work had resolved the specific cell populations affected in nonallergic chronic rhinitis. The role of ciliated cells in epithelial function is well-documented. This study aimed to address the lack of quantitative data on epithelial cell modifications.

Purpose Of The Study:

The study aimed to evaluate epithelial cell distribution in patients with nonallergic chronic rhinitis. Chronic inflammation is known to alter epithelial composition, but the extent of these changes is unclear. The researchers sought to compare nasal airway cells from patients and controls. A cytological approach was chosen to allow precise quantification. The goal was to assess whether ciliated, goblet, and basal cells differ between groups. The study also aimed to examine the presence of ciliary differentiation markers. This work sought to clarify how chronic inflammation affects epithelial cell populations. The findings could help identify diagnostic or prognostic markers.

Main Methods:

Nasal airway cells were collected using brushing from 12 patients with nonallergic chronic rhinitis. Control samples were obtained from eight healthy individuals using the same method. Cytocentrifugation was used to prepare cell samples for analysis. Cell populations were quantified after staining with May-Grünwald Giemsa. Immunolabelling with alpha-tubulin was used to detect ciliary differentiation. Positive staining was observed in ciliated cells (LC+), and in some small round cells (LC-). The distribution of LC+ and LC- cells was compared between patients and controls. This approach allowed the researchers to assess epithelial cell modifications.

Main Results:

Rhinitis patients had significantly lower percentages of ciliated cells compared to controls. The percentage of ciliated cells was 32 +/- 2% in patients versus 59 +/- 4% in controls. Goblet cell percentages were higher in patients (37 +/- 2%) than in controls (24 +/- 3%). Basal cell percentages were also elevated in patients (18 +/- 2%) compared to controls (9 +/- 1%). Tubulin immunolabelling revealed LC+ cells in ciliated structures. LC- cells were detected in small round cells without cilia. Patients showed lower percentages of LC+ and higher percentages of LC- cells. These findings suggest altered epithelial differentiation in chronic rhinitis.

Conclusions:

The study found significant changes in epithelial cell distribution in chronic rhinitis patients. Lower ciliated cell percentages and higher goblet and basal cell percentages were observed. Tubulin immunolabelling confirmed the presence of LC+ and LC- cell populations. These results suggest modifications in epithelial differentiation and proliferation. The findings support the idea that chronic inflammation affects epithelial composition. The use of nasal brushing and immunolabelling proved effective for quantifying these changes. The presence of LC- cells may indicate a transitional cell population. These observations may help clarify the pathophysiology of chronic airway inflammation.

The study suggests that chronic rhinitis is associated with reduced ciliated cells and increased goblet and basal cells compared to controls.

The researchers used alpha-tubulin immunolabelling to detect ciliated cells and distinguish LC+ and LC- populations.

Nasal brushing allows direct sampling of epithelial cells, enabling precise quantification of cell populations in a noninvasive manner.

LC- cells may represent a transitional population, possibly preciliated cells, as suggested by their distinct staining pattern.

The study compares epithelial cell percentages in 12 rhinitis patients with those in eight healthy controls.

The study implies that chronic inflammation may alter epithelial differentiation and proliferation patterns in nasal airways.