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Airway mechanical compression: its role in asthma pathogenesis and progression
Punnam Chander Veerati1,2, Jennifer A Mitchel3, Andrew T Reid1,2
1School of Medicine and Public Health, University of Newcastle, Callaghan, Australia.
Summary
Mechanical forces, like airway buckling in asthma, can worsen lung disease. This review explores how these forces impact asthma pathology and epithelial cell behavior, offering insights into disease progression.
Area of Science:
- Pulmonary Medicine
- Biophysics
- Cell Biology
Background:
- The lung is a mechanically active organ, and abnormal mechanical forces can lead to disease.
- In asthma, bronchoconstriction causes airway narrowing and buckling, which may perpetuate disease processes.
Purpose of the Study:
- To review experimental data on the impact of mechanical forces in asthma pathogenesis.
- To explore how mechanical compression affects airway epithelium properties and asthma mediators.
Main Methods:
- Review of data from in vitro, ex vivo, and in vivo experimental models.
- Analysis of studies investigating mechanical forces in asthma.
Main Results:
- Mechanical compression alters airway epithelium biology and biophysics.
- Observed effects include epidermal growth factor receptor pathway activation, mediator overproduction, goblet cell hyperplasia, and epithelial phase transitions.
Conclusions:
- Pathological mechanical forces, particularly airway buckling, play a significant role in asthma pathogenesis.
- Further research is needed on mechanical forces' impact, especially concerning asthma exacerbation triggers like viral infections.
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