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Airway remodeling in asthma
1West Australian Sleep Disorders Research Institute, Queen Elizabeth II Medical Centre, School of Medicine and Pharmacology, University of Western Australia, Perth, Australia. ajames@it.net.au
Current Opinion in Pulmonary Medicine
|December 14, 2004
Summary
Airway remodeling in asthma is complex, involving various cell types and stimuli. Current research suggests "remodeling" is becoming less specific, similar to "asthma," encompassing many unrelated processes.
Area of Science:
- Pulmonary Medicine
- Cell Biology
- Biomedical Engineering
Background:
- Asthma involves complex airway remodeling processes.
- Recent studies explore cellular and molecular mechanisms of airway remodeling.
- Understanding remodeling is crucial for asthma management.
Purpose of the Study:
- To review recent studies on asthma airway remodeling.
- To analyze animal and in vitro models of remodeling.
- To assess the specificity of the term "remodeling" in asthma research.
Main Methods:
- Review of recent scientific literature on asthma remodeling.
- Analysis of studies using animal models.
- Examination of in vitro studies on mesenchymal cells and extracellular matrix.
Main Results:
- Key areas include smooth muscle plasticity, extracellular matrix role, and signaling pathways.
- Mitogenic stimuli from various cells and mechanical stress are implicated.
- The functional consequences challenge the role of remodeling, suggesting it may be protective or a continuum to scarring.
Conclusions:
- The term "remodeling" in asthma is becoming less specific.
- It encompasses numerous, potentially unrelated, processes.
- Its utility is comparable to the term "asthma" itself.