Related Experiment Videos
The alveolar type II epithelial cell: a multifunctional pneumocyte
V Castranova1, J Rabovsky, J H Tucker
1Division of Respiratory Disease Studies, National Institute for Occupational Safety and Health, Morgantown, West Virginia.
Toxicology and Applied Pharmacology
|May 1, 1988
Summary
Alveolar type II cells, crucial for lung function and repair, are key to understanding pulmonary disease. New isolation techniques allow for studying their response to environmental pollutants.
Area of Science:
- Pulmonary Medicine
- Cell Biology
- Toxicology
Background:
- Alveolar epithelium comprises type I and type II cells.
- Type I cells cover 96% of the surface area, facilitating gas exchange.
- Type II cells, though fewer, are vital for surfactant production, metabolism, water transport, and lung repair.
Purpose of the Study:
- To highlight the multifaceted roles of alveolar type II cells in lung physiology and pathology.
- To introduce the significance of newly developed techniques for isolating alveolar type II cells.
- To emphasize the potential of these isolated cells in bioassay systems for environmental health research.
Main Methods:
- Review of the known functions of alveolar type II cells.
- Description of advancements in cell isolation and purification techniques.
- Discussion of the application of isolated alveolar type II cells in bioassays.
Main Results:
- Alveolar type II cells perform critical functions including surfactant secretion, xenobiotic metabolism, water transport, and epithelial regeneration.
- Isolation and purification of alveolar type II cells are now feasible.
- These purified cells can serve as valuable models for toxicological studies.
Conclusions:
- Alveolar type II cells are essential for maintaining normal lung function and responding to injury.
- Availability of isolated alveolar type II cells provides a powerful tool for investigating the effects of pollutants.
- This research contributes to understanding the etiology of pulmonary diseases and monitoring environmental health impacts.