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Updated: May 16, 2026
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Flow Cytometric Isolation of Primary Murine Type II Alveolar Epithelial Cells for Functional and Molecular Studies
Published on: December 26, 2012
Preparation of rat lung cells for flow cytometry
Methods in Molecular Biology (Clifton, N.J.)
|November 15, 2012
Summary
This study introduces subtilisin as an effective enzyme for isolating diverse lung cells, including functional Clara cells, while preserving cell surface markers. DNAse is crucial for preventing cell reaggregation during this process.
Area of Science:
- Pulmonary cell biology
- Cell isolation techniques
- Respiratory research
Background:
- The lung comprises over 40 distinct cell types, necessitating specific isolation methods.
- Traditional lung cell isolation uses various proteases, often leading to loss of cell surface markers.
- DNAse is essential for preventing cell reaggregation post-isolation.
Purpose of the Study:
- To describe a refined procedure for isolating lung cells.
- To highlight the effectiveness of subtilisin for lung cell preparation.
- To demonstrate the successful isolation of functional Clara cells using subtilisin and flow cytometry.
Main Methods:
- Utilized the proteolytic enzyme subtilisin for lung cell dispersion.
- Incorporated DNAse to minimize cellular reaggregation.
- Employed flow cytometry for the separation of Clara cells.
Main Results:
- Subtilisin proved effective in preparing functional Clara cells.
- Similar procedures were successful for isolating Type II cells.
- Macrophages can be recovered via lung lavage during perfusion.
Conclusions:
- Subtilisin offers an improved method for lung cell isolation, preserving cell integrity.
- This technique is particularly valuable for obtaining specific, functional lung cell populations like Clara cells.
- The described method advances cell-based research in pulmonary science.
