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Updated: May 24, 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.)
|February 22, 2012
Summary
This study introduces subtilisin as an effective enzyme for isolating lung cells, particularly functional Clara cells, while preserving cell surface markers. DNAse is crucial for preventing cell reaggregation during this process.
Area of Science:
- Pulmonary cell biology
- Biochemistry
- Cell isolation techniques
Background:
- The lung comprises over 40 distinct cell types, with specific cell isolation methods often requiring tailored enzyme cocktails.
- Conventional proteolytic enzymes may compromise cell surface marker integrity.
- DNAse is essential for preventing cellular reaggregation post-isolation.
Purpose of the Study:
- To describe a refined procedure for isolating lung cells using the proteolytic enzyme subtilisin.
- To highlight the effectiveness of subtilisin in preparing functional Clara cells.
- To demonstrate the utility of this method for isolating other lung cell types, such as Type II cells and macrophages.
Main Methods:
- Utilized the proteolytic enzyme subtilisin for lung cell dispersion.
- Employed DNAse to minimize cellular reaggregation.
- Separated Clara cells using flow cytometry.
- Lavage technique for macrophage recovery during perfusion.
Main Results:
- Subtilisin proved effective in preparing functional Clara cells.
- The procedure is adaptable for isolating Type II cells.
- Macrophages can be recovered via lavage during perfusion.
Conclusions:
- Subtilisin offers an improved method for lung cell isolation, preserving cell surface markers.
- This technique facilitates the preparation of specific, functional lung cell populations.
- The described method provides a versatile approach for pulmonary cell research.
