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Pleural free cells in the mouse: quantitative and qualitative cell morphology
Archivum Histologicum Japonicum = Nihon Soshikigaku Kiroku
|December 1, 1982
Summary
Mouse pleural cavity free cells were analyzed. Females have significantly more small pleural cells than males, leading to a higher total cell count in females. Large pleural cells were identified as macrophages.
Area of Science:
- Immunology
- Cell Biology
- Morphology
Background:
- The pleural cavity contains free-floating cells, but their composition and sexual dimorphism are not fully understood.
- Previous studies have characterized peritoneal cells, providing a basis for comparison.
Purpose of the Study:
- To quantitatively and qualitatively analyze free cells in the mouse pleural cavity.
- To investigate potential sex-based differences in pleural cell populations.
Main Methods:
- Quantitative analysis using a Coulter counter and channelyzer for cell size distribution.
- Qualitative morphological examination for cell type classification.
- Comparison of pleural cells with peritoneal cells.
Main Results:
- Pleural free cells comprised two main populations: small and large types.
- Small pleural cells were approximately twice as numerous in females compared to males.
- The total number of pleural cells was significantly higher in females.
- Small cells resembled peritoneal mononuclear cells; large cells were identified as macrophages, showing variability compared to peritoneal macrophages.
Conclusions:
- Pleural cell populations exhibit sexual dimorphism, with females having a greater number of small cells.
- The small pleural cells are likely mononuclear cells, and the large cells are macrophages.
- Pleural macrophages display more variable features than peritoneal macrophages.