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Phagocytosis of 32P-labelled E. coli by human polymorphonuclear cells (PMN). Adaptation of a method
Acta Pathologica Et Microbiologica Scandinavica. Section B, Microbiology
|August 1, 1978
Abstract:
A system for the study of phagocytosis by human polymorphonuclear cells (PMN) is presented. The leucocytes are harvested from heparinized whole blood by the Bøyum method and transferred to glass tubes to yield glass adherent monolayers of leucocytes, approximately 80% of which were PMN. A strain of E. coli labelled by 32P served as test organism.
Insights
This study presents a novel system for analyzing phagocytosis by human polymorphonuclear cells (PMN). The method utilizes E. coli as a test organism to quantify this crucial immune response.
Area of Science:
- Immunology
- Cell Biology
- Microbiology
Background:
- Phagocytosis is a critical cellular process for immune defense.
- Human polymorphonuclear cells (PMN) are key phagocytic immune cells.
- Studying PMN phagocytosis requires reliable and reproducible experimental systems.
Purpose of the Study:
- To develop and present a system for studying phagocytosis by human polymorphonuclear cells (PMN).
- To establish a method for quantifying the phagocytic activity of PMN.
Main Methods:
- Human polymorphonuclear cells (PMN) were isolated from heparinized whole blood using the Bøyum method.
- Leukocyte monolayers were generated by adhering cells to glass tubes, achieving approximately 80% PMN purity.
- A 32P-labeled strain of E. coli was employed as the test organism for phagocytosis assays.
Main Results:
- The described system allows for the preparation of glass-adherent PMN monolayers.
- The use of radiolabeled E. coli enables quantitative assessment of phagocytosis.
Conclusions:
- The presented system provides a robust method for investigating phagocytosis by human PMN.
- This methodology facilitates the study of PMN's role in host defense against bacterial pathogens.