Related Experiment Video
Updated: Jul 5, 2026
06:56
Isolation and Characterization of Neutrophil-derived Microparticles for Functional Studies
Published on: March 2, 2018
Isolation and functional analysis of neutrophils
Robert A Clark1, William M Nauseef1
1University of Iowa, Iowa City, Iowa.
Current Protocols in Immunology
|April 25, 2008
Summary
This study details methods for isolating neutrophils and assessing their function, including phagocytosis and microbicidal assays. It covers oxidative metabolism, reactive oxygen species detection, and quantitation of superoxide and hydrogen peroxide.
Area of Science:
- Immunology
- Cell Biology
- Biochemistry
Background:
- Neutrophils (polymorphonuclear leukocytes; PMN) play a critical role in the innate immune system.
- Assessing neutrophil function is crucial for understanding immune responses and diagnosing deficiencies.
Purpose of the Study:
- To describe methods for isolating high-purity neutrophils.
- To present various assays for evaluating neutrophil phagocytic capacity and microbicidal activity.
- To detail techniques for measuring neutrophil oxidative metabolism and reactive oxygen species production.
Main Methods:
- Isolation of high-purity neutrophils (PMN).
- In vitro phagocytic capacity assay.
- Microbicidal assays (lysostaphin, differential centrifugation).
- Nitroblue tetrazolium (NBT) reduction slide test for reactive oxygen products.
- Quantitation of superoxide anion (kinetic, static, and 'broken cell' assays).
- Measurement of hydrogen peroxide formation.
Main Results:
- Established protocols for neutrophil isolation and functional assessment.
- Demonstrated methods to evaluate phagocytosis and killing of microbes.
- Detailed the measurement of neutrophil oxidative burst, including superoxide and hydrogen peroxide production.
- Presented both qualitative (NBT test) and quantitative assays for reactive oxygen species.
Conclusions:
- The described methods provide a comprehensive toolkit for studying neutrophil function.
- Accurate assessment of neutrophil oxidative metabolism and reactive oxygen species generation is vital for immunological research.
- These assays facilitate the investigation of neutrophil-mediated immunity and related disorders.
