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A High-throughput Assay to Assess and Quantify Neutrophil Extracellular Trap Formation
Published on: January 29, 2019
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Induction, Isolation, and Characterization of Human Neutrophil Extracellular Traps (NETs) to Be Used in Functional
Quang Khai Doan1,2, Cindy Qiu1,2,3, Patrice Decker4,5
1University Sorbonne Paris Nord, Li2P, Bobigny, France.
Methods in Molecular Biology (Clifton, N.J.)
|November 21, 2025
Summary
Neutrophil extracellular traps (NETs) are DNA-protein complexes released by neutrophils. This study details methods to isolate and characterize NETs, crucial for understanding their dual role in health and disease.
Area of Science:
- Immunology
- Cell Biology
Background:
- Polymorphonuclear neutrophils (PMNs) are key immune cells, comprising ~60% of human leukocytes.
- Activated PMNs release neutrophil extracellular traps (NETs), DNA and protein complexes with roles in host defense and potential involvement in autoimmune diseases.
- The dual nature of NETs necessitates a deeper understanding of their properties and functions in both physiological and pathological states.
Purpose of the Study:
- To present a comprehensive protocol for the induction and isolation of NETs.
- To describe biochemical and imaging methods for characterizing NETs.
- To enable detailed functional studies of NETs by providing reliable and well-characterized samples.
Main Methods:
- Induction of NETs from PMNs.
- Isolation of NETs using specific protocols.
- Biochemical assays to confirm NET composition.
- Imaging techniques (e.g., microscopy) to visualize NET structure and extracellular fibers.
Main Results:
- A reliable method for generating and isolating NETs is established.
- Characterization confirms the obtained structures meet the definition of NETs, exhibiting typical extracellular fibers.
- The NETs produced are suitable for subsequent functional and biological assessments.
Conclusions:
- The described methodology provides essential tools for researchers studying NETs.
- Accurate characterization of NETs is vital for elucidating their complex roles in immunity and disease.
- This protocol facilitates further investigation into the biological activities of NETs in various contexts.
