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Updated: May 13, 2025
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Flow Cytometry-based Assay for the Monitoring of NK Cell Functions
Published on: October 30, 2016
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Repeated CD107a Staining Enables Identification of Serial Degranulating NK Cells
Jens Niemann1, Maren Claus1, Vanna Imširović2
1Department for Immunology, Leibniz Research Centre for Working Environment and Human Factors (IfADo), Dortmund, Germany.
European Journal of Immunology
|May 10, 2025
Summary
Serial degranulating Natural Killer (NK) cells, crucial for immune responses, can be identified through repeated target cell interactions. A novel flow cytometry method using anti-CD107a antibodies enables their characterization and isolation.
Area of Science:
- Immunology
- Cell Biology
- Flow Cytometry
Background:
- Natural Killer (NK) cells are critical immune cells involved in innate immunity.
- Understanding NK cell degranulation is vital for studying immune responses.
- Previous methods lacked precision in identifying serially degranulating NK cells.
Purpose of the Study:
- To develop and validate a method for identifying and isolating serially degranulating NK cells.
- To characterize NK cell behavior after repeated target cell encounters.
Main Methods:
- Utilized flow cytometry for cell analysis.
- Employed differentially labeled anti-CD107a (LAMP1) antibodies for multiple staining events.
- Applied the method to identify NK cells upon repeated target cell contact.
Main Results:
- Successfully identified Natural Killer (NK) cells undergoing serial degranulation.
- Demonstrated that multiple staining events correlate with repeated target cell contact.
- Enabled the characterization of NK cells based on their degranulation patterns.
Conclusions:
- The developed flow cytometry method accurately identifies and allows for the isolation of serially degranulating NK cells.
- This technique provides a valuable tool for studying NK cell function and immune surveillance.
