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Updated: Jul 18, 2026

An Optimized Method for Isolating and Expanding Invariant Natural Killer T Cells from Mouse Spleen
Published on: October 29, 2015
Functional subsets of mouse natural killer cells.
Yoshihiro Hayakawa1, Nicholas D Huntington, Stephen L Nutt
1Cancer Immunology Program, Sir Donald and Lady Trescowick Laboratories, Peter MacCallum Cancer Centre, East Melbourne, Victoria, Australia.
Researchers identified two mouse natural killer (NK) cell subsets, CD27(hi) and CD27(lo), which are comparable to human CD56 NK cell subsets. This finding advances understanding of NK cell heterogeneity and immune responses.
Area of Science:
- Immunology
- Cell Biology
Background:
- Human natural killer (NK) cells are classified into CD56(bright) and CD56(dim) subsets based on CD56 expression.
- Mouse NK cells lack CD56, making direct comparison to human subsets challenging.
Purpose of the Study:
- To identify and characterize mouse NK cell subsets comparable to human CD56 subsets.
- To investigate the functional and phenotypic similarities and differences between mouse and human NK cell subsets.
Main Methods:
- Flow cytometry analysis of mouse NK cells.
- Phenotypic and functional characterization of identified mouse NK cell subsets.
Main Results:
- Mouse NK cells can be subdivided into CD27(hi) and CD27(lo) subsets.
- These mouse subsets exhibit similarities and distinct differences compared to human CD56(bright) and CD56(dim) NK cell subsets.
Conclusions:
- CD27 expression serves as a marker for distinct mouse NK cell subsets.
- Understanding interspecies NK cell heterogeneity is crucial for studying immune responses and diseases.
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