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Updated: Nov 8, 2025

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Published on: August 8, 2025
Natural Killer Cells: From Innate to Adaptive Features.
Adriana M Mujal1, Rebecca B Delconte1, Joseph C Sun1,2
1Immunology Program, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA;
Natural killer (NK) cells are versatile immune cells. They exhibit both rapid innate responses and adaptive immune functions like memory, crucial for fighting infections and cancer.
Area of Science:
- Immunology
- Cell Biology
Background:
- Natural killer (NK) cells are key innate immune cells.
- NK cells are vital for host defense against pathogens and cancer.
Purpose of the Study:
- To review the dual role of NK cells in innate and adaptive immunity.
- To highlight the versatility of NK cells in human immune responses.
Main Methods:
- Literature review of NK cell research.
- Analysis of studies on NK cell effector functions and adaptive processes.
Main Results:
- NK cells possess rapid effector functions characteristic of innate immunity.
- NK cells demonstrate adaptive immune capabilities, including clonal expansion and memory formation.
- This adaptability is crucial for effective human immune responses.
Conclusions:
- NK cells bridge innate and adaptive immunity.
- Their versatile functions are critical for combating infections and cancer.
- Understanding NK cell plasticity enhances knowledge of human immunity.
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