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Newtonian cell interactions shape natural killer cell education
Jodie P Goodridge1,2, Björn Önfelt3,4, Karl-Johan Malmberg1,2,5
1The KG Jebsen Center for Cancer Immunotherapy, Institute of Clinical Medicine, University of Oslo, Oslo, Norway.
Immunological Reviews
|August 19, 2015
Summary
Natural killer (NK) cell education follows Newtonian principles, where interactions shape function. Cumulative physical cell interactions, not just signals, drive NK cell diversity and effector function persistence.
Area of Science:
- Immunology
- Cell Biology
- Biophysics
Background:
- Natural killer (NK) cells are crucial innate immune cells.
- NK cell education, a process shaping their functional potential, is complex.
- Existing models don't fully explain NK cell functional diversity.
Purpose of the Study:
- To propose a Newtonian framework for understanding NK cell education.
- To elucidate how physical interactions influence NK cell functional potential.
- To explain the development of NK cell functional diversity.
Main Methods:
- Conceptual framework based on Newton's third law.
- Analysis of cumulative physical interactions between cells.
- Examination of homeostatic drivers and inhibitory signaling.
Main Results:
- NK cell education dynamics resemble classical mechanics (action-reaction).
- Inhibitory signaling promotes effector function persistence.
- Non-cytolytic interactions lead to functional attenuation.
- Functional diversity arises from qualitatively different physical interactions.
Conclusions:
- A Newtonian perspective offers a dynamic, chronological view of NK cell education.
- NK cell fate is adaptable, influenced by environmental interactions.
- Physical interactions, rather than transcriptional programs, are key to NK cell functional diversity.