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Updated: Aug 18, 2025

Analysis of Human Natural Killer Cell Metabolism
Published on: June 22, 2020
Metabolic hallmarks of natural killer cells in the tumor microenvironment and implications in cancer immunotherapy
Yuqing Yang1, Lin Chen1, Bohao Zheng2
1Department of Obstetrics and Gynecology, Key Laboratory of Birth Defects and Related Diseases of Women and Children of MOE and State Key Laboratory of Biotherapy, West China Second Hospital, Sichuan University and Collaborative Innovation Center, Chengdu, P. R. China.
Abstract:
Natural killer (NK) cells belong to the early responder group against cancerous cells and viral infection. Emerging evidence reveals that distinct metabolic reprogramming occurs concurrently with activation and memory formation of NK cells. However, metabolism of NK cells is disturbed in the tumor immune microenvironment, which may promote tumor progression while limiting immunotherapy responses. In this review, we highlight how cell metabolism influences NK cell activity, the key molecular regulators of NK cell metabolism, and emerging strategies to alter metabolism to improve cytotoxicity of NK cells to kill tumor cells for cancer patients.
Insights
Natural killer (NK) cells fight cancer and infections. Their metabolism is crucial for function but altered in tumors, impacting cancer immunotherapy. Strategies to modulate NK cell metabolism can enhance tumor cell killing.
Area of Science:
- Immunology
- Cellular Metabolism
- Cancer Biology
Background:
- Natural killer (NK) cells are critical early responders against viral infections and cancer.
- NK cell activation, memory formation, and function are intrinsically linked to metabolic reprogramming.
- Tumor immune microenvironments disrupt NK cell metabolism, hindering anti-cancer activity and immunotherapy efficacy.
Purpose of the Study:
- To review the influence of cell metabolism on NK cell activity.
- To identify key molecular regulators governing NK cell metabolism.
- To explore strategies for metabolic modulation to enhance NK cell anti-tumor cytotoxicity.
Main Methods:
- Literature review of studies on NK cell metabolism.
- Analysis of molecular mechanisms regulating NK cell metabolic pathways.
- Synthesis of current and emerging therapeutic strategies targeting NK cell metabolism.
Main Results:
- Cell metabolism significantly impacts NK cell effector functions, including cytotoxicity and cytokine production.
- Specific metabolic pathways and their regulators are crucial for NK cell activation and memory.
- Metabolic dysfunction within the tumor microenvironment impairs NK cell anti-tumor responses.
Conclusions:
- Metabolic reprogramming is a key determinant of NK cell function in health and disease.
- Targeting NK cell metabolism offers a promising avenue to overcome tumor immune evasion.
- Modulating NK cell metabolism can potentially improve the efficacy of cancer immunotherapies.
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