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.

Oncogene
|December 6, 2022
PubMed

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.

Related Concept Videos

Cytotoxic T Cells-mediated Immune Response01:27

Cytotoxic T Cells-mediated Immune Response

Cytotoxic T cells are a vital component of the immune system. They have the remarkable ability to identify and target antigens on infected or abnormal cells. These antigens often originate from intracellular pathogens such as viruses or abnormal proteins cancer cells produce.
Immunological surveillance is the ability of immune cells to monitor and eliminate infected cells with intracellular pathogens, neoplastically transformed cells, and cells with non-self antigens. Cytotoxic T cells and NK...
1.1K
Cells of the Innate Immune Response01:28

Cells of the Innate Immune Response

The innate immune response is an immediate and non-specific response against pathogens, acting swiftly to prevent the spread of infections. The primary cells involved in this response are phagocytes and natural killer (NK) cells.
Phagocytes
Phagocytes police the peripheral tissues by removing cellular debris and responding to the invasion of foreign substances or pathogens. Many phagocytes attack and remove microorganisms even before lymphocytes detect them. The human body has two general...
1.9K
Immune Surveillance by NK Cells and Phagocytes01:25

Immune Surveillance by NK Cells and Phagocytes

Immune surveillance is an integral part of the innate immune system, involving the continuous monitoring of peripheral tissues to detect and respond to pathogens, infected cells, or cancerous cells. This surveillance is conducted primarily by natural killer (NK) cells and phagocytes, which employ distinct but complementary mechanisms to identify and eliminate threats.
Natural Killer Cells: The Fast Responders
NK cells are large granular lymphocytes found in the blood and lymphatic system. These...
1.6K