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Updated: Dec 15, 2025

Measuring Mitochondrial Function of Na&#239;ve and Effector CD8 T Cells
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Metabolic Reprogramming in Resting and Activated Immune Cells.

H Sun1, X Li1

  • 1Department of Pathology and Laboratory Medicine, Perelman School of Medicine, University of Pennsylvania, PA 19104, USA.

Metabolomics : Open Access
|July 14, 2020
PubMed
Summary
This summary is machine-generated.

Immune cells reprogram metabolism for energy and building blocks during activation. Key pathways like glycolysis and fatty acid oxidation support immune functions and pathogen defense.

Keywords:
Bio-precursorsGlutaminolysisMetabolic programming

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Area of Science:

  • Immunology
  • Metabolic Biology
  • Cellular Metabolism

Background:

  • Immune cell activation and proliferation are intrinsically linked to metabolic reprogramming.
  • Activated immune cells exhibit metabolic plasticity, mirroring tumor cells, to rapidly respond to stimuli.
  • Metabolic shifts provide essential energy and biosynthetic precursors for effective immune responses.

Purpose of the Study:

  • To review the metabolic processes engaged by immune cells based on their functional requirements.
  • To highlight the critical roles of major metabolic pathways in immune cell activation and differentiation.
  • To focus on the metabolic adaptations in T cells and macrophages during immune responses.

Main Methods:

  • Literature review of immune cell metabolism.
  • Analysis of major metabolic pathways including glycolysis, glutaminolysis, fatty acid metabolism, and oxidative phosphorylation.
  • Focus on T cells and macrophages as model systems.

Main Results:

  • Immune cells utilize specific metabolic pathways to meet functional demands during pathogen defense.
  • Glycolysis, glutaminolysis, fatty acid synthesis/oxidation, and mitochondrial oxidative phosphorylation are crucial for immune cell function.
  • Metabolic reprogramming is essential for immune cell activation, proliferation, and differentiation.

Conclusions:

  • Immune cell function is critically dependent on metabolic programming.
  • Understanding immune cell metabolism provides insights into host defense mechanisms.
  • Metabolic pathways are key regulators of T cell and macrophage responses to pathogens.