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Macrophage Immunometabolism: Where Are We (Going)?
Jan Van den Bossche1, Luke A O'Neill2, Deepthi Menon2
1Department of Medical Biochemistry, Experimental Vascular Biology, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands.
Trends in Immunology
|April 12, 2017
Summary
Macrophage activation involves complex metabolic reprogramming. Both glucose metabolism and fatty acid oxidation (FAO) play multifaceted roles, challenging oversimplified views of their functions in inflammation.
Area of Science:
- Immunology
- Cellular Metabolism
Background:
- Metabolic reprogramming is crucial for macrophage activation.
- Glucose metabolism is essential for both inflammatory and anti-inflammatory macrophages.
- Fatty acid oxidation (FAO) supports anti-inflammatory responses and drives inflammasome activation in inflammatory macrophages.
Purpose of the Study:
- To review the role of metabolic reprogramming in macrophage activation.
- To address contradictory observations in the field of immunometabolism.
- To highlight current challenges and future research directions.
Main Methods:
- Literature review of immunometabolism research.
- Analysis of metabolic pathways in macrophage activation.
- Synthesis of existing findings on glucose metabolism and FAO.
Main Results:
- Metabolic pathways are interconnected and crucial for macrophage function.
- The roles of glycolysis and FAO are more complex than previously thought.
- Contradictory findings highlight the complexity of immunometabolism.
Conclusions:
- Oversimplifying glycolysis as proinflammatory and FAO as anti-inflammatory is inaccurate.
- The field of immunometabolism has advanced understanding but also revealed complexities.
- Future research should focus on resolving contradictions and exploring intricate metabolic roles.