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The Role of Cell Metabolism in Innate Immune Memory

Authors
  • Ferreira, Anaisa Valido
  • Domiguéz-Andrés, Jorge
  • Netea, Mihai Gheorghe
Type
Published Article
Journal
Journal of Innate Immunity
Publisher
S. Karger AG
Publication Date
Dec 30, 2020
Volume
14
Issue
1
Pages
42–50
Identifiers
DOI: 10.1159/000512280
PMID: 33378755
Source
Karger
Keywords
Disciplines
  • Review Article
License
Green
External links

Abstract

Immunological memory is classically attributed to adaptive immune responses, but recent studies have shown that challenged innate immune cells can display long-term functional changes that increase nonspecific responsiveness to subsequent infections. This phenomenon, coined trained immunity or innate immune memory, is based on the epigenetic reprogramming and the rewiring of intracellular metabolic pathways. Here, we review the different metabolic pathways that are modulated in trained immunity. Glycolysis, oxidative phosphorylation, the tricarboxylic acid cycle, amino acid, and lipid metabolism are interplaying pathways that are crucial for the establishment of innate immune memory. Unraveling this metabolic wiring allows for a better understanding of innate immune contribution to health and disease. These insights may open avenues for the development of future therapies that aim to harness or dampen the power of the innate immune response.

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