O-GlcNAc: a novel regulator of immunometabolism

O-GlcNAc: a novel regulator of immunometabolism The rapidly expanding field of immunometabolism focuses on how metabolism controls the function of immune cells. CD4+ T cells are essential for the adaptive immune response leading to the eradication of specific pathogens. However, when T cells are inappropriately over-active, they can drive autoimmunity, allergic disease, and chronic inflammation. The mechanisms by which metabolic changes influence function in CD4+ T cells are not fully understood. The post-translational protein modification, O-GlcNAc (O-linked β-N-acetylglucosamine), dynamically cycles on and off of intracellular proteins as cells respond to their environment and flux through metabolic pathways changes. As the rate of O-GlcNAc cycling fluctuates, protein function, stability, and/or localization can be affected. Thus, O-GlcNAc is critically poised at the nexus of cellular metabolism and function. This review highlights the intra- and extracellular metabolic factors that influence CD4+ T cell activation and differentiation and how O-GlcNAc regulates these processes. We also propose areas of future research that may illuminate O-GlcNAc’s role in the plasticity and pathogenicity of CD4+ T cells and uncover new potential therapeutic targets. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Bioenergetics and Biomembranes Springer Journals

O-GlcNAc: a novel regulator of immunometabolism

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Publisher
Springer US
Copyright
Copyright © 2018 by Springer Science+Business Media, LLC, part of Springer Nature
Subject
Chemistry; Bioorganic Chemistry; Biochemistry, general; Animal Anatomy / Morphology / Histology; Animal Biochemistry; Organic Chemistry
ISSN
0145-479X
eISSN
1573-6881
D.O.I.
10.1007/s10863-018-9744-1
Publisher site
See Article on Publisher Site

Abstract

The rapidly expanding field of immunometabolism focuses on how metabolism controls the function of immune cells. CD4+ T cells are essential for the adaptive immune response leading to the eradication of specific pathogens. However, when T cells are inappropriately over-active, they can drive autoimmunity, allergic disease, and chronic inflammation. The mechanisms by which metabolic changes influence function in CD4+ T cells are not fully understood. The post-translational protein modification, O-GlcNAc (O-linked β-N-acetylglucosamine), dynamically cycles on and off of intracellular proteins as cells respond to their environment and flux through metabolic pathways changes. As the rate of O-GlcNAc cycling fluctuates, protein function, stability, and/or localization can be affected. Thus, O-GlcNAc is critically poised at the nexus of cellular metabolism and function. This review highlights the intra- and extracellular metabolic factors that influence CD4+ T cell activation and differentiation and how O-GlcNAc regulates these processes. We also propose areas of future research that may illuminate O-GlcNAc’s role in the plasticity and pathogenicity of CD4+ T cells and uncover new potential therapeutic targets.

Journal

Journal of Bioenergetics and BiomembranesSpringer Journals

Published: Feb 6, 2018

References

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