Emerging mechanisms of obesity-associated immune dysfunction

© 2023. Springer Nature Limited..

Obesity is associated with a wide range of complications, including type 2 diabetes mellitus, cardiovascular disease, hypertension and nonalcoholic fatty liver disease. Obesity also increases the incidence and progression of cancers, autoimmunity and infections, as well as lowering vaccine responsiveness. A unifying concept across these differing diseases is dysregulated immunity, particularly inflammation, in response to metabolic overload. Herein, we review emerging mechanisms by which obesity drives inflammation and autoimmunity, as well as impairing tumour immunosurveillance and the response to infections. Among these mechanisms are obesity-associated changes in the hormones that regulate immune cell metabolism and function and drive inflammation. The cargo of extracellular vesicles derived from adipose tissue, which controls cytokine secretion from immune cells, is also dysregulated in obesity, in addition to impairments in fatty acid metabolism related to inflammation. Furthermore, an imbalance exists in obesity in the biosynthesis and levels of polyunsaturated fatty acid-derived oxylipins, which control a range of outcomes related to inflammation, such as immune cell chemotaxis and cytokine production. Finally, there is a need to investigate how obesity influences immunity using innovative model systems that account for the heterogeneous nature of obesity in the human population.

Medienart:

E-Artikel

Erscheinungsjahr:

2024

Erschienen:

2024

Enthalten in:

Zur Gesamtaufnahme - volume:20

Enthalten in:

Nature reviews. Endocrinology - 20(2024), 3 vom: 15. Feb., Seite 136-148

Sprache:

Englisch

Beteiligte Personen:

Shaikh, Saame Raza [VerfasserIn]
Beck, Melinda A [VerfasserIn]
Alwarawrah, Yazan [VerfasserIn]
MacIver, Nancie J [VerfasserIn]

Links:

Volltext

Themen:

Cytokines
Journal Article
Review

Anmerkungen:

Date Completed 19.02.2024

Date Revised 19.02.2024

published: Print-Electronic

Citation Status MEDLINE

doi:

10.1038/s41574-023-00932-2

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM366203568