Obesity Shapes Metabolism in the Tumor Microenvironment to Suppress Anti-Tumor Immunity

Fecha de publicación: Fecha Ahead of Print:

Autores de IIS La Fe

Participantes ajenos a IIS La Fe

  • Ringel, AE
  • Drijvers, JM
  • Baker, GJ
  • Catozzi, A
  • Gassaway, BM
  • Miller, BC
  • Juneja, VR
  • Nguyen, TH
  • Joshi, S
  • Yao, CH
  • Yoon, H
  • Sage, PT
  • LaFleur, MW
  • Trombley, JD
  • Jacobson, CA
  • Maliga, Z
  • Gygi, SP
  • Sorger, PK
  • Rabinowitz, JD
  • Sharpe, AH
  • Haigis, MC

Grupos

Abstract

Obesity is a major cancer risk factor, but how differences in systemic metabolism change the tumor microenvironment (TME) and impact anti-tumor immunity is not understood. Here, we demonstrate that high-fat diet (HFD)-induced obesity impairs CD8(+) T cell function in the murine TME, accelerating tumor growth. We generate a single-cell resolution atlas of cellular metabolism in the TME, detailing how it changes with diet-induced obesity. We find that tumor and CD8(+) T cells display distinct metabolic adaptations to obesity. Tumor cells increase fat uptake with HFD, whereas tumor-infiltrating CD8(+) T cells do not. These differential adaptations lead to altered fatty acid partitioning in HFD tumors, impairing CD8(+) T cell infiltration and function. Blocking metabolic reprogramming by tumor cells in obese mice improves anti-tumor immunity. Analysis of human cancers reveals similar transcriptional changes in CD8(+) T cell markers, suggesting interventions that exploit metabolism to improve cancer immunotherapy.

Datos de la publicación

ISSN/ISSNe:
0092-8674, 1097-4172

Cell  CELL PRESS

Tipo:
Article
Páginas:
1848-1848
Factor de Impacto:
26,304 SCImago
Cuartil:
Q1 SCImago

Citas Recibidas en Web of Science: 261

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Keywords

  • CD8+ T cells, anti-tumor immunity, colorectal cancer, fat oxidation, metabolism, obesity, tumor microenvironment

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