The effects of metabolism on the immune microenvironment in colorectal cancer DOI Creative Commons

Xingzhao Chen,

Zhiyuan Ma, Zhiqiang Yi

et al.

Cell Death Discovery, Journal Year: 2024, Volume and Issue: 10(1)

Published: March 7, 2024

Abstract Colorectal cancer (CRC) is a malignancy that widely prevalent worldwide. Due to its unsatisfactory treatment outcome and extremely poor prognosis, many studies on the molecular mechanisms pathological of CRC have been published in recent years. The tumor microenvironment (TME) an important feature tumorigenesis one hallmarks development. Metabolic reprogramming currently hot topic research, this provided insights into In particular, metabolic causes changes composition energy nutrients TME. Furthermore, it can alter complex crosstalk between immune cells associated factors, such as macrophages T cells, which play roles TME, turn affecting escape tumors by altering surveillance. review, we summarize several metabolism-related processes tumors. Our results showed regulated influences development CRC.

Language: Английский

Inhibition of ACLY overcomes cancer immunotherapy resistance via polyunsaturated fatty acids peroxidation and cGAS-STING activation DOI Creative Commons
Wei Xiang, Hongwei Lv, Fuxue Xing

et al.

Science Advances, Journal Year: 2023, Volume and Issue: 9(49)

Published: Dec. 6, 2023

Adenosine 5'-triphosphate citrate lyase (ACLY) is a cytosolic enzyme that converts into acetyl-coenzyme A for fatty acid and cholesterol biosynthesis. ACLY up-regulated or activated in many cancers, targeting by inhibitors holds promise as potential cancer therapy. However, the role of immunity regulation remains poorly understood. Here, we show inhibition up-regulates PD-L1 immune checkpoint expression cells induces T cell dysfunction to drive immunosuppression compromise its antitumor effect immunocompetent mice. Mechanistically, causes polyunsaturated (PUFA) peroxidation mitochondrial damage, which triggers DNA leakage activate cGAS-STING innate pathway. Pharmacological genetic overcomes resistance anti-PD-L1 therapy cGAS-dependent manner. Furthermore, dietary PUFA supplementation mirrors enhanced efficacy blockade inhibition. These findings reveal an immunomodulatory provide combinatorial strategies overcome immunotherapy tumors.

Language: Английский

Citations

56

Macrophage-mediated myelin recycling fuels brain cancer malignancy DOI Creative Commons
Daan J. Kloosterman, Johanna Erbani,

Menno Boon

et al.

Cell, Journal Year: 2024, Volume and Issue: 187(19), P. 5336 - 5356.e30

Published: Aug. 12, 2024

Tumors growing in metabolically challenged environments, such as glioblastoma the brain, are particularly reliant on crosstalk with their tumor microenvironment (TME) to satisfy high energetic needs. To study intricacies of this metabolic interplay, we interrogated heterogeneity TME using single-cell and multi-omics analyses identified rewired tumor-associated macrophage (TAM) subpopulations pro-tumorigenic properties. These TAM subsets, termed lipid-laden macrophages (LLMs) reflect cholesterol accumulation, epigenetically rewired, display immunosuppressive features, enriched aggressive mesenchymal subtype. Engulfment cholesterol-rich myelin debris endows subsets TAMs acquire an LLM phenotype. Subsequently, LLMs directly transfer myelin-derived lipids cancer cells LXR/Abca1-dependent manner, thereby fueling heightened demands glioblastoma. Our work provides in-depth understanding immune-metabolic interplay during progression, laying a framework unveil targetable vulnerabilities

Language: Английский

Citations

40

Fatty acid metabolism of immune cells: a new target of tumour immunotherapy DOI Creative Commons
Sheng Zhang,

Kebing Lv,

Zhen Yu Liu

et al.

Cell Death Discovery, Journal Year: 2024, Volume and Issue: 10(1)

Published: Jan. 20, 2024

Language: Английский

Citations

39

Metabolic regulation of the immune system in health and diseases: mechanisms and interventions DOI Creative Commons
Tengyue Hu, Changhai Liu, Min Lei

et al.

Signal Transduction and Targeted Therapy, Journal Year: 2024, Volume and Issue: 9(1)

Published: Oct. 9, 2024

Metabolism, including glycolysis, oxidative phosphorylation, fatty acid oxidation, and other metabolic pathways, impacts the phenotypes functions of immune cells. The regulation system is important in pathogenesis progression numerous diseases, such as cancers, autoimmune diseases diseases. concept immunometabolism was introduced over a decade ago to elucidate intricate interplay between metabolism immunity. definition has expanded from chronic low-grade inflammation reprogramming cells various With being proposed developed, can be gradually summarized becomes more clearer. In context many cancer, disease, occurs inducing proinflammatory or anti-inflammatory effects. phenotypic functional changes caused by further affect development Based on experimental results, targeting cellular promising therapy. this review, we focus introduce their pathways reprogramming, summarize how these effects We thoroughly explore targets treatments based existing studies. challenges translating results into clinical applications field are also summarized. believe that better understanding health will improve management most

Language: Английский

Citations

32

The effects of metabolism on the immune microenvironment in colorectal cancer DOI Creative Commons

Xingzhao Chen,

Zhiyuan Ma, Zhiqiang Yi

et al.

Cell Death Discovery, Journal Year: 2024, Volume and Issue: 10(1)

Published: March 7, 2024

Abstract Colorectal cancer (CRC) is a malignancy that widely prevalent worldwide. Due to its unsatisfactory treatment outcome and extremely poor prognosis, many studies on the molecular mechanisms pathological of CRC have been published in recent years. The tumor microenvironment (TME) an important feature tumorigenesis one hallmarks development. Metabolic reprogramming currently hot topic research, this provided insights into In particular, metabolic causes changes composition energy nutrients TME. Furthermore, it can alter complex crosstalk between immune cells associated factors, such as macrophages T cells, which play roles TME, turn affecting escape tumors by altering surveillance. review, we summarize several metabolism-related processes tumors. Our results showed regulated influences development CRC.

Language: Английский

Citations

21