The Multifaceted Effects of Autophagy on the Tumor Microenvironment

Research output: Chapter in Book/Report/Conference proceedingChapter

2 Scopus citations

Abstract

The tumor microenvironment is composed of cancer cells, noncancer cells (e.g., immune cells, stromal cells, endothelial cells, and adipocytes), and various mediators (e.g., cytokines, chemokines, growth factors, and humoral factors) that work together to support cancer growth, progression, and resistance to therapies. Autophagy is an evolutionarily conserved degradation mechanism by which various cytosolic cargos (e.g., damaged organelles, unused molecules, or invaded pathogens) are engulfed by double-membrane autophagosomes, and then delivered into the lysosome for degradation and recycling. The level of autophagy is a crucial threshold to either promote cell survival or induce cell death in response to environmental stresses. Autophagy plays a context-dependent role in tumorigenesis and anticancer therapy via shaping the inflammatory, hypoxic, immunosuppressive, and metabolic tumor microenvironment. In particular, impaired autophagy flux is associated with chronic inflammation, immunosuppression, stromal formation, cancer stemness, angiogenesis, metastasis, and metabolic reprogramming in the tumor microenvironment. Understanding the molecular machinery of autophagy and its communication with hallmarks of cancer could lead to potential new anticancer strategies or drugs.

Original languageEnglish (US)
Title of host publicationAdvances in Experimental Medicine and Biology
PublisherSpringer
Pages99-114
Number of pages16
DOIs
StatePublished - Jan 1 2020

Publication series

NameAdvances in Experimental Medicine and Biology
Volume1225
ISSN (Print)0065-2598
ISSN (Electronic)2214-8019

Keywords

  • Angiogenesis
  • Autophagy
  • Cancer stem cells
  • Cell death
  • Cytokine
  • Ferroptosis
  • Fibroblast
  • Fibroblast
  • Hypoxia
  • Immune cells
  • Immunosuppression
  • Inflammation
  • Metabolic reprogramming
  • Metastasis
  • Tumor microenvironment

ASJC Scopus subject areas

  • Biochemistry, Genetics and Molecular Biology(all)

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  • Cite this

    Kang, R., Zeh, H., Lotze, M., & Tang, D. (2020). The Multifaceted Effects of Autophagy on the Tumor Microenvironment. In Advances in Experimental Medicine and Biology (pp. 99-114). (Advances in Experimental Medicine and Biology; Vol. 1225). Springer. https://doi.org/10.1007/978-3-030-35727-6_7