Cited by 305Autophagy in Disease and TherapyPhotodynamic Therapy Research StudiesCell death mechanisms and regulation

ROS-induced autophagy in cancer cells assists in evasion from determinants of immunogenic cell death

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Garg, Abhishek D., Dudek, Aleksandra M., Ferreira, Gabriela B., Verfaillie, Tom, Vandenabeele, Peter, Krysko, Dmitri V., Mathieu, Chantal, Agostinis, Patrizia·2013·Autophagy

Abstract

Calreticulin surface exposure (ecto-CALR), ATP secretion, maturation of dendritic cells (DCs) and stimulation of T cells are prerequisites for anticancer therapy-induced immunogenic cell death (ICD). Recent evidence suggests that chemotherapy-induced autophagy may positively regulate ICD by favoring ATP secretion. We have recently shown that reactive oxygen species (ROS)-based endoplasmic reticulum (ER) stress triggered by hypericin-mediated photodynamic therapy (Hyp-PDT) induces bona fide ICD. However, whether Hyp-PDT-induced autophagy regulates ICD was not explored. Here we showed that, in contrast to expectations, reducing autophagy (by ATG5 knockdown) in cancer cells did not alter ATP secretion after Hyp-PDT. Autophagy-attenuated cancer cells displayed enhanced ecto-CALR induction following Hyp-PDT, which strongly correlated with their inability to clear oxidatively damaged proteins. Furthermore, autophagy-attenuation in Hyp-PDT-treated cancer cells increased their ability to induce DC maturation, IL6 production and proliferation of CD4(+) or CD8(+) T cells, which was accompanied by IFNG production. Thus, our study unravels a role for ROS-induced autophagy in weakening functional interaction between dying cancer cells and the immune system thereby helping in evasion from ICD prerequisites or determinants.

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  • Pre-mortem autophagy is required for optimal ATP release during ICD and for immunogenicity of cell death induced by several but not all ICD inducers.

    “Accordingly, pre-mortem autophagy is required for optimal ATP release in the course of ICD, and hence for cell death induced by several (but not all) ICD inducers to be perceived as immunogenic [867, 900, 901].”

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Research works printed but not linked: 2

  1. Kühn H, Borchert A. Regulation of enzymatic lipid peroxidation: the interplay of peroxidizing and peroxide reducing enzymes. Free Radic Biol Med 2002; 33:154-72; PMID:12106812
  2. Kharbanda S, Garg AD. F1000 Recommendation of [Venereau E et al., J Exp Med 2012, 209:1519-28]. Faculty of 1000 2012; f1000. com/717953753#eval793459358

Cited by

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Authors
Garg, A. D., Dudek, A. M., Ferreira, G. B., Verfaillie, T., Vandenabeele, P., Krysko, D. V., Mathieu, C., & Agostinis, P.
Affiliations
  • KU Leuven (BE)
  • Ghent University (BE)
Corresponding author
Agostinis, Patrizia
Venue
Autophagy
Published
2013-09-29
Volume
9
Issue
9
Pages
1292-1307
ISSN
  • 1554-8627 (ISSN-L)
  • 1554-8635
OpenAlex
W2091209638
Cited by
305
References
62
Citations by year
2026: 12 · 2025: 14 · 2024: 21 · 2023: 35 · 2022: 32 · 2021: 25 · 2020: 27 · 2019: 28 · 2018: 19 · 2017: 10 · 2016: 32 · 2015: 20 · 2014: 22 · 2013: 8
FWCI
19.80
Type
journal article
Language
en
Open access
Locations
  • Autophagy (publishedVersion)
  • PubMed (publishedVersion)
  • Lirias (KU Leuven) (submittedVersion, other-oa)
  • Ghent University Academic Bibliography (Ghent University) (submittedVersion)
  • Radboud Repository (Radboud University) (submittedVersion)
Funders
  • Fonds Wetenschappelijk Onderzoek (G.0661.09, G.0728.10)
  • KU Leuven (GOA/11/009)
  • Universiteit Gent
  • Servier
  • Vlaamse regering
Topics
  • Health Sciences › Medicine › Epidemiology › Autophagy in Disease and Therapy
  • Health Sciences › Medicine › Pulmonary and Respiratory Medicine › Photodynamic Therapy Research Studies
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Cell death mechanisms and regulation
Keywords
immunogenic cell death, reactive oxygen species, endoplasmic reticulum stress, hypericin, photodynamic therapy, calreticulin exposure, ATP release, dendritic cell maturation, T cell proliferation, ATG5, tumor immunosuppression
MeSH terms
Autophagy-Related Protein 5, Adenosine Triphosphate, Anthracenes, Autophagy, Dendritic Cells, Glutathione Peroxidase, Histidine, Humans, Interferon-gamma, Microtubule-Associated Proteins, Models, Biological, Neoplasms, Oxidation-Reduction, Perylene, Phenotype, Photochemotherapy, CD4-Positive T-Lymphocytes, Interleukin-6, Reactive Oxygen Species, CD8-Positive T-Lymphocytes, Calreticulin, Cell Line, Tumor, Cell Proliferation, Gene Knockdown Techniques

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