Autophagy Contribution to Cancer Therapy Resistance

A special issue of Cells (ISSN 2073-4409). This special issue belongs to the section "Autophagy".

Deadline for manuscript submissions: closed (15 July 2024) | Viewed by 785

Special Issue Editors


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Guest Editor
Centre de Recherches en Cancérologie de Toulouse, Toulouse, France
Interests: autophagy; signaling; metabolism; acute myeloid leukemia
Special Issues, Collections and Topics in MDPI journals

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Guest Editor
Centre de Recherches en Cancérologie de Toulouse, Toulouse, France
Interests: host autophagy; metabolism; immune response; acute myeloid leukemia
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Unfortunately, for many types of cancer, therapy resistance is common and accounts for most cases of treatment failure. Therefore, the identification of new targets and resistance mechanisms is urgently needed to improve clinical outcomes. The well-conserved catabolic process, autophagy, has previously been implicated in the initiation, progression, and therapeutic resistance of numerous tumors. This survival mechanism, characterized by the lysosomal degradation of cytoplasmic content and damaged organelles, ensures energy and cellular homeostasis. In addition, especially through its role in metabolism regulation, tumor and microenvironmental autophagy have been increasingly associated with oncogenesis. However, studies to better understand its role and identify through which molecular and cellular mechanisms autophagy regulates response to therapy, especially in vivo, are still necessary.

This Special Issue will investigate, in vitro and in vivo, the contribution of autophagy to cancer resistance and relapse, depending on tumor type and the treatments used, in order to understand whether autophagy modulation could be an interesting strategy to improve therapy efficacy.

Dr. Carine Joffre
Dr. Laura Poillet
Guest Editors

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Keywords

  • autophagy
  • cancers
  • therapy resistance

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Published Papers (1 paper)

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26 pages, 4007 KiB  
Review
Selective Termination of Autophagy-Dependent Cancers
by Ajit Roy and Melvin L. DePamphilis
Cells 2024, 13(13), 1096; https://doi.org/10.3390/cells13131096 - 25 Jun 2024
Viewed by 554
Abstract
The goal of cancer research is to identify characteristics of cancer cells that allow them to be selectively eliminated without harming the host. One such characteristic is autophagy dependence. Cancer cells survive, proliferate, and metastasize under conditions where normal cells do not. Thus, [...] Read more.
The goal of cancer research is to identify characteristics of cancer cells that allow them to be selectively eliminated without harming the host. One such characteristic is autophagy dependence. Cancer cells survive, proliferate, and metastasize under conditions where normal cells do not. Thus, the requirement in cancer cells for more energy and macromolecular biosynthesis can evolve into a dependence on autophagy for recycling cellular components. Recent studies have revealed that autophagy, as well as different forms of cellular trafficking, is regulated by five phosphoinositides associated with eukaryotic cellular membranes and that the enzymes that synthesize them are prime targets for cancer therapy. For example, PIKFYVE inhibitors rapidly disrupt lysosome homeostasis and suppress proliferation in all cells. However, these inhibitors selectively terminate PIKFYVE-dependent cancer cells and cancer stem cells with not having adverse effect on normal cells. Here, we describe the biochemical distinctions between PIKFYVE-sensitive and -insensitive cells, categorize PIKFYVE inhibitors into four groups that differ in chemical structure, target specificity and efficacy on cancer cells and normal cells, identify the mechanisms by which they selectively terminate autophagy-dependent cancer cells, note their paradoxical effects in cancer immunotherapy, and describe their therapeutic applications against cancers. Full article
(This article belongs to the Special Issue Autophagy Contribution to Cancer Therapy Resistance)
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