Cited by 166Autophagy in Disease and TherapyTelomeres, Telomerase, and SenescenceGenetics, Aging, and Longevity in Model Organisms

Autophagy and senescence: A partnership in search of definition

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Gewirtz, David A.·2013·Autophagy

Abstract

Autophagy and senescence share a number of characteristics, which suggests that both responses could serve to collaterally protect the cell from the toxicity of external stress such as radiation and chemotherapy and internal forms of stress such as telomere shortening and oncogene activation. Studies of oncogene activation in normal fibroblasts as well as exposure of tumor cells to chemotherapy have indicated that autophagy and senescence are closely related but not necessarily interdependent responses; specifically, interference with autophagy delays but does not abrogate senescence. The literature relating to this topic is inconclusive, with some reports appearing to be consistent with a direct relationship between autophagy and senescence and others indicative of an inverse relationship. Before this question can be resolved, additional studies will be necessary where autophagy is clearly inhibited by genetic silencing and where the temporal responses of both autophagy and senescence are monitored, preferably in cells that are intrinsically incapable of apoptosis or where apoptosis is suppressed. Understanding the nature of this relationship may provide needed insights relating to cytoprotective as well as potential cytotoxic functions of both autophagy and senescence.

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Authors
Gewirtz, D. A.
Affiliations
Virginia Commonwealth University (US)
Corresponding author
Gewirtz, David A.
Venue
Autophagy
Published
2013-05-06
Volume
9
Issue
5
Pages
808-812
ISSN
  • 1554-8627 (ISSN-L)
  • 1554-8635
OpenAlex
W2021163182
Cited by
166
References
32
Citations by year
2026: 3 · 2025: 5 · 2024: 10 · 2023: 12 · 2022: 17 · 2021: 23 · 2020: 15 · 2019: 14 · 2018: 18 · 2017: 14 · 2016: 16 · 2015: 11 · 2014: 7 · 2013: 1
FWCI
8.50
Type
journal article
Language
en
Open access
Locations
  • Autophagy (publishedVersion)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Medicine › Epidemiology › Autophagy in Disease and Therapy
  • Health Sciences › Medicine › Physiology › Telomeres, Telomerase, and Senescence
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Aging › Genetics, Aging, and Longevity in Model Organisms
Keywords
cellular senescence, oncogene activation, telomere shortening, chemoresistance, radioresistance (biology), cytoprotection, apoptosis, cancer cells, fibroblasts, stress response
MeSH terms
Animals, Autophagy, Fibroblasts, Humans, Neoplasms, Signal Transduction, Cellular Senescence, Apoptosis, Reactive Oxygen Species, Cytoprotection, Endothelial Cells, Cell Line, Tumor, Mice

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