Cited by 451Cell death mechanisms and regulationPARP inhibition in cancer therapyDNA Repair Mechanisms

Parthanatos, a messenger of death

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David, Karen Kate·2009·Frontiers in Bioscience

Abstract

Poly-ADP-ribose polymerase-1 (PARP-1)'s roles in the cell span from maintaining life to inducing death. The processes PARP-1 is involved in include DNA repair, DNA transcription, mitosis, and cell death. Of PARP-1's different cellular functions, its role in cell death is of particular interest to designing therapies for diseases. Genetic deletion of PARP-1 revealed that PARP-1 overactivation underlies cell death in models of stroke, diabetes, inflammation and neurodegeneration. Since interfering with PARP-1 mediated cell death will be clinically beneficial, great effort has been invested into understanding mechanisms downstream of PARP-1 overactivation. Recent evidence shows that poly-ADP ribose (PAR) polymer itself can act as a cell death effector downstream of PARP-1. We coined the term parthanatos after Thanatos, the personification of death in Greek mythology, to refer to PAR-mediated cell death. In this review, we will present evidence and questions raised by these recent findings, and summarize the proposed mechanisms by which PARP-1 overactivation kills. It is evident that further understanding of parthanatos opens up new avenues for therapy in ameliorating diseases related to PARP-1 overactivation.

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  • Parthanatos occurs not only as a consequence of severe/prolonged alkylating DNA damage, but also in response to oxidative stress, hypoxia, hypoglycemia, or inflammatory cues.

    “parthanatos appears to occur not only as a consequence of severe/prolonged alkylating DNA damage, but also in response to oxidative stress, hypoxia, hypoglycemia, or inflammatory cues [656–658].”

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Authors
David, K. K.
Affiliations
Johns Hopkins University (US)
Corresponding author
David, Karen Kate
Venue
Frontiers in Bioscience
Publisher
IMR Press
Published
2009
Volume
Volume
Issue
14
Pages
1116
ISSN
  • 1093-4715 (ISSN-L)
  • 1093-9946
OpenAlex
W2033004300
Cited by
450
References
96
Citations by year
2026: 25 · 2025: 32 · 2024: 44 · 2023: 35 · 2022: 38 · 2021: 44 · 2020: 30 · 2019: 30 · 2018: 17 · 2017: 23 · 2016: 16 · 2015: 20 · 2014: 20 · 2013: 22 · 2012: 22
FWCI
1.38
Type
journal article
Language
en
Open access
Locations
  • Frontiers in bioscience (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • National Institutes of Health
  • National Institute on Aging (R36AG031572)
  • National Institute of Neurological Disorders and Stroke (P50NS038377)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Cell death mechanisms and regulation
  • Health Sciences › Medicine › Oncology › PARP inhibition in cancer therapy
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › DNA Repair Mechanisms
Keywords
parthanatos, PARP1, poly(ADP-ribose), cell death, DNA repair, stroke, diabetes mellitus, neurodegeneration, inflammation, therapeutic target
MeSH terms
Poly (ADP-Ribose) Polymerase-1, Animals, Humans, Poly(ADP-ribose) Polymerases, Cell Death

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