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July 10, 2019The FASEB JournalOpen Access

Doxorubicin‐induced cardiomyocyte death is mediated by unchecked mitochondrial fission and mitophagy

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Why the study?

Doxorubicin cardiotoxicity is linked to mitochondrial damage, but whether unchecked mitochondrial fission and mitophagy compromise cardiomyocyte viability and cause cell death remained unverified.

Does DRP1 or parkin knockdown prevent doxorubicin-induced cardiomyocyte death in preclinical models?

Population

Dox-treated H9c2 cardiac myoblast cells and DRP1-deficient mice

Comparison

DRP1 knockdown or parkin modulation vs controls in Dox-treated models

Design

Preclinical in vitro and in vivo mechanistic study

Authors

MCMichael P. CatanzaroAWAshley A. WeinerAKAmanda Kaminaris

Discussion

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Overview

DRP1 and parkin modulation may mitigate doxorubicin cardiotoxicity in mice; hypothesis-generating for human cardioprotection.

Structured PICO

Does DRP1 or parkin knockdown prevent doxorubicin-induced cardiomyocyte death in preclinical models?

P
Population
H9c2 cardiac myoblast cells and DRP1-deficient mice
I
Intervention
Doxorubicin treatment with DRP1 knockdown or parkin knockdown/overexpression
C
Comparator
Doxorubicin treatment without knockdown/overexpression (wild-type/control)
O
Outcome
Cardiomyocyte death, mitochondrial fragmentation, and mitophagy fluxsurrogate

Doxorubicin-induced cardiomyocyte death is mediated by unchecked mitochondrial fission and mitophagy, identifying potential therapeutic targets for preventing doxorubicin cardiotoxicity.

Cite This Study

Catanzaro et al. (2019) studied this question.

synapsesocial.com/papers/6a7e09f3e37ea741e699aba4https://doi.org/10.1096/fj.201802663r
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Also Consider

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  5. 5Late Effects of Childhood Cancer: Life-threatening Issues2008 · 20 citations