Evidence map›Paper›PMID 32075913›Full record

ArticleThe Journal of biological chemistry2020

Doxorubicin induces cardiomyocyte apoptosis and atrophy through cyclin-dependent kinase 2-mediated activation of forkhead box O1.

Peng Xia, Jingrui Chen, Yuening Liu, Maya Fletcher, Brian C Jensen, Zhaokang Cheng

Open access · hybridAbstract read
In one paragraph

Article in The Journal of biological chemistry, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 51 papers.

0numbers the graph read from it
0cells of the map it votes in
51citing papers in PubMed
6.6field-weighted citation impact, top 2% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

51 citing papers in PubMed, 82 citations in OpenAlex.

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  15. Cardiomyopathies and a brief insight into DOX-induced cardiomyopathy.The Egyptian heart journal : (EHJ) : official bulletin of the Egyptian Society of Cardiology · 2025
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors at 3 institutions in 1 country.

Peng XiaDepartment of Pharmaceutical Sciences, Washington State University, Spokane, Washington 99202-2131.
Jingrui ChenDepartment of Pharmaceutical Sciences, Washington State University, Spokane, Washington 99202-2131.
Yuening LiuDepartment of Pharmaceutical Sciences, Washington State University, Spokane, Washington 99202-2131.
Maya FletcherDepartment of Biology, Gonzaga University, Spokane, Washington 99258.
Brian C JensenDivision of Cardiology, University of North Carolina School of Medicine, Chapel Hill, North Carolina 27599-7075.
Zhaokang ChengDepartment of Pharmaceutical Sciences, Washington State University, Spokane, Washington 99202-2131. Electronic address: zhaokang.cheng@wsu.edu.
Washington State University Spokane · USGonzaga University · USUniversity of North Carolina at Chapel Hill · US

Funding

Metabolic mechanisms of cardioprotection through alpha-1A adrenergic receptor activationR01HL140067 · NHLBI · UNIV OF NORTH CAROLINA CHAPEL HILL · PI Brian C Jensen · 2018 to 2026
$4.2M
Promoting chemoresistance in the heartR00HL119605 · NHLBI · WASHINGTON STATE UNIVERSITY · PI CHENG, ZHAOKANG · 2016 to 2018
$747k
Mechanisms of cardiac chemosensitivityR56HL145034 · NHLBI · WASHINGTON STATE UNIVERSITY · PI CHENG, ZHAOKANG · 2019 to 2019
$449k
NHLBI NIH HHS R00 HL119605NHLBI NIH HHS R01 HL140067NHLBI NIH HHS R56 HL145034
6 · The paper itself

Abstract

Recent clinical investigations indicate that anthracycline-based chemotherapies induce early decline in heart mass in cancer patients. Heart mass decline may be caused by a decrease in cardiac cell number because of increased cell death or by a reduction in cell size because of atrophy. We previously reported that an anthracycline, doxorubicin (DOX), induces apoptotic death of cardiomyocytes by activating cyclin-dependent kinase 2 (CDK2). However, the signaling pathway downstream of CDK2 remains to be characterized, and it is also unclear whether the same pathway mediates cardiac atrophy. Here we demonstrate that DOX exposure induces CDK2-dependent phosphorylation of the transcription factor forkhead box O1 (FOXO1) at Ser-249, leading to transcription of its proapoptotic target gene, Bcl-2-interacting mediator of cell death (Bim). In cultured cardiomyocytes, treatment with the FOXO1 inhibitor AS1842856 or transfection with FOXO1-specific siRNAs protected against DOX-induced apoptosis and mitochondrial damage. Oral administration of AS1842856 in mice abrogated apoptosis and prevented DOX-induced cardiac dysfunction. Intriguingly, pharmacological FOXO1 inhibition also attenuated DOX-induced cardiac atrophy, likely because of repression of muscle RING finger 1 (MuRF1), a proatrophic FOXO1 target gene. In conclusion, DOX exposure induces CDK2-dependent FOXO1 activation, resulting in cardiomyocyte apoptosis and atrophy. Our results identify FOXO1 as a promising drug target for managing DOX-induced cardiotoxicity. We propose that FOXO1 inhibitors may have potential as cardioprotective therapeutic agents during cancer chemotherapy.

Indexed as

AnimalsApoptosisAtrophyCardiotoxicityCyclin-Dependent Kinase 2Disease Models, AnimalDoxorubicinForkhead Box Protein O1Gene Expression RegulationHeartHumansMiceMuscle ProteinsMyocytes, CardiacNeoplasmsQuinolones5-amino-7-(cyclohexylamino)-1-ethyl-6-fluoro-4-oxo-1,4-dihydroquinoline-3-carboxylic acidCDK2 protein, humanCyclin-Dependent Kinase 2DoxorubicinForkhead Box Protein O1FOXO1 protein, humanMuscle ProteinsQuinolonesTRIM63 protein, humanTripartite Motif ProteinsUbiquitin-Protein LigasesAdriamycinanticancer drugcardiac musclecardiomyopathycardiovascular diseasecell cycleheart failure

Identifiers

PMID32075913
PMCPMC7105316
OpenAlexW3007539695

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.