Evidence map›Paper›PMID 34604804›Full record

ArticleJACC. CardioOncology2021

Mitochondria-Rich Extracellular Vesicles Rescue Patient-Specific Cardiomyocytes From Doxorubicin Injury: Insights Into the SENECA Trial.

Connor G O'Brien, Mehmet Ozgun Ozen, Gentaro Ikeda, Evgeniya Vaskova, Ji Hye Jung, Nathan Bayardo, Michelle Rai Santoso, Liye Shi, Christine Wahlquist, Zewen Jiang and 10 more

Open access · goldAbstract read
In one paragraph

Article in JACC. CardioOncology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 62 papers.

0numbers the graph read from it
0cells of the map it votes in
62citing papers in PubMed
9.6field-weighted citation impact, top 1% 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

62 citing papers in PubMed, 87 citations in OpenAlex.

  1. Sequential-RSC pharmaceutics · 2026
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  11. Therapeutic and diagnostic potential of extracellular vesicle (EV)-mediated intercellular transfer of mitochondria and mitochondrial components.Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2026
    Review
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2 more citing papers are in PubMed but not listed here.

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

20 authors at 4 institutions in 2 countries.

Connor G O'BrienDepartment of Medicine, Division of Cardiology, University California San Francisco School of Medicine, San Francisco, California, USA.
Mehmet Ozgun OzenStanford Cardiovascular Institute, Stanford University School of Medicine, Stanford, California, USA.
Gentaro IkedaStanford Cardiovascular Institute, Stanford University School of Medicine, Stanford, California, USA.
Evgeniya VaskovaStanford Cardiovascular Institute, Stanford University School of Medicine, Stanford, California, USA.
Ji Hye JungStanford Cardiovascular Institute, Stanford University School of Medicine, Stanford, California, USA.
Nathan BayardoStanford Cardiovascular Institute, Stanford University School of Medicine, Stanford, California, USA.
Michelle Rai SantosoStanford Cardiovascular Institute, Stanford University School of Medicine, Stanford, California, USA.
Liye ShiDepartment of Geriatric Cardiovascular Medicine, First Hospital of China Medical University, Shenyang, Liaoning, China.
Christine WahlquistStanford Cardiovascular Institute, Stanford University School of Medicine, Stanford, California, USA.
Zewen JiangDepartment of Pathology, Stanford University School of Medicine, Stanford, California, USA.
Yunshin JungDepartment of Pathology, Stanford University School of Medicine, Stanford, California, USA.
Yitian ZengDepartment of Materials Science and Engineering, Stanford University, Stanford, California, USA.
Elizabeth EganDepartment of Pediatrics (Infectious Diseases), Stanford University School of Medicine, Stanford, California, USA.
Robert SinclairDepartment of Materials Science and Engineering, Stanford University, Stanford, California, USA.
Adrian GeeCenter for Cell and Gene Therapy, Baylor College of Medicine, Texas Children's Hospital, Houston, Texas, USA.
Ronald WittelesDepartment of Medicine, Division of Cardiovascular Medicine, Stanford University School of Medicine, Stanford, California, USA.
Mark MercolaStanford Cardiovascular Institute, Stanford University School of Medicine, Stanford, California, USA.
Katrin J SvenssonDepartment of Pathology, Stanford University School of Medicine, Stanford, California, USA.
Utkan DemirciStanford Cardiovascular Institute, Stanford University School of Medicine, Stanford, California, USA.
Phillip C YangStanford Cardiovascular Institute, Stanford University School of Medicine, Stanford, California, USA.
Stanford University · USCardiovascular Institute of the South · USFirst Hospital of China Medical University · CNTexas Children's Hospital · US

Funding

Stanford Islet Research CoreP30DK116074 · NIDDK · STANFORD UNIVERSITY · PI Seung K Kim · 2017 to 2026
$19.5M
Mechanisms controlling fructose uptake and utilizationR01DK125260 · NIDDK · STANFORD UNIVERSITY · PI Katrin Jennifer Svensson · 2020 to 2026
$3.5M
The role of circulating Slit2 in adipose thermogenesis and diabetesR00DK111916 · NIDDK · STANFORD UNIVERSITY · PI SVENSSON, KATRIN JENNIFER · 2018 to 2020
$731k
Using Exosomes to Preserve Viability and Function in Anthracycline Induced Cardiomyopathy Patient Specific Cardiomyocytes After Exposure to DoxorubicinF32HL139046 · NHLBI · STANFORD UNIVERSITY · PI O'BRIEN, CONNOR · 2017 to 2018
$126k
NHLBI NIH HHS F32 HL139046NIDDK NIH HHS P30 DK116074NIDDK NIH HHS R00 DK111916NIDDK NIH HHS R01 DK125260
6 · The paper itself

Abstract

backgroundAnthracycline-induced cardiomyopathy (AIC) is a significant source of morbidity and mortality in cancer survivors. The role of mesenchymal stem cells (MSCs) in treating AIC was evaluated in the SENECA trial, a Phase 1 National Heart, Lung, and Blood Institute-sponsored study, but the mechanisms underpinning efficacy in human tissue need clarification.

objectivesThe purpose of this study was to perform an in vitro clinical trial evaluating the efficacy and putative mechanisms of SENECA trial-specific MSCs in treating doxorubicin (DOX) injury, using patient-specific induced pluripotent stem cell-derived cardiomyocytes (iCMs) generated from SENECA patients.

methodsPatient-specific iCMs were injured with 1 μmol/L DOX for 24 hours, treated with extracellular vesicles (EVs) from MSCs by either coculture or direct incubation and then assessed for viability and markers of improved cellular physiology. MSC-derived EVs were separated into large extracellular vesicles (L-EVs) (>200 nm) and small EVs (<220nm) using a novel filtration system.

resultsiCMs cocultured with MSCs in a transwell system demonstrated improved iCM viability and attenuated apoptosis. L-EVs but not small EVs recapitulated this therapeutic effect. L-EVs were found to be enriched in mitochondria, which were shown to be taken up by iCMs. iCMs treated with L-EVs demonstrated improved contractility, reactive oxygen species production, ATP production, and mitochondrial biogenesis. Inhibiting L-EV mitochondrial function with 1-methyl-4-phenylpyridinium attenuated efficacy.

conclusionsL-EV-mediated mitochondrial transfer mitigates DOX injury in patient-specific iCMs. Although SENECA was not designed to test MSC efficacy, consistent tendencies toward a positive effect were observed across endpoints. Our results suggest a mechanism by which MSCs may improve cardiovascular performance in AIC independent of regeneration, which could inform future trial design evaluating the therapeutic potential of MSCs.

Indexed as

AIC, anthracycline induced cardiomyopathyanthracyclinecardiomyopathyDOX, doxorubicinDZR, dexrazoxaneEV, extracellular vesicleheart failureiCM, induced cardiomyocyteL-EV, large extracellular vesicleMPP+, 1-methyl-4-phenylpyrindiniumMSC-EV, mesenchymal stem cell derived extracellular vesicleMSC, mesenchymal stem cellMTDR, MitoTracker Deep RedMTG, MitoTracker GreenRBC, red blood cellROS, reactive oxygen speciesS-EV, small extracellular vesicle

Identifiers

PMID34604804
PMCPMC8463733
OpenAlexW3183347573

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.