Evidence map›Paper›PMID 19666564›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2009

Allogeneic mesenchymal stem cells restore cardiac function in chronic ischemic cardiomyopathy via trilineage differentiating capacity.

Henry C Quevedo, Konstantinos E Hatzistergos, Behzad N Oskouei, Gary S Feigenbaum, Jose E Rodriguez, David Valdes, Pradip M Pattany, Juan P Zambrano, Qinghua Hu, Ian McNiece and 2 more

Open access · bronzeAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 284 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
284citing papers in PubMed, 3 pooled it
50.4field-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

284 citing papers in PubMed, 3 syntheses or guidelines pooled it, 574 citations in OpenAlex.

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  15. Mesenchymal Stem Cells in Cancer Therapy.Advances in experimental medicine and biology · 2025
    Review
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224 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

12 authors at 2 institutions in 2 countries.

Henry C QuevedoInterdisciplinary Stem Cell Institute and Department of Medicine, Cardiovascular Division, Miller School of Medicine, University of Miami, Miami, FL 33136, USA.
Konstantinos E Hatzistergos
Behzad N Oskouei
Gary S Feigenbaum
Jose E Rodriguez
David Valdes
Pradip M Pattany
Juan P Zambrano
Qinghua Hu
Ian McNiece
Alan W Heldman
Joshua M Hare
Stem Cell Institute · PAUniversity of Miami · US

Funding

Mesenchymal Stem Cell CardiomyoplastyU54HL081028 · NHLBI · JOHNS HOPKINS UNIVERSITY · PI HARE, JOSHUA M · 2005 to 2009
$12.1M
Cellular Cardiomyoplasty for Chronic Heart FailureR01HL084275 · NHLBI · UNIVERSITY OF MIAMI SCHOOL OF MEDICINE · PI HARE, JOSHUA M · 2007 to 2016
$3.8M
NHLBI NIH HHS R01 HL084275NHLBI NIH HHS R01-HL084275NHLBI NIH HHS U54 HL081028NHLBI NIH HHS U54-HL081028
6 · The paper itself

Abstract

The mechanism(s) underlying cardiac reparative effects of bone marrow-derived mesenchymal stem cells (MSC) remain highly controversial. Here we tested the hypothesis that MSCs regenerate chronically infarcted myocardium through mechanisms comprising long-term engraftment and trilineage differentiation. Twelve weeks after myocardial infarction, female swine received catheter-based transendocardial injections of either placebo (n = 4) or male allogeneic MSCs (200 million; n = 6). Animals underwent serial cardiac magnetic resonance imaging, and in vivo cell fate was determined by co-localization of Y-chromosome (Y(pos)) cells with markers of cardiac, vascular muscle, and endothelial lineages. MSCs engrafted in infarct and border zones and differentiated into cardiomyocytes as ascertained by co-localization with GATA-4, Nkx2.5, and alpha-sarcomeric actin. In addition, Y(pos) MSCs exhibited vascular smooth muscle and endothelial cell differentiation, contributing to large and small vessel formation. Infarct size was reduced from 19.3 +/- 1.7% to 13.9 +/- 2.0% (P < 0.001), and ejection fraction (EF) increased from 35.0 +/- 1.7% to 41.3 +/- 2.7% (P < 0.05) in MSC but not placebo pigs over 12 weeks. This was accompanied by increases in regional contractility and myocardial blood flow (MBF), particularly in the infarct border zone. Importantly, MSC engraftment correlated with functional recovery in contractility (R = 0.85, P < 0.05) and MBF (R = 0.76, P < 0.01). Together these findings demonstrate long-term MSC survival, engraftment, and trilineage differentiation following transplantation into chronically scarred myocardium. MSCs are an adult stem cell with the capacity for cardiomyogenesis and vasculogenesis which contribute, at least in part, to their ability to repair chronically scarred myocardium.

Indexed as

ActinsAnimalsBone Marrow CellsCardiomyopathiesCell DifferentiationCell SurvivalFemaleGATA4 Transcription FactorHomeobox Protein Nkx-2.5Homeodomain ProteinsIschemiaMaleMesenchymal Stem CellsPlacebosSwineSwine, MiniatureActinsGATA4 Transcription FactorHomeobox Protein Nkx-2.5Homeodomain ProteinsNkx2-5 protein, mousePlacebosTranscription Factors

Identifiers

PMID19666564
PMCPMC2729013
OpenAlexW2050974735

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.