Evidence map›Paper›PMID 20110532›Full record

ArticleCirculation research2010

Relative roles of direct regeneration versus paracrine effects of human cardiosphere-derived cells transplanted into infarcted mice.

Isotta Chimenti, Rachel Ruckdeschel Smith, Tao-Sheng Li, Gary Gerstenblith, Elisa Messina, Alessandro Giacomello, Eduardo Marbán

Open access · bronzeAbstract read
In one paragraph

Article in Circulation research, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 354 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
354citing papers in PubMed, 1 pooled it
52.2field-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

354 citing papers in PubMed, 1 synthesis or guideline pooled it, 654 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Article
  4. Progress on cell therapy for skeletal muscle disorders.Advanced drug delivery reviews · 2026
    Review
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  6. Cytochrome P450-derived metabolites of docosahexaenoic acid or arachidonic acid enhance contractility of cultured rat cardiomyocytes: a pilot study.Journal of artificial organs : the official journal of the Japanese Society for Artificial Organs · 2026
    Article
  7. Article
  8. Article
  9. Review
  10. Article
  11. Article
  12. Review
  13. Article
  14. Review
  15. Review
  16. Heart-derived endogenous stem cells.Molecular biology reports · 2025
    Review
  17. Stem Cell Therapy in Ischemic Heart Failure.American journal of cardiovascular drugs : drugs, devices, and other interventions · 2025
    Review
  18. Article
  19. Article
  20. Review

294 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

7 authors at 2 institutions in 2 countries.

Isotta ChimentiCedars-Sinai Heart Institute, 8700 Beverly Blvd, Los Angeles, CA 90048, USA.
Rachel Ruckdeschel Smith
Tao-Sheng Li
Gary Gerstenblith
Elisa Messina
Alessandro Giacomello
Eduardo Marbán
Johns Hopkins University · USIstituto Pasteur · IT

Funding

Exosome-mediated cardioprotection and regenerationR01HL124074 · NHLBI · CEDARS-SINAI MEDICAL CENTER · PI MARBAN, EDUARDO · 2014 to 2021
$4.0M
Electrophysiology and Cell Biology of Cardiac Stem CellsR01HL083109 · NHLBI · JOHNS HOPKINS UNIVERSITY · PI MARBAN, EDUARDO · 2006 to 2014
$3.6M
NHLBI NIH HHS R01 HL083109NHLBI NIH HHS R01 HL124074
6 · The paper itself

Abstract

rationaleMultiple biological mechanisms contribute to the efficacy of cardiac cell therapy. Most prominent among these are direct heart muscle and blood vessel regeneration from transplanted cells, as opposed to paracrine enhancement of tissue preservation and/or recruitment of endogenous repair.

objectiveHuman cardiac progenitor cells, cultured as cardiospheres (CSps) or as CSp-derived cells (CDCs), have been shown to be capable of direct cardiac regeneration in vivo. Here we characterized paracrine effects in CDC transplantation and investigated their relative importance versus direct differentiation of surviving transplanted cells. METHODS AND

resultsIn vitro, many growth factors were found in media conditioned by human adult CSps and CDCs; CDC-conditioned media exerted antiapoptotic effects on neonatal rat ventricular myocytes, and proangiogenic effects on human umbilical vein endothelial cells. In vivo, human CDCs secreted vascular endothelial growth factor, hepatocyte growth factor, and insulin-like growth factor 1 when transplanted into the same SCID mouse model of acute myocardial infarction where they were previously shown to improve function and to produce tissue regeneration. Injection of CDCs in the peri-infarct zone increased the expression of Akt, decreased apoptotic rate and caspase 3 level, and increased capillary density, indicating overall higher tissue resilience. Based on the number of human-specific cells relative to overall increases in capillary density and myocardial viability, direct differentiation quantitatively accounted for 20% to 50% of the observed effects.

conclusionsTogether with their spontaneous commitment to cardiac and angiogenic differentiation, transplanted CDCs serve as "role models," recruiting endogenous regeneration and improving tissue resistance to ischemic stress. The contribution of the role model effect rivals or exceeds that of direct regeneration.

Indexed as

Paracrine CommunicationRegenerationStem Cell TransplantationAnimalsAnimals, NewbornApoptosisCaspase 3Cell DifferentiationCell LineageCell SurvivalCulture Media, ConditionedDisease Models, AnimalEndothelial CellsHepatocyte Growth FactorHumansInsulin-Like Growth Factor ICaspase 3Culture Media, ConditionedHepatocyte Growth FactorHGF protein, humanInsulin-Like Growth Factor IProto-Oncogene Proteins c-aktVascular Endothelial Growth Factor AVEGFA protein, human

Identifiers

PMID20110532
PMCPMC4317351
OpenAlexW2106111979

What OpenQuestion holds

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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.