Cited by 1,343Congenital heart defects researchNeurogenesis and neuroplasticity mechanismsMesenchymal stem cell research

Mammalian heart renewal by pre-existing cardiomyocytes

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Senyo, Samuel E., Steinhauser, Matthew L., Pizzimenti, Christie L., Yang, Vicky K., Cai, Lei, Wang, Mei, Wu, Ting-Di, Guerquin-Kern, Jean-Luc +2 more·2013·Nature

Abstract

Although recent studies have revealed that heart cells are generated in adult mammals, the frequency of generation and the source of new heart cells are not yet known. Some studies suggest a high rate of stem cell activity with differentiation of progenitors to cardiomyocytes. Other studies suggest that new cardiomyocytes are born at a very low rate, and that they may be derived from the division of pre-existing cardiomyocytes. Here we show, by combining two different pulse-chase approaches--genetic fate-mapping with stable isotope labelling, and multi-isotope imaging mass spectrometry--that the genesis of cardiomyocytes occurs at a low rate by the division of pre-existing cardiomyocytes during normal ageing, a process that increases adjacent to areas of myocardial injury. We found that cell cycle activity during normal ageing and after injury led to polyploidy and multinucleation, but also to new diploid, mononucleate cardiomyocytes. These data reveal pre-existing cardiomyocytes as the dominant source of cardiomyocyte replacement in normal mammalian myocardial homeostasis as well as after myocardial injury.

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  • There is emerging evidence for a cardiac stem cell population that may engage in limited regeneration in addition to low-rate renewal of preexisting cardiomyocytes.

    “There is emerging evidence supporting the existence of a cardiac stem cell population that may engage in some limited regeneration processes (32) in addition to a low rate renewal of preexisting cardiomyocytes (119).”

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Authors
Senyo, S. E., Steinhauser, M. L., Pizzimenti, C. L., Yang, V. K., Cai, L., Wang, M., Wu, T.-D., Guerquin-Kern, J.-L., Lechene, C. P., & Lee, R. T.
Affiliations
  • Brigham and Women's Hospital (US)
  • Inserm (FR)
Corresponding author
Lee, Richard T.
Venue
Nature
Published
2012-12-05
Volume
493
Issue
7432
Pages
433-436
ISSN
  • 0028-0836 (ISSN-L)
  • 1476-4687
OpenAlex
W2093494581
Cited by
1,343
References
29
Citations by year
2026: 36 · 2025: 57 · 2024: 87 · 2023: 75 · 2022: 89 · 2021: 115 · 2020: 112 · 2019: 100 · 2018: 110 · 2017: 120 · 2016: 107 · 2015: 121 · 2014: 126 · 2013: 80 · 2012: 4
FWCI
42.52
Type
journal article
Language
en
Open access
Locations
  • Nature (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
  • Digital Access to Scholarship at Harvard (DASH) (Harvard University) (submittedVersion, cc-by)
  • RePEc: Research Papers in Economics (submittedVersion)
Funders
  • National Institute on Aging (AG040019, R01AG032977, AG032977, R21AG034641, R01AG040019, AG034641)
  • National Heart, Lung, and Blood Institute (F32HL108570)
  • National Institute of Diabetes and Digestive and Kidney Diseases (K08DK090147)
  • National Institute of Biomedical Imaging and Bioengineering (EB001974, P20EB001974, P41EB001974)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Congenital heart defects research
  • Life Sciences › Neuroscience › Developmental Neuroscience › Neurogenesis and neuroplasticity mechanisms
  • Health Sciences › Medicine › Genetics › Mesenchymal stem cell research
Keywords
cardiomyocyte turnover, myocardial infarction, cardiomyocyte proliferation, genetic fate mapping, polyploidy, multinucleation, cell cycle activity, cardiac regeneration
MeSH terms
Aging, Animals, Cell Cycle, DNA, Female, Heart, Homeostasis, Isotope Labeling, Male, Mammals, Myocardial Infarction, Myocardium, Polyploidy, Regeneration, Mass Spectrometry, Myocytes, Cardiac, Myoblasts, Cardiac, Mice

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