Skip to main content

Thank you for visiting nature.com. You are using a browser version with limited support for CSS. To obtain the best experience, we recommend you use a more up to date browser (or turn off compatibility mode in Internet Explorer). In the meantime, to ensure continued support, we are displaying the site without styles and JavaScript.

  • Article
  • Published:

Growth-factor-mediated cardiac stem cell activation in myocardial regeneration

Abstract

The concept of an intrinsic regenerative capacity of the adult mammalian myocardium owing to the presence of cardiac stem cells (CSCs) in the atria and ventricles is starting to be accepted by the cardiovascular research community. The identification of this cell population has improved the prospects for developing successful clinical protocols for human myocardial regeneration. In the normal adult myocardium, only a small fraction of CSCs undergo amplification and differentiation to replace the parenchymal cells lost by normal wear and tear. Physiological or pathological stimuli cause substantial activation of CSCs, which is mediated by a paracrine feedback loop between myocytes and CSCs. In response to stress, the myocytes produce growth factors and cytokines, for which CSCs have receptors, and autocrine, self-sustaining activation of growth-factor production is simultaneously triggered in the CSCs. These findings from human and animal studies led us to test whether in situ activation of CSCs by growth factors would be as effective as transplantation of CSCs into the regenerating myocardium after ischemia in an animal model that has relevance to humans. In a porcine model, we produced extensive and functionally relevant myocardial regeneration. Here, we discuss the properties of endogenous myocardial stem cells that might be exploited to produce clinical myocardial regeneration without the need for cell transplantation.

Key Points

  • The adult mammalian heart exhibits a substantial regenerative capacity, which is derived from resident cardiac stem cells (CSCs)

  • Physiological or pathological stimuli cause substantial activation of CSCs that participate in myocardial remodeling

  • Activation of CSCs during adaptation of the heart to stress is mediated by a paracrine–autocrine feedback loop between myocytes and CSCs

  • In situ activation of CSCs by growth factors in a porcine model, which has relevance to humans, is as effective as transplantation of CSCs into the regenerating myocardium after ischemia

  • The properties of endogenous myocardial stem cells can be exploited to produce myocardial regeneration without the need for cell transplantation

  • For meaningful myocardial regeneration to occur, clinical trials using CSCs must be derived from solid, clean, and reproducible basic science data

This is a preview of subscription content, access via your institution

Access options

Buy this article

Prices may be subject to local taxes which are calculated during checkout

Figure 1: Stereotypical response of cardiomyocytes to stress
Figure 2: Cardiac stem cells possess receptors for insulin-like growth factor 1
Figure 3: Cardiac stem cells possess receptors for hepatocyte growth factor

Similar content being viewed by others

References

  1. Serruys PW (2006) Fourth annual American College of Cardiology international lecture: a journey in the interventional field. J Am Coll Cardiol 47: 1754–1768

    Article  Google Scholar 

  2. Hunt SA et al. (2005) American College of Cardiology; American Heart Association Task Force on Practice Guidelines; American College of Chest Physicians; International Society for Heart and Lung Transplantation; Heart Rhythm Society. ACC/AHA 2005 Guideline Update for the Diagnosis and Management of Chronic Heart Failure in the Adult: a report of the American College of Cardiology/American Heart Association Task Force on Practice Guidelines (Writing Committee to Update the 2001 Guidelines for the Evaluation and Management of Heart Failure): developed in collaboration with the American College of Chest Physicians and the International Society for Heart and Lung Transplantation: endorsed by the Heart Rhythm Society. Circulation 112: e154–e235

    Article  Google Scholar 

  3. Anversa P and Nadal-Ginard B (2002) Myocyte renewal and ventricular remodelling. Nature 415: 240–243

    Article  CAS  Google Scholar 

  4. Dib N et al. (Eds, 2006) Stem Cell Therapy and Tissue Engineering for Cardiovascular Repair from Basic Research to Clinical Applications. New York: Springer

    Book  Google Scholar 

  5. Mendez-Ferrer S et al. (2006) Resident progenitors and bone marrow stem cells in myocardial renewal and repair. Nat Clin Pract Cardiovasc Med 3 (Suppl 1): S83–S89

    Article  CAS  Google Scholar 

  6. Dimmeler S et al. (2005) Unchain my heart: the scientific foundations of cardiac repair. J Clin Invest 115: 572–583

    Article  CAS  Google Scholar 

  7. Korbling M and Estrov Z (2003) Adult stem cells for tissue repair—a new therapeutic concept? N Engl J Med 349: 570–582

    Article  Google Scholar 

  8. Gage FH (2000) Mammalian neural stem cells. Science 287: 1433–1438

    Article  CAS  Google Scholar 

  9. Beltrami AP et al. (2003) Adult cardiac stem cells are multipotent and support myocardial regeneration. Cell 114: 763–776

    Article  CAS  Google Scholar 

  10. Oh H et al. (2003) Cardiac progenitor cells from adult myocardium: homing, differentiation, and fusion after infarction. Proc Natl Acad Sci USA 100: 12313–12318

    Article  CAS  Google Scholar 

  11. Matsuura K et al. (2004) Adult cardiac Sca-1-positive cells differentiate into beating cardiomyocytes. J Biol Chem 279: 11384–11391

    Article  CAS  Google Scholar 

  12. Martin CM et al. (2004) Persistent expression of the ATP-binding cassette transporter, Abcg2, identifies cardiac SP cells in the developing and adult heart. Dev Biol 265: 262–275

    Article  CAS  Google Scholar 

  13. Messina E et al. (2004) Isolation and expansion of adult cardiac stem cells from human and murine heart. Circ Res 95: 911–921

    Article  CAS  Google Scholar 

  14. Laugwitz KL et al. (2005) Postnatal isl1+ cardioblasts enter fully differentiated cardiomyocyte lineages. Nature 433: 647–653

    Article  CAS  Google Scholar 

  15. Pfister O et al. (2005) CD31 but not CD31+ cardiac side population cells exhibit functional cardiomyogenic differentiation. Circ Res 97: 52–61

    Article  CAS  Google Scholar 

  16. Tomita Y et al. (2005) Cardiac neural crest cells contribute to the dormant multipotent stem cell in the mammalian heart. J Cell Biol 170: 1135–1146

    Article  CAS  Google Scholar 

  17. Ellison GM et al. (2006) The pig heart harbors cardiac stem-progenitor cells which respond to growth factor stimulation regenerating the infarcted myocardium [abstract]. Eur Heart J 27: 546

    Google Scholar 

  18. Torella D et al. (2005) Cardiac stem and progenitor cell biology for regenerative medicine. Trends Cardiovasc Med 15: 229–236

    Article  CAS  Google Scholar 

  19. Nadal-Ginard B et al. (2003) Myocyte death, growth, and regeneration in cardiac hypertrophy and failure. Circ Res 92: 139–150

    Article  CAS  Google Scholar 

  20. Torella D et al. Resident cardiac stem cells. Cell Mol Life Sci, in press.

  21. Torella D et al. (2006) Exercise training activates cardiac stem/progenitor cells through the induction of growth factor production by the myocardium [abstract]. Eur Heart J 27: 444

    Google Scholar 

  22. Ellison GM et al. (2006) Myocardial damage induces a growth factor para/autocrine loop in the spared myocytes which fosters cardiac stem cell activation and ensuing myocyte regeneration [abstract]. Circulation 114 II: 298

    Google Scholar 

  23. Torella D et al. (2006) Resident human cardiac stem cells: role in cardiac cellular homeostasis and potential for myocardial regeneration. Nat Clin Pract Cardiovasc Med 3 (Suppl 1): S8–S13

    Article  CAS  Google Scholar 

  24. Urbanek K et al. (2005) Cardiac stem cells possess growth factor-receptor systems that after activation regenerate the infarcted myocardium, improving ventricular function and long-term survival. Circ Res 97: 663–673

    Article  CAS  Google Scholar 

  25. Linke A et al. (2005) Stem cells in the dog heart are self-renewing, clonogenic, and multipotent and regenerate infarcted myocardium, improving cardiac function. Proc Natl Acad Sci USA 102: 8966–8971

    Article  CAS  Google Scholar 

  26. Torella D et al. (2006) Testing regeneration of human myocardium without knowing the identity and the number of effective bone marrow cells transplanted: are the results meaningful? J Am Coll Cardiol 48: 417

    Article  Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to Bernardo Nadal-Ginard.

Ethics declarations

Competing interests

The authors declare no competing financial interests.

Rights and permissions

Reprints and permissions

About this article

Cite this article

Torella, D., Ellison, G., Karakikes, I. et al. Growth-factor-mediated cardiac stem cell activation in myocardial regeneration. Nat Rev Cardiol 4 (Suppl 1), S46–S51 (2007). https://doi.org/10.1038/ncpcardio0772

Download citation

  • Received:

  • Accepted:

  • Issue Date:

  • DOI: https://doi.org/10.1038/ncpcardio0772

This article is cited by

Search

Quick links

Nature Briefing

Sign up for the Nature Briefing newsletter — what matters in science, free to your inbox daily.

Get the most important science stories of the day, free in your inbox. Sign up for Nature Briefing