Las células madre hematopoyéticas no se transdiferencian en miocitos cardíacos en los infartos de miocardio

Charles E Murry1, Mark H Soonpaa, Hans Reinecke

  • 1Department of Pathology, Box 357470, Room D-514 HSB, University of Washington, Seattle, Washington 98195, USA. murry@u.washington.edu

Nature
|March 23, 2004
PubMed
Resumen

Las células madre hematopoyéticas no se convierten fácilmente en células cardíacas. Este estudio no encontró evidencia de transdiferenciación de células madre en cardiomiocitos, lo que advierte contra los ensayos clínicos para la reparación del corazón utilizando estas células.

Videos de Conceptos Relacionados

Tissue Renewal without Stem Cells01:23

Tissue Renewal without Stem Cells

After cellular or tissue damage, the resident stem cells present in the human body can locally repair and regenerate the damaged tissue or organ. However, even though some tissues do not have stem cells, they can repair and regenerate with the help of pre-existing cells. For example, beta cells of the pancreas and hepatocytes of the liver can divide to renew and regenerate the tissue. Here, both cell division and cell death are well regulated by homeostasis.
However, failure of such a system...
Lifecycle of Erythrocytes01:22

Lifecycle of Erythrocytes

Erythrocytes, also known as red blood cells, constantly move through blood capillaries. As a result, they damage their plasma membrane due to the continuous friction. Typically, after 100 to 120 days, erythrocytes become rigid and fragile as they wear out. As they pass through small vessels in the spleen and liver, they can get trapped and break apart into fragments.
The resident phagocytic macrophages deal with these damaged cells by engulfing them and separating their globin and heme groups.
Myocarditis I: Introduction01:21

Myocarditis I: Introduction

Myocarditis is inflammation of the myocardium, which is the muscular layer of the heart.EtiologyMyocarditis has a diverse etiology, including a wide range of infectious and non-infectious causes:Infectious CausesViral: Common viruses include Coxsackie A and B, adenovirus, parvovirus B19, enteroviruses, and influenza A.Bacterial: Examples include infections caused by Streptococcus, Staphylococcus, and Mycoplasma species.Rickettsial: Infections like Rocky Mountain spotted fever can result in...