The publication detail shows the title, authors (with indicators showing other profiled authors), information on the publishing organization, abstract and a link to the article in PubMed. This abstract is what is used to create the fingerprint of the publication. If any grants are referenced by the publication, they will be listed here as well.
Cells expressing early cardiac markers reside in the bone marrow and are mobilized into the peripheral blood after myocardial infarction.
Magda Kucia; Buddhadeb Dawn; Greg Hunt; Yiru Guo; Marcin Wysoczynski; Marcin Majka; Janina Ratajczak; Francine Rezzoug; Suzanne T Ildstad; Roberto Bolli; et al. (Profiled Author: Roberto Bolli)
Stem Cell Biology Program, University of Louisville, Louisville, Ken 40202, USA.
Circulation research 2004;95(12):1191-9.
The concept that bone marrow (BM)-derived cells participate in cardiac regeneration remains highly controversial and the identity of the specific cell type(s) involved remains unknown. In this study, we report that the postnatal BM contains a mobile pool of cells that express early cardiac lineage markers (Nkx2.5/Csx, GATA-4, and MEF2C). These cells are present in significant amounts in BM harvested from young mice but their abundance decreases with age; in addition, the responsiveness of these cells to gradients of motomorphogens SDF-1, HGF, and LIF changes with age. FACS analysis, combined with analysis of early cardiac markers at the mRNA and protein levels, revealed that cells expressing these markers reside in the nonadherent, nonhematopoietic CXCR4+/Sca-1+/lin-/CD45- mononuclear cell (MNC) fraction in mice and in the CXCR4+/CD34+/AC133+/CD45- BMMNC fraction in humans. These cells are mobilized into the peripheral blood after myocardial infarction and chemoattracted to the infarcted myocardium in an SDF-1-CXCR4-, HGF-c-Met-, and LIF-LIF-R-dependent manner. To our knowledge, this is the first demonstration that the postnatal BM harbors a nonhematopoietic population of cells that express markers for cardiac differentiation. We propose that these potential cardiac progenitors may account for the myocardial regenerative effects of BM. The present findings provide a novel paradigm that could reconcile current controversies and a rationale for investigating the use of BM-derived cardiac progenitors for myocardial regeneration.
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