Epicardial Progenitor Cells in Cardiac Development and Regeneration.
Summary of "Epicardial Progenitor Cells in Cardiac Development and Regeneration."
The epicardium forms an epithelial layer on the surface of the heart. It is derived from a cluster of mesothelial cells, which is termed the proepicardium. The proepicardium gives rise not only to the epicardium but also to epicardium-derived cells. These cells populate the myocardial wall and differentiate into smooth muscle cells, fibroblast, and possibly endothelial cells. In this review, the formation of the proepicardium is discussed. Marker genes, suitable to identify these cells in the embryo and in the adult, are introduced. Recent evidence suggests that the PE is made up of distinct cell populations. These cell lineages can be distinguished on the basis of marker gene expression and differ in their differentiation potential. The role of the epicardium as a resource for cardiac stem cells and its importance in cardiac regeneration is also discussed.
Harefield Heart Science Centre, National Heart and Lung Institute, Imperial College London, Hill End Road, Harefield, Middlesex, UB9 6JH, UK.
This article was published in the following journal.
Name: Journal of cardiovascular translational research
- PubMed Source: http://www.ncbi.nlm.nih.gov/pubmed/22653801
- DOI: http://dx.doi.org/10.1007/s12265-012-9377-4
Medical and Biotech [MESH] Definitions
The reverse developmental process in which differentiated cells with specialized functions become undifferentiated PROGENITOR CELLS once again. Dedifferentiation and subsequent proliferation provide the basis for tissue regeneration and the formation of new stem cell lineages.
Erythroid Precursor Cells
The cells in the erythroid series derived from MYELOID PROGENITOR CELLS or from the bi-potential MEGAKARYOCYTE-ERYTHROID PROGENITOR CELLS which eventually give rise to mature RED BLOOD CELLS. The erythroid progenitor cells develop in two phases: erythroid burst-forming units (BFU-E) followed by erythroid colony-forming units (CFU-E); BFU-E differentiate into CFU-E on stimulation by ERYTHROPOIETIN, and then further differentiate into ERYTHROBLASTS when stimulated by other factors.
Myeloid Progenitor Cells
Stem cells derived from HEMATOPOIETIC STEM CELLS. Derived from these myeloid progenitor cells are the MEGAKARYOCYTES; ERYTHROID CELLS; MYELOID CELLS; and some DENDRITIC CELLS.
Precursor Cells, B-lymphoid
Lymphocyte progenitor cells that are restricted in their differentiation potential to the B lymphocyte lineage. The pro-B cell stage of B lymphocyte development precedes the pre-B cell stage.
Guided Tissue Regeneration
Procedures for enhancing and directing tissue repair and renewal processes, such as BONE REGENERATION; NERVE REGENERATION; etc. They involve surgically implanting growth conducive tracks or conduits (TISSUE SCAFFOLDING) at the damaged site to stimulate and control the location of cell repopulation. The tracks or conduits are made from synthetic and/or natural materials and may include support cells and induction factors for CELL GROWTH PROCESSES; or CELL MIGRATION.
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