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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
2011-1-5
pubmed:abstractText
Despite the safety and feasibility of mesenchymal stem cell (MSC) therapy, an optimal cell type has not yet emerged in terms of electromechanical integration in infarcted myocardium. We found that poor to moderate survival benefits of MSC-implanted rats were caused by incomplete electromechanical integration induced by tissue heterogeneity between myocytes and engrafted MSCs in the infarcted myocardium. Here, we report the development of cardiogenic cells from rat MSCs activated by phorbol myristate acetate, a PKC activator, that exhibited high expressions of cardiac-specific markers and Ca(2+) homeostasis-related proteins and showed adrenergic receptor signaling by norepinephrine. Histological analysis showed high connexin 43 coupling, few inflammatory cells, and low fibrotic markers in myocardium implanted with these phorbol myristate acetate-activated MSCs. Infarct hearts implanted with these cells exhibited restoration of conduction velocity through decreased tissue heterogeneity and improved myocardial contractility. These findings have major implications for the development of better cell types for electromechanical integration of cell-based treatment for infarcted myocardium.
pubmed:commentsCorrections
http://linkedlifedata.com/resource/pubmed/commentcorrection/21173226-10571542, http://linkedlifedata.com/resource/pubmed/commentcorrection/21173226-11804996, http://linkedlifedata.com/resource/pubmed/commentcorrection/21173226-12481136, http://linkedlifedata.com/resource/pubmed/commentcorrection/21173226-12707230, http://linkedlifedata.com/resource/pubmed/commentcorrection/21173226-12910262, http://linkedlifedata.com/resource/pubmed/commentcorrection/21173226-15016490, http://linkedlifedata.com/resource/pubmed/commentcorrection/21173226-15246726, http://linkedlifedata.com/resource/pubmed/commentcorrection/21173226-15851199, http://linkedlifedata.com/resource/pubmed/commentcorrection/21173226-15927979, http://linkedlifedata.com/resource/pubmed/commentcorrection/21173226-16003373, http://linkedlifedata.com/resource/pubmed/commentcorrection/21173226-16606790, http://linkedlifedata.com/resource/pubmed/commentcorrection/21173226-17341383, http://linkedlifedata.com/resource/pubmed/commentcorrection/21173226-17347495, http://linkedlifedata.com/resource/pubmed/commentcorrection/21173226-1740234, http://linkedlifedata.com/resource/pubmed/commentcorrection/21173226-18064002, http://linkedlifedata.com/resource/pubmed/commentcorrection/21173226-18288183, http://linkedlifedata.com/resource/pubmed/commentcorrection/21173226-18314435, http://linkedlifedata.com/resource/pubmed/commentcorrection/21173226-1835945, http://linkedlifedata.com/resource/pubmed/commentcorrection/21173226-18437298, http://linkedlifedata.com/resource/pubmed/commentcorrection/21173226-18480249, http://linkedlifedata.com/resource/pubmed/commentcorrection/21173226-19489098, http://linkedlifedata.com/resource/pubmed/commentcorrection/21173226-19544472, http://linkedlifedata.com/resource/pubmed/commentcorrection/21173226-20660803, http://linkedlifedata.com/resource/pubmed/commentcorrection/21173226-8325977, http://linkedlifedata.com/resource/pubmed/commentcorrection/21173226-8353918, http://linkedlifedata.com/resource/pubmed/commentcorrection/21173226-9209969
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jan
pubmed:issn
1091-6490
pubmed:author
pubmed:issnType
Electronic
pubmed:day
4
pubmed:volume
108
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
296-301
pubmed:dateRevised
2011-7-20
pubmed:meshHeading
pubmed-meshheading:21173226-Analysis of Variance, pubmed-meshheading:21173226-Animals, pubmed-meshheading:21173226-Blotting, Western, pubmed-meshheading:21173226-Connexin 43, pubmed-meshheading:21173226-Cytokines, pubmed-meshheading:21173226-Electrocardiography, pubmed-meshheading:21173226-Enzyme-Linked Immunosorbent Assay, pubmed-meshheading:21173226-Fluorescent Antibody Technique, pubmed-meshheading:21173226-In Situ Nick-End Labeling, pubmed-meshheading:21173226-Isoproterenol, pubmed-meshheading:21173226-Male, pubmed-meshheading:21173226-Mesenchymal Stem Cell Transplantation, pubmed-meshheading:21173226-Mesenchymal Stem Cells, pubmed-meshheading:21173226-Myocardial Contraction, pubmed-meshheading:21173226-Myocardial Infarction, pubmed-meshheading:21173226-Myocytes, Cardiac, pubmed-meshheading:21173226-Norepinephrine, pubmed-meshheading:21173226-Rats, pubmed-meshheading:21173226-Rats, Sprague-Dawley, pubmed-meshheading:21173226-Receptors, Adrenergic, pubmed-meshheading:21173226-Reverse Transcriptase Polymerase Chain Reaction, pubmed-meshheading:21173226-Tetradecanoylphorbol Acetate, pubmed-meshheading:21173226-Tissue Therapy
pubmed:year
2011
pubmed:articleTitle
Cardiomyocytes from phorbol myristate acetate-activated mesenchymal stem cells restore electromechanical function in infarcted rat hearts.
pubmed:affiliation
Research Institute of Science for Aging, Yonsei University, Seoul 120-752, Korea.
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