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10.1161/CIRCRESAHA.116.304668 http://scihub22266oqcxt.onion/10.1161/CIRCRESAHA.116.304668 C4380765!4380765 !25654979     free     free     free Warning: file_get_contents(https://eutils.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&id=25654979 &cmd=llinks): Failed to open stream: HTTP request failed! 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Direct evaluation of myocardial viability and stem cell engraftment demonstrates salvage of the injured myocardium |pdf=|usr=}}{{25654979 }} gab.com Text Direct evaluation of myocardial viability and stem cell engraftment demonstrates salvage of the injured myocardium JO: Circ Res http://www.kidney.de/pget.php?&tw=1&pmid=25654979 #FOAvip RATIONALE: The mechanism of functional restoration by stem cell therapy remains poorly understood. Novel manganese-enhanced MRI and bioluminescence reporter gene imaging were applied to follow myocardial viability and cell engraftment, respectively. Human-placenta-derived amniotic mesenchymal stem cells (AMCs) demonstrate unique immunoregulatory and precardiac properties. In this study, the restorative effects of 3 AMC-derived subpopulations were examined in a murine myocardial injury model: (1) unselected AMCs, (2) ckit(+)AMCs, and (3) AMC-derived induced pluripotent stem cells (MiPSCs). OBJECTIVE: To determine the differential restorative effects of the AMC-derived subpopulations in the murine myocardial injury model using multimodality imaging. METHODS AND RESULTS: SCID (severe combined immunodeficiency) mice underwent left anterior descending artery ligation and were divided into 4 treatment arms: (1) normal saline control (n=14), (2) unselected AMCs (n=10), (3) ckit(+)AMCs (n=13), and (4) MiPSCs (n=11). Cardiac MRI assessed myocardial viability and left ventricular function, whereas bioluminescence imaging assessed stem cell engraftment during a 4-week period. Immunohistological labeling and reverse transcriptase polymerase chain reaction of the explanted myocardium were performed. The unselected AMC and ckit(+)AMC-treated mice demonstrated transient left ventricular functional improvement. However, the MiPSCs exhibited a significantly greater increase in left ventricular function compared with all the other groups during the entire 4-week period. Left ventricular functional improvement correlated with increased myocardial viability and sustained stem cell engraftment. The MiPSC-treated animals lacked any evidence of de novo cardiac differentiation. CONCLUSION: The functional restoration seen in MiPSCs was characterized by increased myocardial viability and sustained engraftment without de novo cardiac differentiation, indicating salvage of the injured myocardium. Twit Text FOAVip Direct evaluation of myocardial viability and stem cell engraftment demonstrates salvage of the injured myocardium ????Circ Res http://www.kidney.de/pget.php?&tw=1&pmid=25654979 #FOAvip Twit Text # Free Paper on # # # # # LINK http://www.kidney.de/pget.php?&tw=1&pmid=25654979 #FOAvip English Wikipedia <ref>{{Cite pmid|25654979 }}</ref> Direct evaluation of myocardial viability and stem cell engraftment demonstrates salvage of the injured myocardium #MMPMID25654979 Kim PJ ; Mahmoudi M ; Ge X ; Matsuura Y ; Toma I ; Metzler S ; Kooreman NG ; Ramunas J ; Holbrook C ; McConnell MV ; Blau H ; Harnish P ; Rulifson E ; Yang PC Circ Res 2015[Mar]; 116 (7 ): e40-50 PMID25654979 show ga RATIONALE: The mechanism of functional restoration by stem cell therapy remains poorly understood. Novel manganese-enhanced MRI and bioluminescence reporter gene imaging were applied to follow myocardial viability and cell engraftment, respectively. Human-placenta-derived amniotic mesenchymal stem cells (AMCs) demonstrate unique immunoregulatory and precardiac properties. In this study, the restorative effects of 3 AMC-derived subpopulations were examined in a murine myocardial injury model: (1) unselected AMCs, (2) ckit(+)AMCs, and (3) AMC-derived induced pluripotent stem cells (MiPSCs). OBJECTIVE: To determine the differential restorative effects of the AMC-derived subpopulations in the murine myocardial injury model using multimodality imaging. METHODS AND RESULTS: SCID (severe combined immunodeficiency) mice underwent left anterior descending artery ligation and were divided into 4 treatment arms: (1) normal saline control (n=14), (2) unselected AMCs (n=10), (3) ckit(+)AMCs (n=13), and (4) MiPSCs (n=11). Cardiac MRI assessed myocardial viability and left ventricular function, whereas bioluminescence imaging assessed stem cell engraftment during a 4-week period. Immunohistological labeling and reverse transcriptase polymerase chain reaction of the explanted myocardium were performed. The unselected AMC and ckit(+)AMC-treated mice demonstrated transient left ventricular functional improvement. However, the MiPSCs exhibited a significantly greater increase in left ventricular function compared with all the other groups during the entire 4-week period. Left ventricular functional improvement correlated with increased myocardial viability and sustained stem cell engraftment. The MiPSC-treated animals lacked any evidence of de novo cardiac differentiation. CONCLUSION: The functional restoration seen in MiPSCs was characterized by increased myocardial viability and sustained engraftment without de novo cardiac differentiation, indicating salvage of the injured myocardium. |*Mesenchymal Stem Cell Transplantation [MESH] |*Multimodal Imaging [MESH] |Animals [MESH] |Cell Separation/methods [MESH] |Cell Survival [MESH] |Coronary Stenosis/complications [MESH] |Disease Models, Animal [MESH] |Female [MESH] |Gene Expression Profiling [MESH] |Genes, Reporter [MESH] |Graft Survival [MESH] |Heterografts [MESH] |Humans [MESH] |Induced Pluripotent Stem Cells/*transplantation [MESH] |Ligation [MESH] |Luminescent Measurements [MESH] |Magnetic Resonance Imaging/*methods [MESH] |Male [MESH] |Manganese [MESH] |Mesenchymal Stem Cells/chemistry/*cytology [MESH] |Mice [MESH] |Mice, Mutant Strains [MESH] |Mice, SCID [MESH] |Myocardial Infarction/etiology/pathology/physiopathology/*therapy [MESH] |Myocardium/*pathology [MESH] |Placenta/cytology [MESH] |Pregnancy [MESH] |Proto-Oncogene Proteins c-kit/analysis [MESH] |Real-Time Polymerase Chain Reaction [MESH] |Reverse Transcriptase Polymerase Chain Reaction [MESH] |Telomere Homeostasis [MESH]Direct evaluation of myocardial viability and stem cell engraftment de(epmc).pdf DeepDyve Pubget Overpricing