Transendocardial Autologous Bone Marrow Mononuclear Cell Injection in Ischemic Heart Failure Postmortem Anatomicopathologic and Immunohistochemical Findings
Hans F. Dohmann,Emerson C. Perin,Christina Maeda Takiya,Guilherme V. Silva,Suzana A. Silva,Andre L.S. Sousa,Claudio Tinoco Mesquita,Maria-Isabel D. Rossi,Bernardo Miguel de Oliveira Pascarelli,Isabella Mariana de Assis,Hélio S. Dutra,Joao A.R. Assad,Rodrigo V. Castello-Branco,Cantidio Drummond,Hans J.F. Dohmann,James T. Willerson,Radovan Borojevic +16 more
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TLDR
Eleven months after treatment, morphological and immunocytochemical analysis of the sites of ABMM cell injection showed no abnormal cell growth or tissue lesions and suggested that an active process of angiogenesis was present in both the fibrotic cicatricial tissue and the adjacent cardiac muscle.Abstract:
Background— Cell-based therapies for treatment of ischemic heart disease are currently under investigation. We previously reported the results of a phase I trial of transendocardial injection of autologous bone marrow mononuclear (ABMM) cells in patients with end-stage ischemic heart disease. The current report focuses on postmortem cardiac findings from one of the treated patients, who died 11 months after cell therapy. Methods and Results— Anatomicopathologic, morphometric, and immunocytochemical findings from the anterolateral ventricular wall (with cell therapy) were compared with findings from the interventricular septum (normal perfusion and no cell therapy) and from the inferoposterior ventricular wall (extensive scar tissue and no cell therapy). No signs of adverse events were found in the cell-injected areas. Capillary density was significantly higher (P<0.001) in the anterolateral wall than in the previously infarcted tissue in the posterior wall. The prominent vasculature of the anterolateral w...read more
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Regenerative Potential of Cardiosphere-Derived Cells Expanded From Percutaneous Endomyocardial Biopsy Specimens
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