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Human engineered heart tissue transplantation in a guinea pig chronic injury model.
von Bibra, Constantin; Shibamiya, Aya; Geertz, Birgit; Querdel, Eva; Köhne, Maria; Stüdemann, Tim; Starbatty, Jutta; Schmidt, Felix N; Hansen, Arne; Hiebl, Bernhard; Eschenhagen, Thomas; Weinberger, Florian.
Afiliación
  • von Bibra C; Department of Experimental Pharmacology and Toxicology, University Medical Center Hamburg-Eppendorf, Germany; German Centre for Cardiovascular Research (DZHK), partner site Hamburg/Kiel/Lübeck, Germany.
  • Shibamiya A; Department of Experimental Pharmacology and Toxicology, University Medical Center Hamburg-Eppendorf, Germany; German Centre for Cardiovascular Research (DZHK), partner site Hamburg/Kiel/Lübeck, Germany.
  • Geertz B; Department of Experimental Pharmacology and Toxicology, University Medical Center Hamburg-Eppendorf, Germany.
  • Querdel E; Department of Experimental Pharmacology and Toxicology, University Medical Center Hamburg-Eppendorf, Germany; German Centre for Cardiovascular Research (DZHK), partner site Hamburg/Kiel/Lübeck, Germany.
  • Köhne M; Department of Experimental Pharmacology and Toxicology, University Medical Center Hamburg-Eppendorf, Germany; German Centre for Cardiovascular Research (DZHK), partner site Hamburg/Kiel/Lübeck, Germany.
  • Stüdemann T; Department of Experimental Pharmacology and Toxicology, University Medical Center Hamburg-Eppendorf, Germany; German Centre for Cardiovascular Research (DZHK), partner site Hamburg/Kiel/Lübeck, Germany.
  • Starbatty J; Department of Experimental Pharmacology and Toxicology, University Medical Center Hamburg-Eppendorf, Germany.
  • Schmidt FN; Department of Osteology and Biomechanics, University Medical Center Hamburg-Eppendorf, Germany.
  • Hansen A; Department of Experimental Pharmacology and Toxicology, University Medical Center Hamburg-Eppendorf, Germany; German Centre for Cardiovascular Research (DZHK), partner site Hamburg/Kiel/Lübeck, Germany.
  • Hiebl B; Institute for Animal Hygiene, Animal Welfare and Farm Animal Behaviour, University of Veterinary Medicine Hannover, Foundation, Hanover, Germany.
  • Eschenhagen T; Department of Experimental Pharmacology and Toxicology, University Medical Center Hamburg-Eppendorf, Germany; German Centre for Cardiovascular Research (DZHK), partner site Hamburg/Kiel/Lübeck, Germany.
  • Weinberger F; Department of Experimental Pharmacology and Toxicology, University Medical Center Hamburg-Eppendorf, Germany; German Centre for Cardiovascular Research (DZHK), partner site Hamburg/Kiel/Lübeck, Germany. Electronic address: f.weinberger@uke.de.
J Mol Cell Cardiol ; 166: 1-10, 2022 05.
Article en En | MEDLINE | ID: mdl-35081367
Myocardial injury leads to an irreversible loss of cardiomyocytes (CM). The implantation of human engineered heart tissue (EHT) has become a promising regenerative approach. Previous studies exhibited beneficial, dose-dependent effects of human induced pluripotent stem cell (hiPSC)-derived EHT patch transplantation in a guinea pig model in the subacute phase of myocardial injury. Yet, advanced heart failure often results from a chronic remodeling process. Therefore, from a clinical standpoint it is worthwhile to explore the ability to repair the chronically injured heart. In this study human EHT patches were generated from hiPSC-derived CMs (15 × 106 cells) and implanted epicardially four weeks after injury in a guinea pig cryo-injury model. Cardiac function was evaluated by echocardiography after a follow-up period of four weeks. Hearts revealed large transmural myocardial injuries amounting to 27% of the left ventricle. EHT recipient hearts demonstrated compact muscle islands of human origin in the scar region, as indicated by a positive staining for human Ku80 and dystrophin, remuscularizing 5% of the scar area. Echocardiographic analysis demonstrated no significant functional difference between animals that received EHT patches and animals in the cell-free control group (fractional area change 36% vs. 34%). Thus, EHT patches engrafted in the chronically injured heart but in contrast to the subacute model, grafts were smaller and EHT patch transplantation did not improve left ventricular function, highlighting the difficulties for a regenerative approach.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Células Madre Pluripotentes Inducidas Límite: Animals / Humans Idioma: En Revista: J Mol Cell Cardiol Año: 2022 Tipo del documento: Article País de afiliación: Alemania Pais de publicación: Reino Unido
Texto completo
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Células Madre Pluripotentes Inducidas Límite: Animals / Humans Idioma: En Revista: J Mol Cell Cardiol Año: 2022 Tipo del documento: Article País de afiliación: Alemania Pais de publicación: Reino Unido