Mary Kearns-Jonker
Dept of Pathology and Human Anatomy, Loma Linda University School of Medicine,
Loma Linda, CA
Tanzania
Research Article
Genetically Engineered Mesenchymal Stem Cells Influence Gene
Expression in Donor Cardiomyocytes and the Recipient Heart
Author(s): Mary Kearns-Jonker, Wangde Dai, Mirja Gunthart, Tania Fuentes, Hsiao-Yun Yeh, Paul Gerczuk, Martin Pera, Christine Mummery and Robert A KlonerMary Kearns-Jonker, Wangde Dai, Mirja Gunthart, Tania Fuentes, Hsiao-Yun Yeh, Paul Gerczuk, Martin Pera, Christine Mummery and Robert A Kloner
Aims: Human embryonic stem cell-derived cardiomyocytes (hESC-CMs) or mesenchymal stem cells (MSCs) facilitate post-infarct recovery, but the potential benefit of combination therapy using MSCs and hESC-CMs has not been examined. Our objective was to define the gene expression changes in donor and host-derived cells that are induced in vivo after co-transplantation of cardiomyocytes with and without mesenchymal stem cells expressing the prosurvival gene heme oxygenase 1. Methods and results: Human MSCs were engineered to over-express heme oxygenase-1 (HO-1) following lentiviral vector-mediated transduction. Athymic nude rats were subjected to myocardial infarction and received hESC-CMs alone, hESC-CMs plus human MSCs, hESC-CMs plus MSCs overexpressing HO-1, or saline. Real time PCR identified gene expression changes. Cardiac function was assessed by angiography. Co-transplanta.. View More»
DOI:
10.4172/2157-7633.S1-005