Abstract:
:The development of cell- and gene-based strategies for regenerative medicine offers a therapeutic option for the repair and potential regeneration of damaged cardiac tissue post-myocardial infarction (MI). Human umbilical cord subepithelial cell-derived stem cells (hUC-SECs), human bone marrow-derived mesenchymal stem cells (hBM-MSCs), and human induced pluripotent stem cell-derived cardiomyocytes (hiPSC-CMs), all derived from human tissue, have been shown to have in vitro and in vivo therapeutic potential. Additionally, S100a1, VEGF165, and stromal-derived factor-1α (SDF-1α) genes all have the potential to improve cardiac function and/or effect adverse remodeling. In this study, we compared the therapeutic potential of hBM-MSCs, hUC-SECs, and hiPSC-CMs along with plasmid-based genes to evaluate the in vivo potential of intramyocardially injected biologics to enhance cardiac function in a mouse MI model. Human cells derived from various tissue types were expanded under hypoxic conditions and injected intramyocardially into mice that had undergone left anterior descending (LAD) artery ligation. Similarly, plasmids were also injected into three groups of mice after LAD ligation. Seven experimental groups were studied in total: (1) control (saline), (2) hBM-MSCs, (3) hiPSC-CMs, (4) hUC-SECs, (5) S100a1 plasmid, (6) VEGF165 plasmid, and (7) SDF-1α plasmid. We evaluated echocardiography, hemodynamic catheterization measurements, and histology at 4 and 12 weeks post-biologic injection. Significant improvement was observed in cardiac function and contractility in hiPSC-CM and S100a1 groups and a significant reduction in left ventricle scar within the hUC-SEC group and a slight improvement in the SDF-1α and VEGF165 groups compared to the control group. These results demonstrate the potential for new biologic therapies to reduce scar burden and improve contractile function.
journal_name
Cell Transplantjournal_title
Cell transplantationauthors
Winters AA,Bou-Ghannam S,Thorp H,Hawayek JA,Atkinson DL,Bartlett CE,Silva FJ,Hsu EW,Moreno AP,Grainger DA,Patel ANdoi
10.3727/096368916X691501subject
Has Abstractpub_date
2016-01-01 00:00:00pages
1591-1607issue
9eissn
0963-6897issn
1555-3892pii
content-CT-2582_Winters_et_aljournal_volume
25pub_type
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