TITLE

Effects of combined mesenchymal stem cells and heme oxygenase-1 therapy on cardiac performance

AUTHOR(S)
Zeng, Bin; Chen, Honglei; Zhu, Chengang; Ren, Xiaofeng; Lin, Guosheng; Cao, Feng
PUB. DATE
October 2008
SOURCE
European Journal of Cardio-Thoracic Surgery;Oct2008, Vol. 34 Issue 4, p850
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Abstract: Objective: Bone marrow mesenchymal stem cells (MSCs) have the potential to repair the infarcted myocardium and improve cardiac function. However, this approach is limited by its poor viability after transplantation, and controversy still exists over the mechanism by which MSCs contribute to the tissue repair. Methods: The human heme oxygenase-1 (hHO-1) was transfected into cultured MSCs using an adenoviral vector. 1×106 Ad-hHO-1-transfected MSCs (HO-1-MSCs) or Ad-Null-transfected MSCs (Null-MSCs) or PBS only (PBS group) were injected intramyocardially into rat hearts 1h after myocardial infarction. Results: HO-1-MSCs survived in the infarcted myocardium, and expressed hHO-1 mRNA. The expression of basic fibroblast growth factor (bFGF) and vascular endothelial growth factor (VEGF) was significantly enhanced in HO-1-MSCs-treated hearts. At the same time, there were significant reduction of TNF-α, IL-1-beta and IL-6 mRNA, and marked increase of IL-10 mRNA in HO-1-MSCs-treated hearts. Moreover, a further downregulation of proapoptotic protein, Bax, and a marked increase in microvessel density were observed in HO-1-MSCs-treated hearts. The infarct size and cardiac performance were also significantly improved in HO-1-MSCs-treated hearts. Conclusion: The combined approach improves MSCs survival and is superior to MSCs injection alone.
ACCESSION #
34649570

 

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