Journal
TISSUE ENGINEERING
Volume 11, Issue 11-12, Pages 1860-1866Publisher
MARY ANN LIEBERT, INC
DOI: 10.1089/ten.2005.11.1860
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Funding
- NHLBI NIH HHS [HL078534] Funding Source: Medline
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Novel strategies by which to repair ischemic myocardium after myocardial infarction include the use of three-dimensional polymer scaffolds. A comparative study was carried out to assess the therapeutic potential of fibrin, collagen I, and Matrigel as injectable biopolymers for repair after myocardial infarction. Using a rat model of left coronary artery occlusion followed by reperfusion, local injection of the biopolymers into the infarct zone yielded significantly higher levels of capillary formation, when compared with the saline control group, at 5 weeks posttreatment. However, the degree of angiogenesis was not significantly different among the biopolymers. In addition, the collagen biopolymer significantly enhanced infiltration of myofibroblasts into the infarct area when compared with the control group. The results of this study highlight the potential clinical benefit of these biopolymers as injectable scaffolds or cell delivery vehicles to the infarct zone after infarction.
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