Abstract
Growth factor therapy provides a therapeutic alternative for "no option" patients with coronary disease. Fibroblast Growth Factor-2 (FGF-2) predominantly stimulates angiogenesis, the growth of new capillaries, whereas Monocyte Chemoattractant Protein-1 (MCP-1) is considered an arteriogenic agent. We hypothesised a synergetic effect of FGF-2 and MCP-1 in ischemic myocardium. A severe coronary stenosis was created in pigs. After one week, chronic ischemia was confirmed by angiography, echocardiography, reduced ejection fraction, and increase of marker enzymes. FGF-2, MCP-1, both, or vector only were then injected intramyocardially as plasmid DNA in the impaired area. Regional contractility and number of capillaries and arterial vessels were evaluated after three months. FGF-2, FGF-2+MCP-1, and vector, but not MCP-1 alone improved regional contractility at rest, whereas only FGF-2 alone ameliorated function under stress conditions. Angiogenesis in the ischemic area was stimulated by FGF-2 compared to MCP-1. In contrast, MCP-1 induced arteriogenesis relative to FGF-2. Differences for vessel growth and regional function were apparent between FGF-2 and MCP-1. This contrast could allow the speculation that development of a flow reserv...Continue Reading
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Oct 19, 2010·The Journal of Thoracic and Cardiovascular Surgery·William HiesingerY Joseph Woo
Apr 7, 2010·The Journal of Thoracic and Cardiovascular Surgery·J Raymond FitzpatrickY Joseph Woo
Jan 30, 2010·Biomaterials·Steven M JayW Mark Saltzman
Jan 24, 2012·The Journal of Thoracic and Cardiovascular Surgery·William HiesingerY Joseph Woo