Induction of collateral artery growth and improvement of post-infarct heart function by hepatocyte growth factor gene transfer

Acta Pharmacologica Sinica
Wei WangWenZhu Ma

Abstract

To study the effect of adenovirus5-mediated human hepatocyte growth factor (Ad(5)-HGF) transfer on post-infarct heart failure in a swine model. Twelve young Suzhong swine were randomly divided into 2 groups: the Ad(5)-HGF group (n=6) and the null-Ad(5) group (n=6). Four weeks after left anterior descending coronary artery (LAD) ligation, Ad5-HGF was transferred into the myocardium via the right coronary artery. Coronary angiography and gated cardiac perfusion imaging were performed at the end of 4 and 7 weeks after LAD ligation, respectively, to evaluate collateral artery growth and cardiac perfusion. Then all animals were killed, the expression of HGF and alpha-smooth muscle actin (alpha-SMA) were evaluated by enzyme-linked immunosorbent assay and immunohistochemistry. Compared with the null-Ad(5) group, higher expression of human HGF was observed in the myocardium in the Ad(5)-HGF group (109.3+/-7.8 vs 6.2+/-2.6, t=30.685, P<0.01). The left ventricular ejection fraction was higher in the Ad(5)-HGF group than in the null-Ad(5) group (43.9+/-4.3 vs 30.4+/-2.8, t=6.514, P<0.01). From the 4th week to the 7th week after operation, left ventricular end systolic volume (42.1+/-3.0 vs 31.0+/-4.9, t=12.800, P<0.01) and left ventricula...Continue Reading

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