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Int J Cardiol. 2009 Jun 26;135(2):245-8. doi: 10.1016/j.ijcard.2008.02.009. Epub 2008 Jun 30.

HVJ-AVE liposome-mediated Tissue Factor Pathway Inhibitor (TFPI) gene transfer with recombinant TFPI (rTFPI) irrigation attenuates restenosis in atherosclerotic arteries.


In this study, we investigate whether the combination of HVJ-AVE liposome-mediated TFPI gene transfer and recombinant TFPI (rTFPI) irrigation would reduce restenosis safely and more effectively. The results indicated that at 4 weeks after angioplasty, the MLD, EELA, IELA and LA of TFPI group and rTFPI group were markedly greater than those of the control groups, and those in the combination group were even greater. The mean IA, I/M, and the percentage of stenosis in TFPI gene group and rTFPI group were significantly reduced compared with control groups, and those in the combination group were even further reduced. Thrombosis in the TFPI gene group, rTFPI group and combination group was significantly reduced compared with the other control groups. The systemic coagulation status of treated animals was not significantly changed and no toxicity was observed in each group. So combination of TFPI gene transfer using HVJ-AVE liposomes and rTFPI irrigation could inhibit thrombosis and neointimal hyperplasia, and attenuate vascular remodeling and luminal stenosis more effectively than using each method alone. The combination method may be a more effective and safe strategy for the prevention of restenosis after angioplasty in humans.

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