Assessment of myocardial blood perfusion improved by CD151 in a pig myocardial infarction model

• 来源期刊: 中国药理学报（英文版）
• 关键词: gene therapy CD151 neovascularization emission-computed NH3
• 年，卷（期）: 2009,（1）
• 页码范围: 70-77
• 页数: 8页
• 语种: 英文
• DOI: 10.1038/aps.2008.10

摘要

Aim: To appraise the efficacy of CD151-induced myocardial therapeutic angiogenesis in a pig myocardial infarction model. Methods: CD151 and anti-CD151 were constructed into the recombinant adeno-associated virus (rAAV) vector. All 26 pigs were subjected to coronary artery ligation or no surgery. Eight weeks after coronary artery ligation, the expression of CD151 was measured by Western blot and immunostaining. Capillary density was evaluated using immunostaining for yon Willebrand factor (vWF). 13N-labeled NH3 positron emission computed tomography ([13N]NH3 PET) was measured to assess regional myocardial perfusion and the defect area. Results: CD151 gene delivery could increase the expression of CD151 at protein level. Over-expression of CD151 increased the density of total capillaries in the ischemic myocardium, significantly improved the blood perfusion and reduced the de-fect area percentage. Conclusion: This study demonstrated that the rAAV-mediated CD151 gene delivery promoted efficient neovascularizafion and increased the blood perfusion after myocardial infarction in pigs.