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人血管内皮生长因子165基因联合间充质干细胞治疗对扩张型心肌病胶原重塑的影响
引用本文:于勤,朱宁,李倩晓,李晓菲,那荣妹,郑晓群,方唯一. 人血管内皮生长因子165基因联合间充质干细胞治疗对扩张型心肌病胶原重塑的影响[J]. 中国临床医学, 2011, 18(5): 587-590
作者姓名:于勤  朱宁  李倩晓  李晓菲  那荣妹  郑晓群  方唯一
作者单位:1. 大连大学附属中山医院心内科,辽宁大连,116001
2. 大连医科大学附属二院心内科,辽宁大连,116023
3. 大连大学附属中山医院,遵义医学院,辽宁大连 116001
4. 大连市中心医院心内科,辽宁大连,116023
5. 上海市胸科医院心内科,上海,200030
基金项目:辽宁省教育厅高等学校科研计划项目(编号:L2010023); 大连市科技局科研计划项目(编号:2007E21SF203)
摘    要:目的:探讨人血管内皮生长因子165基因(hVEGF165)联合间充质干细胞(mesenchyma1stemce11s,MSCs)治疗对扩张型心肌病胶原重塑的影响。方法:将40只扩张型心肌病(DCM)大鼠模型随机分为4组:PBS组、MSCs心肌移植联合基因治疗组(MSCs—GENE组)、MSCs心肌移植组(MSCs组)以及基因治疗组(GENE组)。心肌局部注射所构建MLC-2v/pIRES2-EG-FP-hVEGF165与MSCs,采用逆转录-聚合酶链反应(RT—PCR)检测I型、Ⅲ型胶原和转化生长因子-β(TGF-β)基因表达,蛋白免疫印迹(Westrenb1ot)检测hVEGF165蛋白表达。结果:PBS组、MSCs+GENE组、MSCs组以及GENE组的I型胶原PCR产物灰度比分别为(0.359±0.010)、(0.240±0.012)、(0.313±0.058)、(0.230±0.011);而Ⅲ型胶原分别为(0.831±0.011)、(0.842±0.015)、(0.917±0.058)、(0.688±0.015);TGF-β1分别为(0.548±0.067)、(0.370±0.012)、(0.561±0.014)、(0.369±0.098);MSCs+GENE组TGF-81与GENE组比较差异无统计学意义,但两者显著低于PBS组和MSCs组,提示TGF-β1表达下调;I型/III型胶原灰度比分别为(0.436±0.072)、(0.290±0.023)、(0.337±0.021)、(0.333±0.011),其中MSCs组与GENE组比较差异无统计学意义;MSCs组与GENE组的I型/III型胶原灰度比减低,2组比较差异无统计学意义,但MSCs—GENE组进-步使I型/III型胶原灰度比减低;TGF-β1表达分析结果显示,hVEGF165基因治疗较MSCs移植使TGF-β1表达下调的作用更显著。结论:MSCs移植与hVEGF165基因治疗有可能通过下调TGF-β1表达,降低I型/III胶原比值,增加心肌顺应性,减轻心肌胶原网络重塑而改善心功能。

关 键 词:人血管内皮生长因子165基因  胶原重塑  转化生长因子β1  间充质干细胞  基因治疗  扩张型心肌病

Collagen Remodeling Effect of Transplantation Mesenchymal Stem Cells with a Cardiac-Specific Expressing Human Vascular Endothelial Growth Factor-165 Gene in Dilated Cardiomyopathy Animal Model
YU Qin,ZHU Ning,LI Qianxiao,LI Xiaofei,NA Rongmei,ZHENG Xiaoqun,FANG Weiyi. Collagen Remodeling Effect of Transplantation Mesenchymal Stem Cells with a Cardiac-Specific Expressing Human Vascular Endothelial Growth Factor-165 Gene in Dilated Cardiomyopathy Animal Model[J]. Chinese Journal Of Clinical Medicine, 2011, 18(5): 587-590
Authors:YU Qin  ZHU Ning  LI Qianxiao  LI Xiaofei  NA Rongmei  ZHENG Xiaoqun  FANG Weiyi
Affiliation:YU Qin1 ZHU Ning2 LI Qianxiao3 LI Xiaofei3 NA Rongmei3 ZHENG Xiaoqun4 FANG Weiyi5 1.Department of Cardiology,Affiliated Zhongshan Hospital of Dalian University,Dalian 116001,China,2.Department of Cardiology,the second affiliated Hospital of Dalian Medical University,Dalian 116023,3.Department of Cardiology,Zunyi Medical University,4.Department of Cardiology,Dalian Central Hospital,5.Department of Cardiology,Shan...
Abstract:Objective:To investigate the collagen remodeling effect of transplantation mesenchymal stem cells(MSCs) combined with a cardiac-specific expressing human vascular endothelial growth factor-165(hVEGF165) gene in dilated cardiomyopathy(DCM) animal model.Methods: The bone marrow-derived mesenchymal stem cells of rat were isolated,cultured and expanded ex vivo.The characteristics of those cells were identified by flow cytomery.The subjects were divided into PBS group,MSCS transplantation group(MSCS),gene therap...
Keywords:Human vascular endothelial growth factor 165 gene  Collagen remodeling  Transforming growth factor β1 Mesenchymal stem cells  Gene therapy  Dilated cardiomyopathy
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