Gene manipulated peritoneal cell patch repairs infarcted myocardium

被引：30

作者：

Huang, Wei ^{[1
,2
]}

Zhang, Dongsheng ^{[1
]}

Millard, Ronald W. ^{[3
]}

Wang, Tao ^{[1
]}

Zhao, Tiemin ^{[1
]}

Fan, Guo-Chang ^{[3
]}

Ashraf, Atif ^{[1
]}

Xu, Meifeng ^{[1
]}

Ashraf, Muhammad ^{[1
]}

Wang, Yigang ^{[1
]}

机构：

[1] Univ Cincinnati, Med Ctr, Dept Pathol & Lab Med, Coll Med, Cincinnati, OH 45267 USA

[2] So Med Univ, Med Res Ctr, Guangdong Gen Hosp, Guangdong Acad Med Sci, Guangzhou, Guangdong, Peoples R China

[3] Univ Cincinnati, Med Ctr, Dept Pharmacol & Cell Biophys, Cardiovasc Ctr Excellence,Coll Med, Cincinnati, OH 45267 USA

来源：

JOURNAL OF MOLECULAR AND CELLULAR CARDIOLOGY | 2010年 / 48卷 / 04期

基金：

美国国家卫生研究院;

关键词：

MSC; CXCR4; Peritoneal; Tissue engineering; Myocardial infarction; MESENCHYMAL STEM-CELLS; BONE-MARROW; HEART; ANGIOGENESIS; SURVIVAL; CXCR4; MYOANGIOGENESIS; OMENTOPEXY; EXPRESSION; PROTECTION;

D O I：

10.1016/j.yjmcc.2009.10.032

中图分类号：

R5 [内科学];

学科分类号：

1002 ; 100201 ;

摘要：

A gene manipulated cell patch using a homologous peritoneum substrate was developed and applied after myocardial infarction to repair scarred myocardium. We genetically engineered male rat mesenchymal stem cells (MSC) using adenoviral transduction to over-express CXCR4/green fluorescent protein (GFP) (MSCCXCR4) or MSCNull or siRNA targeting CXCR4 (MSCsiRNA). Gene expression was studied by real-time quantitative PCR (qPCR) and enzyme-linked immunosorbent assay (ELISA). Cells were cultured on excised peritoneum for 9 days. Two weeks after left anterior descending (LAD) coronary artery ligation in female hearts, the peritoneum patch was applied over the scarred myocardium, cell side down. Efficacy of engraftment was determined by presence of GFP positive cells. One month after cell implantation, echocardiography was performed and hearts were harvested for histological analysis. Left ventricle (LV) fibrosis, LV anterior wall thickness (AWT) and blood vessel density at the margins of the graft were measured. There was significant up-regulation of the chemokines in the MSCCXCR4 group cultured under normoxic conditions when compared to the MSCNull group and a further increase was observed after exposure to hypoxia. One month after cell transplantation with the peritoneum patch, substantial numbers of GFP-positive cells were observed in and around the infarcted myocardium in MSCCXCR4 group. LV AWT, LV fibrosis and LV function were significantly improved in the MSCCXCR4 group as compared to these same variables in the MSCNull control. These salutary effects were absent in MSCsiRNA group. The gene manipulated MSC-seeded peritoneum patch promotes tissue nutrition (angiogenesis), reduces myocardial remodeling, and enhances heart function after myocardial infarction. (c) 2009 Published by Elsevier Ltd.

引用

页码：702 / 712

页数：11

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