冠心病患者循环内皮祖细胞变化及功能的研究
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(1.深圳南山人民医院心血管内科,广东省深圳市 518067;2.深圳沙井人民医院心血管内科, 广东省深圳市 518104;3.深圳宝安人民医院科教科,广东省深圳市 518102)

作者简介:

方叶青,博士,副教授,研究方向为心血管疾病的干细胞治疗,E-mail为fangyeqing2005@hotmail.com。通信作者张松荣,博士,统计师,研究方向为卫生统计,E-mail为zhangse168@126.com。

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广东省深圳市宝安区科技计划社会公益(医疗卫生类)项目(2012008)


Research on change and function of circulating endothelial progenitor cells in patients with coronary heart disease
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1.Cardiovascular Department, Shenzhen Nanshan People's Hospital, Shenzhen, Guangdong 518067, China;2.Cardiovascular Department, Shenzhen Shajing People's Hospital, Shenzhen, Guangdong 518104, China;3.Science and Education Management Department, Shenzhen Baoan People's Hospital, Shenzhen, Guangdong 518102, China)

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    摘要:

    目的 探讨冠心病患者外周血循环内皮祖细胞(EPC)变化及其纤溶、黏附和炎症因子表达。方法 选择冠心病患者57例(冠心病组)和对照组30例,提取EPC进行数量和细胞集落的比较。用酶联免疫吸附法和底物发光法检测EPC分泌组织型纤溶酶原激活物(tPA)和纤溶酶原激活物抑制剂(PAI)的浓度和活性。用反转录-聚合酶链反应(RT-PCR)检测EPC的tPA、PAI、血管细胞黏附分子1(VCAM-1)、细胞间黏附分子1(ICAM-1)、过氧化物酶体增殖因子活化受体γ(PPARγ)的mRNA表达水平。结果 冠心病组EPC数量较对照组明显减少(P<0.05),形成细胞集落数、细胞增殖能力也明显降低(P<0.05)。与对照组比较,冠心病组EPC分泌的tPA含量和活性明显下降(P<0.05),PAI含量和活性明显升高(P<0.01)。RT-PCR检测结果显示,与对照组比较,冠心病组EPC的tPA、PPARγ mRNA表达减弱,PAI、VCAM-1、ICAM-1 mRNA表达增强(P<0.05)。结论 冠心病患者外周血循环EPC数量减少,纤溶功能减低,黏附和炎症因子表达增强,其在冠心病发生发展中起到重要作用。

    Abstract:

    Aim To investigate the changes of peripheral circulating endothelial progenitor cells (EPCs) and fibrinolysis, adhesion and inflammatory factors expressions of EPCs in patients with coronary heart disease (CHD). Methods 57 patients with CHD (CHD group) and 30 cases with control (control group) were selected, and EPCs were extracted and compared in number and cell colony. Concentrations and activities of tissue-type plasminogen activator (tPA) and plasminogen activator inhibitor (PAI) secreted by EPCs were detected by enzyme-linked immunosorbent assay and substrate chemiluminescence methods. The mRNA expressions of tPA, PAI, vascular cell adhesion molecule-1 (VCAM-1), intercellular adhesion molecule-1 (ICAM-1) and peroxisome proliferator activated receptor γ (PPARγ) in EPCs were detected by reverse transcription-polymerase chain reaction (RT-PCR). Results The number of EPCs in CHD group was significantly lower than that in control group (P<0.05), the number of forming cell colony and the ability of cell proliferation were also significantly lower (P<0.05). Compared with the control group, the content and activity of tPA secreted by EPCs in CHD group decreased significantly (P<0.05), and the content and activity of PAI increased significantly (P<0.01). RT-PCR results showed that compared with the control group, the mRNA expressions of tPA and PPARγ in EPCs of CHD group decreased, while the mRNA expressions of PAI, VCAM-1 and ICAM-1 increased (P<0.05). Conclusion The decrease of EPCs in peripheral blood circulation, the reduction of fibrinolytic function and the increase of adhesion and inflammatory factor expression in patients with CHD play an important role in the occurrence and development of CHD.

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方叶青,谢培益,王磊,陈少源,艾文,方红城,张松荣.冠心病患者循环内皮祖细胞变化及功能的研究[J].中国动脉硬化杂志,2019,27(8):694~699.

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  • 收稿日期:2019-02-06
  • 最后修改日期:2019-05-14
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  • 在线发布日期: 2019-07-08