摘要
目的通过基因芯片筛选并分析急性ST段抬高型心肌梗死(STEMI)患者冠状动脉内微粒与外周血微粒中microRNA的表达差异,为进一步研究微粒在急性心肌梗死发病中的作用提供线索。方法收集STEMI行血栓抽吸患者的冠状动脉内抽吸血样及外周血样,运用超速离心法分离STEMI患者冠状动脉内与外周血样中的微粒;通过基因芯片技术对微粒中的microRNA进行测序,构建冠状动脉内血样与外周血样的微粒的microRNA差异表达谱,并对其进行功能学分析与预测。结果 STEMI患者冠状动脉内与外周血中微粒所含有的microRNA有明显差异。通过构建microRNA差异表达谱,找到了307个microRNA具有差异性表达,表达上调221个,下调86个。结论STEMI患者冠状动脉内与外周血微粒所含有的microRNA表达具有显著性差异,其中有49个与心血管疾病密切相关,可以作为进一步研究的靶点。
Objective To investigate the diff erential expression of microRNA in microparticles from coronary blood and peripheral blood in patients with acute myocardial infarction, and to provide clues for further study on the role of myocardial in the pathogenesis of myocardial infarction. Methods Coronary and peripheral blood samples were collected from patients with acute myocardial infarction undergoing thrombus aspiration. Microparticles from coronary and peripheral blood samples were isolated by centrifugation and gene chips were used to sequence the microRNA from the microparticles in the two groups. The diff erences in microRNA expression were identifi ed between two groups and the function of these microRNA were analyzed. Results There were signifi cant diff erences between the microRNA in the microparticles from the coronary blood and peripheral blood in patients with acute myocardial infarction. By constructing expression profi les, 307 diff erentially expressed microRNA were found, with 221 of them were up regulated and 86 of them were down regulated. Conclusion There is signifi cant diff erence between the expression of microRNA in microparticles from the coronary blood and the peripheral blood of patients with acute myocardial infarction forty nine of them are closely related to cardiovascular disease, which can be used as the target of further research.
出处
《中国介入心脏病学杂志》
2018年第1期41-47,共7页
Chinese Journal of Interventional Cardiology
基金
国家自然科学基金(81670323)
