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中华诊断学电子杂志 ›› 2017, Vol. 05 ›› Issue (02) : 80 -85. doi: 10.3877/cma.j.issn.2095-655X.2017.02.002

所属专题: 文献

心脑血管疾病专题

miRNA-126在冠状动脉支架内再狭窄中的表达及意义
魏广和1, 宋峰2, 张韶辉1, 刘立新1,(), 苏强3, 王建军1, 高振才1, 张淑芳3   
  1. 1. 272029 济宁医学院附属医院心内三科;山东省心脏疾病诊疗重点实验室
    2. 272000 济宁市疾病预防控制中心
    3. 272029 济宁医学院附属医院心内三科
  • 收稿日期:2017-03-07 出版日期:2017-05-26
  • 通信作者: 刘立新
  • 基金资助:
    山东省医药卫生科技发展项目(2014WS0515); 济宁医学院青年基金项目(JYQ14KJ37)

Expression and significance of miRNA-126 in patients with coronary in-stent restenosis

Guanghe Wei1, Feng Song2, Shaohui Zhang1, Lixin Liu1,(), Qiang Su3, Jianjun Wang1, Zhencai Gao1, Shufang Zhang3   

  1. 1. Department of Cardiology, Affiliated Hospital of Jining Medical University, Jining 272029, China;Shangdong Provinicial Key Laboratory of Cardiac Diagnosis and Treatment, Affiliated Hospital of Jining Medical University, Jining 272029, China
    2. Disease Prevention and Control Center of Jining City, Jining 272000, China
    3. Department of Cardiology, Affiliated Hospital of Jining Medical University, Jining 272029, China
  • Received:2017-03-07 Published:2017-05-26
  • Corresponding author: Lixin Liu
  • About author:
    Corresponding author: Liu Lixin, Email:
引用本文:

魏广和, 宋峰, 张韶辉, 刘立新, 苏强, 王建军, 高振才, 张淑芳. miRNA-126在冠状动脉支架内再狭窄中的表达及意义[J]. 中华诊断学电子杂志, 2017, 05(02): 80-85.

Guanghe Wei, Feng Song, Shaohui Zhang, Lixin Liu, Qiang Su, Jianjun Wang, Zhencai Gao, Shufang Zhang. Expression and significance of miRNA-126 in patients with coronary in-stent restenosis[J]. Chinese Journal of Diagnostics(Electronic Edition), 2017, 05(02): 80-85.

目的

观察miR-126在冠状动脉支架内再狭窄(ISR)患者外周血中的表达并评估其意义。

方法

收集2014年6月至2015年12月在济宁医学院附属医院心内科住院的26例支架内再狭窄患者为ISR组,收集同期未发生支架内再狭窄的患者40例,为non-ISR组。分别观察各组的临床资料和冠脉支架手术资料,用实时荧光定量聚合酶链反应(Real-time PCR)检测miR-126表达,比较两组间的miR-126表达差异;通过ROC曲线评估miR-126对冠脉支架术后患者发生ISR的诊断价值。生物信息学预测miR-126的靶基因,并对这些靶基因进行功能分析和富集。

结果

ISR组与non-ISR组在冠脉病变特点和手术特点比较:支架直径[(3.21±0.88)mm,(3.15±0.67)mm]、支架长度[(20.83±4.92)mm,(21.02±4.75)mm]、支架释放最大压力[(14.17±9.1)atm,(13.97±6.26)atm]两组间均差异无统计学意义(t=0.97,-1.04,0.87;P>0.05)。miR-126在ISR组中的表达量(0.63±0.38)低于non-ISR组(1.36±1.03),差异有统计学意义(t=-5.46,P<0.01)。ROC曲线分析基线miR-126对冠脉支架术后患者12~18个月时发生ISR的曲线下面积(AUC)为0.791(95%CI 0.671~0.912,P<0.01)。通过数据库预测出miR-126的靶基因,对这些靶基因进行基因功能富集,发现其主要作用方向是:血管内皮生长因子信号通路、细胞外基质、细胞增殖调节等。

结论

miR-126下降的冠脉支架患者在术后随访期间发生ISR的危险度增加,miR-126是冠脉支架患者发生ISR的预测因素。miR-126的生物功能主要集中于血管内皮生长因子信号通路方向,这可能是其参与ISR过程的一个途径。

Objective

To observe the differences of miR-126 expression in peripheral blood of patients with coronary in-stent restenosis (ISR) and evaluate its significance.

Methods

Twenty-six cases of patients with ISR in the Cardiology of Affiliated Hospital of Jining Medical University from June 2014 to December 2015 were collected as ISR group, 40 patients without ISR as non-ISR group.The clinical data and coronary stenting data were calculated.The differences of miR-126 expression levels which were detected by real-time PCR were compared by t test between the two groups.The ROC curve was used to analyze the predicted value of miR-126 on ISR after coronary stenting.Bioinformatics predicted the target genes of miR-126 and performed functional analysis and enrichment of these target genes.The main biological functions of miR-126 and its possible mechanism in ISR were discussed.

Results

Comparison between the ISR and non-ISR group in terms of coronary lesion characteristics and surgical characteristics: there were no significant differences in the diameter of the stent [(3.21±0.88)mm, (3.15±0.67)mm], the length of the stent [(20.83±4.92)mm, (21.02±4.75)mm] and the maximum pressure of the stent release [(14.17±9.1)atm, (13.97±6.26)atm] (t=0.97, -1.04, 0.87; P>0.05). The expression of miR-126 in ISR group (0.63±0.38) was lower than that in non-ISR (1.39±1.03), the difference was statistically significant (t=-5.46, P<0.01). AUC of baseline miR-126 on the coronary stent after 12-18 months of ISR was 0.791 (95% CI 0.671 ~ 0.912, P<0.01). The targets gene of miR-126 were predicted by the database, and the function of these target genes was enriched.Its main directions were vascular endothelial growth factor signaling pathway, extracellular matrix and cell proliferation regulation.

Conclusions

miR-126 is associated with an increased risk of ISR during postoperative follow-up, and it is a predictor of ISR in patients with coronary stent.The biological function of miR-126 is mainly focused on the direction of vascular endothelial growth factor signaling pathway, which may be a way to participate in the ISR process.

表1 两组患者的基线资料比较
图1 miR-126对ISR的预测能力评价
图2 hsa-miR-126-3p的靶基因合集
表2 hsa-miR-126-3p的靶基因预测结果
图3 miR-126靶基因细胞组分定位GO分析结果
图4 miR-126靶基因分子功能GO分析结果
图5 miR-126靶基因生物学过程GO分析结果
图6 miR-126靶基因David分析结果
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