Identification of microRNAs associated with abdominal aortic aneurysms and peripheral arterial disease

被引：68

作者：

Stather, P. W. ^{[1
]}

Sylvius, N. ^{[2
]}

Sidloff, D. A. ^{[1
]}

Dattani, N. ^{[1
]}

Verissimo, A. ^{[1
]}

Wild, J. B. ^{[1
]}

Butt, H. Z. ^{[1
]}

Choke, E. ^{[1
]}

Sayers, R. D. ^{[1
]}

Bown, M. J. ^{[1
,3
]}

机构：

[1] Univ Leicester, Dept Cardiovasc Sci, Leicester LE2 7LX, Leics, England

[2] Univ Leicester, Dept Genet, Leicester LE2 7LX, Leics, England

[3] Univ Leicester, Natl Inst Hlth Res, Leicester LE2 7LX, Leics, England

来源：

BRITISH JOURNAL OF SURGERY | 2015年 / 102卷 / 07期

关键词：

SEQUENCE VARIANT; METAANALYSIS; GROWTH;

D O I：

10.1002/bjs.9802

中图分类号：

R61 [外科手术学];

学科分类号：

100210 [外科学];

摘要：

BackgroundMicroRNAs are crucial in the regulation of cardiovascular disease and represent potential therapeutic targets to decrease abdominal aortic aneurysm (AAA) expansion. The aim of this study was to identify circulating microRNAs associated with AAA. MethodsSome 754 microRNAs in whole-blood samples from 15 men with an AAA and ten control subjects were quantified using quantitative reverse transcriptase-PCR. MicroRNAs demonstrating a significant association with AAA were validated in peripheral blood and plasma samples of men in the following groups (40 in each): healthy controls, controls with peripheral arterial disease (PAD), men with a small AAA (30-54mm), those with a large AAA (over 54mm), and those following AAA repair. MicroRNA expression was also assessed in aortic tissue. ResultsTwenty-nine differentially expressed microRNAs were identified in the discovery study. Validation study revealed that let-7e (fold change (FC) -180; P = 0001), miR-15a (FC -224; P < 0001) and miR-196b (FC -226; P < 0001) were downregulated in peripheral blood from patients with an AAA, and miR-411 was upregulated (FC 590; P = 0001). miR-196b was also downregulated in plasma from the same individuals (FC -375; P = 0029). The same miRNAs were similarly expressed differentially in patients with PAD compared with healthy controls. Validated and predicted microRNA targets identified through miRWalk revealed that these miRNAs were all regulators of AAA-related genes (vascular cell adhesion molecule 1, intercellular cell adhesion molecule 1, DAB2 interacting protein, 1-antitrypsin, C-reactive protein, interleukin 6, osteoprotegerin, methylenetetrahydrofolate reductase, tumour necrosis factor ). ConclusionIn this study, circulating levels of let-7e, miR-15a, miR-196b and miR-411 were differentially expressed in men with an AAA compared with healthy controls, but also differentially expressed in men with PAD. Modulation of these miRNAs and their target genes may represent a new therapeutic pathway to affect the progression of AAA and atherosclerosis. AAA and PAD similar

引用

页码：755 / 766

页数：12

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