Circulating Exosomal miRNAs as Novel Biomarkers Perform Superior Diagnostic Efficiency Compared With Plasma miRNAs for Large-Artery Atherosclerosis Stroke

被引:15
|
作者
Niu, Mengying [1 ]
Li, Hong [1 ]
Li, Xu [2 ]
Yan, Xiaoqian [3 ]
Ma, Aijun [1 ]
Pan, Xudong [1 ,2 ]
Zhu, Xiaoyan [3 ]
机构
[1] Qingdao Univ, Affiliated Hosp, Dept Neurol, Qingdao, Peoples R China
[2] Qingdao Univ, Affiliated Hosp, Inst Cerebrovasc Dis, Qingdao, Peoples R China
[3] Qingdao Univ, Affiliated Hosp, Dept Crit Care Med, Qingdao, Peoples R China
关键词
ischemic stroke; biomarkers; exosomes; miRNA; atherosclerosis; ACUTE ISCHEMIC-STROKE; INFLAMMATION; PROGRESSION; PREDICTION; CANCER; BRAIN;
D O I
10.3389/fphar.2021.791644
中图分类号
R9 [药学];
学科分类号
1007 ;
摘要
Recently, exosomal miRNAs have been reported to be associated with some diseases, and these miRNAs can be used for diagnosis and treatment. However, diagnostic biomarkers of exosomal miRNAs for ischemic stroke have rarely been studied. In the present study, we aimed to identify exosomal miRNAs that are associated with large-artery atherosclerosis (LAA) stroke, the most common subtype of ischemic stroke; to further verify their diagnostic efficiency; and to obtain promising biomarkers. High-throughput sequencing was performed on samples from 10 subjects. Quantitative real-time polymerase chain reaction (qRT-PCR) was performed on exosomes and plasma in the discovery phase (66 subjects in total) and the validation phase (520 subjects in total). We identified 5 candidate differentially expressed miRNAs (miR-369-3p, miR-493-3p, miR-379-5p, miR-1296-5p, and miR-1277-5p) in the discovery phase according to their biological functions, 4 of which (miR-369-3p, miR-493-3p, miR-379-5p, and miR-1296-5p) were confirmed in the validation phase. These four exosomal miRNAs could be used to distinguish LAA samples from small artery occlusion (SAO) samples, LAA samples from atherosclerosis (AS) samples, and LAA samples from control samples and were superior to plasma miRNAs. In addition, composite biomarkers achieved higher area under the curve (AUC) values than single biomarkers. According to our analysis, the expression levels of exosomal miR-493-3p and miR-1296-5p were negatively correlated with the National Institutes of Health Stroke Scale (NIHSS) score. The four identified exosomal miRNAs are promising biomarkers for the diagnosis of LAA stroke, and their diagnostic efficiency is superior to that of their counterparts in plasma.
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页数:14
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