High-throughput single-EV liquid biopsy: Rapid, simultaneous, and multiplexed detection of nucleic acids, proteins, and their combinations.

High-throughput single-EV liquid biopsy: Rapid, simultaneous, and multiplexed detection of nucleic acids, proteins, and their combinations.
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高通量单 EV 液体活检:快速、同步和多重检测核酸、蛋白质及其组合。

DOI:
10.1126/sciadv.abc1204
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发表时间:
2020-11
期刊:
影响因子:
13.6
通讯作者:
Bai C
Bai C
中科院分区:
综合性期刊1区
文献类型:
--
作者:
Zhou J;Wu Z;Hu J;Yang D;Chen X;Wang Q;Liu J;Dou M;Peng W;Wu Y;Wang W;Xie C;Wang M;Song Y;Zeng H;Bai C

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开发了一种用于细胞外囊泡高通量多重生物标志物检测的新系统。细胞外囊泡(ev)内/上的microrna (miRNAs)、mRNA和蛋白质是潜在的癌症生物标志物。在单个EV水平上同时检测多种生物标志物将极大地改善预后和/或诊断以及对EV表型、生物发生和功能的理解。在这里,我们介绍了一种高通量纳米生物芯片集成系统用于液体活检(HNCIB)系统,用于同时检测单个EV中的蛋白质和mRNA/miRNA。通过系统对照实验验证,HNCIB具有较高的信度、灵敏度和特异性。在一组34例肺腺癌(LUAD)患者和35例健康供体中,HNCIB检测到与健康供体相比,LUAD患者衍生的ev中程序性死亡配体1 mRNA和蛋白以及miR-21的表达上调。HNCIB具有样品需求量低(~90 μl)、检测时间快(~6 h)、通量高(每次检测384个样品)等特点,在ev的研究和临床应用中具有很大的潜力。
A novel system is developed for high-throughput multiplexed biomarker detection in single extracellular vesicles. MicroRNAs (miRNAs), mRNA, and proteins in/on extracellular vesicles (EVs) represent potential cancer biomarkers. Concurrent detection of multiple biomarkers at a single-EV level would greatly improve prognosis and/or diagnosis and understanding of EV phenotypes, biogenesis, and functions. Here, we introduced a High-throughput Nano-bio Chip Integrated System for Liquid Biopsy (HNCIB) system for simultaneous detection of proteins and mRNA/miRNA in a single EV. Validated through systematic control experiments, HNCIB showed high reliability, sensitivity, and specificity. In a panel of 34 patients with lung adenocarcinoma (LUAD) and 35 healthy donors, HNCIB detected an up-regulated expression of programmed death-ligand 1 mRNA and protein and miR-21 in EVs derived from patients with LUAD compared to those from healthy donors. HNCIB has low sample requirement (~90 μl), fast assay time (~6 hours), and high throughput (up to 384 samples per assay) and would have great potential in the study of EVs and their clinical applications.
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