Reliable measurements of extracellular vesicles by clinical flow cytometry.

Reliable measurements of extracellular vesicles by clinical flow cytometry.
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临床流式细胞术可靠测量细胞外囊泡。

DOI:
10.1111/aji.13350
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发表时间:
2021-03
期刊:
American journal of reproductive immunology (New York, N.Y. : 1989)
影响因子:
--
通讯作者:
van der Pol E
van der Pol E
中科院分区:
其他
文献类型:
--
作者:
Kuiper M;van de Nes A;Nieuwland R;Varga Z;van der Pol E

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细胞外囊泡(EV)是存在于所有体液中的具有磷脂膜的细胞衍生颗粒。由于EV特性在健康和疾病中会发生变化,因此EV具有成为诊断、预后或监测疾病的生物标志物的极好潜力。唯一能够在几分钟内检测,大小和表型百万EV的技术是(临床)流式细胞术。流式细胞仪测量单个EV的光散射和荧光信号。虽然这些信号包含关于电动汽车的存在和组成的有价值的信息,但这些信号以任意单位表示,这使得仪器和实验室之间无法比较测量结果。此外,样品来源、制备和分析中的非预期和未记录的变化导致测得EV浓度的数量级变化。在这里,我们将解释EV流式细胞术的基础知识,挑战和常见的误解。此外,我们还概述了最近的标准化举措,这是比较临床数据的先决条件,因此也是EV临床生物标志物探索的先决条件。
Extracellular vesicles (EVs) are cell‐derived particles with a phospholipid membrane present in all body fluids. Because EV properties change in health and disease, EVs have excellent potential to become biomarkers for diagnosis, prognosis, or monitoring of disease. The only technique capable of detecting, sizing, and phenotyping a million of EVs within minutes is (clinical) flow cytometry. A flow cytometer measures light scattering and fluorescence signals of single EVs. Although these signals contain valuable information about the presence and composition of EVs, the signals are expressed in arbitrary units, which make the comparison of measurement results impossible between instruments and laboratories. Additionally, unintended and undocumented variations in the source, preparation, and analysis of the sample lead to orders of magnitude variations in the measured EV concentrations. Here, we will explain the basics, challenges, and common misconceptions of EV flow cytometry. In addition, we provide an overview of recent standardization initiatives, which are a prerequisite for comparison of clinical data and thus for clinical biomarker exploration of EVs.
DOI: 10.1373/clinchem.2017.278978
发表时间: 2018-04-01
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影响因子: 9.3
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