自动磁盘装置用于从癌症诊断中的液体活检中进行多重细胞外囊泡隔离和标记
Hyun-Kyung Woo1,2, Changhyun Kim3, Yoonjeong Choi1,2
1Center for Systems Biology, Massachusetts General Hospital Research Institute, Boston, MA, USA.
Nature biomedical engineering
|January 28, 2026
概括
一个新的自动化系统,SpinEx,从血液中分离出细胞外囊泡,用于癌症诊断. 这项技术提供了快速,准确的瘤检测和分类,改进了当前的手动方法.
科学领域:
- 生物医学工程 生物医学工程
- 临床诊断 临床诊断 临床诊断
- 分子生物学分子生物学
背景情况:
- 循环细胞外囊泡 (EVs) 显示出瘤诊断的前景.
- 目前的电动汽车隔离方法是手动的,耗时的,容易受到污染.
研究的目的:
- 开发一个自动化系统,SpinEx,用于从全血中快速隔离和多重免疫标记EVs.
- 评估SpinEx在癌症检测和分类的试点临床研究中的表现.
主要方法:
- SpinEx集成了磁盘染色学,心向流体转移和基于珠子的EV捕获与抗体标记.
- 该系统在不到75分钟的时间内处理150μl的全血,为16个蛋白质点进行丰富和标记EVs.
- 检测使用从标记EV捕获的微珠上捕获的双光信号,通过光流细胞计分析.
主要成果:
- SpinEx处理了221个血样本,用于对30个与EV相关的蛋白质进行多重分析.
- 由SpinEx处理的EVs以90%的准确性和97%的特异性将癌症与非癌症样本区分开来.
- 该系统以96%的准确率对5种瘤类型进行了分类.
结论:
- "SpinEx"可实现血液中的细胞外囊泡的自动化,多重处理.
- 这项技术可能有助于开发用于癌症检测和分类的临床可行测试.
- 自动化EV分析具有在瘤学中推进液体活检应用的潜力.
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