基于纳米探针的光学编码多重复合策略用于MicroRNA分析
Sungi Kim1, Jeong-Eun Park1, Woosung Hwang1
1Department of Chemistry, Seoul National University , Seoul 08826, South Korea.
Journal of the American Chemical Society
|February 10, 2017
概括
这项研究引入了一种新的多重分子检测策略,使用光动力学编码的纳米探针进行同时定量微RNA分析. 该测试可快速和精确地检测多个microRNA目标,有助于癌症诊断.
科学领域:
- 生物技术
- 纳米技术
- 分子生物学
背景情况:
- 对相互作用分子的多重分析对于理解生物系统至关重要,特别是在细胞生物学,生物传感和癌症诊断中进行微RNA (miRNA) 分析.
- 准确的癌症诊断需要同时检测多个miRNA序列.
研究的目的:
- 开发一个多重分子检测策略,以可靠和定量地对多个microRNA目标进行分析.
- 展示开发的试验在癌症诊断中的潜在应用能力.
主要方法:
- 使用光动力学 (OK) 编码的纳米探针 (NP) 具有明确的光学信号 (红色,绿色,蓝色),与支持的脂质双层 (SLB) 连接.
- 使用暗场显微镜 (DFM) 进行现场单颗粒监测和对组合NP组件进行规范化的RGB分析.
- 开发了OK-nanoprobe-lipid双层 (OK-NLB) 试验,用于区分和量化多个miRNA目标.
主要成果:
- 在单个样本中,OK-NLB测定成功区分和量化了9个不同的miRNA目标.
- 在1小时内实现多个miRNA目标的同时检测,具有高量化和特异性.
- 使用单基不匹配实验和HeLa细胞提取的总RNA验证了试验结果,结果与定量逆转录聚合酶链反应 (qRT-PCR) 相似.
结论:
- 基于OK-NP的测定为高灵敏度和特异性的多重分子检测提供了强大的工具.
- 这种测试对推进基于miRNA的诊断具有重大潜力,特别是在早期癌症检测方面.
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