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特定识别和敏感量化mRNA拼接变体通过单联结依赖循环介导的同热放大

Mai Zhang¹, Hui Wang¹, Jun Han²

¹Beijing Key Laboratory for Bioengineering and Sensing Technology, School of Chemistry and Biological Engineering, University of Science and Technology Beijing, 30 Xueyuan Road, Haidian District, Beijing 100083, China. winscavin@ustb.edu.cn.

|October 11, 2023

概括

我们开发了一种单结合-LAMP方法,用于敏感的mRNA拼接变异量化. 该技术可以在90分钟内准确地检测复杂样品中的低丰度拼接变体.

科学领域:

分子生物学分子生物学
基因组学就是基因组学.
生物技术是生物技术.

背景情况:

准确量化mRNA拼接变体对于理解RNA拼接调节,转录组功能和疾病诊断至关重要.
拼接变体的高丰度范围和序列同质性对敏感和选择性检测提出了重大挑战.
现有的方法经常在敏感性,选择性和吞吐量方面扎,用于拼接变体分析.

研究的目的:

开发一种新的,高度敏感和选择性的方法来量化mRNA替代拼接变体.
克服现有技术的局限性,以检测具有广泛丰度范围和高序列同质性的拼接变体.
为了在复杂的生物样本中提供一个快速的,单一的测试,用于拼接变异分析.

主要方法:

开发了一种单联结介导的同热放大 (LAMP) 试验 (单联结-LAMP).
利用两个拼接接口特定的茎环DNA探针进行基于结的识别.
集成的探针连接与循环介导同热放大 (LAMP) 进行信号放大和检测.

主要成果:

一联结-LAMP方法实现了mRNA拼接变体的特定检测,低至100aM度.
证明了高选择性,没有观察到任何不特定的信号.
在至少六个数量级的动态范围内的量化拼接变量.
在90分钟内成功应用了该方法,在复杂的生物样本中准确量化拼接变体.

结论:

一联结-LAMP试验是一种多功能和实用的工具,用于对mRNA拼接变体的敏感和准确量化.
这种方法在敏感性,选择性,速度和易用性方面为拼接变体研究提供了显著的优势.
为RNA拼接,基因表达和分子诊断领域的研究提供了有价值的新方法.

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