Guangxi Key Laboratory for Preclinical and Translational Research on Bone and Joint Degenerative Diseases, Affiliated Hospital of Youjiang Medical University for Nationalities, Baise, Guangxi, 533000, China.
Key Laboratory of Research on Prevention and Control of High Incidence Diseases in Western Guangxi, Youjiang Medical University for Nationalities, Baise, Guangxi, 533000, China.
Anal Chim Acta. 2024 Jun 8;1307:342641. doi: 10.1016/j.aca.2024.342641. Epub 2024 Apr 21.
The article details a groundbreaking platform for detecting microRNAs (miRNAs), crucial biomolecules involved in gene regulation and linked to various diseases. This innovative platform combines the CRISPR-Cas13a system's precise ability to specifically target and cleave RNA molecules with the amplification capabilities of the hybridization chain reaction (HCR). HCR aids in signal enhancement by creating branched DNA structures. Additionally, the platform employs electrochemiluminescence (ECL) for detection, noted for its high sensitivity and low background noise, making it particularly effective. A key application of this technology is in the detection of miR-17, a biomarker associated with multiple cancer types. It exhibits remarkable detection capabilities, characterized by low detection limits (14.38 aM) and high specificity. Furthermore, the platform's ability to distinguish between similar miRNA sequences and accurately quantify miR-17 in cell lysates underscores its significant potential in clinical and biomedical fields. This combination of precise targeting, signal amplification, and sensitive detection positions the platform as a powerful tool for miRNA analysis in medical diagnostics and research.
本文详细介绍了一个用于检测 microRNAs (miRNAs) 的突破性平台，miRNAs 是参与基因调控并与各种疾病相关的关键生物分子。该创新平台结合了 CRISPR-Cas13a 系统精确靶向和切割 RNA 分子的能力以及杂交链式反应 (HCR) 的扩增能力。HCR 通过创建分支 DNA 结构来增强信号。此外，该平台还采用电化学发光 (ECL) 进行检测，其具有高灵敏度和低背景噪声的特点，因此特别有效。该技术的一个关键应用是检测 miR-17，它是与多种癌症类型相关的生物标志物。该平台具有出色的检测能力，其检测限低（14.38 aM），特异性高。此外，该平台能够区分相似的 miRNA 序列，并准确量化细胞裂解物中的 miR-17，这突显了其在临床和生物医学领域的巨大潜力。这种精确靶向、信号放大和敏感检测的结合，使该平台成为医学诊断和研究中 miRNA 分析的有力工具。
