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循环中微RNA和神经退行症生物标志物之间的交叉

Amber Yaqub¹, Rima Mustafa², M Arfan Ikram¹

¹Department of Epidemiology, Erasmus University Medical Center, Dr. Molewaterplein 40, Rotterdam, 3015 GD, the Netherlands.

Alzheimer's research & therapy

|July 31, 2025

概括

在痴呆症发作之前,循环的microRNAs (miRNAs) 与神经退行性标记物如tau和粉样β有关. 所有标记物中共有12种特定的miRNA,提供了潜在的诊断和治疗见解.

科学领域:

神经科学是一个神经科学.
遗传学是一个遗传学.
生物化学生物化学

背景情况:

微RNA (miRNA) 是小型非编码RNA,可以调节基因表达.
循环miRNAs与临床前痴呆症生物标志物之间的关联仍然不清楚.

研究的目的:

在没有痴呆症的个体中研究血miRNA和神经退行性标记物 (神经丝光链 (NfL),总tau (t-tau),粉样β (Aβ)) 之间的关系.
确定与这些生物标记物相关的特定miRNA,并探索它们在痴呆症中的潜在作用.

主要方法:

从1959年没有痴呆症的参与者的血样本分析 (罗德丹研究).
使用HTG EdgeSeq全转录组检测测591个循环miRNA的测量.
使用Simoa试验对t-tau,NfL,Aβ-40和Aβ-42进行量化.
使用线性回归和弹性净规范化模型进行统计分析.

主要成果:

在众多miRNA与t-tau,NfL,Aβ-40和Aβ-42之间发现了显著的关联.
十二种miRNA与所有四种神经退行生物标志物一致相关.
在化分析揭示了这些共享的miRNAs在大脑区域的基因,并与Notch信号传递和APP等途径相关.

结论:

循环中的miRNAs与神经退行症的临床前标志物有显著的关联.
这12种常见的miRNA可以作为痴呆风险和进展的有价值指标.
这些发现表明了针对痴呆症中miRNA途径的新型诊断或治疗策略的潜力.

关键词:

粉样蛋白β是什么粉样蛋白β是什么神经退行发生神经退行.神经纤维光电链的链条塔乌塔乌 (Tau Tau) 是一个这是一个微型RNA.

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相关概念视频

MicroRNAs

MicroRNAs

MicroRNA (miRNA) are short, regulatory RNA transcribed from introns—non-coding regions of a gene—or intergenic regions—stretches of DNA present between genes. Several processing steps are required to form biologically active, mature miRNA. The initial transcript, called primary miRNA (pri-mRNA), base-pairs with itself forming a stem-loop structure. Within the nucleus, an endonuclease enzyme, called Drosha, shortens the stem-loop structure into hairpin-shaped pre-miRNA. After...