相关实验视频

Updated: Jul 24, 2025

Harnessing the Power of MicroRNA Cargoes in Small Extracellular Vesicles Released from Fresh-Frozen Human Brain Sections

Harnessing the Power of MicroRNA Cargoes in Small Extracellular Vesicles Released from Fresh-Frozen Human Brain Sections

Published on: November 8, 2024

阿尔茨海默病细胞外囊中的微RNAs

Wanran Li¹, Yun Zheng²

¹State Key Laboratory of Primate Biomedical Research, Institute of Primate Translational Medicine, Kunming University of Science and Technology, Kunming 650500, China.

|July 6, 2023

概括

阿尔茨海默病 (AD) 研究强调了细胞外囊泡 (EV) 中的微RNA (miRNA) 作为潜在的诊断生物标志物. 特定的miRNA显示出对诊断和治疗这种神经退行性疾病的希望.

科学领域:

神经科学是一个神经科学.
遗传学遗传学是一个
生物化学生化学

背景情况:

阿尔茨海默病 (AD) 影响全球超过5500万,其特点是认知能力下降,病理不清楚,治疗方法有限.
微RNAs (miRNAs) 涉及AD病变发生,并具有诊断和治疗的潜力.
体液中的细胞外囊泡 (EV) 含有参与细胞间通信的miRNA,为生物标志物发现提供了一个来源.

研究的目的:

从阿尔茨海默病患者的EV中审查失调的miRNAs.
评估EV衍生的miRNAs在AD中的功能和应用.
为了将EV miRNA与大脑组织中的EV miRNA进行比较,以获得全面的AD miRNA景观.

主要方法:

从AD患者的各种体液中获得的EV中的失调miRNAs的系统审查.
在AD脑组织中发现的EVmiRNAs与miRNAs的比较分析.
在AD模型中对已识别的miRNAs进行诊断和治疗潜力的评估.

主要成果:

特定的miRNAs,包括miR-125b-5p和miR-132-3p,在AD脑组织和EV中显示出差异性表达,表明诊断价值.
miR-9-5p在EV和大脑组织中失调,并在临床前AD模型中显示出治疗潜力.
来自EV的miRNA为非侵入性AD诊断和向性治疗开发提供了一个有希望的途径.

结论:

EV衍生的miRNAs代表了阿尔茨海默病诊断的有价值的生物标志物.
miR-9-5p显示出作为阿尔茨海默病治疗点的潜力.
对EV miRNA的进一步研究可以促进AD诊断和治疗.

关键词:

阿尔茨海默氏症是阿尔茨海默氏症的一种疾病.血液血液血液血液血液脑子脑子脑子大脑大脑脊髓液中的脑脊液.细胞外囊泡中的细胞外囊泡.这是一个微型RNA.

更多相关视频

Enrichment of Astrocyte-Derived Extracellular Vesicles from Human Plasma

Enrichment of Astrocyte-Derived Extracellular Vesicles from Human Plasma

Published on: August 3, 2022

Uptake of Fluorescent Labeled Small Extracellular Vesicles In Vitro and in Spinal Cord

Uptake of Fluorescent Labeled Small Extracellular Vesicles In Vitro and in Spinal Cord

Published on: May 23, 2021

相关概念视频

Alzheimer's Disease: Overview

Alzheimer's Disease: Overview

Alzheimer's Disease (AD) is a continually advancing neurodegenerative disorder, distinguished by escalating memory loss, cognitive dysfunction, and dementia. The disease unfolds in three stages: preclinical, mild cognitive impairment (MCI), and dementia. Its onset is insidious, and the progression gradual, with the cause not well explained by other disorders.
The clinical diagnosis of AD hinges on the presence of memory and other cognitive impairments. Biomarkers, such as changes in Aβ...

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...