相关实验视频

Updated: Jan 9, 2026

Isolation of Cortical Microglia with Preserved Immunophenotype and Functionality From Murine Neonates

Isolation of Cortical Microglia with Preserved Immunophenotype and Functionality From Murine Neonates

Published on: January 30, 2014

细胞外微RNAs通过TLR8调节人类的微质功能

Hannah Weidling^1,2,3, Edyta Motta^1,2, Leonard D Kuhrt^2,3,4

¹Institute of Cell Biology and Neurobiology, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany.

Frontiers in immunology

|December 1, 2025

概括

中枢神经系统 (CNS) 疾病相关的microRNAs (miRNAs) 通过Toll-like受体8 (TLR8) 发出信号,以调节人类微质功能. 这些miRNAs调节神经炎症和神经细胞外生,为中枢神经系统疾病提供潜在的治疗点.

科学领域:

神经科学是一个神经科学.
免疫学免疫学免疫学
分子生物学分子生物学

背景情况:

微RNAs (miRNAs) 是大脑中的关键基因调节者,调节失调与中枢神经系统 (CNS) 疾病有关.
微RNA可以作为托尔类受体 (TLR) 的配体,影响免疫反应.

研究的目的:

研究中枢神经系统疾病相关的miRNAs作为人类微质细胞的信号分子.
确定托尔类受体 (TLRs) 在调解微质上miRNA效应中的作用.

主要方法:

机器学习识别了阿尔茨海默病 (AD) 和质瘤相关的miRNAs作为TLR7/TLR8连接体.
人类微状细胞 (iMGLs) 用于评估miRNA诱导的细胞因子释放,运动和细胞发生的变化.
用一种选择性TLR8抗剂 (CU-CPT9a) 来确认受体参与.

主要成果:

特定的miRNAs (miR-9-5p,miR-132-5p,等等) 的使用. 被确定为TLR7和TLR8的配体.
暴露于某些miRNAs调节了iMGL细胞因子的产生 (IL-6,TNF),运动性和细胞化.
在共同培养中,TLR8对抗消除了miRNA诱导的微质反应,细胞外miRNA减少了神经元长度.

结论:

与中枢神经系统疾病相关的miRNAs通过TLR8.8作为人类微质的信号分子起作用.
这些miRNAs调节微质功能和神经炎症反应,影响神经细胞外生长.

关键词:

阿尔茨海默病的疾病阿尔茨海默病的疾病.细胞外的微RNA.质瘤质瘤是一种人类微质细胞这就是 iPSC 的意义.微质的功能微质的功能干细胞是干细胞的组成部分.收费类受体 8 收费类受体

更多相关视频

Detection of MicroRNAs in Microglia by Real-time PCR in Normal CNS and During Neuroinflammation

Detection of MicroRNAs in Microglia by Real-time PCR in Normal CNS and During Neuroinflammation

Published on: July 23, 2012

Obtaining Human Microglia from Adult Human Brain Tissue

Obtaining Human Microglia from Adult Human Brain Tissue

Published on: August 30, 2020

相关概念视频

T Cell Types and Functions

T Cell Types and Functions

When T cells with CD4 markers are activated, they give rise to two types of effector cells: helper T cells and regulatory T cells. Meanwhile, T cells with CD8 markers differentiate into effector cytotoxic T cells. The differentiation of CD4 T cells into helper T cell subsets, such as Th1, Th2, and Th17 cells, is dependent on the antigen type, antigen-presenting cell, and regulatory cytokines.
Th1 cells stimulate dendritic cells to express necessary co-stimulatory molecules on their surfaces for...

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...

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 the pre-miRNA...