相关实验视频

Updated: Jul 17, 2025

Generation of Oligodendrocytes and Oligodendrocyte-Conditioned Medium for Co-Culture Experiments

Generation of Oligodendrocytes and Oligodendrocyte-Conditioned Medium for Co-Culture Experiments

Published on: February 9, 2020

寡基质中的BMAL1损失有助于异常的髓化和睡眠

Daniela Rojo¹, Louisa Dal Cengio¹, Anna Badner¹

¹Department of Psychiatry and Behavioral Sciences, Stanford University School of Medicine, Palo Alto, CA 94305, USA.

|September 1, 2023

概括

昼夜节律蛋白BMAL1对于寡类细胞前体细胞的发育和功能至关重要. 在这些细胞中破坏BMAL1会损害髓形成,认知功能和运动技能,影响大脑健康.

科学领域:

神经科学是一个神经科学.
时间生物学时间生物学
细胞生物学细胞生物学

背景情况:

来自寡头细胞前体细胞 (OPCs) 的寡头细胞对于中枢神经系统中的髓化至关重要.
昼夜钟蛋白BMAL1在各种细胞过程中发挥作用,但其在OPC中的特定功能尚不清楚.

研究的目的:

研究BMAL1在OPC发育,功能和髓化中的作用.
确定OPC特定的Bmal1干扰对大脑功能和疾病病理学的影响.

主要方法:

在发育和成年期使用了淘汰赛小鼠模型,在OPC中特定删除Bmal1.
分析了基因表达,OPC增殖,形态,迁移和髓化.
评估认知和运动功能,睡眠模式,以及脱髓化病变的复髓化.

主要成果:

在发育过程中OPC特定的Bmal1淘汰导致了改变昼夜基因表达,损害了OPC动态 (增殖,迁移,形态),髓变薄,以及认知,运动和睡眠功能的缺陷.
成人OPC中的Bmal1损失没有影响OPC基线密度,但通过改变OPC形态和迁移,阻碍了回髓化.
观察到,在患有多发性硬化症 (MS) 的人群中,睡眠碎片化更为普遍.

结论:

BMAL1是OPC发育和功能的关键调节者,对适当的髓化和大脑健康至关重要.
在OPC中破坏BMAL1具有时空后果,影响发育性髓化和成年人复髓化.
这项研究表明,昼夜调节失调,多发性硬化症等髓性疾病和睡眠障碍之间存在潜在联系,突出显示了治疗途径.

关键词:

在BMAL1中,在OPC中,OPC是OPC.昼夜活动时间 (Circadian)脱化是脱化的一种.多发性硬化症多发性硬化症骨髓蛋白是什么意思骨髓蛋白是什么意思一个小分子基细胞.睡眠睡眠睡眠睡眠睡眠

更多相关视频

Preparation of Rat Oligodendrocyte Progenitor Cultures and Quantification of Oligodendrogenesis Using Dual-infrared Fluorescence Scanning

Preparation of Rat Oligodendrocyte Progenitor Cultures and Quantification of Oligodendrogenesis Using Dual-infrared Fluorescence Scanning

Published on: February 17, 2016

Production and Use of Lentivirus to Selectively Transduce Primary Oligodendrocyte Precursor Cells for In Vitro Myelination Assays

Production and Use of Lentivirus to Selectively Transduce Primary Oligodendrocyte Precursor Cells for In Vitro Myelination Assays

Published on: January 12, 2015

相关概念视频

REM Sleep Behavior Disorder

REM Sleep Behavior Disorder

REM Sleep Behavior Disorder (RBD) is a sleep disorder characterized by the absence of muscle paralysis that normally occurs during the REM phase of sleep. This absence allows individuals to physically act out their dreams, which are often vivid and disturbing. Common behaviors exhibited during episodes include kicking, punching, and yelling. These actions can be dangerous, potentially leading to injuries for the person with RBD or their bed partner.
RBD is significantly associated with...

Nervous Tissue: Myelin

Nervous Tissue: Myelin

The myelin sheath is a multilayered lipid and protein covering that insulates the axon of a neuron, enhancing the speed of nerve impulse conduction. Axons without this sheath are referred to as unmyelinated. Two types of neuroglia, Schwann cells in the peripheral nervous system (PNS) and oligodendrocytes in the central nervous system (CNS) are responsible for producing myelin sheaths.
Schwann cells begin to form myelin sheaths around axons during fetal development. They wrap around a small...

Sleep-Wake Cycles

Sleep-Wake Cycles

Sleep is an essential physiological process vital to maintaining overall well-being. The reticular activating system (RAS), a network of neurons in the brainstem, regulates wakefulness and sleep. While it may seem passive, sleep consists of distinct cycles, each with its unique characteristics and functions. Two key sleep phases are non-rapid eye movement (NREM) and rapid eye movement (REM).
NREM Sleep
NREM sleep comprises four progressive stages that seamlessly merge: