相关实验视频

Updated: Jul 18, 2025

Analysis of Cardiomyocyte Development using Immunofluorescence in Embryonic Mouse Heart

Analysis of Cardiomyocyte Development using Immunofluorescence in Embryonic Mouse Heart

Published on: March 26, 2015

在产后发育期间,Calsequestrin1-Null小鼠激发-收缩合装置的结构适应

Stefania Murzilli¹, Matteo Serano², Laura Pietrangelo²

¹Department of Neuroscience, Imaging and Clinical Sciences (DNISC), Center for Advanced Studies and Technology (CAST), University G. d'Annunzio of Chieti-Pescara, 66100 Chieti, Italy.

|August 26, 2023

概括

卡尔塞克斯特林1 (CASQ1) 对于骨肌肉发育至关重要. 它的缺失会损害释放单元 (CRU) 的成熟,并影响T管组织,影响肌肉功能.

科学领域:

肌肉生理学肌肉生理学
细胞生物学细胞生物学
发育生物学是发展生物学.

背景情况:

骨肌的收缩依赖于精确的T管和SR膜相互作用.
基斯特林1 (CASQ1) 对于释放单元 (CRU) 是至关重要的.
CASQ1-null小鼠表现出超结构性的T管/SR结重塑.

研究的目的:

研究CASQ1在产后肌肉纤维发育中的作用.
在CASQ1-null小鼠中检查CRU成熟和结节蛋白参与.
评估CASQ1缺失对膜系统并置的影响.

主要方法:

野生类型 (WT) 和CASQ1-null扩展体长 (EDL) 纤维的形态研究.
从1周到4个月的肌肉纤维分析.
结节和T管相关蛋白质的蛋白质表达概况.

主要成果:

缺少CASQ1阻碍了CRU的成熟,尽管关键结点蛋白 (RyR,DHPR,三) 的正确局部化.
在CASQ1-null小鼠中观察到T管生物发生蛋白 (JPH1,AMPH2,CAV3,MG29) 的延迟表达.
在发育过程中,CASQ1缺乏影响CRU组合和T管蛋白的协调.

结论:

在骨肌中,CASQ1对于适当的产后发育和CRU的成熟至关重要.
CASQ1影响参与T管组织的蛋白质的表达和协调功能.
了解CASQ1的作用是解决与CRU和T管功能障碍相关的肌肉疾病的关键.

关键词:

这是EC合器.在这个问题上,calsequestrin.发展发展发展发展发展.这是骨肌肉的骨架肌肉.

更多相关视频

Analysis of Cardiac Contractile Dysfunction and Ca2+ Transients in Rodent Myocytes

Analysis of Cardiac Contractile Dysfunction and Ca2+ Transients in Rodent Myocytes

Published on: May 25, 2022

In Vivo Calcium Imaging in C. elegans Body Wall Muscles

In Vivo Calcium Imaging in C. elegans Body Wall Muscles

Published on: October 20, 2019

相关概念视频

Excitation-Contraction Coupling in Skeletal Muscles

Excitation-Contraction Coupling in Skeletal Muscles

Excitation-contraction coupling is a series of events that occur between generating an action potential and initiating a muscle contraction. It occurs at the triad, a structure found in skeletal muscle fibers that comprise a T-tubule and terminal cisternae of the sarcoplasmic reticulum on each side. These triads are visible in longitudinally sectioned muscle fibers. They are typically located at the A-I junction — the junction between the A and I bands of the sarcomere.
When an action...

Smooth Muscle Contraction

Smooth Muscle Contraction

Smooth muscle contraction is a complex process vital for various bodily functions, from maintaining blood vessel tension to facilitating the movement of food through the digestive tract. Unlike striated muscles, smooth muscle contraction begins more slowly and lasts longer.
The onset of contraction is triggered by an increase in calcium ions within the sarcoplasm, similar to the process in striated muscle. However, smooth muscles have a relatively smaller reservoir of the sarcoplasmic...