通过标记内源性LC3B来可视化体内大量自in vivo
Xiukui Gao1, Yue Xiong1, Hangbin Ma2
1Department of Respiratory and Critical Care Medicine, Center for Metabolism Research, The Fourth Affiliated Hospital of Zhejiang University School of Medicine and International School of Medicine, International Institutes of Medicine, Zhejiang University, Yiwu, China.
Autophagy
|February 14, 2025
概括
研究人员开发了一种新的小鼠模型 (tfLC3-KI),用于精确地测量体内自流量. 这种模型允许可视化各种组织中的自结构和流量,推进自研究.
科学领域:
- 细胞生物学 细胞生物学
- 分子生物学分子生物学
- 遗传学 是一个遗传学.
背景情况:
- 宏自 (自) 对于细胞和生物的健康至关重要.
- 准确地测量体内自流量对于研究至关重要.
- 现有的方法通常依赖于过度表达的自探头.
研究的目的:
- 开发一种新的敲进鼠标模型来研究自流动.
- 为了便于高分辨率测量自结构和流量.
- 研究大脑和生殖系统中的自动力学.
主要方法:
- 通过将一个合光标签插入本地Map1lc3b基因位点,开发了一个敲入鼠标模型 (tfLC3-KI).
- 在tfLC3-KI小鼠中表达了mRFP-eGFP-LC3B,用于可视化自结构和流量.
- 将tfLC3-KI小鼠与CAG-tfLC3小鼠 (过度表达探针) 进行比较,并绘制出生殖系统中的自.
主要成果:
- tfLC3-KI小鼠表现出mRFP-eGFP-LC3B的最佳表达,用于单细胞分辨率分析.
- 该模型允许在体内和初级细胞培养中方便地测量自流量.
- 证明了tfLC3-KI小鼠在绘制基底自活动在生殖系统的实用性.
结论:
- 在tfLC3-KI小鼠模型是有价值的实体自流的调查.
- 标记内源蛋白质提供了一种可行的方法来可视化自结构和流动.
- 这种方法支持大量和选择性自的研究.
相关概念视频
Autophagy
4.1K
Autophagy is a self-digesting process by which a cell protects itself from threats both within and outside the cell, ranging from abnormal proteins to invading bacteria. In this process, obsolete components of the cell and invading microbes are degraded by hydrolytic enzymes active in an acidic environment of the lysosomal lumen.
An autophagic pathway consists of a series of signaling events activated in response to diverse stress and physiological conditions such as food deprivation,...
An autophagic pathway consists of a series of signaling events activated in response to diverse stress and physiological conditions such as food deprivation,...
4.1K
Delivery Pathways to the Lysosome
6.1K
Eukaryotic cells use different mechanisms to eliminate toxic waste obsolete and worn-out substances. Lysosomes play a pivotal role in this, and hence, these substances are carried to the lysosome from other parts of the cell and extracellular space through different pathways. The most elaborately studied pathways to the lysosome are the endocytic pathways.
Endocytosis
In endocytosis, the cell membrane takes up macromolecules and particles from the surrounding medium. Clathrin-mediated...
Endocytosis
In endocytosis, the cell membrane takes up macromolecules and particles from the surrounding medium. Clathrin-mediated...
6.1K


