由学习和可塑性信号诱导的突触性线粒体中的极化ATP合成酶
Yi Hu1,2, Xi Wang1,2, Kaiyuan Liu1,2
1School of Artificial Intelligence Science and Technology, University of Shanghai for Science and Technology, Shanghai, China.
Communications biology
|November 20, 2025
概括
先进的显微镜 (3D MINFLUX) 揭示了在学习过程中大脑细胞中的线粒体蛋白转移. 这种突触可塑性研究突出了ATP合成酶.
科学领域:
- 神经科学是一个神经科学.
- 细胞生物学 细胞生物学
- 显微镜的使用方法
背景情况:
- 单分子定位显微镜 (MINFLUX) 提供了高精度的纳米结构可视化.
- 以前,MINFLUX的应用仅限于主要用于培养细胞.
- 了解大脑组织中的线粒体动力学对神经科学至关重要.
研究的目的:
- 为了适应MINFLUX 3D成像用于固定脑组织.
- 为了研究树突和恩格拉姆细胞中的线粒体分布.
- 探索线粒体在突触可塑性和记忆中的作用.
主要方法:
- 在固定脑组织中为3D MINFLUX精制样本的准备.
- 应用3DMINFLUX纳米镜来可视化线粒体蛋白质.
- 使用双色3DMINFLUX成像进行详细分析.
主要成果:
- 线粒体内膜蛋白在恩格拉姆细胞树突中在突触可塑性期间进行重组.
- 与学习相关的α-F1-ATP合成酶的显著重新分配.
- 在树突棘中观察到的明确的线粒体重组模式持续长达12小时.
结论:
- 线粒体再分配,特别是α-F1-ATP合成酶,在突触可塑性和记忆中起作用.
- 极化ATP合成可能调节突触功能.
- 3D MINFLUX成像是研究大脑组织中神经元过程的强大工具.
相关概念视频
Long-term Potentiation
3.4K
Long-term potentiation, or LTP, is one of the ways by which synaptic plasticity—changes in the strength of chemical synapses—can occur in the brain. LTP is the process of synaptic strengthening that occurs over time between pre and postsynaptic neuronal connections. The synaptic strengthening of LTP works in opposition to the synaptic weakening of long-term depression (LTD) and together are the main mechanisms that underlie learning and memory.
Hebbian LTP
LTP can occur when...
Hebbian LTP
LTP can occur when...
3.4K
Long-term Potentiation
58.2K
Long-term potentiation, or LTP, is one of the ways by which synaptic plasticity—changes in the strength of chemical synapses—can occur in the brain. LTP is the process of synaptic strengthening that occurs over time between pre- and postsynaptic neuronal connections. The synaptic strengthening of LTP works in opposition to the synaptic weakening of long-term depression (LTD) and together are the main mechanisms that underlie learning and memory.
58.2K
ATP Synthase: Mechanism
16.6K
In animals, the mitochondrial F1F0 ATP synthase is the key protein that synthesizes ATP molecules through a complex catalytic mechanism. While the nuclear genome encodes the majority of ATP synthase subunits, the mitochondrial genome encodes some of the enzyme's most critical components. The formation of this multi-subunit enzyme is a complex multi-step process regulated at the level of transcription, translation, and assembly. Defects in one or more of these steps can result in decreased...
16.6K
Long-term Depression
3.0K
Long-term depression, or LTD, is one of the ways by which synaptic plasticity—changes in the strength of chemical synapses—can occur in the brain. LTD is the process of synaptic weakening that occurs over time between pre and postsynaptic neuronal connections. The synaptic weakening of LTD works in opposition to synaptic strengthening by long-term potentiation (LTP) and together are the main mechanisms that underlie learning and memory.
Calcium Ion Concentration Mechanism
If over...
Calcium Ion Concentration Mechanism
If over...
3.0K
Long-term Depression
33.0K
Long-term depression, or LTD, is one of the ways by which synaptic plasticity—changes in the strength of chemical synapses—can occur in the brain. LTD is the process of synaptic weakening that occurs over time between pre and postsynaptic neuronal connections. The synaptic weakening of LTD works in opposition to synaptic strengthening by long-term potentiation (LTP) and together are the main mechanisms that underlie learning and memory.
33.0K
ATP Synthase: Structure
15.0K
ATP synthase or ATPase is among the most conserved proteins found in bacteria, mammals, and plants. This enzyme can catalyze a forward reaction in response to the electrochemical gradient, producing ATP from ADP and inorganic phosphate. ATP synthase can also work in a reverse direction by hydrolyzing ATP and generating an electrochemical gradient. Different forms of ATP synthases have evolved special features to meet the specific demands of the cell. Based on their specific feature, ATP...
15.0K


