在神经元分化过程中,生物启发的化学传感器具有取决于配置的亲和力,用于局部追踪无定位Zn2+
Jian Chen1,2, Huixia Feng1,2, Chi Zhan1,2
1Beijing National Laboratory for Molecular Sciences, CAS Key Laboratories of Analytical Chemistry for Living Biosystems and Organic Solids, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China.
Analytical chemistry
|May 15, 2025
概括
研究人员开发了一种新的传感器,trans T-P,用于跟踪活神经细胞中的可变离子 (Zn2+). 这个工具可视化了神经元发育过程中的Zn2+变化,有助于理解神经功能.
科学领域:
- 神经科学是一个神经科学.
- 化学生物学 化学生物学
- 生物化学 生物化学
背景情况:
- 恒温和不稳定的离子 (Zn2+) 的运输对神经元功能至关重要.
- 了解Zn2+机制需要用于活细胞成像的先进分子工具.
研究的目的:
- 开发一种特异的,可光切换的化学传感器,用于追踪活神经细胞中的不稳定Zn2+.
- 为了使Zn2+在神经元膜附近的定位定位和成像.
主要方法:
- 设计了一种对立体化学敏感的化学传感器 (T-P) 灵感来自金属酶活性位点.
- 利用传感器的两和酸盐承载结构来实现细胞膜透性和近膜积累.
- 应用传感器用于在神经元分化过程中Zn2+波动的现场可视化.
主要成果:
- 跨TP传感器对Zn2+具有超高的亲和力,选择性和灵敏性.
- 在等离子体膜的细胞内侧实现了可变Zn2+的区域特异性成像.
- 在神经元分化过程中成功可视化了动态Zn2+波动.
结论:
- 跨TP化学传感器是监测神经细胞中Zn2+时空动态的一个有价值的工具.
- 这凸显了不稳定的Zn2+在神经功能和发育中的重要性.
- 该传感器有助于对神经科学中的Zn2+作用进行深入的机制研究.
相关概念视频
Chemical Synapses
Chemical synapses are specialized sites between two neurons or between a neuron and a non-neuronal cell like a muscle, glandular or sensory cell.
Because chemical synapses depend on the release of neurotransmitter molecules from synaptic vesicles to pass on their signal, there is an approximately one millisecond delay between when the axon potential reaches the presynaptic terminal and when the neurotransmitter leads to opening of postsynaptic ion channels. Additionally, this signaling is...
Because chemical synapses depend on the release of neurotransmitter molecules from synaptic vesicles to pass on their signal, there is an approximately one millisecond delay between when the axon potential reaches the presynaptic terminal and when the neurotransmitter leads to opening of postsynaptic ion channels. Additionally, this signaling is...
Chemotaxis in E. coli
Chemotaxis in Escherichia coli is a sensory-driven motility mechanism that enables bacteria to navigate chemical gradients, moving toward beneficial environments while avoiding harmful conditions. This process relies on a signal transduction system integrating external chemical cues with flagellar motor control.Chemoreceptors and Signal DetectionE. coli detects chemical gradients through methyl-accepting chemotaxis proteins (MCPs), which are membrane-bound chemoreceptors that sense attractants...
Chemical Synapses
Chemical synapses are specialized sites between two neurons or between a neuron and a non-neuronal cell like a muscle, glandular or sensory cell.
Because chemical synapses depend on the release of neurotransmitter molecules from synaptic vesicles to pass on their signal, there is an approximately one millisecond delay between when the axon potential reaches the presynaptic terminal and when the neurotransmitter leads to opening of postsynaptic ion channels. Additionally, this signaling is...
Because chemical synapses depend on the release of neurotransmitter molecules from synaptic vesicles to pass on their signal, there is an approximately one millisecond delay between when the axon potential reaches the presynaptic terminal and when the neurotransmitter leads to opening of postsynaptic ion channels. Additionally, this signaling is...
Chemotaxis and Direction of Cell Migration
Cells can detect chemical cues in their environment and reorganize the cytoskeleton to migrate toward them or away from them. This directional migration, called chemotaxis, is essential during embryogenesis and development, immune response, tissue repair and regeneration, and reproduction. These chemical cues can either attract or repel the cell's movement. For example, axon development is determined by a combination of chemoattractants and chemorepellents that direct the growing axon towards...
Introduction to Special Senses
Sensory receptors play an integral part in comprehending our external and internal environments. They receive diverse stimuli, converting them into the nervous system's electrochemical signals. This conversion occurs as the stimulus alters the sensory neuron's cell membrane potential, instigating the generation of an action potential. This action potential is subsequently transmitted to the central nervous system (CNS), which integrates with other sensory data or higher cognitive functions.


