测量神经元生长中的逆行性动因流
Laura Pulido Cifuentes1, Daniel M Suter2,3,4,5,6,7
1Department of Biological Sciences, Purdue University, West Lafayette, IN, USA.
Methods in molecular biology (Clifton, N.J.)
|August 12, 2024
概括
量化神经元生长中的逆行性活性流对于理解细胞运动至关重要. 这项研究提出了三种方法来测量Aplysia神经元中的F-actin运动.
科学领域:
- 细胞生物学 细胞生物学
- 神经科学是一个神经科学.
- 细胞骨的动力学
背景情况:
- 动氨酸流动,F-actin细胞骨的运动,对于细胞运动至关重要,特别是在神经元生长体等运动细胞中.
- 这种流动通常是逆向的,从细胞外围向中心移动.
- 基质-细胞骨合使得actin流动能够推动细胞的前进运动.
研究的目的:
- 介绍和说明三种不同的方法来量化逆行F-actin流.
- 将这些方法应用于培养的Aplysia袋细胞神经元的生长中的F-actin流.
主要方法:
- 追踪表面标记珠的运动.
- 使用差异干扰对比 (DIC) 成像对时间间隔序列的基摩图分析.
- 用光斑显微镜 (FSM) 进行时间间隔序列的基摩图分析.
主要成果:
- 通过使用描述的方法,成功量化逆行F-actin流.
- 强调了Aplysia神经元生长因其大小而适合于这些技术.
结论:
- 提出的方法提供了强大的方法来测量神经元生长中的逆行F-actin流.
- 这些技术可适应用于其他生长系统,具有独特的F-actin丰富的外围域.
相关概念视频
01:14Action Potential
Neurons communicate by firing action potentials—the electrochemical signal that is propagated along the axon. The signal results in the release of neurotransmitters at axon terminals, thereby transmitting information to the nervous system. An action potential is a specific "all-or-none" change in membrane potential that results in a rapid spike in voltage.
Membrane potential in neurons
Neurons typically have a resting membrane potential of about -70 millivolts (mV). When they receive...
Membrane potential in neurons
Neurons typically have a resting membrane potential of about -70 millivolts (mV). When they receive...
01:23Propagation of Action Potentials
The propagation of an action potential refers to the process by which a nerve impulse, or "action potential," travels along a neuron.
Neurons (nerve cells) have a resting membrane potential, with a slightly negative charge inside compared to outside. This is maintained by ion channels, such as sodium (Na+) and potassium (K+) channels, which control the flow of ions. When a stimulus, like a touch or a signal from another neuron, triggers the neuron, sodium channels open, allowing sodium ions to...
Neurons (nerve cells) have a resting membrane potential, with a slightly negative charge inside compared to outside. This is maintained by ion channels, such as sodium (Na+) and potassium (K+) channels, which control the flow of ions. When a stimulus, like a touch or a signal from another neuron, triggers the neuron, sodium channels open, allowing sodium ions to...