使用拉曼微光谱学评估神经元活动的无标签评估
Yuka Akagi1, Aya Norimoto1, Teruhisa Kawamura2
1Cellular and Molecular Biotechnology Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Central 5, 1-1-1 Higashi, Tsukuba 305-8565, Ibaraki, Japan.
Molecules (Basel, Switzerland)
|July 13, 2024
概括
涂料拉曼快速光谱系统 (PRESS) 有效地测量神经元活动和单个神经元和质中的化学反应. 这种无标签的技术有助于理解神经元群体动态和药物发现的药理学反应.
科学领域:
- 神经科学是一个神经科学.
- 频谱学是一种光谱学.
- 机器学习 机器学习
背景情况:
- 评估神经元群的输出对于理解神经系统功能至关重要.
- 之前的工作开发了快速拉曼光谱和机器学习,用于无标签的细胞状态评估.
研究的目的:
- 研究Paint Raman快速光谱系统 (PRESS) 在评估神经元活动方面的能力.
- 检查人类诱导的多能干细胞衍生神经元和细胞的化学反应.
主要方法:
- 利用PRESS从单个神经元和自主神经元质中快速获取拉曼光谱.
- 采用机器学习,主要组件分析 (PCA) 和部分最小平方区分分析 (PLSDA) 来进行数据分析.
- 使用依赖的方式使用谷氨酸和尼古丁测试了连接体响应.
主要成果:
- 在几秒钟内,PRESS从神经元和质中获得了高信号对噪声拉曼光谱.
- 在对谷氨酸和尼古丁的反应中检测到依赖的神经元活动.
- 观察到神经元活动的剂量依赖性变化,证明了PRESS的灵敏度.
结论:
- PRESS系统可以有效地评估个体神经元活动和神经元群体动态.
- 证明了该系统在评估药理反应和连接体响应性方面的实用性.
- 强调PRESS作为药物发现和再生医学研究的一个有前途的工具.
相关概念视频
01:20Raman Spectroscopy: Overview
355
The underlying principle of Raman spectroscopy is based on the interaction between light and matter, specifically molecules' inelastic scattering of photons. When a monochromatic beam of light, typically from a laser source, interacts with a sample, most scattered light has the same frequency as the incident light. This is known as Rayleigh scattering.
However, a small fraction of the scattered light exhibits a frequency shift due to the exchange of energy between the incident photons and...
However, a small fraction of the scattered light exhibits a frequency shift due to the exchange of energy between the incident photons and...
355
01:26Raman Spectroscopy Instrumentation: Overview
324
A conventional Raman spectrophotometer includes a laser source, a sample holding system, a wavelength selector, and a detector.
The monochromatic laser source, typically using visible or near-infrared radiation, generates a highly focused beam of light. This light interacts with the molecules of the sample, scattering some of the light. Liquid and gaseous samples are usually tested in ordinary glass capillaries, while solids can be analyzed as powders packed in capillaries or as potassium...
The monochromatic laser source, typically using visible or near-infrared radiation, generates a highly focused beam of light. This light interacts with the molecules of the sample, scattering some of the light. Liquid and gaseous samples are usually tested in ordinary glass capillaries, while solids can be analyzed as powders packed in capillaries or as potassium...
324