相关实验视频
Updated: Aug 13, 2026

11:28
Culturing Microglia from the Neonatal and Adult Central Nervous System
Published on: August 9, 2013
28.1K
微质的各种能量新陈代谢,以应对不同的刺激
Xiaohui Liu1,2,3, Ning Jiang2,3, Wenxia Zhou1,2,3
1School of Traditional Chinese Medicine, Guangdong Pharmaceutical University, Guangzhou 510006, China.
Molecules (Basel, Switzerland)
|June 10, 2023
概括
在阿尔茨海默氏症 (AD) 中微质激活涉及各种代谢变化. 针对微质新陈代谢,特别是糖解,显示可能干扰AD相关的病理变化.
科学领域:
- 神经科学是一个神经科学.
- 免疫学 免疫学 免疫学
- 代谢过程中的代谢.
背景情况:
- 微质激活是阿尔茨海默病 (AD) 中神经炎症的核心.
- 像PAMP,DAMP和细胞因子这样的刺激会触发不同的微质反应和AD中的代谢转变.
- 在各种刺激下,微质中的特定代谢差异仍然不清楚.
研究的目的:
- 研究由LPS (PAMP),Aβ和ATP (DAMP) 和IL-4 (细胞因子) 诱导的微质细胞类型反应和能量代谢变化.
- 探索是否向微质代谢可以调节与AD相关的微质反应.
主要方法:
- 利用了BV-2细胞,一种来自小鼠的不朽化微质细胞系.
- 暴露细胞对脂聚糖 (LPS),粉胺-β (Aβ),腺三酸盐 (ATP) 和介质素-4 (IL-4) 的作用.
- 评估了细胞形态,活力,融合速率,细胞化,糖解和氧化酸化 (OXPHOS) 的变化.
主要成果:
- LPS诱导了转向糖解的转变,并抑制了OXPHOS,增强了微质功能.
- Aβ和ATP引起了阿米体形态和可变的代谢变化,影响功能不同.
- 暴露IL-4导致了最小的病理和代谢变化.
- 抑制葡萄糖分解逆转了LPS诱导的炎症变化,而促进葡萄糖分解对ATP诱导的变化的影响最小.
结论:
- 微质对不同的刺激 (PAMP,DAMP,细胞因子) 呈现出不同的病理和代谢反应.
- 准微质细胞代谢是阿尔茨海默病的潜在治疗策略.
- 了解特定刺激的代谢途径对于开发有效的干预措施至关重要.
相关概念视频
Activation Energy
Activation energy is the minimum amount of energy necessary for a chemical reaction to move forward. The higher the activation energy, the slower the rate of the reaction. However, adding heat to the reaction will increase the rate, since it causes molecules to move faster and increase the likelihood that molecules will collide. The collision and breaking of bonds represents the uphill phase of a reaction and generates the transition state. The transition state is an unstable high-energy state...
Non-equilibrium in the Cell
An important concept in studying metabolism and energy is that of chemical equilibrium. Most chemical reactions are reversible. They can proceed in both directions, releasing energy into their environment in one direction, and absorbing it from the environment in the other direction. The same is true for the chemical reactions involved in cell metabolism, such as the breaking down and building up of proteins into and from individual amino acids, respectively. Reactants within a closed system...
Energy Transfer in Chemical Reactions
Chemical reactions require sufficient energy to cause the matter to collide with enough precision and force that old chemical bonds can be broken and new ones formed. In general, kinetic energy is the form of energy powering any type of matter in motion. Imagine a person building a brick wall. The energy it takes to lift and place one brick on top of another is the kinetic energy—the energy matter possesses because of its motion. Once the wall is in place, it stores potential energy. Potential...
Redox Reactions
Redox reactions are vital biochemical processes that underpin energy metabolism in cells. These reactions involve the transfer of electrons between molecules, occurring in tandem as oxidation and reduction. Oxidation refers to the loss of electrons, while reduction denotes their gain. This coupling ensures the seamless flow of electrons through metabolic pathways. For example, in bacterial metabolism, glucose undergoes oxidation to carbon dioxide, while oxygen is simultaneously reduced to...
Introduction to Metabolism
Metabolism encompasses all biochemical reactions in a living organism, facilitating both the breakdown and synthesis of biomolecules. These metabolic processes are categorized into catabolic and anabolic pathways, which operate in a coordinated manner to ensure energy balance and cellular function.Catabolic Pathways and Energy ReleaseCatabolic pathways involve the breakdown of complex macromolecules such as carbohydrates, lipids, and proteins into smaller structures like monosaccharides, fatty...
Metabolism of Chemolithotrophs
Chemolithotrophs are microorganisms that obtain energy by oxidizing inorganic molecules such as hydrogen gas (H₂), ammonia (NH₃), reduced sulfur compounds (H₂S, S²⁻), and ferrous iron (Fe²⁺). Unlike heterotrophic organisms that rely on organic carbon, chemolithotrophs transfer electrons from these inorganic donors to the electron transport chain (ETC), generating a proton motive force (PMF) that drives ATP synthesis through oxidative phosphorylation. However, because inorganic electron donors...

