胆固醇在神经元和外围炎症中的共同作用
1Department of Molecular Medicine, UF Scripps, Jupiter, FL 33458, USA; Department of Neuroscience, UF Scripps, Jupiter, FL 33458, USA.
Pharmacology & therapeutics
|June 30, 2023
概括
胆固醇的积累导致神经炎症和认知能力下降. 了解它的作用,特别是来自天体细胞的胆固醇,为神经退行性疾病提供了新的治疗点.
科学领域:
- 神经科学是一个神经科学.
- 神经炎症是一种神经炎症.
- 脂质代谢 脂质代谢是什么
背景情况:
- 神经退行和认知功能障碍与炎症和脂质积累有关.
- 周边地区的胆固醇吸收是慢性炎症的关键驱动因素.
- 胆固醇在神经炎症中的细胞和分子作用尚未完全理解.
研究的目的:
- 描述胆固醇在神经炎症中的细胞和分子作用.
- 为了将胆固醇在大脑中的作用与其在外围的作用进行对比.
- 在神经炎症中提出胆固醇吸收途径.
主要方法:
- 透视性综述整合了对周边和中枢神经系统中胆固醇代谢的知识.
- 在神经炎症中分析胆固醇的细胞和分子机制.
- 关于阿波利波蛋白E (apoE) 和其突变体在神经炎症中的作用的猜测.
主要成果:
- 胆固醇作为源自星球细胞的中央信号分子,将神经元和微质中的炎症反应联系起来.
- 提出了一个潜在的胆固醇吸收途径用于神经炎症.
- 包括克莱斯特彻奇突变体在内的阿波利波蛋白E (apoE) 可能通过与细胞表面受体结合来提供对神经炎症的保护.
结论:
- 胆固醇在神经炎症中起着至关重要的作用,外周和中枢神经系统之间有共同的机制.
- 准来自天体细胞的胆固醇和apoE相互作用,为神经退行性疾病提供了潜在的治疗策略.
- 进一步研究胆固醇信号,包括纳米分类和外围胆固醇来源,是有必要的.
相关概念视频
Cholesterol: Significance and Regulation
600
Although not a source of energy, cholesterol plays a significant role as a foundational structure for bile salts, steroid hormones, and vitamin D, as well as being a crucial component of plasma membranes. Approximately 15% of blood cholesterol is derived from our diet, with the remainder synthesized from acetyl CoA by the liver and intestines. Cholesterol is eliminated from the body through its conversion into bile salts, which are eventually discarded in the feces.
Considering cholesterol and...
Considering cholesterol and...
600
Inflammation
53.9K
Overview
53.9K
Inflammatory Response
2.2K
An inflammatory response is a localized, nonspecific immune reaction that occurs when a tissue is injured. It is characterized by redness, swelling, heat, and pain, which are commonly called the cardinal signs and symptoms of inflammation. Inflammation can sometimes result in a loss of function.
Inflammation can be triggered by various stimuli, such as impact, abrasion, chemical irritation, infections, and extreme hot or cold temperatures. These can damage cells and connective tissue fibers,...
Inflammation can be triggered by various stimuli, such as impact, abrasion, chemical irritation, infections, and extreme hot or cold temperatures. These can damage cells and connective tissue fibers,...
2.2K
T Cell Types and Functions
1.1K
When T cells with CD4 markers are activated, they give rise to two types of effector cells: helper T cells and regulatory T cells. Meanwhile, T cells with CD8 markers differentiate into effector cytotoxic T cells. The differentiation of CD4 T cells into helper T cell subsets, such as Th1, Th2, and Th17 cells, is dependent on the antigen type, antigen-presenting cell, and regulatory cytokines.
Th1 cells stimulate dendritic cells to express necessary co-stimulatory molecules on their surfaces for...
Th1 cells stimulate dendritic cells to express necessary co-stimulatory molecules on their surfaces for...
1.1K
Inflammatory Response I: Vascular and Cellular
11.4K
The inflammatory response is the body's defense against infection, injury, or irritation from bacteria, trauma, toxins, or heat. Inflammation helps locate and destroy pathogens and remove damaged tissue elements to heal the body. During this initial phase, fluid, blood products, and nutrients migrate to the injured area, resulting in redness, heat, swelling, ache, and loss of function. Moreover, signs of systemic inflammation include fever, increased WBC count, malaise, anorexia, nausea,...
11.4K
Lipid-derived Compounds in the Human Body
4.4K
Fats and lipids are crucial components in the human body. Some lipid-derived compounds, such as fat-soluble vitamins, eicosanoids, lipoproteins, and glycolipids, also play unique roles to support various biological processes .
Fat-soluble Vitamins
Fat-soluble vitamins, including vitamins A, D, E, and K, are required in minimal quantities, but their deficiencies can lead to severely abnormal physiological conditions. For example, vitamin A deficiency can cause night blindness, dry skin,...
Fat-soluble Vitamins
Fat-soluble vitamins, including vitamins A, D, E, and K, are required in minimal quantities, but their deficiencies can lead to severely abnormal physiological conditions. For example, vitamin A deficiency can cause night blindness, dry skin,...
4.4K


