孕激素受体膜成分1调节慢性神经炎症疾病中细胞应激反应和炎症途径
1College of Veterinary Medicine, Chungnam National University, Daejeon 34134, Republic of Korea.
Antioxidants (Basel, Switzerland)
|February 24, 2024
概括
孕激素受体膜成分1 (PGRMC1) 的损失可能会加速阿尔茨海默病 (AD) 的进展. 缺少PGRMC1会加剧神经炎症和AD相关标志物,这表明它在AD病变发生过程中起着保护作用.
科学领域:
- 神经科学是一个神经科学.
- 免疫学 免疫学 免疫学
- 分子生物学分子生物学
背景情况:
- 阿尔茨海默病 (AD) 是导致痴呆的主要原因,其特征是神经退行.
- 由细胞因子和反应性物种标记的神经炎症是AD发展的关键因素.
- 孕激素受体膜成分1 (PGRMC1) 在神经炎症期间在脑细胞中表达.
研究的目的:
- 研究PGRMC1在神经炎症和AD病变发生中的作用.
- 评估PGRMC1缺乏对炎症反应和AD相关因素的影响.
主要方法:
- 使用脂聚糖 (LPS) 诱导的慢性神经炎症小鼠模型.
- 使用Pgrmc1淘汰 (KO) 鼠和Pgrmc1淘汰细胞系 (U373-MG星球细胞).
- 测量了炎症性细胞因子水平,与AD相关的标记物,内质网膜压力指标和细胞死亡.
主要成果:
- 与野生型 (WT) 小鼠相比,KO小鼠在LPS治疗后表现出较高的IL-1β水平.
- KO小鼠显示炎症因素增加,ER压力和AD标志物增加.
- 使用星球细胞的体外研究证实了这些指标在PGRMC1缺乏时.
结论:
- 失去PGRMC1似乎会促进神经炎症.
- 缺少PGRMC1可能会导致阿尔茨海默病的发展和进展.
相关概念视频
Inflammatory Response
2.0K
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,...
2.0K
Regulation of the Unfolded Protein Response
2.4K
Inositol-requiring kinase one or IRE1 is the most conserved eukaryotic unfolded protein response (UPR) receptor. It is a type I transmembrane protein kinase receptor with a distinctive site-specific RNase activity. As the binding mechanics of the misfolded proteins with the N-terminal domain of IRE-1 are unclear, three binding models — direct, indirect, and allosteric -- are proposed for receptor activation. Nevertheless, it is known that once a misfolded protein associates with IRE1, it...
2.4K
Psychoneuroimmunology: Cardiovascular Disease
30
Psychoneuroimmunology (PNI) is a multidisciplinary field that examines how psychological factors, particularly stress, interact with the immune system and impact physical health. Research in PNI has shown that chronic or traumatic stress can disrupt both the hypothalamic-pituitary-adrenal axis and the sympathetic nervous system. These disruptions contribute to serious health conditions, including cardiovascular diseases.
A key area of focus in PNI is the relationship between stress and coronary...
A key area of focus in PNI is the relationship between stress and coronary...
30
NF-κB-dependent Signaling Pathway
7.4K
The transcription factor NF-κB was discovered in 1986 in the lab of Nobel laureate Professor David Baltimore, for its interaction with the immunoglobulin light chain enhancer in B-cells. After more than three decades of study, it is now evident that NF-κB regulates the expression of over 100 genes. Most of these genes play an essential role in the innate and adaptive immune responses as well as the inflammatory responses of animals.
NF-κB-dependent Signaling Mechanism
The...
NF-κB-dependent Signaling Mechanism
The...
7.4K
Hypothalamic-Pituitary Axis
60.0K
The response to stress—be it physical or psychological, acute or chronic—involves activation of the Hypothalamic-Pituitary-Adrenal (HPA) axis. The HPA axis is part of the neuroendocrine system because it involves both neuronal and hormonal communication. Its function is to regulate homeostatic systems—metabolic, cardiovascular, and immune—providing the necessary means to respond to a stressor.
60.0K
Psychoneuroimmunology: Diabetes and Cancer
29
Chronic stress has been linked to both the onset and progression of serious health conditions, including Type 2 diabetes and cancer. Type 2 diabetes, a widespread chronic illness, is closely associated with obesity and insulin resistance, both of which often worsen under stress. Studies indicate that men experiencing high levels of chronic stress face a 45% higher risk of developing diabetes compared to those with minimal stress. Stress triggers physiological responses that elevate blood...
29


