佩奥尼佛洛林抑制了GSDMD,通过热灭症信号通路缓解ANIT诱导的胆固醇衰竭
Xiao Ma1, Wenwen Zhang1, Yuan Chen1
1State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China.
Phytomedicine : international journal of phytotherapy and phytopharmacology
|September 10, 2024
概括
佩奥尼弗洛林 (PF) 通过向加斯德明D (GSDMD) 来抑制热致死,从而保护肝脏免受胆固醇 (CT) 的侵蚀. 这项研究阐明了PF在治疗肝损伤和炎症方面的机制.
科学领域:
- 肝病学 肝病学是一种肝病学.
- 药理学 药理学是指药理学的学科.
- 分子生物学分子生物学
背景情况:
- 胆固醇症 (CT) 是一种由胆汁流失引起的肝脏疾病,导致肝细胞损伤和潜在的严重并发症.
- 未经治疗的CT可以发展为肝硬化,肝衰竭和危及生命的疾病.
研究的目的:
- 调查Paeoniflorin (PF) 的功能和机制,以缓解胆固醇病的alpha-naphthylisothiocyanate (ANIT) 诱导的火死.
- 阐明PF如何向特定途径以减轻肝损伤.
主要方法:
- 在使用ANIT的老鼠和HepG2细胞中建立了胆固醇定位模型.
- 利用网络药理学,分子对接和模拟来识别PF目标.
- 通过生物化学分析,ELISA,免疫光学,西式斑点和电子显微镜评估热.
主要成果:
- 在ANIT诱导的胆中,PF治疗改善了肝脏病理和改善了肝脏功能.
- 发现PF可以抑制NLRP3依赖性热灭路径,GSDMD被确定为关键标.
- 分子技术证实了PF与GSDMD的直接结合,抑制了下游的炎症反应.
结论:
- 在胆固醇病的模型中,paeoniflorin显示出显著的肝保护作用.
- PF针对Gasdermin D (GSDMD) 抑制热和减少炎症,为胆固醇病提供了一个潜在的治疗策略.
更多相关视频
08:20Investigating the Protective Effects of Platycodin D on Non-Alcoholic Fatty Liver Disease in a Palmitic Acid-Induced In Vitro Model
Published on: December 2, 2022
1.8K
07:15Mechanism of Kemeng Fang's Inhibition of Podocyte Apoptosis in Rats with Membranous Nephropathy through the PI3K/AKT Signaling Pathway
Published on: August 23, 2024
357
相关概念视频
01:12GPCR Desensitization
G protein-coupled receptor (GPCR) signaling plays a crucial role in cell functioning. GPCR desensitization is an equally essential process. It allows cells to respond to changing environments and regain sensitivity to new stimuli while preventing unnecessary stimulation when no longer needed. Prolonged exposure to stimuli leads to GPCR desensitization. It involves blocking the receptors from binding and activating additional G proteins. This inhibits activation of downstream effectors, thereby...
01:20Desensitization and Tachyphylaxis
Tachyphylaxis is described as a rapid decrease in response to a drug after repeated or continuous administration of the same drug dose. It is a phenomenon where the body becomes less responsive to a particular substance or intervention over time, requiring higher doses or stronger interventions to achieve the same effect. It results from adaptive changes in the body's receptors, signaling pathways, or physiological processes that occur in response to prolonged exposure to a stimulus.
Several...
Several...
01:21Drugs Affecting Neurotransmitter Release or Uptake
Certain drugs can affect how neurotransmitters called catecholamines, are released or taken back up in the adrenergic neuron. They can have different effects on the body's sympathetic transmission. Reserpine, a natural compound found in the Rauwolfia shrub, blocks a transporter called vesicular monoamine transporter (VMAT), which leads to a buildup of catecholamines in the cell and reduces sympathetic transmission. Another drug called guanethidine works in multiple ways, including blocking...
01:29Drugs Affecting Neurotransmitter Synthesis
Drugs affecting neurotransmitter synthesis can impact the adrenergic neuron and the synthesis of neurotransmitters. For example, α-methyltyrosine and carbidopa target specific enzymes involved in catecholamine synthesis. α-methyltyrosine inhibits the enzyme tyrosine hydroxylase, which converts tyrosine into dopamine. By blocking this enzyme, α-methyltyrosine reduces dopamine production and other catecholamines. Carbidopa, on the other hand, inhibits the enzyme dopa decarboxylase, which converts...
01:27CNS Depressants: Alcohol and Nicotine
Ethanol, a clear colorless alcohol, has been consumed by humans for millennia, but its effects on the body are far from benign. At lower doses, it induces decreased inhibitions and loquaciousness, leading to its social appeal. However, it can cause severe consequences at higher doses, such as coma and respiratory depression, due to its zero-order elimination kinetics. Chronic ethanol abuse wreaks havoc on multiple organ systems, particularly the CNS and the liver. Abrupt cessation of ethanol...
01:23Antidepressant Drugs: MAOIs and Other Agents
Atypical antidepressants, including bupropion (Wellbutrin), mirtazapine (Remeron), nefazodone (Serzone), trazodone (Desyrel), and vilazodone (Viibryd), offer unique mechanisms of action. Bupropion weakly inhibits dopamine and norepinephrine reuptake, aiding depression treatment and smoking cessation, with a low risk of sexual dysfunction. Mirtazapine enhances serotonin and norepinephrine neurotransmission, leading to sedation, increased appetite, and weight gain. As a result, it helps treat...