相关实验视频

Updated: May 11, 2026

Partial Lobular Hepatectomy: A Surgical Model for Morphologic Liver Regeneration

Partial Lobular Hepatectomy: A Surgical Model for Morphologic Liver Regeneration

Published on: May 31, 2018

肝细胞特异性HuR可以保护小鼠免受乙氨基诱导的肝损伤

Linlin Lu¹, Jicui Chen², Hui Jiang¹

¹Institute of Medical Sciences, the Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China.

Journal of cellular and molecular medicine

|November 30, 2024

概括

人类抗原R (HuR) 通过增强肝细胞增殖,自和抗氧化能力,防止乙氨基 (APAP) 过量肝损伤. HuR调节了参与这些过程的关键蛋白质,为药物诱导的肝损伤提供了潜在的治疗点.

科学领域:

肝病学肝病学是一种肝病学.
分子生物学分子生物学
毒理学毒理学毒理学

背景情况:

乙氨基 (APAP) 过量服用是导致药物诱导性肝损伤 (DILI) 的主要原因.
肝细胞增殖,自和抗氧化能力对于DILI预后至关重要.
在APAP诱导的肝损伤背后的精确分子机制仍然不完全理解.

研究的目的:

研究人类抗原R (HuR) 在APAP诱导的肝损伤中的作用.
阐明HuR影响肝损伤,增殖,自和抗氧化剂防御的分子机制.

主要方法:

利用APAP诱导的肝损伤的小鼠模型.
产生了特定于肝细胞的条件HuR淘汰小鼠.
通过蛋白质表达分析评估肝损伤,肝细胞增殖,自标志物 (ATG3,ATG5,ATG7) 和抗氧化能力 (NRF2).
使用分子生物学技术研究了HuR与目标mRNA3'-未翻译区域 (UTR) 的相互作用.

主要成果:

在APAP诱导的肝损伤中,HuR蛋白表达显著上调.
肝细胞特异性淘汰HuR加剧了APAP诱导的肝损伤.
胡尔缺乏导致循环素 (A1,B1,D1),CDK2,ATG蛋白和NRF2.2的表达减少.
这些分子变化与肝细胞增殖,自和抗氧化能力的降低有关.
发现HuR可以物理结合目标mRNA的3'-UTR,调节它们的翻译.

结论:

HuR在减轻APAP诱导的肝损伤方面发挥着关键的保护作用.
通过促进肝细胞增殖,自和抗氧化能力,HuR减轻了肝损伤.
HuR的机制涉及通过mRNA 3'-UTR结合对关键基因的转录后调节.

关键词:

由APAP引起的肝损伤这就是 HuRR 的意思.自自是自的过程.肝细胞增殖肝细胞的增殖氧化应激是一种氧化应激.

更多相关视频

Induction of Drug-Induced, Autoimmune Hepatitis in BALB/c Mice for the Study of Its Pathogenic Mechanisms

Induction of Drug-Induced, Autoimmune Hepatitis in BALB/c Mice for the Study of Its Pathogenic Mechanisms

Published on: May 29, 2020

Generation of a Rat Model of Acute Liver Failure by Combining 70% Partial Hepatectomy and Acetaminophen

Generation of a Rat Model of Acute Liver Failure by Combining 70% Partial Hepatectomy and Acetaminophen

Published on: November 27, 2019

相关概念视频

Effect of Hepatic Disease on Pharmacokinetics: Pathophysiologic Assessment and Liver Function Test

Effect of Hepatic Disease on Pharmacokinetics: Pathophysiologic Assessment and Liver Function Test

In clinical practice, the direct measurement of hepatic blood flow to evaluate liver function presents significant challenges due to the intricate and specialized nature of the necessary techniques. Consequently, healthcare professionals often rely on empirical estimates derived from thorough patient examinations and liver function tests to gauge liver health. Among the tools at their disposal, the Child–Pugh and MELD scoring systems stand out for their ability to categorize and assess the...

Hepatitis

Hepatitis

Hepatitis is an inflammatory condition of the liver most commonly caused by hepatotropic viruses (A–E), though non-infectious causes such as alcohol and drugs also exist.Hepatitis AHepatitis A virus (HAV) is a non-enveloped RNA virus of the Picornaviridae family. It is primarily transmitted via the fecal-oral route, typically through ingestion of contaminated food or water. After ingestion, HAV enters the bloodstream through the oropharynx or intestinal epithelium and reaches the liver. The...