相关实验视频

Updated: May 30, 2025

Author Spotlight: Insights and Innovations in Gene Expression Manipulation Techniques for Choroid Plexus Research

Author Spotlight: Insights and Innovations in Gene Expression Manipulation Techniques for Choroid Plexus Research

Published on: June 16, 2023

通过准VHL-HIF轴来抑制APOE4诱导的神经病态

Wei I Jiang¹, Yiming Cao², Yue Xue²

¹Cardiovascular Research Institute, University of California San Francisco, San Francisco, CA 94158.

Proceedings of the National Academy of Sciences of the United States of America

|January 28, 2025

概括

无活化希佩尔-林道蛋白 (VHL-1) 抑制了虫中与阿尔茨海默氏症相关的APOE4风险. 稳定性缺氧诱导因子 (HIF-1) 模仿了这些保护作用,表明了一条保存的途径.

科学领域:

神经科学是一个神经科学.
遗传学是一个遗传学.
分子生物学分子生物学

背景情况:

人类阿波利波蛋白E (APOE4) 的 ε4 变体是阿尔茨海默病和增加死亡率的重要遗传风险因素.
确定抵消APOE4有害影响的机制对于开发治疗策略至关重要.

研究的目的:

研究希佩尔-林道 (VHL) 蛋白和缺氧诱导因子 (HIF) 途径在调节APOE4相关病态中的作用.
确定是否针对VHL-HIF轴可以减轻APOE4.4的有害影响.

主要方法:

使用表达人类APOE4的*Caenorhabditis elegans*模型来研究VHL-1失活的影响.
研究了稳定缺氧诱导因子 (HIF-1) 对APOE4诱导病理的影响.
在*APOE4*小鼠中研究了VHL-HIF机制的保存性,评估了脑血管损伤和突触损伤.

主要成果:

无活化VHL-1显著抑制死亡率和神经/行为病理在*APOE4*转基因*C. elegans*.
稳定HIF-1,一个VHL-1目标,模仿了VHL-1删除的保护作用.
在*APOE4*小鼠中,对VHL的遗传抑制减少了脑血管损伤和突触损伤,表明了进化保存的保护机制.

结论:

VHL-HIF轴是APOE4诱导的神经病理的一个关键调节器.
针对非增殖组织中的VHL-HIF通路可能提供一种新的治疗方法,以减少与APOE4.4相关的细胞损伤,神经退行和死亡率.

关键词:

在APOE4OE4中使用.在VHLHIF轴上.线粒体功能障碍线粒体功能障碍神经退行症的神经退行症氧化应激是一种氧化应激.

更多相关视频

AAV Systems and Mouse Models for Investigating Ectopic Expression of Neurod1 in Transduced Cells at Subacute and Chronic Times Post-Ischemic Stroke

AAV Systems and Mouse Models for Investigating Ectopic Expression of Neurod1 in Transduced Cells at Subacute and Chronic Times Post-Ischemic Stroke

Published on: November 29, 2024

Lentiviral Vector Platform for the Efficient Delivery of Epigenome-editing Tools into Human Induced Pluripotent Stem Cell-derived Disease Models

Lentiviral Vector Platform for the Efficient Delivery of Epigenome-editing Tools into Human Induced Pluripotent Stem Cell-derived Disease Models

Published on: March 29, 2019

相关概念视频

Regulation of Angiogenesis and Blood Supply

Regulation of Angiogenesis and Blood Supply

Rapidly dividing tumors, embryos, and wounded tissues require more oxygen than usual, lowering the oxygen concentration in the blood. At low oxygen or hypoxic conditions, an oxygen-sensitive transcription factor called the hypoxia-inducible factor 1 or HIF1 is activated. HIF1 is a dimeric protein of alpha (ɑ) and beta (β) subunits. Under optimal oxygen conditions, HIF1β is present in the nucleus while HIF1ɑ remains in the cytosol. HIF1ɑ is hydroxylated by prolyl...

Regulation of Hematopoietic Stem Cells

Regulation of Hematopoietic Stem Cells

All blood and immune cells are produced from the multipotent hematopoietic stem cells (HSCs) by the process of hematopoiesis. However, they all have a limited life span. In addition, many are depleted in immune surveillance or combatting an injury or infection. This makes blood one of the most regenerative tissues. Hematopoiesis helps replenish these blood and immune cells, restoring the body's normal functioning. However, overproduction of blood and immune cells can make them cancerous or...