在FUS-ALS中增加对铁亡的脆弱性
Muhammad Ismail1, Dajana Großmann1, Andreas Hermann1,2,3
1Translational Neurodegeneration Section "Albrecht Kossel", Department of Neurology, University Medical Center Rostock, University of Rostock, 18147 Rostock, Germany.
Biology
|April 26, 2024
概括
作为细胞死亡途径的铁亡,与肌缩性侧面硬化症 (ALS) 有关. 由于线粒体问题,FUS-ALS细胞表现出增加的铁亡脆弱性和减少的xCT,这表明新的治疗点.
科学领域:
- 神经科学是一个神经科学.
- 细胞生物学 细胞生物学
- 生物化学 生化学
背景情况:
- 铁,依赖于铁的细胞死亡,与神经退行有关.
- 肌缩性侧面硬化症 (ALS) 涉及运动神经元损失,对细胞死亡机制的理解有限.
- 在FUS的突变与家族性ALS有关,呈现线粒体功能障碍和氧化应激.
研究的目的:
- 调查铁死在FUS-ALS中的参与.
- 阐明铁死在FUS-ALS中运动神经元退化中的作用.
- 确定针对铁亡的FUS-ALS的潜在治疗策略.
主要方法:
- 利用FUS-ALS细胞模型来评估铁灭的脆弱性.
- 分析了线粒体形态和功能.
- Ferroptosis相关蛋白质的量化表达,包括xCT.
- 评估了铁化和MCU抑制对铁亡的作用.
主要成果:
- FUS-ALS细胞表现出对铁亡的敏感性增加.
- 在FUS-ALS细胞中观察到线粒体干扰和xCT表达的减少.
- 增加了脂质过氧化和氧化还原系统失衡.
- 德费洛克萨明和MCU的抑制降低了铁和脂质过氧化.
结论:
- 铁亡与FUS-ALS的病变发生有关.
- 减少xCT表达有助于FUS-ALS中的铁亡.
- 准铁代谢和MCU为FUS-ALS提供了潜在的治疗途径.
更多相关视频
04:01Author Spotlight: Tracing the Ferroptotic Signatures and Cell Death Dynamics in Medulloblastoma for Advanced Therapeutics
Published on: March 15, 2024
956
11:12Assay Development for High Content Quantification of Sod1 Mutant Protein Aggregate Formation in Living Cells
Published on: October 4, 2017
7.2K
相关概念视频
Amyloid Fibrils
9.5K
Amyloid fibrils are aggregates of misfolded proteins. Under most circumstances, misfolded proteins are either refolded by chaperone proteins or degraded by the proteasome. However, in the case of a mutation or a disease, these proteins can accumulate to form large clusters and often further assemble to form elongated fibers, called fibrils.
Amyloid deposits were observed as early as 1639 in the liver and the spleen. In 1854, Rudolph Virchow performed iodine staining,...
Amyloid deposits were observed as early as 1639 in the liver and the spleen. In 1854, Rudolph Virchow performed iodine staining,...
9.5K
Necrosis
4.5K
Necrosis is considered as an “accidental” or unexpected form of cell death that ends in cell lysis. The first noticeable mention of “necrosis” was in 1859 when Rudolf Virchow used this term to describe advanced tissue breakdown in his compilation titled “Cell Pathology”.
Morphological Manifestations of Necrosis
Necrotic cells show different types of morphological appearance depending on the type of tissue and infection. In coagulative necrosis, cells become...
Morphological Manifestations of Necrosis
Necrotic cells show different types of morphological appearance depending on the type of tissue and infection. In coagulative necrosis, cells become...
4.5K
Lysosomal Hydrolases
3.8K
Lysosomes are the site for the degradation of macromolecules and biological polymers released during membrane trafficking events such as secretory, endocytic, autophagic, and phagocytic pathways. The membrane-enclosed area of the lysosome, called the lumen, contains hydrolytic enzymes active in an acidic environment. These acid hydrolases are functional at a pH between 4.5 and 5 and are involved in cellular processes such as cell signaling, energy metabolism, restoration of the plasma membrane,...
3.8K
