相关实验视频

Updated: Jan 16, 2026

Characterization of MLKL-mediated Plasma Membrane Rupture in Necroptosis

Characterization of MLKL-mediated Plasma Membrane Rupture in Necroptosis

Published on: August 7, 2018

甲基胺暴露会通过RIPK1-RIPK3-MLKL轴通过透性线粒体诱导神经编程亡

Peng Zhou^1,2, Jiankang Xuan¹, Weixiao Xu¹

¹Department of Emergency Medicine, the First Affiliated Hospital of Nanjing Medical University, 300 Guangzhou Road, Nanjing 210029, China.

|September 27, 2025

概括

甲基胺 (甲基) 通过触发涉及MLKL的细胞死亡途径引起神经元死亡. 这种蛋白质移动到线粒体,破坏其功能,导致神经毒性.

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
毒理学毒理学毒理学

背景情况:

滥用甲基胺 (Meth) 是一个重要的公共卫生问题,与严重的神经毒性有关.
甲基诱导的神经元损伤涉及亡,这是一个编程形式的亡.
关联甲基暴露与线粒体功能障碍和亡的确切机制尚未完全理解.

研究的目的:

阐明RIPK1-RIPK3-MLKL途径在甲基诱导的神经毒性的作用.
为了研究甲基暴露后MLKL的线粒体转位和功能.
探索潜在的治疗点,以减轻甲基诱导的神经元损伤.

主要方法:

研究了RIPK1-RIPK3-MLKL瘤复合体在对甲基反应中的形成.
评估了MLKL激活及其转移到线粒体膜.
测量了线粒体膜潜力,ATP生成,mtDNA完整性和线粒体ROS (mtROS) 生产.
采用死细胞抑制剂1 (Nec-1) 来阻止死细胞形成和MLKL转位.
研究了阻断mtROS生成对Meth诱导的神经亡的影响.

主要成果:

甲基暴露显著诱导了RIPK1-RIPK3-MLKL瘤复合体的形成.
激活的MLKL转移到线粒体膜,表现出形成孔的活性.
MLKL转位导致线粒体膜潜力,ATP和mtDNA降低,mtROS增加.
由Nec-1抑制体形成改善了这些线粒体功能障碍,并阻碍了MLKL转位.
阻止mtROS生成显著降低了甲基诱导的神经元亡.

结论:

甲基胺暴露会通过MLKL激活和随后的线粒体膜转位触发神经元亡.
MLKL的线粒体孔形成活动破坏了线粒体功能,导致Meth的神经毒性.
准MLKL转位或mtROS产生可能提供针对甲基胺诱导的神经毒性的新疗法策略.

关键词:

甲基甲基的使用方法线粒体功能障碍线粒体功能障碍在RIPK1RIPK3MLKL轴上神经元亡症的神经元亡症

更多相关视频

Tyramide Signal Amplification for the Immunofluorescent Staining of ZBP1-Dependent Phosphorylation of RIPK3 and MLKL After HSV-1 Infection in Human Cells

Tyramide Signal Amplification for the Immunofluorescent Staining of ZBP1-Dependent Phosphorylation of RIPK3 and MLKL After HSV-1 Infection in Human Cells

Published on: October 20, 2022

Modeling Neuronal Death and Degeneration in Mouse Primary Cerebellar Granule Neurons

Modeling Neuronal Death and Degeneration in Mouse Primary Cerebellar Granule Neurons

Published on: November 6, 2017

相关概念视频

Necrosis

Necrosis

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...

MAPK Signaling Cascades

MAPK Signaling Cascades

Mitogen-activated protein kinase, or MAPK pathway, activates three sequential kinases to regulate cellular responses such as proliferation, differentiation, survival, and apoptosis. The canonical MAPK pathway starts with a mitogen or growth factor binding to an RTK. The activated RTKs stimulate Ras, which recruits Raf or MAP3 Kinase (MAPKKK), the first kinase of the MAPK signaling cascade. Raf further phosphorylates and activates MEK or MAP2 Kinases (MAPKK), which in turn phosphorylates MAP...

The Extrinsic Apoptotic Pathway

The Extrinsic Apoptotic Pathway

The extrinsic apoptotic pathway is initiated when extracellular death-inducing signals, such as specific cytokines, activate the death receptors expressed on the cell surface. The immune cells involved in this pathway are natural killer cells (NK cells) and cytotoxic T-lymphocytes. NK cells are critical in innate immune response, while cytotoxic T-lymphocytes are associated with adaptive immune response. These cells recognize specific receptors expressed on the altered cells and activate...