相关实验视频

Updated: Mar 15, 2026

The Use of Primary Human Fibroblasts for Monitoring Mitochondrial Phenotypes in the Field of Parkinson's Disease

The Use of Primary Human Fibroblasts for Monitoring Mitochondrial Phenotypes in the Field of Parkinson's Disease

Published on: October 3, 2012

核因子红色素2相关因子2的诱导通过帕金调节取消了线粒体应激

Narukkottil Safreena¹, Jimna Mohamed Ameer², Indu C Nair³

¹Cell Biology Laboratory, Centre for Development and Aging Research, Inter University Centre for Biomedical Research & Super Speciality Hospital, Mahatma Gandhi University campus at Thalappady, Rubber Board PO, Kottayam 686009 Kerala, India; School of Health Sciences, Purdue University, West Lafayette, IN 47907, USA.

Free radical biology & medicine

|March 13, 2026

概括

线粒体压力导致帕金森病.

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
生物化学生物化学

背景情况:

线粒体应激 (MS) 是老化相关的神经退行性疾病的关键特征,如帕金森病 (PD).
慢性多发性硬化症破坏神经元蛋白质稳定,并导致多巴胺基神经退行.
多发性硬化症通过何种精确的机制使E3无素酶帕金基因失活,目前尚不清楚.

研究的目的:

阐明将线粒体质量的渐进变化与MS诱导的帕金活动变化的机制框架.
研究帕金-PARIS-PGC1α通路在急性和慢性线粒体应激反应中的作用.
评估甲蓝 (MB) 在缓解PD中线粒体和蛋白质静态衰竭的治疗潜力.

主要方法:

研究了急性和慢性多发性硬化症对帕金活性差异调节的研究.
通过帕金基底 PARIS 分析过氧酶增殖器激活受体 γ 协同激活剂 1α (PGC1α) 的转录控制.
评估了甲蓝 (MB) 对暴露于PD神经毒素MPP⁺的细胞中NRF2-parkin轴和线粒体功能的影响.

主要成果:

急性MS激活了parkin-PARIS-PGC1α通路,暂时促进了线粒体生物发生.
慢性多发性硬化导致帕金无活化,PARIS积累,PGC1α抑制,以及线粒体质量的丧失.
通过向NRF2-parkin轴,MB治疗恢复了parkin活动,降低了PARIS水平,重新激活了PGC1α,并通过向NRF2-parkin轴,使线粒体复苏.

结论:

慢性线粒体损伤在帕金森病中显著损害帕金森功能.
NRF2-帕金轴是PD治疗干预的关键目标.
甲蓝在保护PD中的线粒体和蛋白质静态衰竭方面表现有前途.

关键词:

E3 无处不在的合酶多巴胺作用的神经退行症线粒体中的线粒体.帕金斯是一个停车场.蛋白质稳定症是一种蛋白质稳定症.

更多相关视频

Author Spotlight: Fluorescence-Based Quantification of Mitochondrial Membrane Potential and Superoxide Levels Using Live Imaging in HeLa Cells

Author Spotlight: Fluorescence-Based Quantification of Mitochondrial Membrane Potential and Superoxide Levels Using Live Imaging in HeLa Cells

Published on: May 12, 2023

Protection of H9c2 Myocardial Cells from Oxidative Stress by Crocetin via PINK1/Parkin Pathway-Mediated Mitophagy

Protection of H9c2 Myocardial Cells from Oxidative Stress by Crocetin via PINK1/Parkin Pathway-Mediated Mitophagy

Published on: May 26, 2023

相关概念视频

Translocation of Proteins into the Mitochondria

Translocation of Proteins into the Mitochondria

Mitochondrial precursors are translocated to the internal subcompartments via independent mechanisms involving distinct protein machineries called translocases.
Sorting of outer membrane proteins:
Mitochondrial outer membrane proteins are of two types: the transmembrane, beta-barrel porins, and the membrane-anchored, alpha-helical proteins. Beta-barrel porin precursors are translocated by the TOM complex and inserted into the outer mitochondrial membrane by the SAM complex. In contrast,...

NF-κB-dependent Signaling Pathway

NF-κB-dependent Signaling Pathway

The transcription factor NF-κB was discovered in 1986 in the lab of Nobel laureate Professor David Baltimore, for its interaction with the immunoglobulin light chain enhancer in B-cells. After more than three decades of study, it is now evident that NF-κB regulates the expression of over 100 genes. Most of these genes play an essential role in the innate and adaptive immune responses as well as the inflammatory responses of animals.
NF-κB-dependent Signaling Mechanism
The...

Regulation of the Unfolded Protein Response

Regulation of the Unfolded Protein Response

Inositol-requiring kinase one or IRE1 is the most conserved eukaryotic unfolded protein response (UPR) receptor. It is a type I transmembrane protein kinase receptor with a distinctive site-specific RNase activity. As the binding mechanics of the misfolded proteins with the N-terminal domain of IRE-1 are unclear, three binding models — direct, indirect, and allosteric -- are proposed for receptor activation. Nevertheless, it is known that once a misfolded protein associates with IRE1, it...

Electron Transport Chain: Complex I and II

Electron Transport Chain: Complex I and II

The mitochondrial electron transport chain (ETC) is the main energy generation system in the eukaryotic cells. However, mitochondria also produce cytotoxic reactive oxygen species (ROS) due to the large electron flow during oxidative phosphorylation. While Complex I is one of the primary sources of superoxide radicals, ROS production by Complex II is uncommon and may only be observed in cancer cells with mutated complexes.
ROS generation is regulated and maintained at moderate levels necessary...

Mitochondrial Protein Sorting

Mitochondrial Protein Sorting

Mitochondria are double-membrane organelles of the eukaryotes involved in cellular metabolism, signaling, ATP synthesis, and programmed cell death. Each of these processes requires specific proteins and enzymes that must be correctly sorted to the right mitochondrial subcompartment for the proper functioning of the organelle.
Most of these mitochondrial proteins are encoded by the nucleus and imported to the mitochondria as unfolded or loosely folded precursors. Mitochondrial precursors...

The Unfolded Protein Response

The Unfolded Protein Response

The ER is the hub of protein synthesis in a cell. It has robust systems to quality control protein folding and also for degradation of terminally misfolded proteins. Under normal conditions, a small proportion of misfolded proteins that cannot be salvaged need to be transported to the cytoplasm by the ER-associated degradation or ERAD pathways. However, if the ERAD cannot handle the misfolded proteins, the cell activates the unfolded protein response or UPR to adjust the protein folding...