在帕金森病中,ZKSCAN3通过TFEB影响自-溶解体通路
Ming Yang1, Shukai Lin2, Baofei Sun3
1Department of Neurosurgery, The Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou 550025, P.R. China.
Biomedical reports
|March 14, 2025
概括
带有KRAB和SCAN域3的指 (ZKSCAN3) 通过改变自-溶酶体通路,影响帕金森病 (PD). ZKSCAN3通过转录因子EB (TFEB) 介导的机制影响PD的发展.
科学领域:
- 神经科学是一个神经科学.
- 分子生物学分子生物学
- 细胞生物学 细胞生物学
背景情况:
- 帕金森病 (PD) 是一种神经退行性疾病,其特征是α-synuclein的积累和自-溶酶体通路功能受损.
- 指与KRAB和SCAN域3 (ZKSCAN3) 和转录因子EB (TFEB) 在PD病变发生中的作用在很大程度上仍未被探索.
研究的目的:
- 在帕金森病的细胞模型中研究ZKSCAN3和TFEB对自-溶酶体通路的影响.
- 在PD中阐明ZKSCAN3和TFEB之间的监管关系.
主要方法:
- 建立了一个使用SH-SY5Y细胞治疗6氧多巴胺的PD细胞模型.
- 利用ZKSCAN3和TFEB过度表达载体和小干扰RNAs (siRNAs) 来进行基因操纵.
- 通过RT-qPCR和西式斑点测试评估了关键的自和溶酶体标志物的表达水平 (Beclin-1,LC3II/I,α-synuclein,Lamp-1).
- 使用LysoTracker红色染色,共聚焦显微镜和传输电子显微镜可视化了 lysosomal 形态和自菌体/lysosome 动态.
主要成果:
- 在PD模型细胞中,ZKSCAN3,TFEB,Beclin-1和Lamp-1的mRNA水平降低,LC3II/I和α-synuclein蛋白水平增加.
- ZKSCAN3过度表达降低了Beclin-1和LC3II/I蛋白质水平,同时增加了α-synuclein.
- ZKSCAN3干扰增加了LC3II/I蛋白,Beclin-1和α-synuclein水平,这表明它具有保护作用.
- TFEB操纵逆转了ZKSCAN3的影响,这表明了下游的监管作用.
- 用LysoTracker红色光指示的溶酶体功能在PD模型细胞和ZKSCAN3/TFEB过度表达组中受损,但在ZKSCAN3/TFEB干扰时得到改善.
结论:
- ZKSCAN3在帕金森病的发生和发展中起着重要作用.
- ZKSCAN3通过TFEB介导的自-溶酶体通路影响PD的进展.
- 准ZKSCAN3-TFEB轴可能为帕金森病提供治疗策略.
更多相关视频
09:29Time-Lapse Video Microscopy for Assessment of EYFP-Parkin Aggregation as a Marker for Cellular Mitophagy
Published on: May 4, 2016
7.1K
12:49Human Peripheral Blood Neutrophil Isolation for Interrogating the Parkinson's Associated LRRK2 Kinase Pathway by Assessing Rab10 Phosphorylation
Published on: March 21, 2020
7.4K
相关概念视频
01:22Lysosomal Hydrolases
3.7K
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,...
3.7K
01:37Neural Regulation
39.0K
Digestion begins with a cephalic phase that prepares the digestive system to receive food. When our brain processes visual or olfactory information about food, it triggers impulses in the cranial nerves innervating the salivary glands and stomach to prepare for food.
39.0K
01:15Parkinson's Disease: Overview
410
Neurodegenerative disorders are progressive diseases that cause irreversible damage and loss to neurons in specific brain areas. Examples of these disorders include Parkinson's disease, Alzheimer's disease, Multiple Sclerosis (MS), and Amyotrophic Lateral Sclerosis (ALS). These disorders share characteristics such as proteinopathies, selective neuronal vulnerability, and a complex interplay between genetic and environmental factors. The primary therapeutic goal for these conditions is...
410
01:24Parkinson's Disease: Treatment
174
Neurodegenerative disorders, such as Parkinson's Disease (PD), involve the gradual and irreversible destruction of neurons in particular brain areas. These disorders exhibit standard features like proteinopathies, selective vulnerability of some neurons, and an interaction of intrinsic properties, genetics, and environmental influences in neural injury.
Parkinson's Disease is primarily a result of the loss of dopaminergic neurons in the substantia nigra pars compacta. The cornerstone of...
Parkinson's Disease is primarily a result of the loss of dopaminergic neurons in the substantia nigra pars compacta. The cornerstone of...
174