蛋白质聚合和神经退行性疾病:新疗法的结构前景
Sharif Arar1,2,3, Md Anzarul Haque1,2, Rakez Kayed1,2
1Mitchell Center for Neurodegenerative Diseases, University of Texas Medical Branch, Galveston, Texas, USA.
Proteins
|August 2, 2023
概括
研究人员正在探索生物物理方法,以了解阿尔茨海默病 (AD) 中的蛋白质结构. 本综述总结了分析蛋白质聚合物的技术,并为AD和其他蛋白质病变制定了新的治疗策略.
科学领域:
- 生物化学和结构生物学
- 神经科学和神经退行性疾病
背景情况:
- 目前的阿尔茨海默病 (AD) 治疗主要是症状性,可用的疾病修饰疗法有限.
- 阿尔茨海默病研究的一个重大障碍是对内在无序的蛋白质和粉样蛋白聚合物的结构多样性和机制的不完全理解.
- 最近批准lecanemab强调了对粉样β原纤维素有更好的洞察力的需要.
研究的目的:
- 审查生物物理方法的体外应用,以表征内在无序的蛋白质聚合物.
- 阐明蛋白质病变中蛋白质聚合物的异质性,致病性,结构和机制,包括AD.
- 探索利用小分子和结构生物学调节疾病相关蛋白质实体的策略.
主要方法:
- 用于研究内在无序蛋白质和粉样聚合物的体外生物物理技术的概述.
- 讨论用于药物设计和分子调制的结构生物学方法.
- 突出显示工具和技术,用于模拟tau和粉样组合的体内条件.
主要成果:
- 生物物理方法为疾病相关蛋白质的结构多样性和聚合机制提供了关键的见解.
- 了解蛋白质结构异质性是开发有针对性的治疗干预措施的关键.
- 在合理的药物设计中整合结构生物学和生物物理特性辅助.
结论:
- 生物物理方法对于揭示AD等神经退行性疾病中内在无序蛋白质的复杂性至关重要.
- 为了准确的临床前建模,需要进一步开发模拟体内条件的化学方法.
- 这一审查为设计针对致病性蛋白质组件的新疗法剂提供了一个框架.
相关概念视频
Amyloid Fibrils
9.6K
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,...
9.6K
Alzheimer's Disease: Overview
522
Alzheimer's Disease (AD) is a continually advancing neurodegenerative disorder, distinguished by escalating memory loss, cognitive dysfunction, and dementia. The disease unfolds in three stages: preclinical, mild cognitive impairment (MCI), and dementia. Its onset is insidious, and the progression gradual, with the cause not well explained by other disorders.
The clinical diagnosis of AD hinges on the presence of memory and other cognitive impairments. Biomarkers, such as changes in Aβ...
The clinical diagnosis of AD hinges on the presence of memory and other cognitive impairments. Biomarkers, such as changes in Aβ...
522
Alzheimer's Disease: Treatment
218
Alzheimer's Disease (AD), a neurodegenerative disorder, is pathologically identified by amyloid plaques and neurofibrillary tangles composed of tau protein. AD pharmacotherapy aims to manage cognitive symptoms, delay disease progression, and treat behavioral symptoms. The treatment is primarily symptomatic and palliative, with no definitive disease-modifying therapy available. Cholinesterase inhibitors, including donepezil (Aricept), rivastigmine (Exelon), and galantamine (Razadyne), are...
218
Parkinson's Disease: Overview
598
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...
598


