基酶5是一种新的阿尔茨海默病的遗传风险因素,调节微质炎症激活
Won Jae Seong1, Sang Joon An2,3, Jungsoo Gim4,5,6
1Department of Medicine, College of Medicine, Catholic Kwandong University, Gangneung, Gangwon-do, Republic of Korea.
Molecular brain
|November 27, 2025
概括
减少的腺酸酶5 (AK5) 对阿尔茨海默病 (AD) 中的微质功能产生影响. AK5变体与AD风险增加和大脑缩有关,这表明AK5是潜在的治疗点.
科学领域:
- 神经科学是一个神经科学.
- 免疫学 免疫学 免疫学
- 遗传学 遗传学是一种遗传学.
背景情况:
- 阿尔茨海默氏病 (AD) 是一种神经退行性疾病,其特征是认知能力下降和神经炎症,其中微质细胞起着中心作用.
- 微质功能障碍对阿尔茨海默病的发病有显著的贡献.
- 了解微质功能的新型调节者对于AD研究至关重要.
研究的目的:
- 调查腺酸酶5 (AK5) 在微质功能中的作用及其与阿尔茨海默氏病 (AD) 病理学的关联.
- 探索AK5对微质免疫和代谢反应的影响.
- 为了检查AK5变异与AD风险和大脑结构的遗传关联.
主要方法:
- 在人类AD脑组织和AD模型小鼠中分析AK5表达.
- 试验室研究涉及AK5在微质细胞中的敲击,以评估炎症和细胞反应.
- 制AK5的微质细胞的代谢概况.
- 全基因组关联研究 (GWAS) 以确定与AD相关的AK5单核酸多态 (SNP).
主要成果:
- 在AD大脑中观察到显著减少AK5表达.
- 微质中的AK5敲击减弱了前炎性反应 (例如,氧化,TNF-alpha) 和增强了细胞形成.
- AK5沉默导致了代谢重编程,包括改变脂质代谢和增加FXR表达.
- 两个AK5SNP (rs59556669,rs75224576) 与海马/杏仁体缩和AD风险增加显著相关,独立于APOE.
结论:
- AK5是微质免疫和代谢功能的关键调节者,与AD相关.
- AK5变种代表了AD易感性的潜在独立遗传风险因素.
- AK5表达和遗传状态可以作为早期AD风险评估的生物标志物.
- 准AK5为AD预防和治疗提供了潜在的治疗策略.
更多相关视频
09:33Quantitative 3D In Silico Modeling q3DISM of Cerebral Amyloid-beta Phagocytosis in Rodent Models of Alzheimer's Disease
Published on: December 26, 2016
8.3K
09:38Generalized Psychophysiological Interaction PPI Analysis of Memory Related Connectivity in Individuals at Genetic Risk for Alzheimer's Disease
Published on: November 14, 2017
15.5K
相关概念视频
Alzheimer's Disease: Overview
1.6K
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...
1.6K
Enzyme-linked Receptors
85.7K
Enzyme-linked receptors are proteins that act as both receptor and enzyme, activating multiple intracellular signals. This is a large group of receptors that include the receptor tyrosine kinase (RTK) family. Many growth factors and hormones bind to and activate the RTKs.
Neurotrophin (NT) receptors are a family of RTKs, including trkA, trkB, and trkC (tropomyosin-related kinase) receptors. TrkA is specific for nerve growth factor (NGF), neurotrophin-6, and neurotrophin-7. TrkB binds...
Neurotrophin (NT) receptors are a family of RTKs, including trkA, trkB, and trkC (tropomyosin-related kinase) receptors. TrkA is specific for nerve growth factor (NGF), neurotrophin-6, and neurotrophin-7. TrkB binds...
85.7K
Alzheimer's Disease: Treatment
772
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...
772
