从上向下进行的微型细胞衍生纳米纤维包裹黄素,针对阿尔茨海默病治疗的3R策略 (移除,重塑,修复)
Jianjian Chu1,2,3, Hui Hu2, Wei Xu2
1Department of Neurology, Second Affiliated Hospital (Shanghai Changzheng Hospital) of Naval Medical University, Shanghai, China.
Materials today. Bio
|August 13, 2025
概括
这项研究开发了载有黄素 (NV-CUR) 的新型纳米纤维,以有效治疗阿尔茨海默病 (AD). 在没有毒性的AD小鼠中,NV-CUR改善了大脑传递,减少了神经炎症,并恢复了认知功能.
科学领域:
- 神经科学是一个神经科学.
- 纳米技术 纳米技术
- 药理学 药理学是指药理学的学科.
背景情况:
- 阿尔茨海默病 (AD) 是与人口老龄化相关的日益严重的全球健康问题.
- 黄素显示出治疗阿尔茨海默病的潜力,但其生物可用性较差.
- 开发有效的药物输送系统对于AD治疗至关重要.
研究的目的:
- 为提高阿尔茨海默病的传递和疗效,制造含有黄素的纳米微粒 (NV-CUR).
- 为了验证一个"三R"战略 (去除衰老细胞,重塑神经炎症,修复神经元) 的AD.
- 评估NV-CUR在AD小鼠模型中的治疗效果和生物安全性.
主要方法:
- 使用大脑定位的B16黑色素瘤细胞开发了载有黄素的纳米纤维 (NV-CUR).
- 在3xTg年龄的AD小鼠中,NV-CUR被系统使用.
- 评估了衰老细胞,神经炎症标记物,粉样β斑块,陶酸化,神经元完整性和认知功能.
主要成果:
- 此外,NV-CUR显示提高了溶解性,稳定性和血脑屏障 (BBB) 的透.
- NV-CUR有效地清除了衰老的微质,减少了SASP,并抑制了神经炎症 (IL-1β,IL-6,TNF-α).
- NV-CUR减少了粉样β斑块,减弱了的高酸化,恢复了神经元的完整性,并改善了认知功能.
结论:
- NV-CUR代表了阿尔茨海默病的有前途的纳米药物,与"三R"治疗范式保持一致.
- 这种方法提供了一种多方面的策略,通过准关键的病理特征来打击AD的病原性.
- 这项研究强调了NV-CUR在治疗阿尔茨海默氏症的临床可用性.
相关概念视频
Alzheimer's Disease: Treatment
261
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...
261
siRNA - Small Interfering RNAs
17.0K
Small interfering RNAs, or siRNAs, are short regulatory RNA molecules that can silence genes post-transcriptionally, as well as the transcriptional level in some cases. siRNAs are important for protecting cells against viral infections and silencing transposable genetic elements.
In the cytoplasm, siRNA is processed from a double-stranded RNA, which comes from either endogenous DNA transcription or exogenous sources like a virus. This double-stranded RNA is then cleaved by the...
In the cytoplasm, siRNA is processed from a double-stranded RNA, which comes from either endogenous DNA transcription or exogenous sources like a virus. This double-stranded RNA is then cleaved by the...
17.0K


