一个无植入物纳米系统,可实现协同作用的氧化损害缓解和深度大脑刺激,以缓解帕金森症症状
Chen Zhou1, Feifei Wu1, Liqing He1
1Key Laboratory of Organosilicon Chemistry and Material Technology, Ministry of Education, Zhejiang Key Laboratory of Organosilicon Material Technology, College of Material, Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou, Zhejiang 311121, China.
ACS nano
|July 15, 2025
概括
这项研究引入了一种无植入,激光激活的纳米粒子系统,用于帕金森病 (PD) 治疗. 它增强了深度大脑刺激 (DBS) 和神经保护,为侵袭性PD疗法提供了一个有希望的替代方案.
科学领域:
- 生物医学工程 生物医学工程
- 纳米技术纳米技术
- 神经科学是一个神经科学.
背景情况:
- 深度大脑刺激 (DBS) 对帕金森病 (PD) 运动症状有效,但需要侵入性植入物,并随着时间的推移失去有效性.
- 现有的DBS疗法面临着永久植入的挑战,随着PD的进展,治疗效果正在减弱.
研究的目的:
- 开发一种无植入,激光激活的纳米系统,将无线DBS与对帕金森病的抗氧化神经保护相结合.
- 克服目前PD的侵入性DBS治疗方法的局限性.
主要方法:
- 将类似酶的2-乙乙-1-胺 (SePh),二氧化 (MnO2) 和NIR-II吸收器IR-1048集成到一个半孔多多巴胺 (mPDA) 内核上,形成mPDA-SeMn-IR纳米粒子.
- 静脉内注射mPDA-SeMn-IR,然后进行NIR-II激光照射,以激活细胞内信号,并消除活性氧物种.
- 在斑马鱼模型和帕金森病小鼠模型中评估治疗效果.
主要成果:
- 对mPDA-SeMn-IR纳米粒子的NIR-II激光照射激活了Ca2+外流,通过增加氨酸氧化酶表达和多巴胺释放来增强多巴胺功能.
- 该纳米系统有效地消除了反应性氧物种,促进了神经元的存活和恢复神经元功能.
- 活体研究表明斑马鱼中中脑神经元和运动行为的调节,在PD模型中显著缓解了运动症状.
结论:
- 开发的无植入物,激光激活的NIR-II纳米系统为帕金森病提供了一种新的治疗策略.
- 这种方法协同提高了DBS的效率,并提供神经保护,解决了当前治疗方法的关键局限性.
- 这项研究提出了一种有希望的,非侵入性的治疗途径,用于帕金森病的管理.
相关概念视频
Parkinson's Disease: Treatment
1.4K
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...
1.4K
Parkinson's Disease: Overview
2.4K
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...
2.4K


