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A Therapeutic Nanovaccine that Generates Anti-Amyloid Antibodies and Amyloid-specific Regulatory T Cells for Alzheimer's Disease
Advanced Materials ( IF 27.4 ) Pub Date : 2022-11-03 , DOI: 10.1002/adma.202207719
Mungyo Jung 1 , Songmin Lee 2 , Sohui Park 2 , Jihye Hong 3 , Cheesue Kim 1 , Illhwan Cho 2 , Hee Su Sohn 1 , Kyunghwan Kim 2 , In Wook Park 2 , Soljee Yoon 2, 4 , Sungpil Kwon 1 , Jisu Shin 2 , Donghee Lee 2 , Mikyung Kang 3 , Seokhyung Go 3 , Sangjun Moon 1 , Yeonseok Chung 5 , YoungSoo Kim 2, 4 , Byung-Soo Kim 1, 3, 6
Affiliation  

Alzheimer's disease (AD), the most common cause of dementia, is a complex condition characterized by multiple pathophysiological mechanisms including amyloid-β (Aβ) plaque accumulation and neuroinflammation in the brain. The current immunotherapy approaches, such as anti-Aβ monoclonal antibody (mAb) therapy, Aβ vaccines, and adoptive regulatory T (Treg) cell transfer, target a single pathophysiological mechanism, which may lead to unsatisfactory therapeutic efficacy. Furthermore, Aβ vaccines often induce T helper 1 (Th1) cell-mediated inflammatory responses. Here, a nanovaccine composed of lipid nanoparticles loaded with Aβ peptides and rapamycin is developed, which targets multiple pathophysiological mechanisms, exhibits the combined effects of anti-Aβ antibody therapy and adoptive Aβ-specific Treg cell transfer, and can overcome the limitations of current immunotherapy approaches for AD. The Nanovaccine effectively delivers rapamycin and Aβ peptides to dendritic cells, produces both anti-Aβ antibodies and Aβ-specific Treg cells, removes Aβ plaques in the brain, alleviates neuroinflammation, prevents Th1 cell-mediated excessive immune responses, and inhibits cognitive impairment in mice. The nanovaccine shows higher efficacy in cognitive recovery than an Aβ vaccine. Unlike anti-Aβ mAb therapy and adoptive Treg cell transfer, both of which require complicated and costly manufacturing processes, the nanovaccine is easy-to-prepare and cost-effective. The nanovaccines can represent a novel treatment option for AD.

中文翻译:

一种治疗性纳米疫苗,可产生抗淀粉样蛋白抗体和淀粉样蛋白特异性调节性 T 细胞,用于治疗阿尔茨海默病

阿尔茨海默氏病 (AD) 是痴呆症最常见的病因,是一种复杂的疾病,其特征在于多种病理生理机制,包括淀粉样蛋白-β (Aβ) 斑块积聚和大脑中的神经炎症。目前的免疫治疗方法,如抗 Aβ 单克隆抗体 (mAb) 疗法、Aβ 疫苗和过继调节性 T (Treg) 细胞转移,针对的是单一的病理生理机制,这可能导致疗效不尽如人意。此外,Aβ 疫苗通常会诱导 T 辅助细胞 1 (Th1) 细胞介导的炎症反应。在这里,开发了一种由载有 Aβ 肽和雷帕霉素的脂质纳米颗粒组成的纳米疫苗,它针对多种病理生理机制,表现出抗 Aβ 抗体治疗和过继性 Aβ 特异性 Treg 细胞转移的综合作用,并且可以克服当前 AD 免疫治疗方法的局限性。Nanovaccine 有效地将雷帕霉素和 Aβ 肽输送到树突状细胞,产生抗 Aβ 抗体和 Aβ 特异性 Treg 细胞,去除大脑中的 Aβ 斑块,减轻神经炎症,防止 Th1 细胞介导的过度免疫反应,并抑制小鼠的认知障碍. 纳米疫苗在认知恢复方面显示出比 Aβ 疫苗更高的功效。与需要复杂且昂贵的制造过程的抗 Aβ mAb 疗法和过继性 Treg 细胞转移不同,纳米疫苗易于制备且具有成本效益。纳米疫苗可以代表 AD 的新型治疗选择。产生抗 Aβ 抗体和 Aβ 特异性 Treg 细胞,去除大脑中的 Aβ 斑块,减轻神经炎症,防止 Th1 细胞介导的过度免疫反应,并抑制小鼠的认知障碍。纳米疫苗在认知恢复方面显示出比 Aβ 疫苗更高的功效。与需要复杂且昂贵的制造过程的抗 Aβ mAb 疗法和过继性 Treg 细胞转移不同,纳米疫苗易于制备且具有成本效益。纳米疫苗可以代表 AD 的新型治疗选择。产生抗 Aβ 抗体和 Aβ 特异性 Treg 细胞,去除大脑中的 Aβ 斑块,减轻神经炎症,防止 Th1 细胞介导的过度免疫反应,并抑制小鼠的认知障碍。纳米疫苗在认知恢复方面显示出比 Aβ 疫苗更高的功效。与需要复杂且昂贵的制造过程的抗 Aβ mAb 疗法和过继性 Treg 细胞转移不同,纳米疫苗易于制备且具有成本效益。纳米疫苗可以代表 AD 的新型治疗选择。与需要复杂且昂贵的制造过程的抗 Aβ mAb 疗法和过继性 Treg 细胞转移不同,纳米疫苗易于制备且具有成本效益。纳米疫苗可以代表 AD 的新型治疗选择。与需要复杂且昂贵的制造过程的抗 Aβ mAb 疗法和过继性 Treg 细胞转移不同,纳米疫苗易于制备且具有成本效益。纳米疫苗可以代表 AD 的新型治疗选择。
更新日期:2022-11-03
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