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树突聚合物的高分子架构提供了不可逆转的抑制剂来阻止病毒感染
Ehsan Mohammadifar1, Matteo Gasbarri2, Mathias Dimde3
1Institut für Chemie und Biochemie Freie Universität Berlin, Takustr 3, 14195, Berlin, Germany.
Advanced materials (Deerfield Beach, Fla.)
|September 30, 2024
概括
一种新型树突聚合物自组装成一个二维超分子聚合物 (2D-SupraPol),可不可逆地抑制SARS-CoV-2. 这种2D-SupraPol在体外和体内都表现出高效,为预防病毒性呼吸道感染提供了潜在的鼻喷雾.
科学领域:
- 超分子化学 超分子化学
- 聚合物科学 聚合物科学
- 病毒学 病毒学
背景情况:
- 生物功能通常依赖于自我组装的结构,如蛋白质复合体和细胞膜.
- 树突聚合物为生物医学应用提供独特的特性.
研究的目的:
- 开发一种具有强大且不可逆转的抗病毒活性对抗SARS-CoV-2的自组装树突聚合物.
- 为了研究自组合聚合物的结构-活性关系.
主要方法:
- 一种树突性聚合物及其单体类型的合成.
- 形成二维超分子聚合物 (2D-SupraPol).
- 在体外和体内抗病毒试验 (SARS-CoV-2抑制).
- 低温传输电子显微镜 (cryo-TEM) 和小角度X射线/中子散射用于结构分析.
主要成果:
- 自组装的2D-SupraPol表现出低IC50 (30nM) 的SARS-CoV-2不可逆转的抑制.
- 单体类似物只显示可逆抑制,病毒在稀释后恢复感染力.
- 2D-SupraPol在叙利亚仓鼠模型中表现出良好的有效性.
- 化TEM揭示了2D-SupraPol可控制的侧面尺寸,可根据pH调节.
- 微角X射线和中子散射阐明了超分子组装架构.
结论:
- 自组装成2D-SupraPol对于树突聚合物对抗SARS-CoV-2的不可逆转的杀毒机制至关重要.
- 开发的2D-SupraPol是预防性鼻雾剂的有希望的候选者,可以防止病毒进入呼吸道.
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