一种用于化疗和免疫治疗的生物对等触媒人造抗原呈现细胞
Zhengwei Liu1,2, Wenting Zhang1,3, Chuanqi Zhao1,3
1Laboratory of Chemical Biology, State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences Changchun 130022 P. R. China xqu@ciac.ac.cn.
Chemical science
|November 24, 2025
概括
这项研究引入了一种人工抗原呈现细胞 (aAPC),该细胞使用生物对等化学物质用于向瘤治疗. 这种仿生催化剂增强了个性化的抗瘤免疫力和癌症免疫疗法的有效性.
科学领域:
- 生物医学工程 生物医学工程
- 免疫学 免疫学 免疫学
- 材料科学 材料科学 材料科学
背景情况:
- 生物对等前药激活显示出瘤治疗的前景,但由于瘤的复杂性和个体异质性,在临床转化方面面临挑战.
- 开发用于局部药物激活和免疫系统调节的有效策略对于改善癌症治疗结果至关重要.
研究的目的:
- 开发一种基于人工抗原呈现细胞 (aAPC) 的仿生生物同位基催化剂,用于增强瘤治疗.
- 研究由催化前药物激活和免疫调节介导的双模式抗瘤反应.
主要方法:
- 转变金属催化剂 (TMC) 封装在被树突细胞膜覆盖的脂质纳米粒子 (LNP) 中 (LNP-Fe@dcM).
- 模仿免疫细胞功能以进行局部前药物激活和免疫系统启动.
- 使用多克索鲁比前药物激活诱导免疫细胞死亡 (ICD) 和T细胞激活.
主要成果:
- 通过催化前药物激活和免疫调节,LNP-Fe@dcM表现出双模式抗瘤反应.
- 局部多克索鲁比激活导致瘤细胞死亡,ICD,以及与瘤相关的抗原的释放.
- 树突细胞膜成分促进了T细胞的激活和增殖,增强了抗原呈现和免疫反应.
结论:
- 工程催化aAPC为生物对等癌症免疫疗法提供了一个多功能平台.
- 这种协同作用的策略有效地将局部药物输送与强大的免疫激活相结合,以提高治疗疗效.
- 仿生方法有可能通过启动抗瘤免疫来推进个性化癌症治疗.
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