生物灵感设计的单原子菌纳米酶促进了内部环境驱动的对淋巴瘤的协同疗法
Xiaoli Wei1, Mengjun Wang1, Mingze Lu1
1State Key Laboratory of Digital Medical Engineering, Jiangsu Key Laboratory for Biomaterials and Devices, School of Biological Science and Medical Engineering & Basic Medicine Research and Innovation Center of Ministry of Education, Southeast University, Nanjing 211102, P. R. China.
ACS applied materials & interfaces
|December 4, 2025
概括
生物启发的单原子纳米酶向瘤并抑制转移,以加强非霍奇金淋巴瘤治疗. 这个平台利用瘤微环境进行协同治疗,显示出强大的转化潜力.
科学领域:
- 生物医学工程 生物医学工程
- 纳米技术 纳米技术
- 癌症治疗方法 癌症治疗方法
背景情况:
- 酶过程依赖于特定的结合和催化位点.
- 开发有效的纳米酶介导癌症疗法是一个重大挑战.
- 向瘤微环境和转移对于协同治疗癌症至关重要.
研究的目的:
- 开发针对瘤的小胞单原子纳米酶,用于协同的抗霍奇金淋巴瘤 (NHL) 治疗.
- 在纳米酶设计中整合瘤微环境 (TME) 响应和主动向.
- 研究Fe(II) NC-SAz-E5细胞在抑制淋巴瘤进展和转移方面的治疗潜力.
主要方法:
- 通过将Fe(II) 离子固定在PLGA-PEG-NH2-DOTA-E5复合体中,构建Fe(II) NC-SAz-E5微粒,形成FeN4(COOH) 活性位点.
- 利用DOTA化进行精确的离子定,以及用于瘤向的E5.
- 评估了催化活性,瘤向性,TME响应性,以及体外和体内治疗疗效.
主要成果:
- Fe(II) NC-SAz-E5微粒表现出类似过氧化酶的高催化效率,模仿自然酶.
- 菌体在瘤组织中表现出优先积累,并通过CXCR4/CXCL12轴抑制转移.
- 通过利用TME成分 (H2O2,GSH,葡萄糖) 的自我维持周期实现有效的瘤细胞消除.
- 在临床前研究中表现出强大的催化活性,显著的淋巴瘤抑制,以及强大的抗转移效应.
结论:
- 开发的Fe(II) NC-SAz-E5细胞纳米酶平台为NHL治疗提供了一个有前途的协同方法.
- 该设计整合了TME响应能力和积极向,以提高治疗结果.
- 使用FDA批准的材料 (PLGA) 和临床相关技术 (DOTA化) 强调了该平台强大的临床转化潜力.
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