响应pH的纳米平台用于针对性药物释放和在微生物群相关结直肠癌中的免疫重塑
Haodi Ma1, Liying Zhang1, Lulu Wang1,2
1Key Laboratory of Biotechnology and Bioresources Utilization (Ministry of Education), College of Life Science, Dalian Minzu University, Dalian, 116600, China.
Journal of nanobiotechnology
|March 5, 2026
概括
一种新的纳米剂SeNPs@CBT,有效地准并消除Fusobacterium核菌和结直肠癌 (CRC) 细胞. 这种双重作用的方法对治疗CRC,特别是F.核丰富亚型的治疗有前途.
科学领域:
- 纳米医学是一种纳米医学.
- 在瘤学瘤学.
- 微生物学 微生物学
背景情况:
- 菌核素 (F. nucleatum) 与结直肠癌 (CRC) 的发展和治疗耐药性有关.
- 传统的抗生素缺乏特异性,破坏肠道健康,需要替代策略.
研究的目的:
- 开发一种多功能纳米剂 (SeNPs@CBT),用于同时消除F.核和CRC细胞.
- 在F.核相关的CRC小鼠模型中评估SeNPs@CBT的疗效.
主要方法:
- 合成SeNPs@CBT纳米剂,其中包括纳米颗粒,奇托-4-碳氧乙酸和咖啡酸乙烯 (CAPE).
- CAPE在酸性瘤微环境中的pH敏感释放用于细菌根除和免疫调节.
- 通过 phenylboronic 酸组瘤向,导致协同作用的亡诱导.
主要成果:
- 在F. nucleatum相关的CRC小鼠模型中,SeNPs@CBT显著抑制了瘤生长.
- 在细菌清除,瘤细胞杀死和免疫激活方面表现出协同效应.
- 机理学研究发现了细胞循环停止,线粒体功能障碍和p53通路激活.
结论:
- SeNPs@CBT表现出三重协同作用:杀菌,杀瘤和免疫激活.
- 这种纳米医学平台为与微生物群相关的CRC提供了精确的治疗策略,特别是F. nucleatum阳性病例.
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