CD276导向的超分子纳米平台与pH触发的gemcitabine释放,用于强大的瘤 stromal 和血管抑制
Jiayi Li1, Hao Liu1,2, Zhijun Li1
1Key Laboratory of Nanomedical Technology (Education Department of Fujian Province), Department of Pharmaceutical Analysis, School of Pharmacy, Fujian Medical University, Fuzhou 350122, China.
International journal of pharmaceutics: X
|December 9, 2025
概括
一种新的纳米平台 (Gem@CPL) 通过向CD276.6来增强胰腺癌的凝胺输送. 这改善了药物加载,稳定性和瘤特异性释放,提高了疗效并降低了毒性.
科学领域:
- 在瘤学瘤学.
- 纳米技术纳米技术
- 药物运输 药物运输 药物运输
背景情况:
- 吉姆西塔是胰腺癌的关键化疗,但面临着诸如药理动力学差异和瘤微环境障碍等局限性.
- 现有的pH响应性脂质体在较低的药物负载和过早的药物泄漏中扎,阻碍了临床使用.
研究的目的:
- 开发一种新型纳米平台 (Gem@CPL),通过向CD276.6来增强胰腺癌中gemcitabine的输送.
- 克服目前用于胰腺癌治疗的药物输送系统的局限性.
主要方法:
- 设计了一个高亲和度的抗CD276单链可变片段 (scFv).
- 开发了一种装有gemcitabine的纳米平台 (Gem@CPL),集成了pH响应和超分子组装策略.
- 在细胞和动物模型中对瘤积累,内化,药理动力学和抗瘤活性进行评估Gem@CPL.
主要成果:
- 与传统方法相比,Gem@CPL实现了4倍的药物装载能力和更好的稳定性.
- 该纳米平台展示了瘤特异性积累和CD276介导的内部化,增强了细胞内药物递送.
- 药理动力学研究显示,Gem@CPL.的半衰期增加了2.26倍,分布量显著减少.
- Gem@CPL导致抗瘤活性增加1.77倍,系统毒性降至最低.
结论:
- 新的Gem@CPL纳米平台有效地准CD276,改善了凝胺的输送和胰腺癌的治疗疗效.
- 这种方法提供了增强的全身暴露,减少了目标外分布,并改善了患者的耐受性,显示了临床翻译的希望.
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