通过仿生纳米药物在瘤微环境中协调精度,以有效治疗瘤
Yuemin Wang1, Hong Xu2, Xiaoming Huang3
1College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, China.
ACS applied materials & interfaces
|February 9, 2024
概括
重用抗酒精药物迪苏尔菲拉姆 (DSF) 在瘤内形成有毒的铜复合体 (CuET). 这种新的纳米制药方法有效地杀死癌细胞,并刺激抗瘤免疫反应.
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 癌症治疗
背景情况:
- 开发新型抗瘤药物面临重大挑战,包括漫长的试验和高成本.
- 重用现有药物,如迪苏尔菲拉姆 (DSF),为癌症治疗提供了一个有前途的替代方案.
- 迪苏尔菲拉姆会转化为二甲基二甲基酸盐 (DTC),这可以化铜离子,形成细胞毒性复合物 (CuET).
研究的目的:
- 开发一种新的纳米制药系统,以提高抗瘤疗效,使用二硫和铜.
- 研究瘤微环境中的细胞毒性CuET复合物的向传递和现场生成.
- 在临床前模型中评估M-MDTC纳米药物的免疫效应和整体治疗潜力.
主要方法:
- 双硫 (DSF) 被装入中孔多巴胺纳米载体中,表面用素和Cu2+进行化,并用瘤细胞膜伪装,以创建M-MDTC纳米药物.
- M-MDTC纳米药物被设计为通过静脉注射和随后在特定瘤微环境条件下 (酸性pH,光热刺激) 释放DSF和Cu2+的瘤部位的向输送.
- 进行了体外和体内研究,以评估M-MDTC纳米药物的瘤杀伤能力,固体瘤抑制和免疫细胞死亡诱导.
主要成果:
- M-MDTC纳米药物在瘤部位上成功积累,并触发了高度有毒的CuET复合物的局部形成.
- 生成的CuET复合物有效地在现场杀死瘤细胞并诱导免疫细胞死亡,其特征是增加CD86+CD80+细胞和增强树突细胞成熟.
- 在体外和体外实验都证实了M-MDTC纳米药物具有出色的瘤细胞杀伤能力和显著的固体瘤抑制.
结论:
- 开发的M-MDTC纳米制药系统有效地利用重新使用的二硫和铜用于向癌症治疗.
- 这种方法使得瘤微环境中的化疗在现场放大,从而产生强大的抗瘤效应.
- 该战略通过利用现有的药物和先进的纳米技术,为开发有效和替代性癌症治疗提供了重大前景.
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