全小分子超分子凝 结合自传递和ROS响应释放,用于抑制瘤生长和术后复发
Linjun Zou1, Yong Hou2, Xueqiang Nie1
1Key Laboratory of Bioactive Substances and Resource Utilization of Chinese Herbal Medicine, Ministry of Education; State Key Laboratory of Bioactive Substance and Function of Natural Medicines; Institute of Medicinal Plant Development, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing 100193, China.
ACS applied materials & interfaces
|February 24, 2025
概括
这项研究引入了一种用于乳腺癌治疗的新型超分子凝. 基于塞拉斯特的水凝有效向瘤,减少复发,并最大限度地减少副作用,提供了一个有前途的新治疗策略.
科学领域:
- 生物材料科学 生物材料科学
- 癌症治疗 癌症治疗
- 药物输送系统 药物输送系统
背景情况:
- 高分子水凝在生物医学应用中具有优势.
- 生物活性分子,如塞拉斯特,在形成理想的水凝方面面临着挑战.
- 开发用于癌症治疗的有效药物输送系统仍然至关重要.
研究的目的:
- 为了构建一个新型的超分子凝,使用塞拉斯特进行增强的癌症治疗.
- 研究水凝在向和消灭癌细胞中的作用机制.
- 在临床前癌症模型中评估水凝的疗效和安全性.
主要方法:
- 使用动态共价方法合成了烯基基乙烯酸-瓜诺辛 (DHcelPBG) 超分子水凝.
- 通过PI3K/Akt信号通路评估DHcelPBG水凝对4T1细胞亡的影响.
- 在体内研究中使用了正位4T1瘤和术后复发模型来评估治疗疗效和安全性.
主要成果:
- 通过调节PI3K/Akt通路,DHcelPBG水凝有效诱导了4T1细胞的亡.
- 水凝证明了自我递送和ROS促进释放,在ROS丰富的微环境中增强了瘤细胞的杀死.
- 在体内,DHcelPBG水凝显著抑制瘤生长,防止复发和转移,并显示出良好的生物相容性和可降解性,而不会损害健康组织.
结论:
- 该DHcelPBG水凝作为ROS响应的,用于局部乳腺癌治疗的自发平台.
- 这种综合系统显示出强大的抗瘤活性,并减少了副作用.
- 该DHcelPBG水凝显示出在癌症治疗中临床翻译的重大潜力.
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