超分子聚合物基纳米医学:高疗效和微不足道的长期免疫毒性
Guocan Yu1, Xinlian Zhao, Jiong Zhou
1Laboratory of Molecular Imaging and Nanomedicine , National Institute of Biomedical Imaging and Bioengineering, National Institutes of Health , Bethesda , Maryland 20892 , United States.
Journal of the American Chemical Society
|June 7, 2018
概括
这项研究引入了一种用于癌症治疗的新型超分子聚合物. 开发的纳米药物增强了药物溶解性,向瘤,并最大限度地降低了系统性免疫毒性,显示出有前途的抗瘤和抗转移能力.
科学领域:
- 超分子化学
- 纳米技术
- 癌症治疗学
背景情况:
- 纳米药物在癌症治疗中表现有前途,但往往受到忽视的免疫毒性,限制了临床转化.
- 坎普托西因 (CPT) 是一种有效的抗癌药物,但溶解性和稳定性问题较差.
- 开发安全有效的纳米药物需要解决药物的溶解性,稳定性,向输送和全身毒性问题.
研究的目的:
- 开发一种创新型超分子聚合物,用于改善癌症治疗.
- 通过超分子方法提高坎普托他辛 (CPT) 的可溶性和稳定性.
- 制造一种针对瘤的纳米药物, 尽量减少系统性毒性,
主要方法:
- 合成了一种超分子聚合物,使用β-环氧 (宿主) 和camptothecin (客人) 通过一种可裂解硫化键连接.
- 通过π-π堆叠,宿主-客人复合和键形成超分子纳米粒子的直角自组.
- 在体内评估了纳米药物的可溶性,稳定性,瘤向性,药物释放动力学,全身毒性,抗瘤功效和抗转移潜力.
主要成果:
- 超分子聚合增加了232倍的CPT溶解度,并阻止了乳环的开放.
- 自组装的超分子纳米颗粒显示出有效的瘤向和药物释放后的快速分泌.
- 在体内研究证实了优异的抗瘤性能和抗转移能力,避免了全身免疫毒性.
结论:
- 通过克服CPT的局限性,开发的超分子纳米医学为癌症治疗提供了一个有前途的平台.
- 这种方法有效地整合了超分子化学和纳米技术,以提高治疗效率和安全性.
- 超分子聚合物的动态性为开发先进的癌症纳米疗法提供了通用策略.
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