包含光自组合金属循环的独特聚合物的抗瘤活性
Guocan Yu1, Mingming Zhang2, Manik Lal Saha2
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
|October 12, 2017
概括
这项研究引入了基于的新型超分子协调复合物用于癌症治疗. 这些自组装的纳米颗粒显示出强大的抗瘤活性和受控的药物释放,为癌症治疗提供了有前途的新方法.
科学领域:
- 超分子化学
- 材料科学
- 纳米技术
- 癌症生物学
背景情况:
- 基复合物已知具有抗癌活性,但它们的超分子协调复合物尚未得到研究.
- 开发新的药物输送系统对于提高癌症治疗效率和减少副作用至关重要.
研究的目的:
- 合成和描述一种含的新型两共聚物,用于自组装成纳米粒子.
- 研究纳米粒子形态和大小对细胞吸收和细胞毒性的影响.
- 从这些纳米颗粒中评估药物和多克索鲁比辛 (DOX) 的协同抗癌效应.
主要方法:
- 一种四臂两共聚物 (Pt-PAZMB-b-POEGMA) 的合成,其中包含抗癌药物 (PhenPt) 和聚合诱导的发射探针.
- 在不同的条件下将共聚物自组装成纳米粒子和囊泡.
- 在体外研究以评估细胞吸收,内细胞通路和细胞毒性.
- 封装多克索鲁比辛 (DOX) 和对药物释放机制的研究.
- 在体内评估抗瘤性能和全身毒性.
主要成果:
- 这种共聚物自组装成纳米粒子 (约. 50 nm) 和囊泡.
- 纳米粒子的大小和形态影响了细胞吸收途径,速率和内化量.
- 含有DOX的纳米粒子显示出协同作用的抗癌效应.
- 通过谷氨触发的药物释放得到控制.
- 含有DOX的纳米颗粒具有显著的抗瘤功效,具有较低的全身毒性,这归因于增强的透性和保留效应 (EPR).
结论:
- 基于的新型超分子组件可以有效设计用于癌症治疗.
- 这种自组装的纳米颗粒为类药物和DOX等化疗药物提供了多功能平台.
- 这些系统有望提高抗瘤性能和降低全身毒性,因此需要进一步研究临床转化.
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