用于智能药物释放和光热增强化学动力学治疗的半孔多多巴胺输送系统,使用MnO作为守门员
Zhaoyang Wang1, Zekai Li1, Yuehua Shi1
1Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of the Ministry of Education, Chemical Biology Key Laboratory of Hebei Province, State Key Laboratory of New Pharmaceutical Preparations and Excipients, College of Chemistry and Materials Science, Hebei University, Baoding 071002, P.R. China.
Regenerative biomaterials
|November 8, 2023
概括
这项研究开发了一种二氧化涂层的半孔多多巴胺纳米平台,用于智能药物输送. 它精确地控制多克索鲁比辛的释放,将化疗与光热和化学动力疗法结合起来,以增强抗瘤效果.
科学领域:
- 生物医学工程 生物医学工程
- 材料科学 材料科学 材料科学
- 在瘤学瘤学.
背景情况:
- 来自纳米载体的非特异性药物泄漏损害了化疗的安全性和有效性.
- 响应瘤微环境 (TME) 的纳米载体对于控制药物释放至关重要.
- 开发智能纳米平台对于先进的癌症治疗至关重要.
研究的目的:
- 开发一种智能纳米平台,用于精确控制药物输送.
- 将化疗与光热疗法 (PTT) 和化学动力疗法 (CDT) 结合起来,以提高抗瘤疗效.
- 利用瘤微环境触发药物释放和协同疗法.
主要方法:
- 用二氧化 (MnO2) 作为守门员涂层的半孔多多巴胺 (MPDA) 纳米平台的制造.
- 将多克索鲁比辛 (DOX) 装入MPDA纳米载体.
- 在正常生理条件下评估MnO2的稳定性及其在TME中由于谷氨 (GSH) 的降解.
- 对联合化疗,PTT (通过MPDA光热效应) 和CDT (通过Mn2+芬顿式反应) 的评估.
主要成果:
- 在正常生理环境下,MnO2外有效地防止了过早的DOX泄漏.
- 在TME中过度表达的谷氨 (GSH) 降解了MnO2外,触发了DOX的释放.
- 该MPDA-DOX@MnO2纳米平台通过结合CDT,PTT和化疗,证明了协同作用的抗瘤效应.
- 该纳米平台表现出高安全性和抗瘤有效性.
结论:
- 开发的MPDA-DOX@MnO2纳米平台提供智能,对TME有反应的药物输送.
- 化疗,PTT和CDT的组合提供了一个高度有效和安全的抗瘤策略.
- 这种方法克服了传统化疗中非特异性药物泄漏的局限性.
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