响应pH的氧气自给自足的智能纳米平台,用于增强瘤化疗和光动力疗法
Xinhe Liu1, Xin Wang1, Dan Zang2
1School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China.
Journal of colloid and interface science
|July 17, 2024
概括
这项研究引入了用于癌症治疗的智能纳米平台,通过控制药物释放和产生氧气来改善化疗和光动力疗法 (PDT). 这种新系统有效地对抗瘤缺氧和药物过早泄漏,提高治疗效率.
科学领域:
- 生物医学工程 生物医学工程
- 纳米技术纳米技术
- 在瘤学瘤学.
背景情况:
- 药物过早释放和瘤缺氧限制化疗和光动力疗法 (PDT) 的疗效.
- 开发可控制的药物释放系统和氧气生成策略对于先进的瘤治疗至关重要.
研究的目的:
- 制造一个pH响应,氧气自给自足的纳米平台 (DHCCC),用于增强化学光动力学治疗.
- 为了解决过早的药物泄漏和瘤微环境 (TME) 缺氧.
主要方法:
- 集成空洞的半孔性二氧化纳米颗粒 (HMSNs),奇托 (CS),多克索鲁比辛化 (DOX),e6 (Ce6) 和酶 (CAT).
- 在酸性TME中利用CS的pH响应来控制DOX释放.
- 使用CAT催化内源性过氧化转化为氧气,缓解缺氧.
主要成果:
- DHCCC纳米平台证明了DOX的受控释放,增强了化疗.
- 在CAT的位置氧气生成有效地减轻了瘤缺氧,促进了PDT.
- 使用DHCCC的联合化疗-光动力学疗法与单一疗法相比,在体外和体内显示出更高的抗瘤疗效.
结论:
- 开发的DHCCC纳米平台为高效的瘤治疗提供了一个有前途的战略.
- 这种适应pH值,产生氧气的纳米药物克服了药物过早泄漏和缺氧的挑战.
- 这项研究为设计先进的纳米药物提供了灵感,以改善癌症治疗结果.
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