生产氧气和响应pH的向DNA纳米花用于增强肺癌化学声动疗法
Hongjian Liao1,2, Yuchao Cao1,2, Can Hu1,2
1State Key Laboratory of Ultrasound in Medicine and Engineering, College of Biomedical Engineering, Chongqing Medical University, Chongqing, 400016, China.
Materials today. Bio
|March 6, 2024
概括
这项研究介绍了用于肺癌治疗的DNA纳米花. 这些向的纳米结构提供化疗和缓解瘤缺氧,提高治疗效率和抑制癌症生长.
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:
- 肺癌是全球癌症相关死亡的主要原因之一.
- 瘤缺氧损害了化疗的有效性,并限制了治疗选择.
- 开发新的药物输送系统对于克服治疗耐药性至关重要.
研究的目的:
- 设计和评估针对性DNA纳米花系统,用于增强肺癌治疗.
- 解决瘤缺氧问题,提高化疗和声动疗疗法的疗效.
- 研究开发的纳米载体的药物加载,释放,向和治疗效果.
主要方法:
- 制造DNA纳米花封装多克索鲁比辛和胡卜过氧化酶 (DOX/HRP-DFs).
- 整合AS1411的阿帕特马为增强瘤向.
- 对药物加载效率,酸触发药物释放和低氧减轻的评估.
- 评估体外和体内治疗疗效,包括瘤生长抑制和转移抑制.
主要成果:
- 在DNA纳米花中,达到了73.24±3.45%的多克索鲁比辛加载率.
- 在酸性瘤微环境中观察到快速释放药物.
- AS1411胺酶促进了向性药物输送到瘤细胞,改善了药物度.
- 显著缓解瘤缺氧被证明,增强反应性氧物种的生成,用于声动力学治疗.
- *在体外*和体内*的研究显示,瘤生长和转移的实质性抑制.
结论:
- 开发的DOX/HRP-DFs代表了肺癌治疗的有前途的纳米载体.
- 这个系统有效地准瘤,在对微环境的反应中释放药物,并对抗缺氧.
- 通过DNA纳米花的化学疗法和声动疗法的协同组合为改善肺癌结果提供了一个强有力的策略.
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