开发适应pH的氨酸结合式环氧德克斯纳米颗粒,用于化学/CO气双重疗法
Eunsol Lee1, Eun Seong Lee1,2
1Department of Biotechnology, The Catholic University of Korea, 43 Jibong-ro, Bucheon-si 14662, Gyeonggi-do, Republic of Korea.
Pharmaceutics
|July 29, 2023
概括
这项研究开发了使用马环极 (γCD) 进行增强抗瘤治疗的双疗法纳米粒子. 这些纳米颗粒提供了帕克利塔塞尔和一种释放气体的铁化合物,由瘤pH和光激活,以改善癌细胞死亡.
科学领域:
- 生物材料科学 生物材料科学
- 纳米技术纳米技术
- 癌症治疗方法 癌症治疗方法
背景情况:
- 开发有针对性的药物输送系统对于有效的癌症治疗至关重要.
- 响应刺激的纳米粒子通过在瘤部位释放药物来提高治疗效果.
- 结合化疗和其他方法,如气疗,可以克服药物耐药性并改善结果.
研究的目的:
- 制造基于马环极 (γCD) 的双重药物载荷纳米粒子,用于联合化疗和气疗.
- 为了设计能够响应酸性瘤微环境和外部光照射的纳米粒子,以向药物释放.
- 评估这些纳米颗粒在增强对CD44表达癌细胞的抗瘤活性方面的有效性.
主要方法:
- 合成基于gCD的纳米粒子与氨酸 (HA) 和对pH反应分子 (DEAP) 结合.
- 在纳米颗粒中封装帕克利塔塞尔 (PTX) 和三铁二二碳 (FeCO).
- 在实验室中对MCF-7瘤细胞中纳米粒子吸收,药物释放和细胞毒性的评估.
- 评估光触发的CO气生成及其对瘤细胞亡的协同作用.
主要成果:
- γCD-(DEAP/HA) 纳米粒子成功制造,并证明了PTX和FeCO的高效联合交付.
- 纳米颗粒显示了pH触发的PTX和FeCO释放,作为对内体酸度的反应.
- 在CD44阳性MCF-7细胞中观察到增强的细胞吸收和亡.
- 当地的光照射显著增强了FeCO的细胞毒性作用,导致瘤细胞死亡的改善.
结论:
- 基于gCD的纳米粒子为双模式抗瘤治疗提供了一个有前途的平台.
- 开发的纳米粒子表现出有针对性的输送和刺激响应的药物释放,增强治疗疗效.
- 化疗和光激活气体治疗的结合是癌症治疗的有效策略.
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