开发载有塞拉斯特的双向混合菌体和对三阴性乳腺癌治疗的评估
Siying Huang1, Simeng Xiao1, Xuehao Li1
1Pharmacy Faculty, Hubei University of Chinese Medicine, Wuhan 430065, China.
Pharmaceutics
|September 28, 2024
概括
这项研究开发了一种新的双向纳米粒子系统,用于将Celastrol (Cst) 输送到线粒体,通过改善细胞吸收和诱导线粒体功能障碍,提高其对三阴性乳腺癌 (TNBC) 的疗效.
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:
- 塞拉斯 (Cst) 显示出治疗三阴性乳腺癌 (TNBC) 的潜力.
- 针对性地将Cst输送到线粒体对于通过诱导线粒体功能障碍来增强其治疗效果至关重要.
- 需要一种新的纳米系统来克服Cst的局限性,并改善其向TNBC细胞的传递.
研究的目的:
- 为了制造和表征一种新的瘤线粒体双重向混合细胞纳米系统,用于传递塞拉斯 (Cst).
- 在TNBC模型中评估Cst装载纳米系统的增强细胞吸收,线粒体运输和治疗疗效.
主要方法:
- 使用三基改性胆固醇 (TPP-Chol) 和酸 (HA) 改性胆固醇 (HA-Chol) 与Cst (Cst@HA/TPP-M) 共同装载的混合的制造.
- 粒子大小,表面潜力,药物负载和释放动力学的表征.
- 使用MDA-MB-231细胞进行体外研究,以评估细胞吸收,内溶酶体逃逸,线粒体运输,ROS水平,线粒体膜潜力和亡.
- 使用携带瘤的裸体小鼠进行生物分布,抗瘤疗效和安全性评估的体内研究.
主要成果:
- Cst@HA/TPP-M显示了小颗粒大小,高药物负载 (22.8%) 和持续释放.
- 与单独的TPP-Chol菌根相比,纳米系统在体内稳定性和安全性得到改善,血液溶解减少.
- Cst@HA/TPP-M通过CD44受体介导的细胞内和促进线粒体运输显著增强了细胞吸收,导致ROS升高,线粒体膜潜力降低和TNBC细胞中亡的增加.
- 在体内研究证实增强瘤积累,减少系统分布,并改善了Cst.的抗瘤疗效.
结论:
- 开发的双向混合小细胞纳米系统 (Cst@HA/TPP-M) 能够有效地将塞拉斯特输送到瘤线粒体.
- 这一策略通过改善向和诱导线粒体功能障碍,提高了Cst对三阴性乳腺癌的疗效.
- 共同构建的TPP-Chol和HA-Chol菌为改善TNBC治疗治疗结果提供了一个有希望的方法.
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