PEGylated mesoporous silica核心-shell对氧化还原反应的纳米颗粒,用于将帕克利塔塞尔输送到乳腺癌细胞中
Saeed Shahbaz1, Mahta Esmaeili2, Mohammad Hosein Fathian Nasab2
1Nanotechnology Research Centre, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran; Department of Pharmaceutics, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran.
International journal of pharmaceutics
|March 27, 2024
概括
这项研究开发了用于向乳腺癌治疗的氧化还原反应纳米粒子. 药物输送系统证明了可控的帕克利塔塞尔释放,增强细胞吸收和有效的癌细胞亡诱导.
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
- 纳米技术 纳米技术
背景情况:
- 控制药物释放并最大限度地减少健康器官的非目标效应对于有效的癌症治疗至关重要.
- 半孔纳米粒子 (MSN) 提供了一个多功能平台,用于药物输送,因为它们的高表面积和可调节的多孔性.
研究的目的:
- 设计和表征一种基于半孔纳米颗粒的氧化还原反应药物递送系统,用于向乳腺癌治疗.
- 评估药物释放动力学,细胞吸收和开发的纳米颗粒在MCF-7乳腺癌细胞中的治疗疗效.
主要方法:
- 合成含有帕克利塔塞尔的MSN核心,涂上与二硫化物结合的二氧化外和聚乙烯糖醇 (PEG).
- 使用DLS,泽塔潜力,XRD,FTIR,TEM和SEM进行物理化学表征.
- 在不同的谷氨 (GSH) 度下药物释放的体外评估,通过CLSM和流细胞计进行细胞吸收,并使用MTT测定和流细胞计诱导细胞亡.
主要成果:
- 开发的纳米粒子表现出氧化还原反应性药物释放,在更高的GSH度下观察到帕克利塔塞尔释放的增加.
- 证实了MCF-7细胞对纳米颗粒的增强细胞吸收.
- 这些纳米颗粒有效地诱导了MCF-7细胞的亡,显示出显著的抗癌活性.
结论:
- 开发的氧化还原反应纳米颗粒显示出作为乳腺癌治疗有效药物输送系统的前景.
- 双硫化物键介导的药物释放机制允许在瘤微环境中向输送和控制释放帕克利塔塞尔.
- 该系统有可能改善治疗结果,并减少乳腺癌治疗中的副作用.
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