在乳腺癌的向治疗中使用超声波介导的包利塔塞尔装载EGFR纳米颗粒
Zhenbin Xu1, Hongpeng Duan1, Yuling Shi1,2
1Department of Ultrasonography, The First Affiliated Hospital of Ningbo University China fyyzhangshengmin@nbu.edu.cn.
RSC advances
|July 7, 2025
概括
这项研究引入了用于三阴性乳腺癌 (TNBC) 的包利塔塞尔载纳米粒子 (PTX@TNPs). 结合EGFR向和超声波触发器,这些纳米颗粒可增强药物输送,降低毒性,改善TNBC治疗.
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:
- 三阴性乳腺癌 (TNBC) 具有侵略性,治疗选择有限.
- 传统的帕克利塔克塞尔 (PTX) 治疗面临诸如非特异性分布和全身毒性等挑战.
- 需要先进的药物输送系统来提高TNBC治疗的有效性和安全性.
研究的目的:
- 开发和评估一种多功能纳米载体系统 (PTX@TNPs),用于在TNBC中针对性和超声响应地输送PTX.
- 通过GE11 (向表皮生长因子受体 - EGFR) 和超声响应来改善治疗结果.
- 在TNBC模型中评估PTX@TNPs的物理化学性质,体外细胞效应以及体内疗效和安全性.
主要方法:
- 使用双重乳液法与PLGA制备带有PTX的纳米粒子 (PTX@TNPs),封装PTX和PFP.
- 使用EDC/NHS化学,用GE11向EGFR向纳米颗粒的表面功能化.
- 在体外评估使用MDA-MB-231细胞 (EGFR过度表达) 来评估细胞吸收和细胞毒性,有或没有超声波.
- 在TNBC异种移植小鼠模型中的体内研究,以评估瘤生长抑制,血管生成,亡和全身毒性.
主要成果:
- 鉴定证实了有利的纳米粒子大小,稳定性和药物载荷.
- 实验室研究显示,在EGFR过度表达细胞中,PTX@TNPs的细胞吸收和细胞毒性增强,特别是超声波.
- 在体内研究表明显著的瘤生长抑制,微血管密度降低 (CD31) 和TNBC xenografts治疗PTX@TNPs和超声波的亡增加.
- 与自由PTX相比,使用PTX@TNPs治疗导致系统毒性降低.
结论:
- 开发的PTX@TNPs纳米平台有效地将EGFR介导的活性向与超声波触发的药物释放相结合,用于增强TNBC治疗.
- 协同方法显著提高治疗疗效,降低全身毒性,显示TNBC治疗的翻译潜力.
- 这种纳米载体系统为克服常规化疗在侵袭性乳腺癌亚型中的局限性提供了一个有希望的策略.
更多相关视频
14:10Contrast Ultrasound Targeted Treatment of Gliomas in Mice via Drug-Bearing Nanoparticle Delivery and Microvascular Ablation
Published on: December 15, 2010
16.1K
08:35Therapeutic Gene Delivery and Transfection in Human Pancreatic Cancer Cells using Epidermal Growth Factor Receptor-targeted Gelatin Nanoparticles
Published on: January 4, 2012
28.4K
相关概念视频
Targeted Cancer Therapies
7.8K
The targeted cancer therapies, also known as “molecular targeted therapies,” take advantage of the molecular and genetic differences between the cancer cells and the normal cells. It needs a thorough understanding of the cancer cells to develop drugs that can target specific molecular aspects that drive the growth, progression, and spread of cancer cells without affecting the growth and survival of other normal cells in the body.
There are several types of targeted therapies against...
There are several types of targeted therapies against...
7.8K
Drugs that Stabilize Microtubules
2.1K
Microtubules are dynamic structures that undergo cycles of catastrophe and rescue. The microtubules play a central role in cell division by forming the spindle apparatus for segregating the chromosomes. This makes them ideal targets for regulating dividing cells in tumors and malignant cancer cells. Microtubule stabilizing drugs help stabilize the microtubule formation and promote its polymerization. Paclitaxel was the first microtubule stabilizing agent used as anticancer drug in chemotherapy...
2.1K
