提高化疗药物的抗癌效果,使用向合体功能化合成抗原受体-半机体干细胞
Susheel Kumar Nethi1, Xiaolei Li1, Shubhmita Bhatnagar2
1Fels Cancer Institute for Personalized Medicine, Lewis-Katz School of Medicine, Temple University, Philadelphia, PA 19140, USA.
Pharmaceutics
|June 28, 2023
概括
用抗EGFR抗体增强介质干细胞 (MSC) 改善了它们对非小细胞肺癌 (NSCLC) 的瘤向. 这种策略增加了治疗保留率,并减缓了瘤生长,为癌症治疗提供了有前途的方法.
科学领域:
- 生物医学工程 生物医学工程
- 癌症生物学 癌症生物学
- 细胞疗法细胞疗法
背景情况:
- 介酶干细胞 (MSCs) 具有固有的瘤定位能力,使其对向药物输送具有吸引力.
- 增强MSCs的瘤特异性结合和保留对于提高治疗疗效至关重要.
- 表皮生长因子受体 (EGFR) 在许多非小细胞肺癌 (NSCLC) 中过度表达.
研究的目的:
- 通过用抗EGFR抗体功能化MSC的表面来增强MSC的瘤向有效性.
- 在临床前NSCLC模型中评估装载着帕克利塔塞尔纳米颗粒的EGFR向MSC的疗效.
主要方法:
- 通过使用蛋白G抗体结合策略,MSCs被表面功能化.
- 针对EGFR的抗体 (cetuximab和D8) 用于功能化.
- 功能化MSC的疗效和生物分布在NSCLC的小鼠模型中进行了评估,包括A549肺腺癌外移植.
主要成果:
- 塞图西马布功能化的MSC显示对EGFR蛋白和EGFR过度表达的A549细胞的结合增强.
- 用 cetuximab 功能化并装载着 paclitaxel 纳米颗粒的 MSC 显著减缓了正型 A549 瘤的生长.
- 生物分布研究表明,与非向性MSC相比,EGFR向性MSC在瘤中的保留率增加了6倍.
- 在用EGFR向的MSCs和包利塔塞尔纳米颗粒治疗组中,整体存活率有所改善.
结论:
- 用向配体,如抗EGFR抗体,对MSC的表面功能化显著增强了它们在瘤部位的积累.
- 这种有针对性的方法改善了NSCLC模型中的抗瘤反应和治疗结果.
- 干功能化MSCs代表了增强癌症治疗药物的交付和疗效的有希望的平台.
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