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针对BCMA的博特佐米布纳米疗法提高了治疗效果,克服了耐药性,并调节了多发性骨髓瘤中的免疫微环境

Debasmita Dutta¹, Jiye Liu¹, Kenneth Wen¹

¹Department of Medical Oncology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA, USA.

Blood cancer journal

|December 10, 2023

概括

携带博尔特佐米布 (BTZ) 和准BCMA的新纳米颗粒显示出对多发性骨髓瘤 (MM) 的有效性有所提高. 这些针对BCMA的BTZ纳米粒子克服了耐药性,并在临床前模型中改善了治疗结果.

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:

博尔特佐米布 (BTZ) 是多发性骨髓瘤 (MM) 的基石疗法,但其有效性受到副作用和获得的耐药性限制.
开发有针对性的药物输送系统可以增强BTZ的特异性,克服抗药机制.

研究的目的:

设计和评估新的纳米颗粒表面功能化与BCMA抗体,封装BTZ (BCMA-BTZ-NPs),以改善MM治疗.
评估BCMA-BTZ-NPs的细胞吸收,细胞毒性,抗性克服潜力和体内疗效.

主要方法:

合成BCMA-抗体功能化纳米颗粒封装BTZ.
在BCMA表达和淘汰的MM细胞中细胞内部化的体外评估.
评估MM细胞系和患者衍生细胞中的细胞毒性,亡诱导和蛋白质酶抑制.
使用小鼠异种移植模型进行体内研究,以评估瘤积累,减少和存活率.

主要成果:

BCMA-BTZ-NPs在BCMA阳性MM细胞中表现出特定的细胞吸收,绕过P-糖蛋白介导的抗性.
这些纳米颗粒表现出优异的细胞毒性,并比自由BTZ或非向纳米颗粒更有效地诱导了亡.
在体内,BCMA-BTZ-NPs选择性地向瘤,增强瘤减少,并延长宿主存活时间.
BCMA-BTZ-NPs还增强了免疫细胞死亡,并激活了自.

结论:

BCMA-BTZ-NP代表了对多发性骨髓瘤的有希望的向治疗策略,增强了BTZ的有效性并克服了耐药性.
这种基于纳米粒子的方法为MM患者的进一步临床评估提供了框架.

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