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自组装的多价值阿帕特默药物结合物:增强针对性和细胞毒性,用于HER2阳性胃癌

Wenjuan Ma^1,2,3, Yuting Yang^1,2, Zhiqiang Liu^1,2

¹State Key Laboratory of Oral Diseases, National Center for Stomatology, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, P. R. China.

ACS applied materials & interfaces

|September 6, 2023

概括

研究人员开发了一种名为HApt-tFNA@Dxd.d的新型DNA吸收器引导药物合物 (ApDC). 这种纳米药物显示了对HER2阳性癌症的改善输送和疗效,解决了传统抗体药物合物 (ADC) 的局限性.

科学领域:

生物技术是生物技术.
纳米医学是一种纳米医学.
癌症治疗方法癌症治疗方法

背景情况:

抗体药物合物 (ADC) 对HER2阳性癌症有前途,但在药物输送,疗效和耐药性方面面临挑战.
导向DNA体的药物联合体 (ApDCs) 提供特定的瘤向,具有高亲和力和较低的成本.

研究的目的:

开发一种多价值的ApDC纳米药物,结合抗HER2的阿帕特 (HApt),四面体框架核酸 (tFNA) 和德鲁克斯 (Dxd) 来克服ADC的局限性.
提高药物载荷能力和针对HER2阳性癌症的向药物输送.

主要方法:

通过将HER2向DNA向体与装载着deruxtecan的DNA四面体纳米载体集成HApt-tFNA@Dxd.
与自由Dxd和tFNA@Dxd相比,评估了HApt-tFNA@Dxd的结构稳定性,向性细胞毒性和瘤组织聚合.

主要成果:

HApt-tFNA@Dxd显示出优越的结构稳定性和针对HER2阳性胃癌细胞的增强向性细胞毒性.
这种纳米药物在瘤内增加了组织聚合,表明药物输送效率有所提高.
与之前报告的aptamer引导的ApDC相比,DNA四面体载体促进了更高的药物加载率.

结论:

HApt-tFNA@Dxd代表了治疗HER2阳性瘤的有前途的纳米药物,提供了更好的疗效和有针对性的治疗.
这项研究通过将DNA纳米结构与化疗药物相结合,推动了用于癌症治疗的基于DNA的纳米材料的开发.

关键词:

DNA是四面体的四面体.有HER2阳性的胃癌.抗HER2 合酶的抗HER2 合酶.亚普塔默是药物联合体中的一种.德鲁克斯可以.

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