Biomaterials:新型选择性纳米颗粒或可用于胶母细胞瘤的治疗

2019-04-27 不详 网络

迫切需要新的治疗胶质母细胞瘤(GBM)的方法,特别是那些可以同时靶向GBM细胞生长和迁移能力的治疗方法。在本文中,我们描述了一种合成的,可生物诱导的,可生物降解的聚合物,其可以将数百种siRNA分子包装并递送到单个纳米颗粒中,促进针对多种GBM促进靶标的组合疗法。结果显示,这些聚合物纳米颗粒递送siRNA具有癌症选择性,从而避免了健康细胞中的潜在副作用。可以同时和在相同的纳米粒子内提供靶向几种抗G

迫切需要新的治疗胶质母细胞瘤(GBM)的方法,特别是那些可以同时靶向GBM细胞生长和迁移能力的治疗方法。在本文中,我们描述了一种合成的,可生物诱导的,可生物降解的聚合物,其可以将数百种siRNA分子包装并递送到单个纳米颗粒中,促进针对多种GBM促进靶标的组合疗法。

结果显示,这些聚合物纳米颗粒递送siRNA具有癌症选择性,从而避免了健康细胞中的潜在副作用。可以同时和在相同的纳米粒子内提供靶向几种抗GBM基因(Robo1,YAP1,NKCC1,EGFR和存活蛋白)的siRNA。Robo1(环状同源物1)通过生物可降解颗粒的siRNA递送被发现引发GBM细胞死亡,NKCC1,EGFR和存活蛋白siRNA的非病毒递送也是如此。最重要的是,将几种抗GBM siRNA组合成纳米颗粒制剂导致高GBM细胞死亡,减少体外GBM迁移,并且在肿瘤内施用后随时间减少肿瘤负荷。我们显示某些基因,如生存素和EGFR,对于GBM存活是重要的,而NKCC1对于癌细胞迁移更为重要。

总之,该研究代表了一种强大的平台技术,有可能成为癌症的多模式治疗药物。

原始出处:

Kozielski KL, Ruiz-Valls A, et al., Cancer-selective nanoparticles for combinatorial siRNA delivery to primary human GBM in vitro and in vivo. Biomaterials. 2019 Apr 12;209:79-87. doi: 10.1016/j.biomaterials.2019.04.020. 

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    2019-09-12 sunylz
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