双重向的细胞外囊泡调节晚期胰腺癌中的致癌基因
Chi-Ling Chiang1,2, Yifan Ma1,3, Ya-Chin Hou4,5
1Department of Chemical and Biomolecular Engineering, The Ohio State University, Columbus, OH, 43210, USA.
Nature communications
|October 23, 2023
概括
双重向的细胞外囊泡 (dtEVs) 有效地提供治疗性RNA来抑制胰腺管道腺癌 (PDAC) 瘤. 这种新型药物输送系统在治疗大型固体瘤和改善患者存活率方面表现有前途.
科学领域:
- 在瘤学瘤学.
- 生物技术是生物技术.
- 纳米医学是一种纳米医学.
背景情况:
- 胰腺管道腺癌 (PDAC) 由于多种基因突变和治疗反应不佳而构成重大临床挑战.
- 现有的药物输送系统很难有效地准和治疗PDAC特征的大型固体瘤负担.
研究的目的:
- 开发和评估一种新的双向细胞外囊泡 (dtEV) 系统,用于向PDAC瘤传递多个基因载荷.
- 在临床前模型中评估dTEVs在抑制大型PDAC瘤和转移中的有效性.
主要方法:
- 工程外细胞囊泡 (EVs) 含有CD64蛋白,组织向和其表面的人性化单克隆抗体.
- 基于Transwell®的不对称细胞电解,用于高RNA负载和高效的EV生产.
- 使用dTEVs和低剂量gemcitabine的组合疗法在正体PANC-1和患者衍生的异种移植小鼠模型中.
主要成果:
- 成功地产生了大量的有针对性的EV,具有高的治疗性RNA负载.
- 在小鼠中显著抑制了大型正位体PDAC瘤和转移.
- 在用dTEVs和gemcitabine治疗时观察到动物延长生存时间.
结论:
- 双重向的细胞外囊泡提供了一个临床上可访问和可扩展的平台,用于向固体瘤提供多种基因疗法.
- 这种方法显示出克服胰腺癌治疗耐药性的巨大潜力.
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