工程重定向NF-κB/OIP5表达程序,以增强膀癌中瘤对化疗的反应
Binbin Zheng1, Liman Niu1, Haibo Xu1
1Department of Urology, Shenzhen Institute of Translational Medicine, Shenzhen Second People's Hospital, The First Affiliated Hospital of Shenzhen University, International Cancer Center of Shenzhen University, Shenzhen 518039, China; Shenzhen Institute of Synthetic Biology, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China.
Science bulletin
|November 22, 2023
概括
工程CRISPR系统重新编程膀癌细胞通过准Opa相互作用蛋白5 (OIP5) 来克服药物耐药性. 这种合成生物学方法与纳米颗粒相结合,增强了化疗对瘤的有效性.
科学领域:
- 合成生物学 合成生物学
- 癌症研究 癌症研究
- 分子瘤学分子瘤学
背景情况:
- 核因子kappa-B (NF-κB) 是参与瘤抗药性基因的关键调节者.
- 奥帕相互作用蛋白5 (OIP5) 是由NF-κB上调调节的,并有助于膀癌中的温克里斯 (VCR) 耐药性.
研究的目的:
- 开发一种使用CRISPR技术的可编程系统,使膀癌细胞对化疗重新敏感.
- 调查OIP5在NF-κB介导的耐药性中的作用,并设计一个系统来抵消它.
主要方法:
- 设计了一种基于CRISPR的合成表达策略,使用工程指导RNA (sgRNAs) 与NF-κB吸收体.
- 构建了一个模块化的支架RNA,以集成NF-κB结合和OIP5向.
- 开发了一种纳米粒子系统,用于共同传递CRISPR支架RNA和VCR.
主要成果:
- 工程CRISPR支架RNA成功结合激活NF-κB作为对VCR的反应.
- NF-κB被重定向以减弱OIP5的表达,从而扭转了其对抗性的作用.
- 该系统有效地阻止了多个NF-κB介导的耐药性途径,挫败了耐药性.
- 通过纳米颗粒的同时递送在体外和体内都显示出强大的抗瘤作用.
结论:
- 工程CRISPR系统可以被编程来重新配置细胞药物反应并克服化疗耐药性.
- 这种合成生物学方法提供了一种新的策略,可以增强瘤细胞对VCR和潜在的其他化疗药物的敏感性.
- 通过纳米粒子介导的CRISPR和药物的联合输送为膀癌提供了一个有前途的治疗组合.
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