自组装蛋白质纳米粒子用于核酸和蛋白质的细胞溶液输送
Feyisayo Eweje1,2,3,4, Vanessa Ibrahim1, Aram Shajii1
1Department of Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA.
Nature biotechnology
|May 15, 2025
概括
研究人员开发出基于弹性质的纳米粒子 (ENTER),以有效地在细胞内输送生物大分子. 这种新的系统通过克服低效率和细胞毒性问题来改善治疗效果,对基因编辑应用显示出希望.
科学领域:
- 生物技术是生物技术.
- 纳米医学是一种纳米医学.
- 分子生物学分子生物学
背景情况:
- 生物巨分子的细胞内传递面临着效率和细胞毒性方面的挑战.
- 现有的输送系统往往难以有效地将治疗有效载荷运送到细胞细胞底.
研究的目的:
- 开发一种基于弹性质的新型纳米粒子系统,用于增强生物大分子的细胞内传递.
- 创建一种基于复合性弹性素样多 (ELP) 的输送载体,能够在体外和体内有效地输送细胞质物质.
主要方法:
- 第四代ELP的代设计与阴离体内体逃生 (EEP) 融合.
- 开发能够自组装的pH响应性菌根纳米粒子.
- 库的in silico选以确定最佳的EEP,包括EEP13.
- 在体外和体内测试ELP-EEP13用于mRNA,DNA,蛋白质和小RNA的输送.
主要成果:
- 在ELP-EEP13系统证明,在内细胞吸收后,货物的有效细胞溶液进入.
- 与基准相比,EEP13显示蛋白质递送效率提高了48%.
- 对于各种生物大分子,ELP-EEP13表现出与基于脂质的转染试剂相当或优于其性能.
- 在记者小鼠中,通过注射ELP-EEP13与Cre蛋白进行鼻内注射,可以有效地编辑肺上皮细胞.
结论:
- 基于弹性纤维的纳米颗粒 (ENTER) 是一个有前途的平台,可以有效和安全地在细胞内输送治疗性生物大分子.
- 该ELP-EEP13系统有效地向各种细胞类型提供各种有效载荷,包括基因编辑器和RNA.
- 这项技术有可能推进基因疗法和其他基于核酸的治疗方法.
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