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用LNP-RNA工程的脂肪干细胞加速糖尿病伤口愈合

Yonger Xue^1,2, Yuebao Zhang¹, Yichen Zhong^1,2

¹Division of Pharmaceutics & Pharmacology, College of Pharmacy, The Ohio State University, Columbus, OH, USA.

Nature communications

|January 25, 2024

概括

新的脂质纳米颗粒 (LNPs) 工程脂肪干细胞 (ASCs) 增强组织再生. 这些工程 ASC 持续分泌治疗性蛋白质,在糖尿病模型中显著改善伤口愈合.

科学领域:

生物技术是生物技术.
再生医学是一种再生医学.
细胞疗法细胞疗法

背景情况:

脂肪干细胞 (ASC) 显示了组织再生的治疗潜力.
ASCs有限的蛋白质分泌能力阻碍了最佳的治疗结果.
制定提高ASC再生能力的策略至关重要.

研究的目的:

使用脂质纳米粒子 (LNPs) 设计具有持久蛋白质分泌能力的ASC.
提高ASC的组织工程和再生能力.
在糖尿病伤口模型中评估工程ASC的治疗疗效.

主要方法:

开发异曼尼德衍生脂质纳米颗粒 (DIM1T LNP) 用于RNA输送.
与自放大RNA (saRNA) 和E3mRNA复合体 (SEC) 同时传递给ASC.
在体外描述DIM1T LNP介导的RNA输送和蛋白质表达.
在糖尿病皮肤伤口模型中对工程 ASC (DS-ASC) 的体内评估.

主要成果:

DIM1T LNP有效地将RNA传递给ASCs.
DIM1T LNP-SEC促进了蛋白质的持续生产,包括肝细胞生长因子 (HGF) 和C-X-C动机化学因子连接体12 (CXCL12).
工程 ASCs (DS-ASCs) 在糖尿病小鼠中表现出优异的伤口愈合效果,与对照小鼠相比.

结论:

脂质纳米颗粒为工程ASC提供了一个有效的平台.
工程ASCs表现出增强的蛋白质生成和改善的治疗潜力.
这种方法加速了基于ASC的细胞疗法的开发,用于再生医学.

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