工程化IRES介导的无促体胰岛素生成细胞可以逆转高血糖症
Yumin Li1, Doulathunnisa Ahamed Younis1,2, Cong He1,3
1State Key Laboratory of Digital Medical Engineering, School of Biological Science and Medical Engineering, Southeast University, Nanjing, Jiangsu, China.
Frontiers in endocrinology
|September 16, 2024
概括
工程非内分泌细胞现在可以分泌胰岛素,为1型糖尿病 (T1D) 提供了新的治疗方法. 这种新的基因编辑方法成功地逆转了糖尿病小鼠的高血糖症,显示了改善糖尿病治疗的潜力.
科学领域:
- 生物技术是生物技术.
- 基因工程是一种基因工程.
- 糖尿病研究 糖尿病研究
背景情况:
- 1型糖尿病 (T1D) 需要内源性胰岛素,但目前的治疗方法有局限性.
- 工程细胞分泌胰岛素为T1D提供了一个有前途的治疗策略.
- 这种方法可以克服与β细胞移植或病毒载体所见的自身免疫问题.
研究的目的:
- 使用CRISPR/Cas9基因编辑开发能够分泌胰岛素的工程细胞.
- 评估微载体上工程细胞的活力和功能.
- 评估这些工程细胞在T1D小鼠模型中的治疗潜力.
主要方法:
- 使用CRISPR/Cas9和同质导向修复 (HDR),将胰岛素带插入HEK-293T细胞中.
- 量化了GelMA和Cytopore I微载体上的胰岛素表达,细胞活力和功能.
- 研究了工程细胞在逆转T1D小鼠高血糖的疗效.
主要成果:
- HDR成功地将胰岛素循环整合到HEK-293T细胞中,使胰岛素表达成为可能.
- 细胞孔I微载体支持细胞生存和细胞增殖在体外和移植后.
- 移植的细胞形成了稳定的结构,没有显著的免疫排斥,在糖尿病小鼠中逆转高血糖症.
结论:
- 细胞孔I微载体是生物相容的,可以增强细胞生存in vivo.
- 无促进体胰岛素循环允许非内分泌细胞分泌胰岛素,迅速降低葡萄糖水平.
- 这项研究提出了用于糖尿病治疗的新型基因编辑策略和移植方法,扩大了潜在的细胞来源.
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