干细胞治疗1型糖尿病的现状:批评和前性考虑
Mohamed A Ghoneim1, Mahmoud M Gabr2, Sawsan M El-Halawani2
1The Urology and Nephrology Center, Mansoura, Egypt. ghoneimma@yahoo.com.
Stem cell research & therapy
|January 28, 2024
概括
治疗糖尿病的细胞疗法看起来很有前途,但面临着免疫排斥等挑战. 介酶干细胞及其外体提供了潜在的替代品,受过教育的外体显示出优越的治疗前景.
科学领域:
- 再生医学是一种再生医学.
- 内分泌学 在内分泌学.
- 免疫学 免疫学 免疫学
背景情况:
- 胰岛素依赖糖尿病的细胞疗法已经取得了进展,但仍面临重大障碍.
- 目前使用差异化干细胞的方法具有免疫性和潜在的原性,需要免疫抑制或免疫隔离.
- 基因改造的目标是免疫规避,但需要安全验证.
研究的目的:
- 探索介质干细胞/干细胞 (MSCs) 作为糖尿病细胞治疗的替代方案.
- 研究MSC和胰岛素生成细胞衍生的外体的治疗潜力,用于糖尿病治疗.
主要方法:
- 开发用于将多能干细胞分化为产生胰岛素的细胞的协议.
- 利用遗传修饰来创造免疫逃避细胞.
- 向分化MSCs成产生胰岛素的细胞.
- 实验性移植全基性MSC衍生的胰岛素产生细胞.
- 在动物模型中分析从天真的MSC中衍生出来的外体对治疗效果的分析.
主要成果:
- 分化干细胞在动物模型中显示出有效性,但存在免疫性和性风险.
- 移植的全基MSC衍生的胰岛素生成细胞表现出由于MSC的免疫调节特性而变得无效的全基反应.
- 来自天真MSC的外体细胞在动物中表现出一些好处,包括降低胰岛素抵抗和增加调节性T细胞,但没有达到euglycemia.
结论:
- 由于MSC的分化能力和免疫调节作用,MSC为糖尿病细胞治疗提供了可行的替代方案.
- 来自MSCs的外体显示出治疗前景,但它们的有效性有限.
- 由β细胞或胰岛素生成细胞衍生出来的受过培养的外体被假设与来自未分化细胞的外体相比,具有更高的治疗效益.
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