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介酶体 stromal/干细胞在化疗引起的损伤后促进肠上皮的再生
B Yetkin-Arik1,2,3, S A Jansen2,4,5, S Varderidou-Minasian1,2
1Center for Molecular Medicine, University Medical Center Utrecht, Universiteitsweg 100, 3584 CG, Utrecht, The Netherlands.
Stem cell research & therapy
|April 28, 2024
概括
介酶体干细胞 (MSCs) 在全源造血干细胞移植 (HSCT) 后治疗肠道损伤方面表现有前途. 这项研究开发了一种3D有机体模型,以显示MSCs可以再生受损的肠表皮,改善治疗策略.
科学领域:
- 再生医学是一种再生医学.
- 胃肠病学 胃肠病学
- 血液学 血液学 血液学
背景情况:
- 全基性造血干细胞移植 (HSCT) 是白血病的治愈疗法,但受到急性移植对宿主疾病 (aGvHD) 的限制.
- 来自aGvHD的肠道损伤是一种严重的并发症,特别是在耐固醇病例中.
- 全基性介质干细胞/干细胞 (MSC) 输液是一种潜在的治疗类固醇耐药aGvHD,在早期研究中观察到的成功率为40-50%.
研究的目的:
- 开发和使用人类小肠器官和MSCs的新型3D共同培养模型.
- 在生理学上相关的体外环境中研究MSCs对化疗引起的肠上皮损伤的再生作用.
- 阐明MSC介导的肠表皮的修复背后的分子机制.
主要方法:
- 人的小肠器官被建立并用busulfan处理以模仿化疗引起的损伤.
- 被布苏尔损坏的和对照器官被与不同度的MSC共同培养,持续时间不同.
- 分析包括表面积的确定,扩散和亡的评估,RNA测序和蛋白质组学.
主要成果:
- 3D共同培养模型有效地复制了化疗中介肠道损伤.
- 布苏尔方治疗改变了与表皮细胞-介质细胞过渡,增殖和肠道有机体的亡相关的途径.
- 与MSC共同培养逆转了由busulfan引起的转录组和蛋白组变化,恢复了正常的上皮功能.
结论:
- 开发的体外共同培养系统是研究MSC治疗机制的宝贵工具.
- 这种模型有助于研究MSC对受损肠道上皮质的影响的分子基础.
- 这些发现可以帮助优化MSC为基础的疗法,HSCT患者患有肠道损伤.
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