肺移植免疫调节与基因工程介质干细胞-治疗窗口的介质素-10的治疗窗口
Antti I Nykänen1,2, Andrea Mariscal1,2,3,4, Allen Duong1,2
1Latner Thoracic Research Laboratories, Toronto General Hospital Research Institute, University Health Network, Toronto, ON M5G 1L7, Canada.
Cells
|May 24, 2024
概括
在体肺 perfusion (EVLP) 期间提供抗炎IL-10的基因工程介质细胞 (MSCs) 显示了肺移植中免疫调节的治疗窗口. 低剂量的MSCs降低了亡和巨细胞激活,而高剂量的MSCs则导致炎症.
科学领域:
- 免疫学 免疫学 免疫学
- 移植科学 移植科学
- 再生医学是一种再生医学.
背景情况:
- 肺移植受到缺血-再输血损伤和免疫排斥的阻碍.
- 活体肺输液 (ex vivo lung perfusion,简称EVLP) 是一个评估捐赠者的肺部和应用治疗方法的平台.
- 为免疫调节而开发的基因工程转基因介质细胞 (MSCs) 产生抗炎性人类介质素-10 (hIL-10).
研究的目的:
- 在临床前的肺移植模型中,研究MSCs的免疫调节效应,这些MSCs在EVLP期间被设计为过度产生hIL-10 (MSCsIL-10).
- 为了确定MSCIL-10治疗对免疫反应和移植后肺功能的剂量依赖性影响.
主要方法:
- 猪肺接受了6小时的EVLP,并随机分配到接受低剂量 (20 × 106) 或高剂量 (40 × 106) 的MSCsIL-10的控制或治疗组.
- 进行了单个肺移植,随后进行了3天的监测.
- 免疫学评估包括hIL-10水平,细胞因子概况,T和髓状细胞的特征以及混合淋巴细胞反应.
主要成果:
- MSCIL-10治疗导致在EVLP和外科手术期间迅速,短暂的hIL-10增加.
- 肺功能没有受到MSC治疗的显著影响.
- 低剂量MSCIL-10可减少亡和巨细胞激活,而高剂量MSCIL-10可诱导炎症和细胞毒性CD8+T细胞激活,表明剂量依赖的免疫调节作用.
结论:
- 在EVLP期间的MSCIL-10治疗提供了hIL-10的快速和短暂的外科手术前增加.
- 对于MSCIL-10免疫调节,存在治疗窗口,低剂量显示有益效果,高剂量可能导致不良免疫反应.
关键词:
细胞治疗疗法细胞治疗疗法活体肺外 perfusion 透 肺外 perfusion 活体肺外 perfusion 透基因治疗的基因疗法介质蛋白-10 介质蛋白-10 的作用.肺部移植 肺部移植更多相关视频
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