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骨髓衍生中细胞的捐赠者间和捐赠者内部变异性:对临床应用的含义

Alpa Trivedi¹, Maximillian Lin¹, Byron Miyazawa¹

¹Department of Laboratory Medicine, University of California, San Francisco, San Francisco, California, USA.

|June 9, 2024

概括

介酶体 stromal 细胞 (MSCs) 显示出影响患者生物标志物的供体依赖性变异性. 这影响了急性呼吸困扰综合征 (ARDS) 治疗的治疗潜力.

科学领域:

细胞生物学细胞生物学
再生医学是一种再生医学.
免疫学免疫学免疫学

背景情况:

介质细胞 stromal 细胞 (MSCs) 是有希望的治疗炎症和血管疾病.
骨髓衍生MSCs (BM-MSCs) 在2a期试验中被发现对中度至严重的急性呼吸困扰综合征 (ARDS) 安全.
这项研究分析了START试验中的MSC剂量,考虑了捐赠者和采集时间之间的差异.

研究的目的:

为了将MSC特性与与ARDS结果相关的患者血生物标志物相关联.
调查MSC特征的捐赠者间和捐赠者内部变异性.
评估MSCs对内皮屏障透性的功能影响.

主要方法:

对生命力,生长,新陈代谢和表面/蛋白质标记物进行评估的MSC供体批量.
评估免疫调节能力和内皮细胞透性调节.
与患者血生物标志物 (ANG-2,蛋白C) 输血后的相关的MSC特性.

主要成果:

MSC标记体表达和内皮屏障保护在所有供体批量中都是一致的.
在其他体外试验中发现了显著的捐赠者间和捐赠者内部变异性.
患者的血ANG-2和蛋白C水平与MSC活力相关,以依赖于捐赠者的方式.

结论:

捐赠者依赖的 (相互) 和采集依赖的 (内部) 影响影响患者生物标志物的表达.
强调在治疗应用中考虑MSC供体变异性的重要性.
表明需要对ARDS治疗进行标准化MSC表征.

关键词:

在 ARDS 中,ARDS 是指 ARDS 的类型.骨髓骨髓骨髓骨髓骨髓临床试验是指临床试验中的临床试验.提供者的变异性.介质细胞层层细胞.

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