这是一种强大且标准化的方法,可以从人类带中分离和扩展中细胞
Pia Todtenhaupt1, Laura A Franken2, Sophie G Groene1
1Molecular Epidemiology, Department of Biomedical Data Sciences, Leiden University Medical Center, Leiden, The Netherlands; Neonatology, Willem-Alexander Children's Hospital, Department of Pediatrics, Leiden University Medical Center, Leiden, The Netherlands.
Cytotherapy
|July 30, 2023
概括
这项研究提出了一种标准化的方法,用于隔离和扩大人类带衍生中细胞 (hUC-MSCs),确保在众多捐赠者中得到一致的结果,用于研究和治疗.
科学领域:
- 干细胞生物学 干细胞生物学
- 再生医学是一种再生医学.
- 细胞疗法细胞疗法
背景情况:
- 人类带衍生中细胞 (hUC-MSCs) 对于研究和治疗应用至关重要.
- 目前对hUC-MSCs的隔离和扩展方法缺乏标准化,导致变异性.
- 需要一种强大且可重复的方法来推进hUC-MSC研究和临床使用.
研究的目的:
- 开发和验证用于隔离和扩展hUC-MSCs的标准化协议.
- 在多步 hUC-MSC 隔离和扩展过程中优化关键变量.
- 评估供体变异性对hUC-MSC特征的影响.
主要方法:
- 在90名人类带 (UC) 捐赠者中比较和优化了关键变量.
- 研究了UC收集,处理,MSC隔离,扩张和表征阶段.
- 评估了供体属性和UC形态学对hUC-MSC特征的影响.
主要成果:
- 建立了一个强大的方法,在90个UC捐赠者中有效.
- 在分娩后6小时内收集并在48小时后处理的UCs对hUC-MSC特征没有影响.
- 使用最小必需介质α与人类血小板溶解酸的优化扩张提高了可再生性和MSC特征.
- 单独的hUC-MSC显示出高纯度 (~98.9%),活力 (>97%) 和繁殖能力.
- 通过抑制T细胞增殖,hUC-MSCs表现出免疫调节能力.
结论:
- 开发了一种标准化和强大的hUC-MSC分离和扩展方法.
- 这种方法最大限度地减少了技术变化,提高了研究结果的可靠性和可比性.
- 标准化协议为推进hUC-MSC研究和治疗应用提供了基础.
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