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Abstract

Biology

3D生物反应器培养大规模制备滑液间充质干细胞来源外泌体

Published: July 26th, 2022

DOI:

10.3791/62221

1Department of Orthopedics, The First affiliated hospital of Shenzhen University, Shenzhen Second People's Hospital, 2Guangdong Provincial Research Center for Artificial Intelligence and Digital Orthopedic Technology, Shenzhen Second People's Hospital, 3Department of Child and Adolescent Psychiatry, Shenzhen Kangning Hospital, Shenzhen Mental Health Center, Shenzhen Key Laboratory for Psychological Healthcare & Shenzhen Institute of Mental Health

Abstract

间充质干细胞(MSCs)分泌的外泌体已被建议作为软骨损伤和骨关节炎治疗的有希望的候选者。临床应用的外泌体需要大规模生产。为此,在微载体珠上生长人滑液MSC(hSF-MSCs),然后在动态三维(3D)培养系统中培养。通过利用3D动态培养,该方案成功地从SF-MSC培养上清液中获得了大规模的外泌体。通过超速离心收获外泌体,并通过透射电子显微镜、纳米颗粒透射测定和蛋白质印迹法进行验证。此外,还检测了外泌体的微生物安全性。外泌体检测结果表明,该方法可以产生大量良好生产规范(GMP)级外泌体。这些外泌体可用于外泌体生物学研究和临床骨关节炎治疗。

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