郑琛;孙海英;齐念民;

• 1:上海交通大学药学院

摘要(Abstract)：

目的探讨大鼠骨髓间充质干细胞(Mesenchymal stem cells,MSCs)培养过程中即时监测细胞浓度的可行性。方法将6～8周龄的SD大鼠处死,分离MSCs,在24孔板上半连续灌注培养和自制的生物反应器上连续灌注培养,通过实时检测培养过程中的葡萄糖消耗率(Glucose consumption rate,GCR)、乳酸累积率(Lactic acid production rate,LPR)及相应的干细胞浓度,并计算葡萄糖的比细胞得率(qGlu)及乳酸累积比细胞得率(qLac),分析其稳定性及细胞浓度与GCR和LPR之间的关系。结果所分离培养的MSCs形态均一,轮廓鲜明,呈典型的短小梭形。在24孔板上半连续灌注培养的qGlu和qLac分别为1.84和1.74 mg/(106个.d);生物反应器连续灌注培养的qGlu和qLac分别为1.66和1.61 mg/(106个.d),二者比细胞得率均为恒值。结论 MSCs培养过程中,GCR、LPR与细胞浓度具有良好的线性关系,通过对葡萄糖浓度和乳酸浓度的测定,可以实时监测MSCs的浓度。

关键词(KeyWords)： 间质干细胞;细胞浓度;葡萄糖消耗率;乳酸累积率;生物反应器;比细胞得率

Abstract:

Keywords:

基金项目(Foundation):

作者(Author): 郑琛;孙海英;齐念民;

Email:

DOI: 10.13200/j.cjb.2012.01.116.zhengch.005

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