中国组织工程研究 ›› 2014, Vol. 18 ›› Issue (37): 5942-5946.doi: 10.3969/j.issn.2095-4344.2014.37.007

• 脐带脐血干细胞 umbilical cord blood stem cells • 上一篇    下一篇

脐带采集液中添加美罗培南对脐带间充质干细胞生物学特性的影响

刘俊江,周建宇,黄文敬,洪敬欣   

  1. 协和干细胞基因工程有限公司,天津市  300384
  • 修回日期:2014-06-26 出版日期:2014-09-03 发布日期:2014-09-03
  • 通讯作者: 洪敬欣,博士后,协和干细胞基因工程有限公司,天津市 300384
  • 作者简介:刘俊江,男,1984年生,天津市人,汉族,助理工程师,主要从事干细胞相关研究。

Meropenem effects on biological characteristics of umbilical cord-derived mesenchymal stem cells during umbilical cord collection

Liu Jun-jiang, Zhou Jian-yu, Huang Wen-jing, Hong Jing-xin   

  1. Union Stem Cell & Gene Engineering Co., Ltd., Tianjin 300384, China
  • Revised:2014-06-26 Online:2014-09-03 Published:2014-09-03
  • Contact: Hong Jing-xin, M.D., Union Stem Cell & Gene Engineering Co., Ltd., Tianjin 300384, China
  • About author:Liu Jun-jiang, Assistant engineer, Union Stem Cell & Gene Engineering Co., Ltd., Tianjin 300384, China

摘要:

背景:为避免脐带采集过程中发生细菌污染,常在脐带采集液中加入抗生素,实验旨在探索可以抑制污染同时又不会对细胞生长增殖造成影响的新型抗生素。
目的:观察美罗培南抗生素对脐带间充质干细胞增殖和分化潜能的影响。
方法:实验分2组,使用传统添加青霉素链霉素(终浓度均为100 U/mL)的脐带采集液采集的标本为对照组,使用添加美罗培南(终质量浓度为1.0 mg/L)的脐带采集液采集的标本为实验组,分别采集脐带标本100份,统计两组标本采集液的阳性率。两组脐带分离培养后取第3代细胞绘制生长曲线,流式细胞术分析其表型以及检测成骨、成脂分化能力。
结果与结论:经统计,实验组的采集液污染率为3%(3/100),对照组的采集液污染率为20%(20/100),可见含有美罗培南的采集液标本污染率明显降低。使用含有美罗培南的采集液采集脐带,经培养后获得的第3代脐带间充质干细胞形态、分化能力以及细胞表型均正常,且细胞增殖能力与对照组相比无差异,因此该抗生素可用于脐带采集液。


中国组织工程研究杂志出版内容重点:干细胞;骨髓干细胞;造血干细胞;脂肪干细胞;肿瘤干细胞;胚胎干细胞;脐带脐血干细胞;干细胞诱导;干细胞分化;组织工程


全文链接:

关键词: 干细胞, 脐带脐血干细胞, 美罗培南, 脐带间充质干细胞, 大肠埃希菌, 脐带采集液

Abstract:

BACKGROUND: Due to the difficulty in the control of delivery and collection process, antibiotics are often added into the preservation fluid in order to avoid bacterial contamination but not affect cell growth and proliferation.
OBJECTIVE: To observe the effects of meropenem on the proliferation and differentiation potential of umbilical cord-derived mesenchymal stem cells.
METHODS: There were two groups in this experiment: control group, preservation fluid with penicillin- streptomycin (final concentration of 100 U/mL); experimental group, preservation fluid with meropenem (final mass concentration of 1.0 mg/L). 100 umbilical cord samples were collected in each group, and the positive rate was calculated. After isolation and culture, the passage 3 cells were used to draw a growth curve, flow cytometry analysis was used for phenotype determination, and osteogenic and adipogenic differentiation of cells were detected.
RESULTS AND CONCLUSION: The contamination rates were 3% (3/100) in the experimental group and 20% (20/100) in the control group, indicating that meropenem can obviously reduce the contamination rate. In the experimental group, the morphology, differentiation potential and cell phenotype of the passage 3 cells were all normal. The proliferation ability of cells showed no difference between the two groups. Therefore, meropenem can be added to the preservation fluid.


中国组织工程研究杂志出版内容重点:干细胞;骨髓干细胞;造血干细胞;脂肪干细胞;肿瘤干细胞;胚胎干细胞;脐带脐血干细胞;干细胞诱导;干细胞分化;组织工程


全文链接:

Key words: umbilical cord, mesenchymal stem cells, beta-lactams, anti-bacterial agents

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