中国组织工程研究 ›› 2018, Vol. 22 ›› Issue (33): 5259-5267.doi: 10.3969/j.issn.2095-4344.0659

• 骨髓干细胞 bone marrow stem cells • 上一篇    下一篇

炎症诱导缺血缺氧环境下骨髓间充质干细胞的活性

张 妮1,陈兰英1,李雪亮1,官紫祎1,方 聪1,周朦静1,罗颖颖1,刘荣华2   

  1. 1江西中医药大学国家工程研究中心,江西省南昌市 330006;2江西中医药大学药学院,江西省南昌市 330004
  • 修回日期:2018-06-29 出版日期:2018-11-28 发布日期:2018-11-28
  • 通讯作者: 陈兰英,博士,博士生导师,教授,江西中医药大学国家工程研究中心,江西省南昌市 330006
  • 作者简介:张妮,女,1986年生,江西省武宁县人,汉族,2013年江西中医药大学毕业,在读博士,讲师,主要从事干细胞与心血管疾病方面的研究。
  • 基金资助:

    国家自然科学基金(81660676,81360629);江西省自然科学基金(20171BAB205096)

Viability of bone marrow mesenchymal stem cells in inflammation-induced ischemia-reperfusion environment

Zhang Ni1, Chen Lan-ying1, Li Xue-liang1, Guan Zi-yi1, Fang Cong1, Zhou Meng-jing1, Luo Ying-ying1, Liu Rong-hua2   

  1. 1National Pharmaceutical Engineering Center for Solid Preparation of Chinese Herbal Medicine, Jiangxi University of Traditional Chinese Medicine, Nanchang 330006, Jiangxi Province, China; 2School of Pharmacy, Jiangxi University of Traditional Chinese Medicine, Nanchang 330004, Jiangxi Province, China
  • Revised:2018-06-29 Online:2018-11-28 Published:2018-11-28
  • Contact: Chen Lan-ying, MD, Doctoral supervisor, Professor, National Pharmaceutical Engineering Center for Solid Preparation of Chinese Herbal Medicine, Jiangxi University of Traditional Chinese Medicine, Nanchang 330006, Jiangxi Province, China
  • About author:Zhang Ni, Doctorate candidate, Lecturer, National Pharmaceutical Engineering Center for Solid Preparation of Chinese Herbal Medicine, Jiangxi University of Traditional Chinese Medicine, Nanchang 330006, Jiangxi Province, China
  • Supported by:

    the National Natural Science Foundation of China, No. 81660676; 81360629; the Natural Science Foundation of Jiangxi Province, No. 20171BAB205096

摘要:

文章快速阅读:

文题释义:
氧糖剥夺:
是指在细胞水平上体外模拟缺血缺氧对细胞造成的刺激模型,通过对细胞正常培养条件的改变,包括将细胞放入无氧或低氧装置中,并更换无糖无血清培养基,经过一定时间的氧糖剥夺处理模拟细胞在缺血缺氧情况下造成的损伤。
骨髓间充质干细胞活性:在骨髓间充质干细胞群体中总有一些因各种原因而死亡的细胞,这些死细胞占总细胞的比例可以用来评价骨髓间充质干细胞活性,通常用总细胞中活细胞所占的百分比来表示,骨髓间充质干细胞中活细胞所占的百分比越高,表示细胞活性越强。

 

摘要
背景:
局部组织缺血缺氧和炎症微环境因素是造成骨髓间充质干细胞生存率低的主要原因。
目的:探讨炎症环境下缺血缺氧对骨髓间充质干细胞活性的影响以及细胞活性与炎症因子之间的关系。
方法:采用全骨髓培养法提取培养骨髓间充质干细胞,流式细胞仪对细胞进行鉴定,将第3代细胞进行不同时间氧糖剥夺(6,12,24 h)和炎症诱导(氧糖剥夺、氧糖剥夺+20 μg/L肿瘤坏死因子α、氧糖剥夺+100 μg/L脂多糖),倒置显微镜观察细胞生长状况,MTT法和流式细胞仪测定细胞活力,ELISA检测上清液中白细胞介素6、白细胞介素10、肿瘤坏死因子α水平,RT-PCR检测细胞中白细胞介素6、白细胞介素10、肿瘤坏死因子α、NF-κB基因表达水平。
结果与结论:①成功分离培养大鼠骨髓间充质干细胞且纯度为95%以上;②氧糖剥夺6 h和12 h细胞活力明显增强,氧糖剥夺24 h细胞活力明显下降;在肿瘤坏死因子α和脂多糖诱导下氧糖剥夺6,12,24 h后细胞活力下降;③与正常条件比较,氧糖剥夺6,12 h后白细胞介素6、白细胞介素10水平和白细胞介素6、白细胞介素10、肿瘤坏死因子α、NF-κB基因表达下降;④与氧糖剥夺条件比较,在肿瘤坏死因子α和脂多糖诱导下氧糖剥夺6,12 h后白细胞介素6、肿瘤坏死因子α水平和白细胞介素6、白细胞介素10、肿瘤坏死因子α、NF-κB基因表达显著升高;⑤由此可见,在肿瘤坏死因子α和脂多糖诱导下,骨髓间充质干细胞活力受炎症因子表达和分泌影响,随着炎症因子表达和分泌增加,骨髓间充质干细胞的活力降低。

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
ORCID: 0000-0001-5860-6492(张妮)

关键词: 骨髓间充质干细胞, 缺血缺氧, 炎症环境, 肿瘤坏死因子α, 脂多糖, 细胞活性, 干细胞, 国家自然科学基金

Abstract:

BACKGROUND: Local tissue ischemia-hypoxia and inflammatory microenvironment mainly contribute to the low survival rate of bone marrow mesenchymal stem cells.
OBJECTIVE: To study the effect of ischemia-hypoxia on viability of bone marrow mesenchymal stem cells in inflammatory environment and to explore the relationship between cell viability and inflammatory factors.
METHODS: The whole bone marrow culture method was used to separate and culture bone marrow mesenchymal stem cells and flow cytometry was used for cell identification. The third passage cells were treated by oxygen-glucose deprivation (OGD) preconditioning for different periods (6, 12 and 24 hours) as well as inflammatory induction (OGD, OGD+20 μg/L tumor necrosis factor alpha (TNF-α), OGD+100 μg/L lipopolysaccharide (LPS)). The treated cells were observed under inverted microscope. Cell viability was tested by MTT assay and flow cytometry. The levels of interleukin-6, interleukin-10, and TNF-α in the cell supernatant were measured by ELISA and the mRNA expression levels of interleukin-6, interleukin-10, TNF-α and nuclear factor-κB in the cells were detected by RT-PCR.
RESULTS AND CONCLUSION: Bone marrow mesenchymal stem cells with a purity of 95% or more were successfully isolated and cultured. MTT and flow cytometry results showed that the cell viability was significantly increased after 6 and 12 hours of OGD, but was significantly decreased after 24 hours of OGD. The viability of bone marrow mesenchymal stem cells decreased after 6, 12, and 24 hours of OGD under the induction of TNF-α and lipopolysaccharide. The results of ELISA and RT-PCR showed that the levels of interleukin-6 and interleukin-10 in the cell supernatant were lowered after 6 and 12 hours of OGD and the gene expression of interleukin-6, interleukin-10, TNF-α, and nuclear factor-κB was lower compared with normal conditions. The levels of interleukin-6 and TNF-α in the cell supernatant increased significantly and the expression of interleukin-6, interleukin-10, TNF-α and nuclear factor-κB genes increased significantly after 6, 12 hours of OGD under TNF-α and LPS induction compared with simple OGD. Therefore, under the induction of TNF-α and lipopolysaccharide, the viability of bone marrow mesenchymal stem cells is affected by the expression and secretion of inflammatory factors. With the increase of the expression and secretion of inflammatory factors, the viability of bone marrow mesenchymal stem cells shows a decreasing trend. 

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

Key words: Bone Marrow, Mesenchymal Stem Cells, Ischemia, Anoxia, Tumor Necrosis Factor-alpha, Lipopolysaccharides, Tissue Engineering

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