中国组织工程研究 ›› 2014, Vol. 18 ›› Issue (37): 6024-6028.doi: 10.3969/j.issn.2095-4344.2014.37.022

• 干细胞基础实验 basic experiments of stem cells • 上一篇    下一篇

羊膜细胞可保护和修复缺血再灌注损伤小鼠脑组织细胞

郑彦涛1,刘  斌1,Robert Lodato2,李奇林1,蓝迪慧1,洪小英3,鲜  华3   

  1. 1南方医科大学珠江医院急诊科,广东省广州市  510280
    2德克萨斯大学休斯敦医学中心,美国德克萨斯州休斯敦  77030
    3南方医科大学第三附属医院急诊科,广东省广州市  510282
  • 修回日期:2014-08-10 出版日期:2014-09-03 发布日期:2014-09-03
  • 通讯作者: 刘斌,硕士,主任医师,硕士生导师,南方医科大学珠江医院急诊科,广东省广州市 510280
  • 作者简介:郑彦涛,男,1983年生,广东省广州市人,汉族,硕士,医师,主要研究领域为脑缺血后神经再生。
  • 基金资助:

    广东省自然科学基金(S2011010003061)

Amniotic cells protect and repair mouse brain cells following ischemia-reperfusion injury

Zheng Yan-tao1, Liu Bin1, Robert Lodato2, Li Qi-lin1, Lan Di-hui1, Hong Xiao-ying3, Xian Hua3   

  1. 1Emergency Department, Zhujiang Hospital of Southern Medical University, Guangzhou 510282, Guangdong Province, China
    2The University of Texas Health Science Center at Houston, Houston, TX 77030, USA
    3Department of Emergency, the Third Affiliated Hospital of Southern Medical University, Guangzhou 510282, Guangdong Province, China
  • Revised:2014-08-10 Online:2014-09-03 Published:2014-09-03
  • Contact: Liu Bin, Master, Chief physician, Master’s supervisor, Emergency Department, Zhujiang Hospital of Southern Medical University, Guangzhou 510282, Guangdong Province, China
  • About author:Zheng Yan-tao, Master, Physician, Emergency Department, Zhujiang Hospital of Southern Medical University, Guangzhou 510282, Guangdong Province, China
  • Supported by:

    the Natural Science Foundation of Guangdong Province, No. S2011010003061

摘要:

背景:羊膜细胞主要由羊膜上皮细胞和羊膜间充质细胞组成,均具有多分化潜能,可转化为神经元,且还有合成、释放生物活性物质和神经营养因子的功能。作者前期研究证实羊膜细胞移植入脑内后,能明显促进脑内神经元的再生。
目的:探索羊膜细胞对小鼠缺血再灌注损伤脑细胞的作用。
方法:将Balb/C小鼠通过夹闭双侧颈总动脉方法建立脑缺血再灌注损伤模型后,分离小鼠脑细胞。取孕鼠新鲜胎盘,分离羊膜细胞。将与羊膜细胞共培养的小鼠脑细胞作为实验组,以PBS培养的小鼠脑细胞作为对照组。
结果与结论:实验组小鼠脑细胞活性较对照组明显增加(P < 0.05)。培养24,72 h后实验组小鼠脑细胞坏死率较对照组差异无显著性意义(P > 0.05),而培养48 h后实验组小鼠脑细胞坏死率较对照组明显降低(P < 0.05)。实验组小鼠脑细胞中S期细胞数量增加,而对照组小鼠脑细胞中G1期细胞数量增加,S期细胞数量减少,但2组小鼠脑细胞中G2期细胞数量不变。说明羊膜细胞具有保护缺血再灌注损伤Balb/C小鼠脑细胞的作用,且能抑制其坏死和凋亡并促进其再生。


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, 移植, 羊膜细胞, Balb/C小鼠, 脑细胞, 缺血再灌注, 细胞周期, 凋亡, 坏死, 广东省自然科学基金

Abstract:

BACKGROUND: Amniotic cells are mainly composed of amniotic epithelial cells and amniotic mesenchymal cells, which have multi-differentiation potential and can be transformed into neurons as well as synthesize and release biologically active substances and neurotrophic factors. In preliminary studies, amniotic cells that are transplanted into the brain can significantly promote the regeneration of brain neurons.
OBJECTIVE: To explore the role of amniotic cells in mouse brain cells after ischemia-reperfusion injury.
METHODS: The model of cerebral ischemia-reperfusion injury was established in Babl/c mice using occlusion of bilateral common carotid arteries, and then brain cells were separated from mice. Amniotic cells were isolated from mouse placenta. Brain cells from Balb/C mice co-cultured with amniotic cells served as experimental group, and brain cells cultured with PBS as control group.
RESULTS AND CONCLUSION: The viability of brain cells in the experimental group was significantly higher than that in the control group (P < 0.05). There was no difference in necrotic rate of brain cells between the experimental and control groups after 24 and 72 hours co-culture (P > 0.05); after 48 hours co-culture, however, the necrotic rate of brain cells was significantly lower in the experimental group than the control group (P < 0.05). In cell cycle, the experiment group showed increased S phase cells; while, the control group exhibited increased G1 phase cells and decreased S phase cells. G2 phase cells had no changes in number in both two groups. Through the above results, amnion cells can be proved to protect and promote the regeneration of brain cells of Balb/C mice with ischemia-reperfusion injury, and inhibit cell necrosis and apoptosis.


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: amnion, reperfusion injury, cell cycle, flow cytometry

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