中国组织工程研究 ›› 2014, Vol. 18 ›› Issue (1): 14-20.doi: 10.3969/j.issn.2095-4344.2014.01.003

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

缺氧和无血清培养对骨髓间充质干细胞内源性硫化氢生成的影响

郭  增1,李从圣1,2,解杨婧1,王春苗1,程景林3,王爱玲1   

  1. 1安徽医科大学第一附属医院心内科,安徽省合肥市  230022
    2合肥市第一人民医院急诊内科,安徽省合肥市  230061
    3安徽医科大学第二附属医院急诊内科,安徽省合肥市  230601
  • 修回日期:2013-11-04 出版日期:2014-01-01 发布日期:2014-01-01
  • 通讯作者: 王爱玲,硕士,主任医师,教授,博士研究生导师,安徽医科大学第一附属医院心内科,安徽省合肥市 230022
  • 作者简介:郭增,男,1987年生,安徽省肥东县人,汉族,安徽医科大学第一附属医院心内科在读硕士,主要从事冠心病基础与临床研究。
  • 基金资助:

    安徽省省级教学研究委托重大项目(2012jyzd09w)

Effect of hypoxia and serum deprivation on endogenous hydrogen sulfide production in rat bone marrow mesenchymal stem cells  

Guo Zeng1, Li Cong-sheng1, 2, Xie Yang-jing1, Wang Chun-miao1, Cheng Jing-lin3, Wang Ai-ling1   

  1. 1Department of Cardiology, the First Affiliated Hospital of Anhui Medical University, Hefei 230022, Anhui Province, China
    2Department of Emergency, the Third Affiliated Hospital of Anhui Medical University and the First People’s Hospital of Hefei, Hefei 230061, Anhui Province, China
    3Department of Emergency, the Second Affiliated Hospital of Anhui Medical University, Hefei 230601, Anhui Province, China
  • Revised:2013-11-04 Online:2014-01-01 Published:2014-01-01
  • Contact: Wang Ai-ling, Master, Professor, Chief physician, Doctoral supervisor, Department of Cardiology, the First Affiliated Hospital of Anhui Medical University, Hefei 230022, Anhui Province, China
  • About author:Guo Zeng, Studying for master’s degree, Department of Cardiology, the First Affiliated Hospital of Anhui Medical University, Hefei 230022, Anhui Province, China
  • Supported by:

    Major Provincial Teaching Research Commissioned Projects of Anhui Province, No. 2012jyzd09w

摘要:

背景:大鼠骨髓间充干细胞移植后的低存活率多与缺血微环境相关,而硫化氢可以对抗多种细胞与组织的凋亡和损伤模型。
目的:检测大鼠骨髓间充质干细胞在不同缺氧和无血清培养时间后的细胞凋亡、细胞活力、硫化氢含量及其合成酶体系的变化情况。
方法:取第3代大鼠骨髓间充质干细胞,设立5个(0,3,6,12和24 h)不同的缺氧和无血清培养时间点。用SubG1法检测细胞的凋亡率,用CCK-8法检测细胞的活力,并检测细胞培养基中硫化氢的含量以及细胞中硫化氢合成酶体系的表达变化情况。
结果与结论:与正常培养组相比,缺氧和无血清培养不同时间后,细胞的凋亡率显著增高,细胞活力明显下降。缺氧和无血清时间越长,细胞凋亡越多,活力越低,并且细胞培养基中硫化氢含量和细胞中硫化氢合成酶体系的表达也越低,差异有显著性意义。表明缺氧和无血清培养可以抑制大鼠骨髓间充质干细胞中硫化氢及其合成酶体系的生成和表达。


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, 骨髓干细胞, 骨髓间充质干细胞, 缺氧/无血清, 细胞凋亡, 硫化氢, 内源性硫化氢, 胱硫醚-γ-裂解酶, 3-巯基丙酮酸硫基转移酶

Abstract:

BACKGROUND: Ischemia microenvironment contributes mostly to the low survival rate of rat bone marrow mesenchymal stem cells after transplantation. Hydrogen sulfide (H2S) can protect various cells and tissue models against apoptosis and injury.
OBJECTIVE: To detect the cell apoptosis and viability, content of H2S in supernatant, and the expression of H2S synthetase after different time of hypoxia and serum deprivation cultivation of rat bone marrow mesenchymal stem cells.
METHODS: The passage 3 rat bone marrow mesenchymal stem cells were divided into five different cultivation time groups: 0-, 3-, 6-, 12- and 24-hour groups. After enough hypoxia and serum deprivation cultivated time, the cell apoptosis was detected by SubG1, the cell viability was determined by cell counting kit-8, the content of H2S in supernatant was measured by N,N-dimethyl-p-phenylenediamin and the expression of H2S synthetase by RT-PCR and western blot.
RESULTS AND CONCLUSION: Compared to the normal cultivation group, after different hypoxia and serum 
deprivation cultivated time, the cell apoptosis increased and cell viability decreased significantly. The longer hypoxia and serum deprivation cultivated time caused the more cell apoptosis and the lower cell viability. The contents of H2S and its synthetase were also suppressed by hypoxia and serum deprivation cultivation. The difference was statistically significant. These findings suggest that hypoxia and serum deprivation cultivation can inhibit the generation of H2S and expression of its synthetase.


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: stem cells, bone marrow, mesenchymal stem cells, anoxia, culture media, serum-free, hydrogen sulfide, apoptosis

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