中国组织工程研究 ›› 2018, Vol. 22 ›› Issue (1): 101-106.doi: 10.3969/j.issn.2095-4344.0418

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

负压条件下骨髓间充质干细胞向表皮细胞的诱导分化

赵伯文,徐 强,葛权虎,李伯龙,彭心宇,张宏伟,吴向未   

  1. 石河子大学医学院第一附属医院,新疆维吾尔自治区石河子市 832008
  • 修回日期:2017-08-13 出版日期:2018-01-08 发布日期:2018-01-08
  • 通讯作者: 彭心宇,主任医师,博士研究生导师,石河子大学医学院第一附属医院,新疆维吾尔自治区石河子市 832008; 并列通讯作者:张宏伟,主治医师,石河子大学医学院第一附属医院,新疆维吾尔自治区石河子市 832008
  • 作者简介:赵伯文,男,1991年生,新疆维吾尔自治区石河子市人,汉族,2017年石河子大学毕业,硕士,主要从事肝脏外科疾病的基础与临床研究。
  • 基金资助:

    国家自然科学基金项目(31271458);兵团应用基础研究计划(2016AG019)

Negative pressure promotes epidermal differentiation of bone marrow mesenchymal stem cells

Zhao Bo-wen, Xu Qiang, Ge Quan-hu, Li Bo-long, Peng Xin-yu, Zhang Hong-wei, Wu Xiang-wei   

  1. The First Affiliated Hospital, College of Medicine, Shihezi University, Shihezi 832008, Xinjiang Uygur Autonomous Region, China
  • Revised:2017-08-13 Online:2018-01-08 Published:2018-01-08
  • Contact: Peng Xin-yu, Chief physician, Doctoral supervisor, the First Affiliated Hospital, College of Medicine, Shihezi University, Shihezi 832008, Xinjiang Uygur Autonomous Region, China; Zhang Hong-wei, Attending physician, the First Affiliated Hospital, College of Medicine, Shihezi University, Shihezi 832008, Xinjiang Uygur Autonomous Region, China
  • About author:Zhao Bo-wen, Master, the First Affiliated Hospital, College of Medicine, Shihezi University, Shihezi 832008, Xinjiang Uygur Autonomous Region, China
  • Supported by:

    the National Natural Science Foundation of China, No. 31271458; Applied Basic Research Project of Xinjiang Production and Construction Corps, No. 2016AG019

摘要:

文章快速阅读:

文题释义:
负压影响细胞增殖分化:
机械力、细胞骨架和整合素三者相互作用影响细胞的增殖分化,而负压作为一种物理因素可通过机械力作用导致细胞膜及细胞骨架的变形传导至细胞内,并由细胞内信号传导传入细胞核,促使合成细胞所需的因子,影响细胞的增殖分化。
角蛋白(cytokeratin,CK):是一种中间丝蛋白,在细胞内形成广泛的网状结构,是表皮细胞的结构蛋白,目前公认细胞角蛋白相关抗原是表皮细胞的特异性标志,存在于表皮细胞的胞浆内,正常情况下,间充质干细胞不表达这种抗原。处于不同分化阶段的细胞,细胞表达不同的角蛋白,因而也可作为干细胞、定向祖细胞、分化细胞的鉴定手段,定向祖细胞及表皮细胞表达角蛋白5、角蛋白10,故实验检测角蛋白5、角蛋白10的表达评估骨髓间充质干细胞向表皮细胞分化的能力。

 

摘要
背景:
负压作为一种物理因素影响间充质干细胞的分化,其可以促进间充质干细胞向成骨细胞、内皮细胞分化。如果能发现负压对于间充质干细胞向表皮细胞分化的作用,对未来临床上负压联合干细胞修复创伤具有重要意义。
目的:探讨负压作用条件对兔骨髓间充质干细胞向表皮细胞分化的影响。
方法:分离培养新西兰大白兔骨髓间充质干细胞,取第3代骨髓间充质干细胞在负压下(-16.625 kPa,2次/d,4 h/次)进行成表皮诱导分化,设置0 kPa组为对照组,绘制细胞生长曲线,实时荧光定量PCR检测负压条件下诱导2周后CK-5、CK-10 mRNA的表达。
结果与结论:与0 kPa组比较,16.625 kPa组细胞生长受抑制,细胞CK-5、CK-10 mRNA表达水平增高,差异均有显著性意义(P < 0.05)。说明负压能抑制细胞增殖,促进兔骨髓间充质干细胞向表皮细胞分化。

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: 0000-0002-2535-7618(赵伯文)

关键词: 干细胞, 骨髓间充质干细胞, 负压创面技术, 细胞分化, 细胞增殖, 表皮分化, 负压诱导, 国家自然科学基金

Abstract:

BACKGROUND: As a physical factor, negative pressure can promote the osteogenic differentiation and endothelial differentiation of mesenchymal stem cells. If a negative pressure exerts effects on the epidermal differentiation of mesenchymal stem cells, it will be highly important for the combination use of negative pressure and mesenchymal stem cells in wound healing.
OBJECTIVE: To explore the effect of negative pressure on the epidermal differentiation of bone marrow mesenchymal stem cells.
METHODS: Bone marrow mesenchymal stem cells of New Zealand white rabbits were isolated and cultured. Then, the passage 3 cells were induced for epidermal differentiation under negative pressure (-16.625 kPA, twice a day, once for 4 hours) as experimental group. Another cells induced under no negative pressure were used as control group. After induction, cell growth curve was drawn in each group, and the expression of cytokeratin 5 and cytokeratin 10 mRNA was examined by real-time PCR at 2 weeks after induction.
RESULTS AND CONCLUSION: The cell growth of the experimental group was inhibited, and the mRNA expression of cytokeratin 5 and cytokeratin 10 was significantly increased compared with the control group (P < 0.05). These findings indicate that under the condition of negative pressures, the epidermal differentiation ability of bone marrow mesenchymal stem cells is increased, and in contrary, the cell proliferation is inhibited.

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, Pressure, Epidermis, Cell Differentiation, Tissue Engineering

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