中国组织工程研究 ›› 2014, Vol. 18 ›› Issue (29): 4625-4629.doi: 10.3969/j.issn.2095-4344.2014.29.006

• 皮肤粘膜组织构建 skin and mucosal tissue construction • 上一篇    下一篇

慢病毒高效感染皮肤人永生化表皮细胞株HaCaT细胞的分化状态

侯 娜1,侯彬彬2,王秀丽3,刘玉芳1,郭 昕4,林 茂2,许雪珠2   

  1. 1大连大学附属中山医院皮肤科,辽宁省大连市 116001;2大连医科大学附属第二医院皮肤科,辽宁省大连市 116027;3大连医科大学基础医学院,辽宁省大连市 116044;4中科院大连化学物理研究所生物技术部1802组,辽宁省大连市 116021
  • 修回日期:2014-04-11 出版日期:2014-07-09 发布日期:2014-07-09
  • 通讯作者: 许雪珠,博士,教授,主任医师,硕士生导师,大连医科大学附属第二医院皮肤科,辽宁省大连市 116027
  • 作者简介:侯娜,女,1982年生,河北省永年县人,汉族,2014年大连大学毕业,硕士,医师,主要从事皮肤肿瘤外科方面的研究。
  • 基金资助:

    国家自然科学基金资助项目(81171489)

Differentiation of HaCaT cells infected with lentivirus

Hou Na1, Hou Bin-bin2, Wang Xiu-li3, Liu Yu-fang1, Guo Xin4, Lin Mao2, Xu Xue-zhu2   

  1. 1Department of Dermatology, Zhongshan Hospital Affiliated to Dalian University, Dalian 116001, Liaoning Province, China; 2Department of Dermatology, Second Affiliated Hospital of Dalian Medical University, Dalian 116027, Liaoning Province, China; 3College of Basic Medical Science, Dalian Medical University, Dalian 116044, Liaoning Province, China; 4Group 1802, Department of Biotechnology, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116021, Liaoning Province, China
  • Revised:2014-04-11 Online:2014-07-09 Published:2014-07-09
  • Contact: Xu Xue-zhu, M.D., Professor, Chief physician, Master’s supervisor, Department of Dermatology, Second Affiliated Hospital of Dalian Medical University, Dalian 116027, Liaoning Province, China
  • About author:Hou Na, Master, Physician, Department of Dermatology, Zhongshan Hospital Affiliated to Dalian University, Dalian 116001, Liaoning Province, China
  • Supported by:

    the National Natural Science Foundation of China, No. 81171489

摘要:

背景:研究证实YY1主要在小鼠基底层未分化表皮细胞中表达,且随着表皮细胞向基底上层分化其表达逐渐下降,这种差异性表达方式说明YY1可能是表皮细胞分化过程中重要的调节因子之一。

目的:采用慢病毒-YY1感染HaCaT细胞观察YY1过表达对细胞分化的影响。
方法:将慢病毒-YY1感染至HaCaT细胞,经puromycin筛选,建立单克隆稳定细胞株,设对照组为慢病毒感染的HaCaT细胞和未感染的HaCaT细胞,Western blot检测分析YY1蛋白的表达水平;将慢病毒-YY1-HaCaT组和HaCaT-YY1组细胞各分成2组,一组在低钙(0.12 mmol/L)培养基条件下培养48 h,另一组在低钙   (0.12 mmol/L)培养基条件下培养24 h后在高钙(0.35 mmol/L)培养基条件下再培养24 h,用Western blot法检测YY1过表达对HaCaT细胞分化中的表皮细胞特异性分化角蛋白K1、K10、K14和晚期分化产物外皮蛋白、中间丝相关蛋白、兜甲蛋白的影响。

结果与结论:慢病毒-YY1成功感染HaCaT细胞,高钙条件下获得的单克隆细胞株过表达YY1蛋白,可抑制K1、外皮蛋白和兜甲蛋白的合成,从而阻止表皮细胞角质化进程并使细胞处于未分化状态。结果说明慢病毒可高效感染皮肤人永生化表皮细胞株HaCaT细胞,YY1可能是抑制基底表皮细胞分化并维持其未分化增殖状态的重要因子之一。



中国组织工程研究
杂志出版内容重点:组织构建;骨细胞;软骨细胞;细胞培养;成纤维细胞;血管内皮细胞;骨质疏松组织工程


全文链接:

关键词: 组织构建, 组织工程, HaCaT细胞, YY1, 慢病毒, 角蛋白, 感染, 国家自然科学基金

Abstract:

BACKGROUND: YY1 is mainly expressed in the undifferentiated epidermic cells in mouse basal lamina, and the expression level is gradually down-regulated as the differentiation towards suprabasal lamina. The differential expression indicates that, YY1 is one of the regulators in the process of epidermic cells differentiation.

OBJECTIVE: To observe the effects of YY1 over-expression on the differentiation of HaCaT cells infected with lentivirus.
METHODS: Lentivirus-YY1 was transferred into the HaCaT cells by using Lipofectamine 2000. After selection of the puromycin, monoclonal cell lines were established, and the control group were lentivirus-infected HaCaT cells and uninfected HaCaT cells. The expression of YY1 was detected by using western blot analysis. Cells in Lentivirus-YY1-HaCaT group and HaCaT-YY1 group were further divided into two subgroups according to the calcium concentration in culture medium, cells were either cultured in low-calcium medium (0.12 mmol/L) for
48 hours, or cultured in low-calcium medium (0.12 mmol/L) for 24 hours and in high-calcium medium (0.35 mmol/L) for additional 24 hours. Keratin K1, K10, K14, and involucrin, filaggrin and loricrin after over-expression of YY1 were detected with western blot analysis.
RESULTS AND CONCLUSION: The HaCaT cells were successfully infected with lentivirus-YY1, and we obtained over-expression of YY1 protein in monoclonal cell lines under high-calcium concentrations, the over-expressed YY1 could decrease the expression of K1, involucrin and loricrin, thereby preventing the process of epidermal keratinocytes and maintaining the cells in an undifferentiated state. Lentivirus can efficiently infect human immortalized epidermal cell HaCaT, and YY1 may the important factor of inhibiting the differentiation of basal epidermal cells and maintaining the undifferentiated proliferation status.


中国组织工程研究
杂志出版内容重点:组织构建;骨细胞;软骨细胞;细胞培养;成纤维细胞;血管内皮细胞;骨质疏松组织工程


全文链接:

Key words: lentivirus infections, YY1 transcription factor, keratin

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