中国组织工程研究 ›› 2015, Vol. 19 ›› Issue (29): 4688-4694.doi: 10.3969/j.issn.2095-4344.2015.29.019

• 组织构建细胞学实验 cytology experiments in tissue construction • 上一篇    下一篇

IKK-2受体阻滞剂对角膜基质成纤维细胞的作用及机制

仲  炜,姜  宏,赵  婧   

  1. 吉林大学中日联谊医院眼科,吉林省长春市  130031
  • 出版日期:2015-07-09 发布日期:2015-07-09
  • 通讯作者: 姜宏,博士,副主任医师,吉林大学中日联谊医院眼科,吉林省长春市 130031
  • 作者简介:仲炜,男,1981年生,吉林省柳河县人,汉族,2008年吉林大学毕业,硕士,主治医师,主要从事眼表病和角膜病的研究。
  • 基金资助:

    吉林省科技发展计划资助项目,课题名称:TPCA-1对脂多糖诱导的角膜基质细胞分泌的抑制作用(20090173),细胞信号转导机制在角膜溃疡发生的作用(20090744)

Effect and mechanism of IKK-2 receptor blocker on corneal stromal fibroblasts 

Zhong Wei, Jiang Hong, Zhao Jing   

  1. Department of Ophthalmology, China-Japan Friendship Hospital, Jilin University, Changchun 130031, Jilin Province, China
  • Online:2015-07-09 Published:2015-07-09
  • Contact: Jiang Hong, M.D., Associate chief physician, Department of Ophthalmology, China-Japan Friendship Hospital, Jilin University, Changchun 130031, Jilin Province, China
  • About author:Zhong Wei, Master, Attending physician, Department of Ophthalmology, China-Japan Friendship Hospital, Jilin University, Changchun 130031, Jilin Province, China
  • Supported by:

    the Jilin Province Science and Technology Development Program, No. 20090173, 20090744

摘要:

背景:研究证实角膜基质成纤维细胞在脂多糖刺激时表达白细胞介素8。成纤维细胞对脂蛋白或其他炎性递质的不同反应,可能构成了不同组织在炎症反应中的不同特征。
目的:观察IKK-2受体阻滞剂(TPCA-1)对脂多糖作用下人角膜基质成纤维细胞分泌炎性细胞因子、趋化因子、细胞间黏附分子的抑制作用及其信号转导途径,与地塞米松进行比较,并联合应用探讨其替代或协同作用。
方法:测量培养的人角膜基质成纤维细胞在基础状态下及脂多糖作用下分泌白细胞介素1、肿瘤坏死因子α、白细胞介素6、白细胞介素8水平以及IKK-2受体阻滞剂(TPCA-1)、地塞米松干预后的变化,检测细胞表面细胞间黏附分子1及细胞内白细胞介素6表达水平,从mRNA水平验证细胞间黏附分子1、白细胞介素6、白细胞介素8表达水平的变化。检测上述情况下细胞核因子κB表达。
结果与结论:脂多糖诱导了人角膜基质成纤维细胞白细胞介素6, 白细胞介素8及细胞间黏附分子1的分泌及表达增加,IKK-2受体阻滞剂(TPCA-1)抑制上述作用,TPCA-1的抑制作用是通过阻断了核转录因子κB信号转导途径实现的,地塞米松表现相似的抑制作用,但是通过不同的信号转导途径实现的。结果提示IKK-2受体阻滞剂与地塞米松有协同作用,可能成为治疗感染性角膜疾病中地塞米松的替代药物或补充。

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

关键词: 组织构建, 组织工程, 角膜基质成纤维细胞, IKK-2受体阻滞剂(TPCA-1), 脂多糖, 地塞米松, 信号转导途径

Abstract:

BACKGROUND: Corneal stromal fibroblasts have been shown to express interleukin-8 in the stimulation of lipopolysaccharide. Different reactions of fibroblasts to lipoprotein or other inflammatory mediators may constitute different characteristics of different tissues in the inflammatory response.
OBJECTIVE: To observe the inhibitory effect of IKK-2 receptor blocker TPCA-1 on human corneal stromal fibroblasts to secrete inflammatory cytokines, chemokines and cell adhesion molecules under the stimulation of lipopolysaccharide and its signal transduction pathway, to compare with dexamethasone, and to explore alternative or synergistic effects after their combination.
METHODS: This study measured the secretion of interleukin-1, tumor necrosis factor alpha, interleukin-6, and interleukin-8 from cultured human corneal stromal fibroblasts under the action of basic state and lipopolysaccharide, and their changes after the intervention with IKK-2 receptor blocker TPCA-1 and dexamethasone. We also detected expression level of intercellular adhesion molecule-1 and interleukin-6 in cell surface, and verified the changes in expression levels of intercellular adhesion molecule-1, interleukin-6, and interleukin-8 from mRNA level, as well as examined the expression of nuclear factor kappa B under above conditions. 
RESULTS AND CONCLUSION: Lipopolysaccharide induced the secretion of interleukin-6, interleukin-8 and intercellular adhesion molecule-1 from human corneal stromal fibroblasts, and their expressions were increased. IKK-2 receptor blocker TPCA-1 could inhibit above effects. The inhibitory effect of TPCA-1 was done by blocking nuclear transcription factor kappa B signal transduction, and was identical to the inhibitory effect of dexamethasone, but by different signal transduction pathway. These data indicate that IKK-2 receptor blocker and dexamethasone have synergistic effects. IKK-2 receptor blocker may become an alternative to dexamethasone in treatment of infectious corneal diseases. 

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

Key words: lipopolysaccharide, Fibroblasts, Dexamethasone

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