基础医学与临床 ›› 2013, Vol. 33 ›› Issue (5): 588-592.

• 研究论文 • 上一篇    下一篇

miR-184在碱烧伤大鼠角膜新生血管中的表达及靶基因预测分析?

刘成刚,周善璧   

  1. 重庆医科大学附属第一医院
  • 收稿日期:2012-03-31 修回日期:2012-10-26 出版日期:2013-05-05 发布日期:2013-05-29
  • 通讯作者: 周善璧 E-mail:zhoushanbi@yahoo.com.cn

The expression of miR-184 on the alkali burning induced rat cornea neovascularization and the target genes analysis

Cheng-Gang LIU1,   

  • Received:2012-03-31 Revised:2012-10-26 Online:2013-05-05 Published:2013-05-29

摘要: 目的 初步探索miR-184在碱烧伤诱导大鼠角膜新生血管形成过程中的作用和基因调控机制。方法 碱烧伤诱导大鼠角膜新生血管形成。基质胶上建立人脐静脉血管内皮细胞体外三维培养体系。应用qRT-PCR检测miR-184的体内外表达。生物信息学方法预测并分析miR-184靶基因。结果 初步建立起血管新生的体内外研究模型,miR-184在碱烧伤大鼠角膜新生血管角膜中的表达(0.145±0.013)较正常角膜(1.015±0.189)显著下降(P <0.01),而在人脐静脉血管内皮细胞中相对表达量极少(0.007±0.004)(P <0.05)。预测的的靶基因与VEGF血管生成信号通路有关。结论 新生血管进程中伴随着miR-184表达量降低,提示其与血管新生密切相关,可能通过VEGF信号通路参与碱烧伤角膜新生血管形成。

关键词: 角膜新生血管, 三维培养, microRNA, 靶基因预测

Abstract: Objective To investigate the function and mechanism of miR-184 on cornea neovascularization induced by alkali burning. Methods cornea neovascularization(CRNV) was induced by alkali burning. HUVEC was cultured on Three-dimensional Matrigel. qRT-PCR was performed to analyze microRNA-184 expression in vivo and in vitro. Predicted and analyzed the target genes of microRNA-184 by bioinformatics method. Results Delvelop a model for angiogenesis both in vivo and in vitro. The expression of miR-184 on CRNV (0.145±0.013) was sigificantly less than transparent cornea (1.015±0.189) (P <0.01), and was just absolutely miniscule on HUVEC(0.007±0.004 ) (P <0.05). The targets of miR-184 predicted was associated with VEGF singaling pathways. Conclusion The marked decrease of miR-184 expression during angiogenesis and target prediction suggest a potential role and mechanism of miR-184 played by VEGF singaling pathways on CRNV.

Key words: cornea neovascularization, three-dimensional culture, microRNA, target gene prediction

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