国际眼科纵览

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基质金属蛋白酶表达调控与糖尿病视网膜病变的关系

李玉 薛黎萍   

  1. 昆明医科大学第四附属医院眼科 650000
  • 收稿日期:2018-09-18 出版日期:2019-02-22 发布日期:2019-03-05
  • 通讯作者: 薛黎萍, Email:xueliping001@163.com E-mail:xueliping001@163.com
  • 基金资助:

    云南省教育厅重点项目(2015Z076);云南省医疗卫生内设项目(2016NS184)

Relationship between expression regulation of matrix metalloproteinases and diabetic retinopathy

Li Yu, Xue Liping   

  1. Department of Ophthalmology, The Fourth Affiliated Hospital of Kunming Medical University, Kunming 650000, China
  • Received:2018-09-18 Online:2019-02-22 Published:2019-03-05
  • Contact: Xue Liping, Email: xueliping001@163.com E-mail:xueliping001@163.com
  • Supported by:

    Key Projects of Yunnan Education Department(2015Z076); Yunnan Province Medical and Health Internal Project(2016NS184)

摘要:

糖尿病视网膜病变(diabetic retinopathy,DR)确切的分子机制尚不清楚,高糖环境可致基质金属蛋白酶(matrix metalloproteinases,MMP)表达增加,MMP是一组锌离子依赖的蛋白水解酶,可以降解几乎所有的细胞外基质成分,在DR中参与了细胞凋亡和新生血管生成过程。在正常生理条件下,MMP活性的调节发生在多水平,包括基因转录调控水平、酶原激活、基质金属蛋白酶组织抑制剂调控水平等。其中基因转录水平的调控是最主要的调控机制。

Abstract:

The exact molecular mechanism of diabetic retinopathy (DR) remains unclear. Hyperglycemia in DR can increase the expression of matrix metalloproteinases (MMPs). MMPs are a family of zinc\|dependent endopeptidases that can collectively degrade almost all components of the extracellular matrix. They are involved in the process of apoptosis and angiogenesis in DR. Their enzymatic activity is tightly regulated under physiological conditions. Primary modes of enzyme regulation include transcriptional control, zymogen activation and tissue inhibitors of MMPs. Among which transcriptional control is the most important regulatory mechanism.