慢性高眼压下兔视网膜组织蛋白质组变化的初步研究

应用蛋白质组学技术对兔青光眼慢性高眼压视网膜组织的蛋白进行初步分析。左眼前房注入0.2mL复方卡波姆溶液制作成慢性高眼压模型,右眼为对照眼。28d后分离各组视网膜组织,用双向电泳分离试验组和对照组的蛋白,然后分析电泳图谱,对比、分析其表达蛋白质点的差异,寻找兔视网膜中与慢性高眼压相关的蛋白质。结果表明,慢性高眼压诱导视网膜组织3种蛋白质出现明显差异表达。质谱鉴定出3个蛋白质,分别为热休克蛋白70(heat shock 70 kD protein,HSP70),丙酮酸激酶(Pyruvate kinase)和烯醇酶(enolase)。通过双向电泳,发现兔视网膜蛋白质表达与对照眼相比有质和量的变化,这些变化涉及与神经节细胞(retinal ganglion cells,RGCs)糖酵解及应激反应有关的几组蛋白质,提示上述蛋白质组改变可能参与了慢性青光眼神经节细胞凋亡的过程。

Preliminary Study on Retinal Proteome of Chronic High Intraocular Pressure of Rabbits

The study was designed to apply technology of Proteomics to resolve specifically expressed proteins related to chronic high intraocular pressure in the retina of rabbits.The model was induced by an injection of 0.2 mL compound carbomer solution into anterior chamber of left eye,the right eye served as the contro1.After 28 days,retinas were isolated from glaucomatous and control eyes.Proteins,prepared from the retinas of glaucomatous and control eyes,were separated by using two-dimensional electrophoresis an...