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首页> 外文期刊>Ophthalmic Research: Journal for Research in Experimental and Clinical Ophthalmology >Silencing Matrix Metalloproteinases 9 and 2 Inhibits Human Retinal Microvascular Endothelial Cell Invasion and Migration
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Silencing Matrix Metalloproteinases 9 and 2 Inhibits Human Retinal Microvascular Endothelial Cell Invasion and Migration

机译:沉默基质金属蛋白酶9和2抑制人类视网膜微血管内皮细胞的入侵和迁移。

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Purpose: Proliferative retinal angiogenesis may severely impair the retina. Previous studies have indicated that matrix metalloproteinase (MMP)-2 and MMP-9 play important roles in the process of retinal angiogenesis. In this study, we suppressed MMP-2 and MMP-9 expression with RNA interference (RNAi) and then observed the inhibitory effects on the invasion and migration of human retinal microvascular endothelial cells (HRMECs). Methods: Small interfering RNAs against MMP-2 mRNA and MMP-9 mRNA were synthesized. After transfection, the MMP-2 and MMP-9 expression in HRMECs was examined by real-time polymerase chain reaction and Western blot analysis. Cell migration and invasion were measured with a migration assay and a scratch wound assay, respectively. Results: RNAi against MMP-2 and MMP-9 successfully inhibited the mRNA and protein expression of MMP-2 and MMP-9 in HRMECs. MMP-2 and MMP-9 knockdown could inhibit the invasion and migration of HRMECs. Conclusions: These findings suggest that the RNAi approach towards MMP-2 and MMP-9 may be a potentially effective therapeutic method for the treatment of proliferative retinal angiogenesis. (c) 2015 S. Karger AG, Basel
机译:目的:增殖性视网膜血管生成可能严重损害视网膜。先前的研究表明,基质金属蛋白酶(MMP)-2和MMP-9在视网膜血管生成过程中起重要作用。在这项研究中,我们通过RNA干扰(RNAi)抑制了MMP-2和MMP-9的表达,然后观察了对人视网膜微血管内皮细胞(HRMEC)侵袭和迁移的抑制作用。方法:合成针对MMP-2 mRNA和MMP-9 mRNA的小干扰RNA。转染后,通过实时聚合酶链反应和蛋白质印迹分析检查HRMECs中MMP-2和MMP-9的表达。细胞迁移和侵袭分别用迁移测定法和刮伤测定法测量。结果:针对MMP-2和MMP-9的RNAi成功抑制了HRMECs中MMP-2和MMP-9的mRNA和蛋白表达。 MMP-2和MMP-9敲低可以抑制HRMEC的入侵和迁移。结论:这些发现表明,针对MMP-2和MMP-9的RNAi方法可能是治疗增生性视网膜血管生成的潜在有效治疗方法。 (c)2015 S.Karger AG,巴塞尔

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