Role of long non-coding RNA MIAT in proliferation, apoptosis and migration of lens epithelial cells: a clinical and in vitro study

Journal of Cellular and Molecular Medicine
Yi ShenBiao Yan

Abstract

Age-related cataract is among the most common chronic disorders of ageing and is the world's leading blinding disorder. Long non-coding RNAs play important roles in several biological processes and complicated diseases. However, the role of lncRNAs in the setting of cataract is still unknown. Here, we extracted total RNAs from the transparent and age-matched cataractous human lenses, and determined lncRNA expression profiles using microarray analysis. We found that 38 lncRNAs were differentially expressed between transparent and cataractous lenses. 17 of 20 differentially expressed lncRNAs were further verified by quantitative RT-PCRs. One top abundant lncRNA, MIAT, was specifically up-regulated both in the plasma fraction of whole blood and aqueous humor of cataract patients. MIAT knockdown could affect the proliferation, apoptosis and migration of Human lens epithelial cells (HLECs) upon oxidative stress. Posterior capsule opacification (PCO) is a common complication of cataract surgery, which is associated with abnormal production of inflammatory factors. MIAT knockdown could repress tumour necrosis factor-α-induced abnormal proliferation and migration of HLECs, suggesting a potential role of MIAT in PCO-related pathological...Continue Reading

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Methods Mentioned

BETA
transfection

Software Mentioned

SPSS

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