MiR-30a Inhibits BECN1-mediated Autophagy in Diabetic Cataract

Overview

Journal Oncotarget

Specialty Oncology

Date 2017 Nov 5

PMID 29100392

Citations 14

Authors

Lu Zhang

Rong Cheng

Yusen Huang

Affiliations

Soon will be listed here.

Abstract

Purpose: To investigate the role of microRNAs in the regulation of autophagy and apoptosis in lens epithelial cells (LECs) during diabetic cataract formation.

Methods: A miRNA microarray study and quantitative real-time PCR were performed to identify the expression of miRNAs in LECs of diabetic cataract. Human LECs were cultured in high glucose conditions as a diabetic cataract model. BECN1 and LC3B were detected by Western blotting and quantitative real-time PCR. The extent of apoptosis was measured using FACSCalibur flow cytometry.

Results: Downregulation of miR-30a was identified in LECs attached to diabetic cataract tissues. By the bioinformatic assay and the luciferase activity assay, BECN1 was found to be a direct target of miR-30a. MiR-30a reduced the BECN1-mediated autophagy activity induced by high glucose in LECs . The ratio of LECs apoptosis was also decreased.

Conclusion: MiR-30a was involved in the inhibition of autophagy by targeting BECN1 in LECs in human diabetic cataract.

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