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This study aimed to investigate the involvement of long non-coding RNA (lncRNA) lung adenocarcinoma transcript 1 (LUADT1) LUADT1 in diabetic retinopathy (DR). We found LUADT1 may interact with miR-383 by RNA interaction prediction. QPCR analysis showed that lncRNA LUADT1 was downregulated, and miR-383 was upregulated in DR. However, correlation analysis revealed no significant correlation between them. In retinal pigment epithelial cells (RPEpiC, h1RPE7 from Sigma-Aldrich), overexpression of LUADT1 and miR-383 failed to affect the expression of each other. However, LUADT1 overexpression led to increased and miR-383 overexpression led to decreased expression level of peroxiredoxin 3 (PRX3). Cell apoptosis analysis showed that LUADT1 and PRX3 overexpression resulted in the decreased cell apoptosis. MiR-383 played an opposite role and reduced the effects of LUADT1 and PRX3 overexpression. Therefore, LUADT1 regulates PRX3 by serving as the endogenous sponge of miR-383 in DR to regulate cell apoptosis.

LncRNA LUADT1 inhibits cell apoptosis in diabetic retinopathy by regulating miR-383/peroxiredoxin 3 axis