Abstract
Diabetic cardiomyopathy (DCM) is one of the major complications in patients with diabetes mellitus. Recently, long noncoding RNAs (lncRNAs) have been well concerned for their roles in the progression of multiple diseases, including DCM. In this research, we aimed to explore the role of lncRNA LUCAT1 in cardiomyocyte injury and apoptosis induced by high glucose (HG) in vitro. High glucose-induced (HG-induced) AC16 cardiomyocytes transfected with LUCAT1 shRNA were constructed. LUCAT1 expression was detected by real-time quantitative polymerase chain reaction (RT-qPCR). Subsequently, cell proliferation and cell apoptosis were detected after LUCAT1 knockdown in HG-induced AC16 cells. Moreover, RT-qPCR and Western blot assay were performed to explore the potential underlying mechanism of LUCAT1 in DCM. The expression of LUCAT1 was significantly upregulated in HG-treated AC16 cardiomyocytes. Moreover, knockdown of LUCAT1 could reverse cardiomyocyte injury and apoptosis through downregulating CYP11B2. We first demonstrated that knockdown of LUCAT1 could reverse HG-induced cardiomyocyte injury by down-regulating CYP11B2. Our findings might offer a new direction for interpreting the mechanism of DCM development.
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