Up-regulated lncRNA-PVT1 expression in peripheral blood mononuclear cells of patients with coronary artery disease is correlated with decreased interleukin-10 production

Abstract

Background: Plasmacytoma variant translocation 1 (PVT1) is a newly discovered long non-coding RNA (lncRNA), and it has not been previously studied in the in ammatory responses of peripheral blood mononuclear cells (PBMCs) of patients with coronary artery disease (CAD).Methods: This cross-sectional study was conducted in 15 CAD patients and 15 non-CAD (NCAD) individuals. PVT1 expression in PBMCs of the participants was measured, using real-time PCR.Interleukin (IL)-10, IL-22 and MMP-9 in the plasma and supernatant of the cultured PBMCs in the presence or absence of lipopolysaccharide (LPS) was assessed, using owcytometry and ELISA.Results: An increased expression of PVT1 was observed in untreated PBMCs of CAD patients compared to the NCAD group. There was a signi cant up-regulation of PVT1 after LPS treatment in PBMCs of both groups. Plasma matrix metalloproteinase-9 (MMP-9) levels were found to be higher in CAD patients compared to the controls. The level of IL-10 and IL-22 production from the non-treated PBMCs of CAD was signi cantly lower compared to the NCAD group. In the total examined population, PVT1 expression was negatively correlated with IL-10 secretion. The results also showed a signi cant negative correlation between PVT1 expression and IL-10 produced by untreated cells.Conclusions: PVT1 expression is increased in PBMCs of CAD patients and this increased expression could be associated with decreased IL-10 production from PBMCs of these patients. Background:Coronary artery disease (CAD) is considered as principal cause of death and disability leading to increased health economic burden worldwide (1). The most common form of CAD is atherosclerosis