Document Type : Original Article(s)


1 Isfahan Pharmaceutical Sciences Research Center AND Department of Clinical Biochemistry, School of Pharmacy and Pharmaceutical Sciences, Isfahan University of Medical Sciences, Isfahan, Iran

2 Professor, Research Center for Molecular Medicine, Hamadan University of Medical Sciences, Hamadan, Iran

3 Assistant Professor, Research Center for Molecular Medicine, Hamadan University of Medical Sciences, Hamadan, Iran

4 Professor, Research Center for Molecular Medicine AND Department of Clinical Biochemistry, School of Medicine, Hamadan University of Medical Sciences, Hamadan, Iran

5 Professor, Isfahan Pharmaceutical Sciences Research Center AND Department of Clinical Biochemistry, School of Pharmacy and Pharmaceutical Sciences, Isfahan University of Medical Sciences, Isfahan, Iran


BACKGROUND: Atherosclerosis is one of the predominant causes of cardiovascular disease (CVD). Several studies indicated the significant pathophysiological role of salusin-β in atherosclerosis. Cytokines are involved in all stages of atherosclerosis. Therefore, we aimed to assess the effect of salusin-β on interleukin 6 (IL-6), interleukin 8 (IL-8), interleukin 18 (IL-18) (as inflammatory cytokines) and interleukin 1Ra (IL-1Ra) (as anti-inflammatory cytokines) levels in human umbilical vein endothelial cells (HUVECs).METHODS: The HUVECs were cultured in HUVEC completed medium and treated with different doses of salusin-β for 6 and 12 hours. For the investigation of nuclear factor ƙβ (NF-ƙβ) signaling pathway involvement, cells were treated in the presence or absence of Bay 11-7082 (as NF-ƙβ inhibitor). The mRNA expression and protein level of cytokines were measured by a real-time polymerase chain reaction (PCR) system and enzyme-linked immunosorbent assay (ELISA) method, respectively.RESULTS: Salusin-β increased mRNA expression and protein level of IL-6, IL-8 and IL-18. This protein decreased mRNA and protein level of IL-1Ra in HUVECs. NF-ƙβ signaling pathway was involved in the up-regulatory effect of salusin-β on mRNA expression of pro-inflammatory cytokines. The down-regulatory effect of salusin-β on IL-1Ra expression could not be influenced by Bay 11-7082 pre-treatment.CONCLUSION: It seems that salusin-β may participate in a cascade pathway in vascular inflammation. Our findings suggested that salusin-β has potential use as a therapeutic target for atherosclerosis.


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