Abstract
Inflammation and oxidative stress play pivotal role in the process of atherosclerosis. Scorpion venom is widely used as anti-cancer agent, however, the anti-inflammatory and antioxidant activities of scorpion venom peptides (SVPs) are rarely explored. In the current study, seven novel SVPs were isolated in a protective activity tracking isolation method in a cell model of benzo(α)pyrene (BaP)-induced human umbilical vein endothelial cells (HUVECs). The current study showed that SVP-1 [Tyr-Thr-Trp-Glu-Ala] significantly attenuated BaP-induced reactive oxygen species (ROS) over-production and inflammatory cytokines (IL-6, IL-1β, TNF-α, NO and PGE2) over-expression. Furthermore, SVP-1 attenuated BaP-induced adhesion molecules over-expression and inhibited the NF-κB and AhR signalling pathways activation. Collectively, the present study, for the first time, shows that SVPs inhibit the NF-κB and AhR signalling pathways in HUVECs under BaP-exposure, which strongly suggests the therapeutic potential of SVPs against atherosclerosis.
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