Rhodiola and Salidroside Attenuate Oxidative Stress-Triggered H9c2 Cardiomyoblast Apoptosis Through IGF1R-Induced ERK1/2 Activation

SAL protects endothelial cells from H2O2-induced endothelial dysfunction: Regulation of inflammation and autophagy by EZH2

One component of the polycomb repressor complex 2 is histone methyltransferase zeste homolog 2 (EZH2), which is also called Enhancer of zeste homolog 2. It is considered a potential therapeutic target for inhibiting endothelial dysfunction.. Hence, directing efforts towards EZH2 to weaken endothelium damage and regulate vascular lesions proves to be a highly successful therapeutic approach for enhancing endothelial dysfunction. This study aimed to investigate the mechanism by which salidroside (SAL) improves hydrogen peroxide (H2O2)-induced endothelial dysfunction. The investigation involved the use of many techniques, including western blotting, real-time polymerase chain reaction (RT-PCR), a scratch test, molecular docking, and other methods. The experimental findings demonstrated that SAL has the ability to inhibit the impaired functioning of endothelial cells caused by H2O2 and decrease the levels of NF-κB p65, NLRP3, TNF-α, Beclin1, LC3, and P62 proteins. Additionally, there seems to be a targeting relationship between SAL and EZH2, and EZH2 knockdown can reproduce the protective effect of SAL on endothelial function. Overall, SAL inhibits H2O2-induced HUVEC dysfunction by regulating autophagy and inflammatory signaling pathways through EZH2.