Abstract
Objective
To observe the protective effect and mechanism of hydroxyl safflower yellow A (HSYA) from myocardial ischemia-reperfusion injury on human umbilical vein endothelial cells (HUVECs).
Methods
HUVECs were treated with oxygen-glucose deprivation reperfusion (OGD/R) to simulate the ischemia reperfusion model, and cell counting kit-8 was used to detect the protective effect of different concentrations (1.25–160 µ mol/L) of HSYA on HUVECs after OGD/R. HSYA 80 µ mol/L was used for follow-up experiments. The contents of inflammatory cytokines interleukin (IL)-18, IL-1 β, monocyte chemotactic protein 1 (MCP-1), tumor necrosis factor α (TNF-α) and IL-6 before and after administration were measured by enzyme-linked immunosorbent assay. The protein expressions of toll-like receptor, NOD-like receptor containing pyrin domain 3 (NLRP3), gasdermin D (GSDMD) and GSDMD-N-terminal domain (GSDMD-N) before and after administration were detected by Western blot. NLRP3 inflammasome inhibitor cytokine release inhibitory drug 3 sodium salt (CRID3 sodium salt, also known as MCC950) and agonist were added, and the changes of NLRP3, cysteine-aspartic acid protease 1 (Caspase-1), GSDMD and GSDMD-N protein expressions were detected by Western blot.
Results
HSYA inhibited OGD/R-induced inflammation and significantly decreased the contents of inflammatory cytokines IL-18, IL-1 β, MCP-1, TNF-α and IL-6 (P<0.01 or P<0.05). At the same time, by inhibiting NLRP3/Caspase-1/GSDMD pathway, HSYA can reduce the occurrence of pyroptosis after OGD/R and reduce the expression of NLRP3, Caspase-1, GSDMD and GSDMD-N proteins (P<0.01).
Conclusions
The protective effect of HSYA on HUVECs after OGD/R is related to down-regulating the expression of NLRP3 inflammasome and inhibiting pyroptosis.
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Li LM: conceptualization, funding acquisition, project administration and investigation; Guo F: conceptualization, visualization, writing—original draft, formal analysis, and writing—review & editing; Han X, Zhang YH, Ren JG: resources; You Y, Xu SJ, Chen YY, Xin GJ, Liu ZX, Cao C: investigation; Fu JH: conceptualization, funding acquisition, and supervision. Fu JH and Li LM contributed equally to this study.
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Supported by the Youth Planning Project of Beijing Science and Technology Development Fund for Chinese Medicine (No. QN-2020-14), Innovation Fund of China Academy of Chinese Medical Sciences (No. CI2021A00912), and Scientific Fund of National Clinical Research Center for Chinese Medicine Cardiology (No. CMC2022005)
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Guo, F., Han, X., You, Y. et al. Hydroxysafflor Yellow A Inhibits Pyroptosis and Protecting HUVECs from OGD/R via NLRP3/Caspase-1/GSDMD Pathway. Chin. J. Integr. Med. (2024). https://doi.org/10.1007/s11655-023-3716-y
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DOI: https://doi.org/10.1007/s11655-023-3716-y