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Cardioprotective Effects of Phlorizin on Hyperlipidemia-induced Myocardial Injury: Involvement of Suppression in Pyroptosis Via Regulating HK1/NLRP3/Caspase-1 Signaling Pathway

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Date 2024 Sep 2
PMID 39223343
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Abstract

Hyperlipidemia (HLP) is a prevalent and intricate condition that plays a pivotal role in impairing heart function. The primary objective of this study was to assess the lipid-lowering and cardioprotective properties of phlorizin (PHZ) and to investigate its potential molecular mechanisms in rats. In this investigation, Sprague-Dawley rats were subjected to a high-fat diet for a period of 28 days to induce an HLP model. Subsequently, the rats received oral doses of PHZ or metformin from day 14 to day 28. We assessed various parameters using commercially available kits, including serum lipid deposition, myocardial injury biomarkers, oxidative stress markers, and inflammatory cytokine levels. We also employed electron microscopy to examine myocardial ultrastructural changes and conducted Western blot analyses to assess apoptosis factors and pyroptosis markers. Comparing the PHZ group with the model group, we observed significant improvements in blood lipid deposition and heart injury biomarkers. Furthermore, PHZ demonstrated a clear reduction in myocardial tissue oxidative stress and inflammatory factors, as well as a suppression of cell apoptosis. Subsequent investigations indicated that PHZ treatment led to a decreased inflammatory response and lowered levels of hexokinase 1 (HK1), NOD-like receptor thermal protein domain associated protein 3 (NLRP3), apoptosis-associated speck-like protein containing a caspase recruitment domain (ASC), and Caspase-1. In summary, PHZ proved to be an effective remedy for alleviating HLP-induced cardiac damage by reducing blood lipid levels, mitigating oxidative stress, curbing inflammation, and suppressing pyroptosis. The inhibition of pyroptosis by PHZ appears to be linked to the regulation of the HK1/NLRP3/Caspase-1 signaling pathway.

References
1.
Yu Y, Pan Y, Fan Z, Xu S, Gao Z, Ren Z . LuHui Derivative, A Novel Compound That Inhibits the Fat Mass and Obesity-Associated (FTO), Alleviates the Inflammatory Response and Injury in Hyperlipidemia-Induced Cardiomyopathy. Front Cell Dev Biol. 2021; 9:731365. PMC: 8647038. DOI: 10.3389/fcell.2021.731365. View

2.
Wu W, Bao W, Chen X, Lu Y, Fang J, Liu J . Endothelial Gata6 deletion reduces monocyte recruitment and proinflammatory macrophage formation and attenuates atherosclerosis through Cmpk2-Nlrp3 pathways. Redox Biol. 2023; 64:102775. PMC: 10363430. DOI: 10.1016/j.redox.2023.102775. View

3.
Meng M, Jia R, Wei M, Meng X, Zhang X, Du R . Oxidative stress activates Ryr2-Ca and apoptosis to promote PM-induced heart injury of hyperlipidemia mice. Ecotoxicol Environ Saf. 2022; 232:113228. DOI: 10.1016/j.ecoenv.2022.113228. View

4.
Chen X, Yu W, Li W, Zhang H, Huang W, Wang J . An anti-inflammatory chalcone derivative prevents heart and kidney from hyperlipidemia-induced injuries by attenuating inflammation. Toxicol Appl Pharmacol. 2017; 338:43-53. DOI: 10.1016/j.taap.2017.11.003. View

5.
Zhang L, Liu X, Huang M, Wang R, Zhu W, Li Y . Metformin Inhibits HaCaT Cell Proliferation Under Hyperlipidemia Through Reducing Reactive Oxygen Species via FOXO3 Activation. Clin Cosmet Investig Dermatol. 2022; 15:1403-1413. PMC: 9326038. DOI: 10.2147/CCID.S368845. View