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Article Abstract
Endothelial dysfunction is a main early event in the onset of atherosclerosis and cardiovascular diseases. This study explores the ameliorating effects of ark shell-derived multifunctional peptides, AWLNH (P3) and PHDL (P4), against oxLDL-driven endothelial dysfunction in human umbilical vein endothelial cells (HUVECs). P3 and P4 significantly improved cell viability, enhanced nitric oxide levels, and upregulated endothelial nitric oxide synthase expression while suppressing oxLDL-stimulated lectin-like oxidized low-density lipoprotein receptor-1 expression. Additionally, P3 and P4 exhibited potent antioxidant activity by lowering intracellular ROS levels and lipid peroxidation, and increasing antioxidant enzyme activity. Furthermore, P3 and P4 inhibited oxLDL-induced endothelial cell apoptosis by modulating Bax/Bcl-2 ratio and preserving mitochondrial membrane potential. Moreover, P3 and P4 mitigated vascular inflammation through downregulating intercellular adhesion molecule-1 and vascular cell adhesion molecule-1expression. Our findings showed that P3 and P4 ameliorate oxLDL-induced endothelial dysfunction, providing insights into bioactive peptide-based therapeutics in vascular therapy.
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| http://dx.doi.org/10.1016/j.tice.2025.103116 | DOI Listing |
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