Department of Internal Medicine, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, South Korea.
Physiol Res. 2020 Dec 22;69(6):1095-1102. doi: 10.33549/physiolres.934480. Epub 2020 Nov 2.
Glucagon-like peptide-1 receptor (GLP1R) agonist is an incretin hormone and regulates glucose metabolism. However, phthalates, known as endocrine disruptors, can interfere with hormone homeostasis. In the present study, we aimed to estimate the impact of GLP1R agonist on di(2 ethylhexyl) phthalate (DEHP)-induced atherosclerosis. For this purpose, the effects of GLP1R agonist on various atherogenesis-related cellular processes and pathways were assessed in vascular smooth muscle cells (VSMCs). DEHP-induced cell proliferation and migration were significantly decreased by GLP1R agonist in VSMCs. Protein levels of matrix metalloproteinase (MMP)-2 and MMP-9 were significantly decreased in cells exposed to GLP1R agonist, compared with DEHP-treated cells. Expression levels of intercellular adhesion molecule 1 and vascular cell adhesion molecule 1 were also reduced in GLP1R agonist-treated cells. Similarly, DEHP-associated phosphorylation of protein kinase B and extracellular signal-regulated kinase 1/2 was decreased in GLP1R agonist-treated cells, compared with DEHP-treated cells. Our findings suggest that treatment with GLP1R agonist counteracts the activation of pathways related to atherosclerosis.
胰高血糖素样肽-1 受体 (GLP1R) 激动剂是一种肠促胰岛素激素,可调节葡萄糖代谢。然而,邻苯二甲酸酯作为内分泌干扰物,会干扰激素平衡。在本研究中,我们旨在评估 GLP1R 激动剂对邻苯二甲酸二(2-乙基己基)酯 (DEHP) 诱导的动脉粥样硬化的影响。为此,在血管平滑肌细胞 (VSMC) 中评估了 GLP1R 激动剂对各种动脉粥样硬化相关细胞过程和途径的影响。GLP1R 激动剂可显著降低 VSMC 中 DEHP 诱导的细胞增殖和迁移。与 DEHP 处理的细胞相比,GLP1R 激动剂处理的细胞中基质金属蛋白酶 (MMP)-2 和 MMP-9 的蛋白水平显著降低。细胞间黏附分子 1 和血管细胞黏附分子 1 的表达水平在 GLP1R 激动剂处理的细胞中也降低。同样,与 DEHP 处理的细胞相比,GLP1R 激动剂处理的细胞中蛋白激酶 B 和细胞外信号调节激酶 1/2 的磷酸化也减少。我们的研究结果表明,GLP1R 激动剂的治疗可拮抗与动脉粥样硬化相关的途径的激活。