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Glucagon-Like Peptide Receptor Agonist Inhibits Angiotensin II-Induced Proliferation and Migration in Vascular Smooth Muscle Cells and Ameliorates Phosphate-Induced Vascular Smooth Muscle Cells Calcification
Jinmi Lee, Seok-Woo Hong, Min-Jeong Kim, Sun Joon Moon, Hyemi Kwon, Se Eun Park, Eun-Jung Rhee, Won-Young Lee
Diabetes Metab J. 2024;48(1):83-96.   Published online January 3, 2024
DOI: https://doi.org/10.4093/dmj.2022.0363
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AbstractAbstract PDFSupplementary MaterialPubReader   ePub   
Background
Glucagon-like peptide-1 receptor agonist (GLP-1RA), which is a therapeutic agent for the treatment of type 2 diabetes mellitus, has a beneficial effect on the cardiovascular system.
Methods
To examine the protective effects of GLP-1RAs on proliferation and migration of vascular smooth muscle cells (VSMCs), A-10 cells exposed to angiotensin II (Ang II) were treated with either exendin-4, liraglutide, or dulaglutide. To examine the effects of GLP-1RAs on vascular calcification, cells exposed to high concentration of inorganic phosphate (Pi) were treated with exendin-4, liraglutide, or dulaglutide.
Results
Ang II increased proliferation and migration of VSMCs, gene expression levels of Ang II receptors AT1 and AT2, proliferation marker of proliferation Ki-67 (Mki-67), proliferating cell nuclear antigen (Pcna), and cyclin D1 (Ccnd1), and the protein expression levels of phospho-extracellular signal-regulated kinase (p-Erk), phospho-c-JUN N-terminal kinase (p-JNK), and phospho-phosphatidylinositol 3-kinase (p-Pi3k). Exendin-4, liraglutide, and dulaglutide significantly decreased the proliferation and migration of VSMCs, the gene expression levels of Pcna, and the protein expression levels of p-Erk and p-JNK in the Ang II-treated VSMCs. Erk inhibitor PD98059 and JNK inhibitor SP600125 decreased the protein expression levels of Pcna and Ccnd1 and proliferation of VSMCs. Inhibition of GLP-1R by siRNA reversed the reduction of the protein expression levels of p-Erk and p-JNK by exendin-4, liraglutide, and dulaglutide in the Ang II-treated VSMCs. Moreover, GLP-1 (9-36) amide also decreased the proliferation and migration of the Ang II-treated VSMCs. In addition, these GLP-1RAs decreased calcium deposition by inhibiting activating transcription factor 4 (Atf4) in Pi-treated VSMCs.
Conclusion
These data show that GLP-1RAs ameliorate aberrant proliferation and migration in VSMCs through both GLP-1Rdependent and independent pathways and inhibit Pi-induced vascular calcification.

Citations

Citations to this article as recorded by  
  • Incretin Hormone Secretion in Women with Polycystic Ovary Syndrome: Roles of Obesity, Insulin Sensitivity and Treatment with Metformin and GLP-1s
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    Biomedicines.2024; 12(3): 653.     CrossRef
  • Cardiometabolic Crossroads: Obesity, Sleep-Disordered Breathing, and Epicardial Adipose Tissue in Heart Failure with Preserved Ejection Fraction – A Mini-Review
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    Heart and Mind.2024;[Epub]     CrossRef
  • BRCC36 regulates β-catenin ubiquitination to alleviate vascular calcification in chronic kidney disease
    Yalan Li, Xiaoyue Chen, Yiqing Xiong, Xueqiang Xu, Caidie Xie, Min Min, Dongmei Liang, Cheng Chen, Huijuan Mao
    Journal of Translational Medicine.2024;[Epub]     CrossRef
  • Perioperative Glucagon-Like Peptide-1 Agonist Use and Rates of Pseudarthrosis After Single-Level Lumbar Fusion: A Large Retrospective Cohort Study
    Vedant Agrawal, Saketh Amasa, Mert Karabacak, Konstantinos Margetis
    Neurosurgery.2024;[Epub]     CrossRef

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