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Micro-RNA 7975 directly regulates MDTH expression and mediates endothelial cell proliferation and migration in the development of early atherosclerosis

Karere, G.; Wagner, N.

2024-10-18 genomics
10.1101/2024.10.15.618502 bioRxiv
Show abstract

Cardiovascular disease (CVD) is commonly due to the development of atherosclerosis. Endothelial integrity is critical in the prevention of pathogenesis of atherosclerosis. The key to prevention of CVD is understanding the molecular mechanisms responsible for initiation of early atherosclerosis. MiRNAs are mediators of endothelial homeostasis, and their dysregulation could lead to early atherosclerotic disorder. We previously revealed the expression of miR-7975 in early atherosclerotic lesions. The aim of this study was to investigate the novel roles of miR-7975 on endothelial cell proliferation and migration, and in the regulation of metadherin (MTDH) expression. We performed proliferation and migration assays coupled with luciferase assay. We show that miR-7975 promotes proliferation and migration of endothelial cells and that miR-7976 directly regulates (MTDH), previously associated with cancer pathogenesis. In conclusion our results show miR-7975 could be a potential mediator of endothelial homeostasis and that MTDH is a novel target of miR-7975.

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