Angiotensin II (Ang II) is a bioactive peptide that is related to cardiovascular disease such as atherosclerosis, whereas angiotensin-(1-7) (Ang-(1-7)) is a counter-regulator of angiotensin II, which protects against cardiovascular disease.
In this study we explored the microRNAs responsible for the regulation of PAI-1 during LPS-stimulated inflammation in human aortic endothelial cells and subsequently studied the effect of a newly synthesized mitochondria-targeted esculetin (Mito-Esc) that was shown for its anti-atherosclerotic potential, in modulating PAI-1 levels and its targeted miRs during angiotensin-II-induced atherosclerosis in ApoE<sup>-/-</sup> mice.
Interestingly, in a model of enhanced vascular inflammation using angiotensin II, P2Y(6) deficiency enhanced formation of aneurysms and exhibited a trend towards increased atherosclerosis in the aorta of LDLR knockout mice.
Additionally, lncRNAs have been associated with angiotensin II actions and with vascular diseases, including coronary heart disease and atherosclerosis. miRNAs, well studied in various vascular diseases, have also been recently shown to be differentially expressed in the biofluids of patients with vascular disease and mediate cell-cell communication.
Transfection with GPE nanoparticle carrying AGT shRNA can stably lower the blood pressure and improve the atherosclerotic lesions which lead to the delayed development of early atherosclerotic lesions in hypertension rats with concomitant atherosclerosis.
During active disease, patients with granulomatosis with polyangiitis (GPA; Wegener's granulomatosis) have accelerated atherosclerosis and ANGII inhibitors are recommended to these patients to reduce atherosclerosis.
Regulator of G-protein signaling 2 (RGS2) is a key molecule in signal pathways of vasoactive peptides, such as angiotensin II and endothelin 1, and is believed to have an important role in the pathophysiology of atherosclerosis.
To further elucidate the role of COUP-TFII, we performed DNA microarrays in VEC transfected with the siRNA of COUP-TFII and subsequently stimulated with angiotensin II (AngII) and compared the expression profiles of 112 genes involved in various atherosclerosis-related pathways.