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Novel function of fluvastatin in attenuating oxidized low-density lipoprotein-induced endothelial cell ferroptosis in a glutathione peroxidase4- and cystine-glutamate antiporter-dependent manner
Exp Ther Med. 2021 Nov;22(5):1275. doi: 10.3892/etm.2021.10710. Epub 2021 Sep 8.ABSTRACTOxidized low-density lipoprotein (ox-LDL) induces endothelial cell apoptosis and dysfunction. Statins are drugs that are clinically used to lower serum cholesterol levels, and they have been shown to exert vascular protective effects. In the present study, human umbilical vein endothelial cells were transfected with scramble control siRNA or siRNA specific for glutathione peroxidase (GPx)4 or cystine-glutamate antiporter (xCT). MTT, Matrigel and Transwell assays were used to evaluate cell proliferation, tube formation and migration, res...
Source: Experimental and Therapeutic Medicine - October 1, 2021 Category: General Medicine Authors: Qing Li Chang Liu Liang Deng Enrui Xie Nishant Yadav Yuanyuan Tie Zheng Cheng Jie Deng Source Type: research

Simvastatin Suppresses Human Breast Cancer Cell Invasion by Decreasing the Expression of Pituitary Tumor-Transforming Gene 1
Statins, or 3-hydroxy-3-methylglutaryl-coenzyme A reductase inhibitors, have been widely used to lower cholesterol and prevent cardiovascular diseases. Recent preclinical and clinical studies have shown that statins exert beneficial effects in the management of breast cancer, while the underlying mechanisms remain to be elucidated. Herein, we sought to investigate the effect of statins on the expression of pituitary tumor-transforming gene 1 (PTTG1), a critical gene involved in human breast cancer invasion and metastasis. Our results showed that PTTG1 is highly expressed in malignant Hs578T and MDA-MB-231 breast cancer cel...
Source: Frontiers in Pharmacology - November 4, 2020 Category: Drugs & Pharmacology Source Type: research

Fluvastatin inhibits AGE-induced cell proliferation and migration via an ERK5-dependent Nrf2 pathway in vascular smooth muscle cells
by Ae-Rang Hwang, Jung-Hwa Han, Jae Hyang Lim, Young Jin Kang, Chang-Hoon Woo Advanced glycation endproduct (AGE)-induced vascular smooth muscle cell (VSMC) proliferation and reactive oxygen species (ROS) production are emerging as important mechanisms of diabetic vasculopathy, but little is known about the molecular mechanism responsible for the antioxidative effects of st atins on AGEs. It has been reported that statins exert pleiotropic effects on the cardiovascular system due to decreases in AGE-induced cell proliferation, migration, and vascular inflammation. Thus, in the present study, the authors investigated the m...
Source: PLoS One - May 22, 2017 Category: Biomedical Science Authors: Ae-Rang Hwang Source Type: research

The anti ‑dengue virus properties of statins may be associated with alterations in the cellular antiviral profile expression.
The anti‑dengue virus properties of statins may be associated with alterations in the cellular antiviral profile expression. Mol Med Rep. 2016 Jul 13; Authors: Bryan-Marrugo OL, Arellanos-Soto D, Rojas-Martinez A, Barrera-Saldaña H, Ramos-Jimenez J, Vidaltamayo R, Rivas-Estilla AM Abstract Dengue virus (DENV) susceptibility to cholesterol depleting treatments has been previously reported. There are numerous questions regarding how DENV seizes cellular machinery and cholesterol to improve viral production and the effect of cholesterol sequestering agents on the cellular antiviral response. The aim of...
Source: Molecular Medicine Reports - July 21, 2016 Category: Molecular Biology Tags: Mol Med Rep Source Type: research

Statins meditate anti-atherosclerotic action in smooth muscle cells by peroxisome proliferator-activated receptor-γ activation.
Abstract The peroxisome proliferator-activated receptor-γ (PPARγ) is an important regulator of lipid and glucose metabolism, and its activation is reported to suppress the progression of atherosclerosis. We have reported that 3-hydroxy-3-methylglutaryl coenzyme A reductase inhibitors (statins) activate PPARγ in macrophages. However, it is not yet known whether statins activate PPARγ in other vascular cells. In the present study, we investigated whether statins activate PPARγ in smooth muscle cells (SMCs) and endothelial cells (ECs) and thus mediate anti-atherosclerotic effects. Human aortic SMCs (HASMCs) and ...
Source: Biochemical and Biophysical Research communications - December 18, 2014 Category: Biochemistry Authors: Fukuda K, Matsumura T, Senokuchi T, Ishii N, Kinoshita H, Yamada S, Murakami S, Nakao S, Motoshima H, Kondo T, Kukidome D, Kawasaki S, Kawada T, Nishikawa T, Araki E Tags: Biochem Biophys Res Commun Source Type: research

Statins upregulate cystathionine γ-lyase transcription and H2S generation via activating Akt signaling in macrophage
In this study, we examined the effects of three different statins (fluvastatin, atorvastatin and pravastatin) on H2S formation in raw264.7 macrophages. There was a remarkable rise in H2S level in fluvastatin- and atorvastatin-stimulated macrophages, while pravastatin failed to show any significant effect on it. Moreover, fluvastatin and atorvastatin enhanced the mRNA and protein expression of cystathionine γ-lyase (CSE) in dose- and time-dependent manners. Fluvastatin also markedly enhanced the CSE activity. However, fluvastatin did not alter the mRNA or protein expression of another H2S-producing enzyme 3-mercaptopyruvat...
Source: Pharmacological Research - November 6, 2014 Category: Drugs & Pharmacology Source Type: research