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Expression of membrane-bound CX3CL1, a CX 3 C chemokine, can be strongly induced by inflammatory cytokines in primary endothelial cells, mediating capture and tight adhesion of cells, such as monocytes, that carry the CX 3 CR1 receptor. Here, we measured CX3CL1 mRNA and protein induction by human aortic smooth muscle cells (SMCs), another major component of vessel walls, in response...
TL1A (VEGI/TNFSF15) is the ligand for DR3 (TNFRSF12) and is a newly identified member of the tumor necrosis factor superfamily (TNFSF). Previously, DR3 has been shown to have a role in atherogenesis through stimulation of matrix degrading enzymes including matrix metalloproteinase (MMP)-9. Immunohistochemical staining of human carotid atherosclerotic plaques revealed a high-level expression of TL1A...
Increasing data suggest that ischemic heart disease (IHD) shares several characteristics with common inflammatory diseases (such as rheumatoid arthritis), in which the pathogenetic role of inflammatory gene polymorphisms is well established. Variants in the genes for the major histocompatibility complex (MHC) molecules on the short arm of chromosome 6 show profound “linkage disequilibrium”, leading...
Background. Inflammatory processes have importance in atherosclerosis. We evaluated if subjects below 55 years of age with occlusive carotid artery disease have higher serum levels of antibodies against oxidized LDL and endothelial cells and the chemokines MCP-1 and RANTES than age matched subjects without atherosclerosis. Methods and results. Sixty patients with occlusive carotid artery disease (stenosis...
Background: Resistin is a novel cysteine-rich protein that plays a role in the development of insulin resistance and atherosclerosis in rodents, while its role in humans is unclear. C-reactive protein (CRP) is an important risk predictor for coronary heart disease, and it can also modify the expression of genes involved in atherogenesis. Statins have been demonstrated to possess lipid lowering effects...
Background and purpose: Atherosclerosis is an inflammatory disease. Chemokines and chemokine receptors are known to be involved in atherogenesis. Common single nucleotide polymorphisms (SNPs) affect transcription in response to inflammatory stimuli. The aim of this study was to evaluate the correlations between MCP-1, RANTES, SDF-1, CCR2, and CCR5 gene polymorphisms with increased risk of internal...
Interleukin-12 (IL-12) has been identified as a pro-inflammatory cytokine which is thought to contribute to the development of atherosclerosis. However, to date, the various associations between factors related to the course of type 2 diabetes, like metabolic compensation, beta cell secretory dysfunction, insulin resistance and IL-12 serum levels, remain unclear. Our study involved 41 patients with...
Monocyte adhesion to the arterial endothelium and subsequent migration into the intima are central events in the pathogenesis of atherosclerosis. Previous experimental models have shown that chemokines can enhance monocyte–endothelial adhesion by activating monocyte integrins. Our study assesses the role of chemokines IL-8, MCP-1 and GRO-α, together with their monocyte receptors CCR2 and CXCR2 in...
Objective: Atherosclerosis is a chronic inflammatory disease regulated by T lymphocyte subsets. Recently, CD4 + CD25 + Foxp3 + regulatory T (Treg) cells and Th17 cells have been described as two distinct subsets and have the opposite effects on autoimmunity. Clinical observation has revealed that the Th17/Treg imbalance exists in patients with acute coronary syndrome. We investigated...
Objective: Previous studies have established that hydrolysis of LDL by Group V secretory phospholipase A 2 (GV sPLA 2 ) generates a modified particle capable of inducing macrophage foam cell formation. The aim of the present study was to determine whether GV sPLA 2 -hydrolyzed LDL (GV-LDL) produces pro-atherogenic effects in macrophages independent of cholesterol accumulation...
Background: Monocyte chemoattractant protein-1 (MCP-1) facilitates the recruitment of monocytes/macrophages into vascular intima, and it is probably involved in the regulation of other signaling pathways relevant to the pathogenesis of arteriosclerosis and metabolic disturbances. However, chemokines are redundant. Consequently, the protective effect of MCP-1 deficiency may be mediated by changes in...
Women with polycystic ovary syndrome (PCOS) have chronic low level inflammation which can increase the risk of atherogenesis. We evaluated the status of circulating macrophage migration inhibitory factor (MIF), a proinflammatory cytokine involved in atherogenesis, in women with PCOS and weight-matched controls. Two-way analysis of variance models adjusted for age were fit to evaluate the effect of...
IL-18 is a proinflammatory cytokine that is important for host defense, but is also involved in the pathogenesis of a number of disease processes, ranging from autoimmune disorders to atherosclerosis. IL-18 binding protein (IL-18BP) is a constitutively expressed glycoprotein that specifically neutralizes the effects of IL-18, resulting in decreased production of IFN-γ and reduction in Th1 immune responses...
CXCL16 has been shown to be involved in atherosclerotic lesion development, but its role in preexisting lesions is still unclear. This study aims to assess the effect of CXCL16 on the stability of preexisting lesions.We firstly measured plasma CXCL16 level in Apolipoprotein E–Knockout (ApoE KO) mice with either high-cholesterol diet (HCD) or normal diet (ND) by enzyme-linked immunosorbent assay (ELISA)...
The effects of LDL-apheresis (LDLa) with dextran sulphate on plasma cytokines in 6 homozygous familial hypercholesterolemic (HozFH) patients, were evaluated.Plasma IL-1α; IL-1ra; IL-4; IL-6; IL-10; IL-12(p40); IL-12(p70); TNF-α, sTNF-R, VEGF, VEGF-R1, E-Selectin (ESEL), and P-Selectin (PSEL) concentrations were measured before and after LDLa on three consecutive sessions for each patient.TNF-α was...
In vitro, stimulation of monocytes with antiphospholipid (aPL) antibodies resulted in increased secretion of TNF-alpha, but association of aPL with features of diabetes mellitus is not clarified yet. Therefore, we investigated the distribution of anticardiolipin (aCL), anti-β2gpI (aβ2gpI), anti-annexin A5 (aannxA5), and anti-oxLDL (aoxLDL) antibodies, and TNF-alpha in well-formed group of 78 patients...
Therapeutic plasmapheresis is a recognized medical procedure in which various techniques are used to separate and remove undesirable or excessively elevated plasma elements from blood. The main purpose of the procedure is to remove the substances responsible for the disease (autoantibodies, circulating immune complexes, lipoproteins and other molecules) from the patient’s blood. Low-Density-Lipoproteins-apheresis...
Available evidence on the effects of therapeutic plasmapheresis (TP) techniques and in particular lipid- and LDL-apheresis (LDL-a) on plasmatic inflammatory mediators including cytokines were reviewed. Studies on this issue are not numerous. However, the review of existing evidence clearly suggests an active role of apheresis on the profile of inflammatory molecules and on cytokine pattern in plasma...
Coronary artery calcification (CAC) is a marker for the presence and extent of coronary atherosclerotic plaques and can be detected non-invasively by multi-detector row CT (MDCT). Well known predictors of CAC are age, gender, and the classical atherogenic risk factors. CAC is associated with atherosclerotic plaque burden, but it is still elusive if atherosclerosis-relevant cytokines and chemokines...
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