PubMed Journals Articles About "Enhanced Formation Neutrophil Extracellular Traps Kawasaki Disease" RSS

13:43 EST 25th February 2020 | BioPortfolio

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Showing "Enhanced formation neutrophil extracellular traps Kawasaki disease" PubMed Articles 1–25 of 37,000+

Enhanced formation of neutrophil extracellular traps in Kawasaki disease.

Neutrophils contribute to the clearance of pathogens through the formation of neutrophil extracellular traps (NETs) in a process known as NETosis, but the excessive release of NETs has been reported to be involved in the pathogenesis of various diseases, including vasculitis, by inducing tissue injury. The aim of the present study was to investigate whether or not NETosis is enhanced in the acute phase of Kawasaki disease (KD).

Neutrophil Extracellular Traps and Liver Disease.

Neutrophil extracellular traps, or NETs, are heterogenous, filamentous structures which consist of extracellular DNA, granular proteins, and histones. NETs are extruded by a neutrophil in response to various stimuli. Although NETs were initially implicated in immune defense, subsequent studies have implicated NETs in a spectrum of disease processes, including autoimmune disease, thrombosis, and cancer. NETs also contribute to the pathogenesis of several common liver diseases, including alcohol-associated li...

NETched in Stone.

Gallstone formation in adults is a common, yet incompletely understood disease process. In this issue, Muñoz et al. (2019) report a pathogenic link between neutrophil extracellular traps (NETs) and the formation of gallstones.

Neutrophil Extracellular Traps Induce Intestinal Damage and Thrombotic Tendency in Inflammatory Bowel Disease.

Despite the presence of neutrophil extracellular traps (NETs) in inflamed colon has been confirmed, the role of NETs, especially the circulating NETs, in the progression and thrombotic tendency of inflammatory bowel disease (IBD) remains elusive. We extended our previous study to prove that NETs constitute a central component in the progression and prothrombotic state of IBD.

Markers of endothelial cell activation and neutrophil extracellular traps are elevated in immune thrombocytopenia but are not enhanced by thrombopoietin receptor agonists.

Patients with immune thrombocytopenia (ITP) are at increased risk of thrombosis, which seems to be further enhanced by treatment with thrombopoietin-receptor-agonists (TPO-RAs). The underlying mechanisms of thrombosis in ITP are not fully understood. Endothelial cell activation and neutrophil extracellular traps (NETs) play important roles in thrombosis, however, their roles in ITP itself, or in TPO-RA-treatment, have not yet been fully explored. We aimed to investigate whether endothelial cell activation a...

Neutrophil Extracellular Traps Associate with Clinical Stages in Breast Cancer.

Recently, neutrophil extracellular traps (NETs), three-dimensional structures formed of neutrophil enzymes such as neutrophil elastase (NE) and nuclear components (DNA), have been associated with progression in different types of cancer. However, data remain scarce in breast cancer. Thus, the aim of this study was to associate NETs with clinical stages of breast cancer. A prospective analysis was performed in 45 plasma samples of female patients with newly diagnosed breast cancer. NE-DNA complexes were eval...

MiR-182-5p enhances in vitro neutrophil infiltration in Kawasaki disease.

Kawasaki disease (KD) patients could develop coronary artery lesion (CAL) which threatens children's life. A previous study identified KD biomarker miRNAs that could discriminate KD patients from febrile non-KD patients. We wonder whether these KD prediction biomarkers could be further applied to predict CAL formation in KD patients.

Neutrophil-to-lymphocyte ratio as a biomarker for predicting the intravenous immunoglobulin-resistant Kawasaki disease.

In recent years, many studies focused on the association between the neutrophil-to-lymphocyte ratio (NLR) and the risk of intravenous immunoglobulin (IVIG)-resistant Kawasaki disease (rKD), with inconsistent results. Therefore, we aimed to investigate the role of NLR as a biomarker in detecting rKD.

Transketolase and vitamin B1 influence on ROS-dependent neutrophil extracellular traps (NETs) formation.

Neutrophil extracellular traps (NETs) are a recently identified, web-like, extracellular structure composed of decondensed nuclear DNA and associated antimicrobial granules. NETs are extruded into the extracellular environment via the reactive oxygen species (ROS)-dependent cell death pathway participating in inflammation and autoimmune diseases. Transketolase (TKT) is a thiamine pyrophosphate (vitamin B1)-dependent enzyme that links the pentose phosphate pathway with the glycolytic pathway by feeding exces...

Hookworms Evade Host Immunity by Secreting a Deoxyribonuclease to Degrade Neutrophil Extracellular Traps.

Hookworms cause a major neglected tropical disease, occurring after larvae penetrate the host skin. Neutrophils are phagocytes that kill large pathogens by releasing neutrophil extracellular traps (NETs), but whether they target hookworms during skin infection is unknown. Using a murine hookworm, Nippostrongylus brasiliensis, we observed neutrophils being rapidly recruited and deploying NETs around skin-penetrating larvae. Neutrophils depletion or NET inhibition altered larvae behavior and enhanced the numb...

Nanosilver induces the formation of neutrophil extracellular traps in mouse neutrophil granulocytes.

As a new type of antibacterial agent, nanosilver has attracted great attention in biomedical applications. However, the safety of nanosilver to humans and the environment has not been well elucidated. The objective of this study was to investigate the influence of nanosilver on novel effector mechanism of neutrophil extracellular traps (NETs), and its possible molecular mechanisms. In this study, nanosilver (10, 20 and 40 μg/mL) was incubated with neutrophils for 90 min. Then, nanosilver-induced the re...

Casting A Wide Net On Surgery: The Central Role of Neutrophil Extracellular Traps.

: Since their discovery, neutrophil extracellular traps (NETs) have been implicated in a broad array of functions, both beneficial and detrimental to the host. Indeed, NETs have roles in infection, sepsis, wound healing, thrombotic disease, and cancer propagation, all of which are directly implicated in the care of surgical patients. Here we provide an updated review on the role of NETs in the perioperative period with specific emphasis on perioperative infections, wound healing, vascular complications, can...

Neutrophil Elastase Activity as a Surrogate Marker for Neutrophil Extracellular Traps Formation following Hematopoietic Stem Cell Transplantation.

Impaired neutrophil extracellular traps (NETs) formation compromises the host defense after engraftment following hematopoietic stem cell transplantation (HSCT) despite adequate neutrophil counts. The aims of the study were to determine reference ranges for the activity of key enzymes of NET formation, neutrophil elastase (NE) and myeloperoxidase (MPO) in a healthy population and to unravel the recovery dynamics of NETs formation over time following HSCT, along with NE and MPO enzymatic activities. Referenc...

Inhibition of neutrophil elastase prevents neutrophil extracellular trap formation and rescues mice from endotoxic shock.

Neutrophil elastase (NE) is a serine protease stored in the azurophilic granules of neutrophils and released into the extracellular milieu during inflammatory response or formation of neutrophil extracellular traps (NETs). Neutrophils release NETs to entrap pathogens by externalizing their cellular contents in a DNA framework decorated with anti-microbials and proteases, including NE. Importantly, excess NETs in tissues are implicated in numerous pathologies, including sepsis, rheumatoid arthritis, vasculit...

Neutrophil extracellular traps-associated markers are elevated in patients with systemic lupus erythematosus.

Neutrophil extracellular traps (NETs) are the main source of autoantigens in systemic lupus erythematosus (SLE). The aim of this study was to evaluate the clinical importance of NETs-associated markers in SLE. We compared NETs-associated markers in SLE patients (n = 111) with healthy controls (n = 50). Moreover, in 35 patients with drug-naïve SLE (n = 35), we investigated correlation between NETs-associated markers [DNase I concentration, myeloperoxidase (MPO) activity, anti-MPO antibodies, cel...

Comments on: Neutrophil extracellular traps (NETs) contribute to pathological changes of ocular graft-vs.-host disease (oGVHD) dry eye: Implications for novel biomarkers and therapeutic strategies.

Prospective Evaluation of Neutrophil-to-Lymphocyte Ratio and Platelet-to-Lymphocyte Ratio for Intravenous Immunoglobulin Resistance in a Large Cohort of Kawasaki Disease Patients.

The evaluation of neutrophil-to-lymphocyte ratio and platelet-to-lymphocyte ratio for intravenous immunoglobulin resistance prediction was prospectively performed in a large cohort of Kawasaki disease patients. It was found that the predictive values of neutrophil-to-lymphocyte ratio and platelet-to-lymphocyte ratio, alone or combined, were not good enough although they were identified as independent risk factors for intravenous immunoglobulin resistance.

Neutrophil extracellular traps induced by cigarette smoke contribute to airway inflammation in mice.

Neutrophil extracellular traps (NETs) were initially identified as an important antimicrobial barrier to capture and kill microorganisms. Emerging evidence suggests that NETs play a crucial role in chronic airway inflammation induced by cigarette smoke (CS). However, how NETs form and the mechanisms by which NETs function in CS-related airway diseases are still unclear. To explore NET formation and its potential role in CS-related airway diseases, we first established a CS-induced subacute airway inflammati...

DNA-bound elastase of neutrophil extracellular traps degrades plasminogen, reduces plasmin formation, and decreases fibrinolysis: proof of concept in septic shock plasma.

Activation of platelets and neutrophils in septic shock results in the formation of microvascular clots containing an intricate scaffold of fibrin with neutrophil extracellular traps (NETs) DNA. NETs contain multiple components that might impact endogenous fibrinolysis, resulting in failure to lyse clots in the microcirculation and residual systemic microthrombosis. We propose herein that the reservoir of human neutrophil elastase (HNE) on NETs may directly interfere with the fibrinolytic mechanism a plasm...

White Blood Cell and Neutrophil Counts and Response to Intravenous Immunoglobulin in Kawasaki Disease.

We explored parameters to predicting the efficacy of intravenous immunoglobulin (IVIG) therapy for patients with Kawasaki disease (KD). We retrospectively analyzed the laboratory data of 77 children with KD treated with IVIG. Data obtained before and within 24 hours after IVIG therapy were compared between responders and nonresponders. The white blood cell (WBC) and neutrophil counts were significantly lower in responders than nonresponders within 24 hours after IVIG. The areas under the receiver operating ...

Extracellular DNA NET-Works With Dire Consequences for Health.

Neutrophils play a central role in innate immune defense. Advances in neutrophil biology have brought to light the capacity of neutrophils to release their decondensed chromatin and form large extracellular DNA networks called neutrophil extracellular traps (NETs). NETs are produced in response to many infectious and noninfectious stimuli and, together with fibrin, block the invasion of pathogens. However, their formation in inflamed blood vessels produces a scaffold that supports thrombosis, generates neo-...

Primary tumors induce neutrophil extracellular traps with targetable metastasis promoting effects.

Targeting the dynamic tumor immune microenvironment (TIME) can provide effective therapeutic strategies for cancer. Neutrophils are the predominant leukocyte population in mice and humans, and mounting evidence implicates these cells during tumor growth and metastasis. Neutrophil extracellular traps (NETs) are networks of extracellular neutrophil DNA fibers that are capable of binding tumor cells to support metastatic progression. Here we demonstrate for the first time that circulating NET levels are elevat...

Neutrophil dysregulation is pathogenic in idiopathic inflammatory myopathies.

Idiopathic inflammatory myopathies (IIM) are characterized by muscle inflammation and weakness, myositis specific autoantibodies (MSAs) and extramuscular organ damage. The role of neutrophil dysregulation and neutrophil extracellular traps (NETs) in IIM is unclear. We assessed if pathogenic neutrophil subsets (low-density granulocytes, LDGs) and NETs were elevated in IIM, associated with clinical presentation and MSAs, and their effect on skeletal myoblasts and myotubes.

Chemokine CXCb1 stimulates formation of NETs in trunk kidney neutrophils of common carp.

Both in mammals and in fish, CXC chemokines activate leukocytes and regulate their migration both under normal physiological and inflammatory conditions. Moreover, in mammalian neutrophils CXC chemokines also stimulate the formation of neutrophil extracellular traps (NETs). Here, we investigated the effects of recombinant carp CXCL8s and CXCb1 on NET formation in neutrophils from the head (HK) and trunk (TK) kidney of carp. We found that neither recombinant CXCL8s nor CXCb1 stimulated DNA release in HK-deri...

Activation of Factor XII and Kallikrein-kinin System Combined with Neutrophil Extracellular Trap Formation in Diabetic Retinopathy.

In diabetic retinopathy (DR), neutrophil extracellular traps (NET) and kallikrein-kinin system are considered as contributing factors. However, the detail activation mechanisms has not been fully understood. Since the NET could provide negative-charged surface for factor XII activation and the activated factor XII (XIIa) can initiate kallikrein-kinin system, this study investigated whether patients with DR show activation of NET, factor XII and kallikrein-kinin system.

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