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Mediators of Inflammation

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https://www.readbyqxmd.com/read/28634422/lipopolysaccharide-binding-protein-downregulates-fractalkine-through-activation-of-p38-mapk-and-nf-%C3%AE%C2%BAb
#1
Xia Huang, Yi Zeng, Yujie Jiang, Yueqiu Qin, Weigui Luo, Shulin Xiang, Suren R Sooranna, Liao Pinhu
BACKGROUND: LBP and fractalkine are known to be involved in the pathogenesis of ARDS. This study investigated the relationship between LBP and fractalkine in LPS-induced A549 cells and rat lung tissue in an ARDS rat model. METHODS: A549 cells were transfected with LBP or LBP shRNA plasmid DNA or pretreated with SB203580 or SC-514 following LPS treatment. An ARDS rat model was established using LPS with or without LBPK95A, SB203580, or SC-514 treatment. RT-PCR, western blotting, ELISA, immunofluorescence, coimmunoprecipitation, and immunohistochemical staining were used to study the expression of fractalkine and LBP and p38 MAPK and p65 NF-κB activities...
2017: Mediators of Inflammation
https://www.readbyqxmd.com/read/28634421/the-role-of-von-willebrand-factor-in-vascular-inflammation-from-pathogenesis-to-targeted-therapy
#2
REVIEW
Felice Gragnano, Simona Sperlongano, Enrica Golia, Francesco Natale, Renatomaria Bianchi, Mario Crisci, Fabio Fimiani, Ivana Pariggiano, Vincenzo Diana, Andreina Carbone, Arturo Cesaro, Claudia Concilio, Giuseppe Limongelli, Mariagiovanna Russo, Paolo Calabrò
Beyond its role in hemostasis, von Willebrand factor (VWF) is an emerging mediator of vascular inflammation. Recent studies highlight the involvement of VWF and its regulator, ADAMTS13, in mechanisms that underlie vascular inflammation and immunothrombosis, like leukocyte rolling, adhesion, and extravasation; vascular permeability; ischemia/reperfusion injury; complements activation; and NETosis. The VWF/ADAMTS13 axis is implicated in the pathogenesis of atherosclerosis, promoting plaque formation and inflammation through macrophage and neutrophil recruitment in inflamed lesions...
2017: Mediators of Inflammation
https://www.readbyqxmd.com/read/28634420/characterization-of-the-proinflammatory-profile-of-synovial-fluid-derived-exosomes-of-patients-with-osteoarthritis
#3
Rossana Domenis, Rossella Zanutel, Federica Caponnetto, Barbara Toffoletto, Adriana Cifù, Cinzia Pistis, Paolo Di Benedetto, Araldo Causero, Massimo Pozzi, Fabrizio Bassini, Martina Fabris, Kayvan R Niazi, Patrick Soon-Shiong, Francesco Curcio
The purpose of this study is to characterize synovial fluid- (SF-) derived exosomes of patients with gonarthrosis comparing two methods of isolation and to investigate their immune regulatory properties. Extracellular vesicles (EVs) have been isolated from inflamed SF by polymer precipitation method and quantified by Exocet kit and by nanoparticle tracking analysis. Vesicles expressed all the specific exosomal markers by immunoblot and FACS. After isolation with Exoquick, a relevant contamination by immune complexes was detected, which required further magnetic bead-based purification to remove...
2017: Mediators of Inflammation
https://www.readbyqxmd.com/read/28634419/elevated-plasma-levels-of-sil-2r-in-complex-regional-pain-syndrome-a-pathogenic-role-for-t-lymphocytes
#4
Krishna D Bharwani, Maaike Dirckx, Dirk L Stronks, Willem A Dik, Marco W J Schreurs, Frank J P M Huygen
The immune system has long been thought to be involved in the pathophysiology of complex regional pain syndrome (CRPS). However, not much is known about the role of the immune system and specifically T-cells in the onset and maintenance of this disease. In this study, we aimed to evaluate T-cell activity in CRPS by comparing blood soluble interleukin-2 receptor (sIL-2R) levels between CRPS patients and healthy controls. CRPS patients had statistically significant elevated levels of sIL-2R as compared to healthy controls (median sIL-2R levels: 4151 pg/ml (Q3 - Q1 = 5731 pg/ml - 3546 pg/ml) versus 1907 pg/ml (Q3 - Q1: 2206 pg/ml - 1374 pg/ml), p < 0...
2017: Mediators of Inflammation
https://www.readbyqxmd.com/read/28626346/neutrophils-in-tuberculosis-heterogeneity-shapes-the-way
#5
REVIEW
Irina V Lyadova
Infection with M. tuberculosis remains one of the most common infections in the world. The outcome of the infection depends on host ability to mount effective protection and balance inflammatory responses. Neutrophils are innate immune cells implicated in both processes. Accordingly, during M. tuberculosis infection, they play a dual role. Particularly, they contribute to the generation of effector T cells, participate in the formation of granuloma, and are directly involved in tissue necrosis, destruction, and infection dissemination...
2017: Mediators of Inflammation
https://www.readbyqxmd.com/read/28626345/fungal-dimorphism-and-virulence-molecular-mechanisms-for-temperature-adaptation-immune-evasion-and-in-vivo-survival
#6
REVIEW
Gregory M Gauthier
The thermally dimorphic fungi are a unique group of fungi within the Ascomycota phylum that respond to shifts in temperature by converting between hyphae (22-25°C) and yeast (37°C). This morphologic switch, known as the phase transition, defines the biology and lifestyle of these fungi. The conversion to yeast within healthy and immunocompromised mammalian hosts is essential for virulence. In the yeast phase, the thermally dimorphic fungi upregulate genes involved with subverting host immune defenses. This review highlights the molecular mechanisms governing the phase transition and recent advances in how the phase transition promotes infection...
2017: Mediators of Inflammation
https://www.readbyqxmd.com/read/28626344/increased-transendothelial-transport-of-ccl3-is-insufficient-to-drive-immune-cell-transmigration-through-the-blood-brain-barrier-under-inflammatory-conditions-in-vitro
#7
Maxime De Laere, Carmelita Sousa, Megha Meena, Roeland Buckinx, Jean-Pierre Timmermans, Zwi Berneman, Nathalie Cools
Many neuroinflammatory diseases are characterized by massive immune cell infiltration into the central nervous system. Identifying the underlying mechanisms could aid in the development of therapeutic strategies specifically interfering with inflammatory cell trafficking. To achieve this, we implemented and validated a blood-brain barrier (BBB) model to study chemokine secretion, chemokine transport, and leukocyte trafficking in vitro. In a coculture model consisting of a human cerebral microvascular endothelial cell line and human astrocytes, proinflammatory stimulation downregulated the expression of tight junction proteins, while the expression of adhesion molecules and chemokines was upregulated...
2017: Mediators of Inflammation
https://www.readbyqxmd.com/read/28626343/anti-osm-antibody-inhibits-tubulointerstitial-lesion-in-a-murine-model-of-lupus-nephritis
#8
Qingjuan Liu, Yunxia Du, Kejun Li, Wei Zhang, Xiaojuan Feng, Jun Hao, Hongbo Li, Shuxia Liu
The purpose of this study was to investigate the role of oncostatin M (OSM) in tubulointerstitial lesion (TIL) in lupus nephritis (LN). We found that OSM was highly expressed in the renal tissue of LN mice. OSM is one of the interleukin-6 cytokine family members. In order to clarify the role and mechanism of OSM in LN, mice with LN were treated with anti-OSM antibody or isotype antibody. We evaluated the tubular epithelial-mesenchymal transdifferentiation (EMT) by detecting the E-cadherin, α-smooth muscle actin (α-SMA), and fibronectin (FN) expression...
2017: Mediators of Inflammation
https://www.readbyqxmd.com/read/28626342/effects-of-src-kinase-inhibition-on-expression-of-protein-tyrosine-phosphatase-1b-after-brain-hypoxia-in-a-piglet-animal-model
#9
Dimitrios Angelis, Maria Delivoria-Papadopoulos
BACKGROUND: Protein tyrosine phosphatases (PTPs) in conjunction with protein tyrosine kinases (PTKs) regulate cellular processes by posttranslational modifications of signal transduction proteins. PTP nonreceptor type 1B (PTP-1B) is an enzyme of the PTP family. We have previously shown that hypoxia induces an increase in activation of a class of nonreceptor PTK, the Src kinases. In the present study, we investigated the changes that occur in the expression of PTP-1B in the cytosolic component of the brain of newborn piglets acutely after hypoxia as well as long term for up to 2 weeks...
2017: Mediators of Inflammation
https://www.readbyqxmd.com/read/28611508/correlation-between-il36%C3%AE-and-il17-and-activity-of-the-disease-in-selected-autoimmune-blistering-diseases
#10
Agnieszka Żebrowska, Anna Woźniacka, Katarzyna Juczyńska, Kamila Ociepa, Elżbieta Waszczykowska, Izabela Szymczak, Rafał Pawliczak
Dermatitis herpetiformis (DH), bullous pemphigoid (BP), and pemphigus vulgaris (PV) are autoimmune bullous skin conditions with eosinophilic and neutrophilic infiltrations. While cytokines are crucial for the affinity and activation of different leukocyte cells in the inflammation and blister formation, there are no studies concerning a role of IL-36. The goal of the study was to analyze whether interleukin 36 is involved in pathogenesis of DH, BP, and PV. And the second aim of the study was the estimation of correlation between Il-36 and IL-17 and titers of specific antibodies in these diseases...
2017: Mediators of Inflammation
https://www.readbyqxmd.com/read/28611507/a-proinflammatory-effect-of-the-%C3%AE-glucan-from-pleurotus-cornucopiae-mushroom-on-macrophage-action
#11
Ken-Ichiro Minato, Akihiro Ohara, Masashi Mizuno
PCPS from P. citrinopileatus mushroom extract is a β-1,6-glucan possessing a proinflammatory effect on innate immune cells. The PCPS stimulated THP-1 macrophages to secrete significant levels of TNF. Moreover, the mRNA expressions of TNF and IL-1β were significantly enhanced by PCPS treatment. However, the PCPS did not induce to express both IL-12 and IL-10 mRNA in the macrophages. Next, the P. cornucopiae extract (containing mainly PCPS) treatment against mice showed significant increases in TNF and IL-1β mRNA expressions in the peritoneal macrophages of them...
2017: Mediators of Inflammation
https://www.readbyqxmd.com/read/28607536/the-many-roles-of-galectin-3-a-multifaceted-molecule-in-innate-immune-responses-against-pathogens
#12
REVIEW
Laura Díaz-Alvarez, Enrique Ortega
Galectins are a group of evolutionarily conserved proteins with the ability to bind β-galactosides through characteristic carbohydrate-recognition domains (CRD). Galectin-3 is structurally unique among all galectins as it contains a C-terminal CRD linked to an N-terminal protein-binding domain, being the only chimeric galectin. Galectin-3 participates in many functions, both intra- and extracellularly. Among them, a prominent role for Galectin-3 in inflammation has been recognized. Galectin-3 has also been shown to directly bind to pathogens and to have various effects on the functions of the cells of the innate immune system...
2017: Mediators of Inflammation
https://www.readbyqxmd.com/read/28607535/gender-disparity-in-the-relationship-between-prevalence-of-thyroid-nodules-and-metabolic-syndrome-components-the-shdc-cdpc-community-based-study
#13
Xiaoying Ding, Ying Xu, Yufan Wang, Xiaohua Li, Chunhua Lu, Jing Su, Yuting Chen, Yuhang Ma, Yanhua Yin, Yong Wu, Yaqiong Jin, Lihua Yu, Junyi Jiang, Naisi Zhao, Qingwu Yan, Andrew S Greenberg, Haiyan Sun, Mingyu Gu, Li Zhao, Yunhong Huang, Yijie Wu, Chunxian Qian, Yongde Peng
The study is aimed to investigate the pathogenesis underlying the increased prevalence of thyroid nodule (TN) in different levels of metabolic syndrome (MetS) components and analyze the relationships between TN and MetS components. A total of 6,798 subjects, including 2201 patients with TN, were enrolled in this study. Anthropometric, biochemical, thyroid ultrasonographic, and other metabolic parameters were all measured. There was obviously sexual difference in the prevalence of TN (males 26.0%, females 38...
2017: Mediators of Inflammation
https://www.readbyqxmd.com/read/28607534/challenging-a-misnomer-the-role-of-inflammatory-pathways-in-inflammatory-breast-cancer
#14
REVIEW
Riley J Morrow, Nima Etemadi, Belinda Yeo, Matthias Ernst
Inflammatory breast cancer is a rare, yet highly aggressive form of breast cancer, which accounts for less than 5% of all locally advanced presentations. The clinical presentation of inflammatory breast cancer often differs significantly from that of noninflammatory breast cancer; however, immunohistochemistry reveals few, if any, distinguishing features. The more aggressive triple-negative and HER2-positive breast cancer subtypes are overrepresented in inflammatory breast cancer compared with noninflammatory breast cancer, with a poorer prognosis in response to conventional therapies...
2017: Mediators of Inflammation
https://www.readbyqxmd.com/read/28607533/cysteinyl-leukotrienes-as-potential-pharmacological-targets-for-cerebral-diseases
#15
REVIEW
Paolo Gelosa, Francesca Colazzo, Elena Tremoli, Luigi Sironi, Laura Castiglioni
Cysteinyl leukotrienes (CysLTs) are potent lipid mediators widely known for their actions in asthma and in allergic rhinitis. Accumulating data highlights their involvement in a broader range of inflammation-associated diseases such as cancer, atopic dermatitis, rheumatoid arthritis, and cardiovascular diseases. The reported elevated levels of CysLTs in acute and chronic brain lesions, the association between the genetic polymorphisms in the LTs biosynthesis pathways and the risk of cerebral pathological events, and the evidence from animal models link also CysLTs and brain diseases...
2017: Mediators of Inflammation
https://www.readbyqxmd.com/read/28607532/altered-cytokine-expression-and-barrier-properties-after-in-vitro-infection-of-porcine-epithelial-cells-with-enterotoxigenic-escherichia-coli-and-probiotic-enterococcus-faecium
#16
Martina Kern, Dorothee Günzel, Jörg R Aschenbach, Karsten Tedin, Angelika Bondzio, Ulrike Lodemann
The aim of the present study was to elucidate the effects of the probiotic feed additive Enterococcus faecium NCIMB 10415 (E. faecium) on porcine jejunal epithelial cells (IPEC-J2) during an in vitro challenge with enterotoxigenic Escherichia coli (ETEC). Cells were incubated with E. faecium, ETEC, or both, and the effects on barrier function and structure and intra- and intercellular signaling were determined. Coincubation with E. faecium abolished the ETEC-induced decrease in transepithelial resistance (Rt) (p ≤ 0...
2017: Mediators of Inflammation
https://www.readbyqxmd.com/read/28607531/endogenous-il-33-deficiency-exacerbates-liver-injury-and-increases-hepatic-influx-of-neutrophils-in-acute-murine-viral-hepatitis
#17
Virginie Carrière, Muhammad Imran Arshad, Jacques Le Seyec, Benjamin Lefevre, Muhammad Farooq, Aurélien Jan, Christelle Manuel, Laurence Touami-Bernard, Catherine Lucas-Clerc, Valentine Genet, Hugues Gascan, Jean-Philippe Girard, Frédéric Chalmel, Lucie Lamontagne, Claire Piquet-Pellorce, Michel Samson
The alarmin IL-33 has been described to be upregulated in human and murine viral hepatitis. However, the role of endogenous IL-33 in viral hepatitis remains obscure. We aimed to decipher its function by infecting IL-33-deficient mice (IL-33 KO) and their wild-type (WT) littermates with pathogenic mouse hepatitis virus (L2-MHV3). The IL-33 KO mice were more sensitive to L2-MHV3 infection exhibiting higher levels of AST/ALT, higher tissue damage, significant weight loss, and earlier death. An increased depletion of B and T lymphocytes, NKT cells, dendritic cells, and macrophages was observed 48 h postinfection (PI) in IL-33 KO mice than that in WT mice...
2017: Mediators of Inflammation
https://www.readbyqxmd.com/read/28596642/a-double-blinded-randomized-study-investigating-a-possible-anti-inflammatory-effect-of-saxagliptin-versus-placebo-as-add-on-therapy-in-patients-with-both-type-2-diabetes-and-stable-coronary-artery-disease
#18
Ida Unhammer Njerve, Sissel Åkra, Thomas W Weiss, Svein Solheim, Reidun Øvstebø, Hans Christian D Aass, Rune Byrkjeland, Harald Arnesen, Ingebjørg Seljeflot
BACKGROUND: Promising results regarding potential anti-inflammatory and antiatherosclerotic effects of gliptins have been reported. Our aim was to investigate whether saxagliptin treatment modifies expression of inflammatory markers, primarily in peripheral blood mononuclear cells (PBMCs) and in circulating leukocytes in patients with stable coronary artery disease (CAD) and T2DM. METHODS: Patients (n = 12) were randomized to saxagliptin 5 mg daily or placebo for 3 months...
2017: Mediators of Inflammation
https://www.readbyqxmd.com/read/28596641/gene-electrotransfer-of-plasmid-encoding-il-12-recruits-the-m1-macrophages-and-antigen-presenting-cells-inducing-the-eradication-of-aggressive-b16f10-murine-melanoma
#19
Ursa Lampreht Tratar, Luisa Loiacono, Maja Cemazar, Urska Kamensek, Vito Michele Fazio, Gregor Sersa, Emanuela Signori
Cancer immunotherapy is currently one of the leading approaches in cancer treatment. Gene electrotransfer of plasmids encoding interleukin 12 (IL-12) into the cells leads to the production of IL-12, which drives immune cell polarization to an antitumoral response. One of the cell types that shows great promise in targeting tumor cells under the influence of IL-12 cytokine milieu is that of macrophages. Therefore, the aim of this study was to evaluate gene electrotransfer of antibiotic resistance-free plasmid DNA-encoding murine IL-12 (mIL-12) in mice bearing aggressive B16F10 murine melanoma...
2017: Mediators of Inflammation
https://www.readbyqxmd.com/read/28592917/persistent-unresolved-inflammation-in-the-mecp2-308-female-mutated-mouse-model-of-rett-syndrome
#20
Alessio Cortelazzo, Claudio De Felice, Bianca De Filippis, Laura Ricceri, Giovanni Laviola, Silvia Leoncini, Cinzia Signorini, Monica Pescaglini, Roberto Guerranti, Anna Maria Timperio, Lello Zolla, Lucia Ciccoli, Joussef Hayek
Rett syndrome (RTT) is a rare neurodevelopmental disorder usually caused by mutations in the X-linked gene methyl-CpG-binding protein 2 (MECP2). Several Mecp2 mutant mouse lines have been developed recapitulating part of the clinical features. In particular, Mecp2-308 female heterozygous mice, bearing a truncating mutation, are a validated model of the disease. While recent data suggest a role for inflammation in RTT, little information on the inflammatory status in murine models of the disease is available...
2017: Mediators of Inflammation
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