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https://www.readbyqxmd.com/read/28820405/antiphospholipid-syndrome-and-monocytes-new-aspects
#1
A Blbulyan, A Martirosyan, M Petrek, Z Navratilova, G Manukyan
After discovery of antiphospholipid syndrome (APS) our understanding of molecular mechanisms of living matter has become more sophisticated and on this way monocytes has become crucial player, particularly in pathogenesis of APS. Thrombotic and non-thrombotic complications of APS could be explained by monocytes' activation too. But mechanisms underlying their activation are poorly investigated. So we aimed to determine transcriptional activity of monocytes after exposing them to low concentrations of lipopolysaccharide (LPS) and LPS+ATP using comparative of RT-PCR...
July 2017: Georgian Medical News
https://www.readbyqxmd.com/read/28815242/-investigation-of-the-effect-of-nuclear-factor-%C3%AE%C2%BAb-on-inflammatory-cell-recruitment-phenotype-of-oral-cancer-associated-macrophage
#2
Xiao-Tian Zhou, Dong Chen, Zhen-Ning Jin, Ke Huang, Jie Lin, Yi Men, Chun-Jie Li
PURPOSE: To explore the ability of nuclear factor κB (NFκB) in sustaining inflammatory cell recruitment phenotype of oral cancer associated macrophages, by using NFκB inhibitor(-Bay11-7082). METHODS: By primary culture, murine macrophages were harvested. Cal27 conditioned medium (CM) and Bay11-7082 were applied for stimulation of the macrophages. RT-PCR and ELISA were used for detecting the inflammatory cell recruitment related chemotactic factors. GraphPadPrism5 was used for statistical analysis...
April 2017: Shanghai Kou Qiang Yi Xue, Shanghai Journal of Stomatology
https://www.readbyqxmd.com/read/28814754/unveiling-cerebral-leishmaniasis-parasites-and-brain-inflammation-in-leishmania-donovani-infected-mice
#3
Guilherme D Melo, Sophie Goyard, Laurence Fiette, Alexandre Boissonnas, Christophe Combadiere, Gisele F Machado, Paola Minoprio, Thierry Lang
Visceral leishmaniasis (VL) is a systemic disease with multifaceted clinical manifestations, including neurological signs, however, the involvement of the nervous system during VL is underestimated. Accordingly, we investigated both brain infection and inflammation in a mouse model of VL. Using bioluminescent Leishmania donovani and real-time 2D-3D imaging tools, we strikingly detected live parasites in the brain, where we observed a compartmentalized dual-phased inflammation pattern: an early phase during the first two weeks post-infection, with the prompt arrival of neutrophils and Ly6C(high) macrophages in an environment presenting a variety of pro-inflammatory mediators (IFN-γ, IL-1β, CXCL-10/CXCR-3, CCL-7/CCR-2), but with an intense anti-inflammatory response, led by IL-10; and a re-inflammation phase three months later, extremely pro-inflammatory, with novel upregulation of mediators, including IL-1β, TNF-α and MMP-9...
August 16, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28813446/variable-stretch-reduces-the-pro-inflammatory-response-of-alveolar-epithelial-cells
#4
Ines Rentzsch, Cíntia L Santos, Robert Huhle, Jorge M C Ferreira, Thea Koch, Christian Schnabel, Edmund Koch, Paolo Pelosi, Patricia R M Rocco, Marcelo Gama de Abreu
Mechanical ventilation has the potential to increase inflammation in both healthy and injured lungs. Several animal studies have shown that variable ventilation recruits the lungs and reduces inflammation. However, it is unclear which cellular mechanisms are involved in those findings. We hypothesized that variable stretch of LPS-stimulated alveolar epithelial cells (AECs) reduces the production of pro-inflammatory cytokines compared to non-variable stretch. AECs were subjected to non-variable or variable cyclic stretch (sinusoidal pattern), with and without LPS stimulation...
2017: PloS One
https://www.readbyqxmd.com/read/28810589/phenotypic-switch-in-lung-interstitial-macrophage-polarization-in-an-ovalbumin-induced-mouse-model-of-asthma
#5
Hanxiang Nie, Ailing Wang, Qing He, Qiaoyu Yang, Linlin Liu, Guqin Zhang, Yi Huang, Xuhong Ding, Hongying Yu, Suping Hu
Macrophage phenotype and function varies according to their polarized state, which in turn is dependent on microenvironmental stimuli. Under normal physiological conditions, lung interstitial macrophages that express interleukin (IL)-10 are considered to serve regulatory roles in the prevention of allergic reactions in the airways. However, the phenotypic profile of lung interstitial macrophages during the pathophysiology of asthma remains unknown. In the current study, the phenotypic characteristics of lung interstitial macrophages were investigated in an ovalbumin (OVA)-induced mouse model of asthma...
August 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28798369/inflammatory-role-of-dendritic-cells-in-amyotrophic-lateral-sclerosis-revealed-by-an-analysis-of-patients-peripheral-blood
#6
Michela Rusconi, Francesca Gerardi, William Santus, Andrea Lizio, Valeria Ada Sansone, Christian Lunetta, Ivan Zanoni, Francesca Granucci
Chronic inflammation is one of the causes of neurodegeneration in Amyotrophic lateral sclerosis (ALS). Here we examined whether circulating dendritic cells (DCs) can contribute to disease progression. We found ALS patients show a significant reduction in the number of circulating DCs. Also, patients' DCs present an increased expression of CD62L and a tendency to overexpress CCR2 compared with healthy donors. Moreover, DCs derived from a subpopulation of ALS patients produced higher levels of IL-8 and CCL-2 upon lipopolysaccharide (LPS)-stimulation...
August 10, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28797711/identification-of-a-myofibroblast-specific-expression-signature-in-skin-wounds
#7
Vera Bergmeier, Julia Etich, Lena Pitzler, Christian Frie, Manuel Koch, Matthias Fischer, Gunter Rappl, Hinrich Abken, James J Tomasek, Bent Brachvogel
After skin injury fibroblasts migrate into the wound and transform into contractile, extracellular matrix-producing myofibroblasts to promote skin repair. Persistent activation of myofibroblasts can cause excessive fibrotic reactions, but the underlying mechanisms are not fully understood. We used SMA-GFP transgenic mice to study myofibroblast recruitment and activation in skin wounds. Myofibroblasts were initially recruited to wounds three days post injury, their number reached a maximum after seven days and subsequently declined...
August 7, 2017: Matrix Biology: Journal of the International Society for Matrix Biology
https://www.readbyqxmd.com/read/28795083/mechanical-instability-and-titanium-particles-induce-similar-transcriptomic-changes-in-a-rat-model-for-periprosthetic-osteolysis-and-aseptic-loosening
#8
Mehdi Amirhosseini, Göran Andersson, Per Aspenberg, Anna Fahlgren
Wear debris particles released from prosthetic bearing surfaces and mechanical instability of implants are two main causes of periprosthetic osteolysis. While particle-induced loosening has been studied extensively, mechanisms through which mechanical factors lead to implant loosening have been less investigated. This study compares the transcriptional profiles associated with osteolysis in a rat model for aseptic loosening, induced by either mechanical instability or titanium particles. Rats were exposed to mechanical instability or titanium particles...
December 2017: Bone Reports
https://www.readbyqxmd.com/read/28790339/preventing-inflammation-inhibits-biopsy-mediated-changes-in-tumor-cell-behavior
#9
Maria Alieva, Andreia S Margarido, Tamara Wieles, Erik R Abels, Burcin Colak, Carla Boquetale, Herke Jan Noordmans, Tom J Snijders, Marike L Broekman, Jacco van Rheenen
Although biopsies and tumor resection are prognostically beneficial for glioblastomas (GBM), potential negative effects have also been suggested. Here, using retrospective study of patients and intravital imaging of mice, we identify some of these negative aspects, including stimulation of proliferation and migration of non-resected tumor cells, and provide a strategy to prevent these adverse effects. By repeated high-resolution intravital microscopy, we show that biopsy-like injury in GBM induces migration and proliferation of tumor cells through chemokine (C-C motif) ligand 2 (CCL-2)-dependent recruitment of macrophages...
August 8, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28774831/acoustic-stress-induces-long-term-severe-intestinal-inflammation-in-the-mouse
#10
Silvia Miranda, María Estela Roux
The influence of noise on the presentation and progression of inflammatory bowel diseases has been poorly analyzed. We designed this study to investigate immediate and late effects of acoustic stress (AS) on small intestine. To this aim, CBA/J, BALB/c and DBA/2 mice were divided into AS and control groups. AS mice were exposed to noise (300Hz-70dB) during 24hs and randomized into: A) Acute effects group: mice were killed after AS; L) Late effects group: mice were killed 3 weeks after AS and O) Over-exposed effects group: mice were submitted to AS once a week during a month and killed...
July 31, 2017: Toxicology Letters
https://www.readbyqxmd.com/read/28765037/vitamin-d-effects-on-monocytes%C3%AC-ccl-2-il6-and-cd14-transcription-in-addison-s-disease-and-hla-susceptibility
#11
A U Kraus, M Penna-Martinez, G Meyer, K Badenhoop
Addisońs disease is a rare autoimmune disorder leading to adrenal insufficiency and life-long glucocorticoid dependency. Vitamin D receptor (VDR) polymorphisms and vitamin D deficiency predispose to Addisońs disease. Aim of the current study was, to investigate potential anti-inflammatory vitamin D effects on monocytes in Addisońs disease, focusing on inflammatory CCL-2 and IL6, as well on monocyte CD14 markers. Addisońs disease is genetically linked to distinct HLA susceptibility alleles. Therefore we analyzed, whether HLA genotypes differed for vitamin D effects on monocyte markers...
July 29, 2017: Journal of Steroid Biochemistry and Molecular Biology
https://www.readbyqxmd.com/read/28764859/modeling-3d-csia-data-carbon-chlorine-and-hydrogen-isotope-fractionation-during-reductive-dechlorination-of-tce-to-ethene
#12
Boris M Van Breukelen, Heloïse A A Thouement, Philip E Stack, Mindy Vanderford, Paul Philp, Tomasz Kuder
Reactive transport modeling of multi-element, compound-specific isotope analysis (CSIA) data has great potential to quantify sequential microbial reductive dechlorination (SRD) and alternative pathways such as oxidation, in support of remediation of chlorinated solvents in groundwater. As a key step towards this goal, a model was developed that simulates simultaneous carbon, chlorine, and hydrogen isotope fractionation during SRD of trichloroethene, via cis-1,2-dichloroethene (and trans-DCE as minor pathway), and vinyl chloride to ethene, following Monod kinetics...
July 17, 2017: Journal of Contaminant Hydrology
https://www.readbyqxmd.com/read/28757683/chemokines-ccl3-ccl4-and-ccl5-inhibit-atp-induced-release-of-il-1%C3%AE-by-monocytic-cells
#13
Anca-Laura Amati, Anna Zakrzewicz, Kathrin Siebers, Sigrid Wilker, Sarah Heldmann, Dariusz Zakrzewicz, Andreas Hecker, J Michael McIntosh, Winfried Padberg, Veronika Grau
Chemokines and ATP are among the mediators of inflammatory sites that can enter the circulation via damaged blood vessels. The main function of chemokines is leukocyte mobilization, and ATP typically triggers inflammasome assembly. IL-1β, a potent inflammasome-dependent cytokine of innate immunity, is essential for pathogen defense. However, excessive IL-1β may cause life-threatening systemic inflammation. Here, we hypothesize that chemokines control ATP-dependent secretion of monocytic IL-1β. Lipopolysaccharide-primed human monocytic U937 cells were stimulated with the P2X7 agonist BzATP for 30 min to induce IL-1β release...
2017: Mediators of Inflammation
https://www.readbyqxmd.com/read/28755640/the-role-of-carbon-chain-length-in-the-attachment-between-microbubbles-and-aqueous-solutions-of-ionic-liquid
#14
E K Chew, K Y Lee, E V Lau
HYPOTHESIS: The effects of varying carbon chain lengths (CCLs) and concentrations of aqueous solutions of imidazolium based ionic liquids on bubble particle attachment (BPA) will provide a better understanding in catering for the varying degrees of surface activities in the application of the flotation technology. The general trends of this study should also be applicable to homologous series of other cationic surfactants and ionic liquids. EXPERIMENTS: Zeta potentials of small air bubbles and bunker oil drops dispersed in aqueous solutions of n-methylimidazolium chloride ionic liquids (n=0, 2, 3, 6, 8, 10, 12) of concentrations ranging from 1000PPM to 8000PPM, as were interfacial tensions of these solutions with bunker oil (180cst) and contact angles made by air bubbles at interfaces between these solutions and thin layers of bunker oil on flat solid surfaces were investigated...
July 20, 2017: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/28753646/associations-between-self-reported-diabetes-and-78-circulating-markers-of-inflammation-immunity-and-metabolism-among-adults-in-the-united-states
#15
Alison L Van Dyke, Krystle A Lang Kuhs, Meredith S Shiels, Jill Koshiol, Britton Trabert, Erikka Loftfield, Mark P Purdue, Nicolas Wentzensen, Ruth M Pfeiffer, Hormuzd A Katki, Allan Hildesheim, Troy J Kemp, Ligia A Pinto, Anil K Chaturvedi, Mahboobeh Safaeian
Inflammation is increasingly thought to be associated with diabetes; however, only a few inflammation markers have been assessed concurrently in relation to history of diabetes. In the most comprehensive evaluation of inflammation markers and diabetes to date using a Luminex bead-based assay, we measured 78 inflammation-, immune-, and metabolic-related markers detectable in at least 10% of serum samples collected from participants from the Prostate, Lung, Colorectal and Ovarian Cancer (PLCO) screening trial (n = 1,814)...
2017: PloS One
https://www.readbyqxmd.com/read/28742689/lymphangiogenic-gene-expression-is-associated-with-lymph-node-recurrence-and-poor-prognosis-after-partial-hepatectomy-for-colorectal-liver-metastasis
#16
Thomas T Vellinga, Onno Kranenburg, Nicola Frenkel, Inge Ubink, Dieuwke Marvin, Klaas Govaert, Susanne van Schelven, Jeroen Hagendoorn, Inne H Borel Rinkes
OBJECTIVES: To investigate the relevance of lymphangiogenic gene expression in primary and liver metastasis of colorectal cancer (CRC) and identify determinants of lymphatic invasion. BACKGROUND: Lymphatic development promoting vascular endothelial growth factor C (VEGFC) is associated with poor outcome in primary CRC. For colorectal liver metastasis (CRLM), intrahepatic lymph invasion and lymph node metastasis are poor prognostic factors. Exact biological factors promoting lymphatic involvement remain elusive, just as the association with molecular subtypes of CRC...
July 24, 2017: Annals of Surgery
https://www.readbyqxmd.com/read/28740214/compensatory-anabolic-signaling-in-the-sarcopenia-of-experimental-chronic-arthritis
#17
Robert D Little, Iván Prieto-Potin, Sandra Pérez-Baos, Amanda Villalvilla, Paula Gratal, Flavia Cicuttini, Raquel Largo, Gabriel Herrero-Beaumont
Inflammatory activity in rheumatoid arthritis may alter the regulation of muscle mass leading to a secondary sarcopenia, commonly termed rheumatoid cachexia (RC). We characterized alterations to muscle structure and various pro-inflammatory, catabolic and regenerative markers in an animal model of RC. Antigen induced arthritis (AiA) was performed in 20 male adult rabbits. AiA animals exhibited significantly less weight gain, a markedly elevated serum C-reactive protein (CRP), lighter muscles with shorter cross-sectional diameter and increased myonuclei when compared to controls...
July 24, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28730964/ccl2-is-modulated-by-cytokines-and-ppar-g-in-anaplastic-thyroid-cancer
#18
Silvia Martina Ferrari, Giusy Elia, Simona Piaggi, Enke Baldini, Salvatore Ulisse, Mario Miccoli, Gabriele Materazzi, Alessandro Antonelli, Poupak Fallahi
BACKGROUND AND OBJECTIVE: Chemokine (C-C motif) ligand (CCL)2, the prototype Th2 chemokine, is secreted by tumor cells, and has growth promoting effects. Whether CCL2 protumorigenic activities will be validated, then CCL2 and its receptor CCR2 may be therapeutic targets in cancer. METHODS: We tested in "primary human anaplastic thyroid carcinoma (ATC) cells" (ANA) versus "normal thyroid follicular cells" (TFC): a) CCL2 secretion basally, after IFN-g and/or TNF-a stimulation; b) PPARg activation by thiazolidinediones (TZDs), rosiglitazone or pioglitazone, on CCL2 secretion, and on proliferation and apoptosis in ANA...
July 19, 2017: Anti-cancer Agents in Medicinal Chemistry
https://www.readbyqxmd.com/read/28720906/trail-tnf-related-apoptosis-inducing-ligand-induces-an-inflammatory-response-in-human-adipocytes
#19
Verena Zoller, Jan-Bernd Funcke, Julian Roos, Meike Dahlhaus, Muad Abd El Hay, Karlheinz Holzmann, Ralf Marienfeld, Thomas Kietzmann, Klaus-Michael Debatin, Martin Wabitsch, Pamela Fischer-Posovszky
High serum concentrations of TNF-related apoptosis-inducing ligand (TRAIL), a member of the tumor necrosis factor protein family, are found in patients with increased BMI and serum lipid levels. In a model of murine obesity, both the expression of TRAIL and its receptor (TRAIL-R) is elevated in adipose tissue. Accordingly, TRAIL has been proposed as an important mediator of adipose tissue inflammation and obesity-associated diseases. The aim of this study was to investigate if TRAIL regulates inflammatory processes at the level of the adipocyte...
July 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28720297/comparison-of-tibial-anatomical-mechanical-axis-angle-between-predisposed-dogs-and-dogs-at-low-risk-for-cranial-cruciate-ligament-rupture
#20
L Guénégo, M Payot, P Charru, P Verwaerde
The purpose of this prospective, radiographic, descriptive study was to compare measurements of tibial anatomical-mechanical axis angle (AMA-angle), tibial plateau angle (TPA), relative tibial tuberosity width (rTTW) and Z-angle from mediolateral radiographs of the tibia between two canine breeds (72 dogs) not predisposed to cranial cruciate ligament rupture (CCLR) and those from a consecutive series of 185 large dogs and 17 West Highland white terriers (WHWT) diagnosed with unilateral, surgically confirmed CCLR...
July 2017: Veterinary Journal
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