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macrophage derived chemokine

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https://www.readbyqxmd.com/read/28734730/multifaceted-c-x-c-chemokine-receptor-4-inhibition-interferes-with-anti-vascular-endothelial-growth-factor-therapy-induced-glioma-dissemination
#1
Jean-Pierre Gagner, Yasmeen Sarfraz, Valerio Ortenzi, Fawaz M Alotaibi, Luis A Chiriboga, Awab T Tayyib, Garry J Douglas, Eric Chevalier, Barbara Romagnoli, Gérald Tuffin, Michel Schmitt, Guillaume Lemercier, Klaus Dembowsky, David Zagzag
Resistance to antiangiogenic therapy glioblastoma (GBM) patients may involve hypoxia-induced expression of stromal cell-derived factor (SDF)-1α receptor C-X-C chemokine receptor 4 (CXCR4) on invading tumor, macrophage/microglial cells (MGCs), and glioma stem cells (GSCs). We determined whether antagonizing CXCR4 with peptide epitope mimetic POL5551 disrupts anti-vascular endothelial growth factor therapy-induced glioma growth and dissemination. Mice bearing orthotopic CT-2A or GL261 gliomas received POL5551 and/or anti-vascular endothelial growth factor antibody B20-4...
July 20, 2017: American Journal of Pathology
https://www.readbyqxmd.com/read/28728999/histamine-h2-receptor-stimulation-up-regulates-th2-chemokine-ccl17-production-in-human-m2a-macrophages
#2
Susanne Mommert, Karl Gregor, Kristine Rossbach, Katrin Schaper, Torsten Witte, Ralf Gutzmer, Thomas Werfel
Stimulation of the histamine H2 receptor significantly increased CCL17 production in human monocyte derived M2a macrophages. These results may be helpful to identify novel therapeutical target structures in diseases driven at least in part by histamine.
July 17, 2017: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28728914/hydroxycinnamoyl-derivatives-and-secoiridoid-glycoside-derivatives-from-syringa-vulgaris-flowers-and-their-effects-on-the-pro-inflammatory-responses-of-human-neutrophils
#3
M K Dudek, B Michalak, M Woźniak, M E Czerwińska, A Filipek, S Granica, A K Kiss
Thirteen new compounds including caffeoyl-glucaric and p-coumaroyl-altraric acid derivatives, one monoterpenoid glucoside, four secoiridoid glycosides, and three hydroxycinnamoyl phenylpropanoid glycosides esterified with an oleoside 11-methyl ester along with fifteen known compounds were isolated from flowers of Syringa vulgaris L. (Oleaceae). Their structures were elucidated by high-resolution spectroscopic methods. The tested compounds were able to decrease the production of reactive oxygen species. Moreover, oleoechinacoside (13), demethylhydroxyoleonuezhenide (14), demethyloleonuezhenide (15), syringaoleoacteoside (25) and oleoacteoside (26) at the concentration of 50μM, moderately suppressed the LPS-stimulated release of pro-inflammatory chemokine IL-8 and TNF-α from human neutrophils...
July 17, 2017: Fitoterapia
https://www.readbyqxmd.com/read/28724396/pathogenic-roles-of-cxcl10-signaling-through-cxcr3-and-tlr4-in-macrophages-and-t-cells-relevance-for-arthritis
#4
Jong-Ho Lee, Bongjun Kim, Won Jong Jin, Hong-Hee Kim, Hyunil Ha, Zang Hee Lee
BACKGROUND: Rheumatoid arthritis (RA) is a chronic autoimmune disease characterized by uncontrolled joint inflammation and destruction of bone and cartilage. We previously reported that C-X-C motif chemokine 10 (CXCL10; also called IP-10) has important roles in joint inflammation and bone destruction in arthritis. However, the specific mechanisms by which CXCL10 regulates the recruitment of inflammatory cells and the production of osteoclastogenic cytokines in RA progression are not fully understood...
July 19, 2017: Arthritis Research & Therapy
https://www.readbyqxmd.com/read/28716663/time-course-of-plasma-inflammatory-mediators-in-a-rat-model-of-brain-death
#5
Majid Esmaeilzadeh, Mahmoud Sadeghi, Roland Galmbacher, Volker Daniel, Jürgen Knapp, Hans E Heissler, Joachim K Krauss, Arianeb Mehrabi
BACKGROUND: Brain death (BD) is a donor-associated risk factor that negatively affects transplantation outcome. The inflammation associated with BD appears to have a negative effect on organ quality. Complement activation, apoptosis, and pro-inflammatory cytokine and chemokine expression are significantly increased after BD. To better understand this process, we investigated plasma chemokine and cytokine levels for 8h after BD in a rodent model. METHODS: Thirteen healthy adult male Sprague Dawley rats were intubated and mechanically ventilated...
July 15, 2017: Transplant Immunology
https://www.readbyqxmd.com/read/28686859/the-accr-2-ual-of-m2-macrophages-provides-some-breathing-room
#6
Preethi Vijayaraj, Brigitte N Gomperts
Lung tissue can robustly regenerate functional alveolar units after injury, but the mechanisms are unknown. Lechner et al. (2017) in this issue of Cell Stem Cell demonstrate that lung regeneration is facilitated by bone-marrow-derived myeloid cells that are recruited to the lung through a CCL2-CCR2 chemokine axis and by IL-13 expressing innate lymphoid cells.
July 6, 2017: Cell Stem Cell
https://www.readbyqxmd.com/read/28679643/endogenous-heat-shock-protein-induction-with-or-without-radiofrequency-ablation-or-cryoablation-in-patients-with-stage-iv-melanoma
#7
Evidio Domingo-Musibay, James M Heun, Wendy K Nevala, Matthew Callstrom, Thomas Atwell, Evanthia Galanis, Lori A Erickson, Svetomir N Markovic
LESSONS LEARNED: Percutaneous thermal ablation combined with in situ granulocyte-macrophage colony-stimulating factor cytokine therapy was technically feasible and well tolerated.No significant clinical or immunologic responses were seen. BACKGROUND: Melanoma tumor-derived heat-shock proteins (HSPs) and HSP-peptide complexes can elicit protective antitumor responses. The granulocyte-macrophage colony-stimulating factor (GM-CSF) chemokine can also promote uptake and processing by professional antigen presenting cells (APCs)...
July 5, 2017: Oncologist
https://www.readbyqxmd.com/read/28678851/receptor-for-advanced-glycation-endproducts-rage-maintains-pulmonary-structure-and-regulates-the-response-to-cigarette-smoke
#8
Lisa Wolf, Christian Herr, Julia Niederstraßer, Christoph Beisswenger, Robert Bals
The receptor for advanced glycation endproducts (RAGE) is highly expressed in the lung but its physiological functions in this organ is still not completely understood. To determine the contribution of RAGE to physiological functions of the lung, we analyzed pulmonary mechanics and structure of wildtype and RAGE deficient (RAGE-/-) mice. RAGE deficiency spontaneously resulted in a loss of lung structure shown by an increased mean chord length, increased respiratory system compliance, decreased respiratory system elastance and increased concentrations of serum protein albumin in bronchoalveolar lavage fluids...
2017: PloS One
https://www.readbyqxmd.com/read/28668506/interleukin-33-signaling-contributes-to-renal-fibrosis-following-ischemia-reperfusion
#9
Hua Liang, Feng Xu, Xian-Jie Wen, Hong-Zhen Liu, Han-Bing Wang, Ji-Ying Zhong, Cheng-Xiang Yang, Bin Zhang
Acute kidney injury caused by ischemia-reperfusion injury (IRI) is a major risk factor for chronic kidney disease, which is characterized by renal interstitial fibrosis. However, the molecular mechanisms underlying renal fibrosis induced by IRI are not fully understood. Our results showed that interleukin (IL)-33 was induced markedly after IRI insult, and the kidneys of mice following IRI plus IL-33 treatment presented more severe renal fibrosis compared with mice treated with IRI alone. Therefore, we investigated whether inhibition of IL-33 protects against IRI-induced renal fibrosis...
June 28, 2017: European Journal of Pharmacology
https://www.readbyqxmd.com/read/28656247/macrophage-derived-foam-cells-impair-endothelial-barrier-function-by-inducing-endothelial-mesenchymal-transition-via-ccl-4
#10
Ying Yang, Nian-Sang Luo, Ru Ying, Yong Xie, Jia-Yuan Chen, Xiao-Qiao Wang, Zhen-Jie Gu, Jing-Ting Mai, Wen-Hao Liu, Mao-Xiong Wu, Zhi-Teng Chen, Yong-Biao Fang, Hai-Feng Zhang, Zhi-Yi Zuo, Jing-Feng Wang, Yang-Xin Chen
Recently, endothelial-mesenchymal transition (EndMT) has been demonstrated to play an important role in the development of atherosclerosis, the molecular mechanisms of which remain unclear. In the present study, scanning electron microscopy directly revealed a widened endothelial space and immunohistofluorescence demonstrated that EndMT was increased in human aorta atherosclerotic plaques. M1 macrophage-derived foam cell (M1-FC) supernatants, but not M2 macrophage-derived foam cell (M2-FC) supernatants, induced EndMT...
June 19, 2017: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/28655636/diesel-exhaust-particulate-associated-chemicals-attenuate-expression-of-cxcl10-in-human-primary-bronchial-epithelial-cells
#11
Kirsty Meldrum, Timothy W Gant, Martin O Leonard
Air pollution affects a large proportion of the population particularly in urban areas, with diesel particulates recognised as particular causes for concern in respiratory conditions such as asthma. In this study we examined the response of human primary airway epithelial cells to diesel particulate chemical extracts (DE) and characterised gene expression alterations using RNA-SEQ. Using the antagonist CH223191, DE induced CYP1A1 and attenuation of CXCL10 among other genes were observed to be aryl hydrocarbon receptor dependent...
June 24, 2017: Toxicology in Vitro: An International Journal Published in Association with BIBRA
https://www.readbyqxmd.com/read/28655090/-molecular-mechanisms-and-relationship-of-m2-polarized-macrophages-with-early-response-in-multiple-myeloma
#12
X Y Chen, R X Sun, W Y Zhang, T Liu, Y H Zheng, Y Wu
Objective: To investigate the relationship between M2-polarized macrophages and early response in multiple myeloma and its molecular mechanism. Methods: Two hundred and forty bone marrow biopsy tissue were collected and M2-polarized macrophages were stained by anti-CD163 monoclonal antibody. In vitro M2-polarized macrophages were derived from human peripheral blood mononuclear cell or THP-1 cells and identified by flow cytometry. Two myeloma cell lines RPMI 8226 and U266 were co-cultured with M2 macrophages using a transwell system...
June 14, 2017: Zhonghua Xue Ye Xue za Zhi, Zhonghua Xueyexue Zazhi
https://www.readbyqxmd.com/read/28650342/inflammatory-ly6chi-monocytes-and-their-conversion-to-m2-macrophages-drive-atherosclerosis-regression
#13
Karishma Rahman, Yuliya Vengrenyuk, Stephen A Ramsey, Noemi Rotllan Vila, Natasha M Girgis, Jianhua Liu, Viktoria Gusarova, Jesper Gromada, Ada Weinstock, Kathryn J Moore, P'ng Loke, Edward A Fisher
Atherosclerosis is a chronic inflammatory disease, and developing therapies to promote its regression is an important clinical goal. We previously established that atherosclerosis regression is characterized by an overall decrease in plaque macrophages and enrichment in markers of alternatively activated M2 macrophages. We have now investigated the origin and functional requirement for M2 macrophages in regression in normolipidemic mice that received transplants of atherosclerotic aortic segments. We compared plaque regression in WT normolipidemic recipients and those deficient in chemokine receptors necessary to recruit inflammatory Ly6Chi (Ccr2-/- or Cx3cr1-/-) or patrolling Ly6Clo (Ccr5-/-) monocytes...
June 26, 2017: Journal of Clinical Investigation
https://www.readbyqxmd.com/read/28650254/proteomics-to-predict-the-response-to-tumour-necrosis-factor-%C3%AE-inhibitors-in-rheumatoid-arthritis-using-a-supervised-cluster-analysis-based-protein-score
#14
Bvj Cuppen, Rde Fritsch-Stork, I Eekhout, W de Jager, A C Marijnissen, Jwj Bijlsma, M Custers, J M van Laar, Fpjg Lafeber, Pmj Welsing
OBJECTIVE: In rheumatoid arthritis (RA), it is of major importance to identify non-responders to tumour necrosis factor-α inhibitors (TNFi) before starting treatment, to prevent a delay in effective treatment. We developed a protein score for the response to TNFi treatment in RA and investigated its predictive value. METHOD: In RA patients eligible for biological treatment included in the BiOCURA registry, 53 inflammatory proteins were measured using xMAP® technology...
June 26, 2017: Scandinavian Journal of Rheumatology
https://www.readbyqxmd.com/read/28647568/hepatocyte-derived-macrophage-migration-inhibitory-factor-mediates-alcohol-induced-liver-injury-in-mice-and-patients
#15
Veronica Marin, Kyle Poulsen, Gemma Odena, Megan R McMullen, Jose Altamirano, Pau Sancho-Bru, Claudio Tiribelli, Juan Caballeria, Natalia Rosso, Ramon Bataller, Laura E Nagy
BACKGROUND & AIMS: Macrophage migration inhibitory factor (MIF) is a multi-potent cytokine that contributes to the inflammatory response to injury. MIF is expressed by multiple cell types; however, the cellular source and actions of MIF in alcoholic liver disease (ALD) are not well known. Here we tested the hypothesis that non-myeloid cells, specifically hepatocytes, are an important cellular source of MIF in ALD. METHODS: MIF expression was measured in HuH7 and differentiated THP-1 cells in response to ethanol...
June 21, 2017: Journal of Hepatology
https://www.readbyqxmd.com/read/28642703/different-regulation-of-interleukin-1-production-and-activity-in-monocytes-and-macrophages-innate-memory-as-an-endogenous-mechanism-of-il-1-inhibition
#16
Mariusz P Madej, Elfi Töpfer, Diana Boraschi, Paola Italiani
Production and activity of interleukin (IL)-1β are kept under strict control in our body, because of its powerful inflammation-promoting capacity. Control of IL-1β production and activity allows IL-1 to exert its defensive activities without causing extensive tissue damage. Monocytes are the major producers of IL-1β during inflammation, but they are also able to produce significant amounts of IL-1 inhibitors such as IL-1Ra and the soluble form of the decoy receptor IL-1R2, in an auto-regulatory feedback loop...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/28637505/human-lung-and-monocyte-derived-macrophages-differ-with-regard-to-the-effects-of-%C3%AE-2-adrenoceptor-agonists-on-cytokine-release
#17
Tatiana Victoni, Hélène Salvator, Charlotte Abrial, Marion Brollo, Luis Cristovão Sobrino Porto, Vincent Lagente, Emmanuel Naline, Stanislas Grassin-Delyle, Philippe Devillier
BACKGROUND: β2-adrenoceptor agonists have been shown to reduce the lipopolysaccharide (LPS)-induced cytokine release by human monocyte-derived macrophages (MDMs). We compare the expression of β2-adrenoceptors and the inhibitory effect of formoterol and salmeterol on the LPS-induced release of tumor necrosis factor (TNF)-α, interleukin (IL)-1β, IL-6 and a range of chemokines (CCL2, 3, 4, and IL-8) by human lung macrophages (LMs) and MDMs. METHODS: LMs were isolated from patients undergoing resection and MDMs were obtained from blood monocytes in the presence of GM-CSF...
June 21, 2017: Respiratory Research
https://www.readbyqxmd.com/read/28637178/the-at04a-vaccine-against-proprotein-convertase-subtilisin-kexin-type-9-reduces-total-cholesterol-vascular-inflammation-and-atherosclerosis-in-apoe-3leiden-cetp-mice
#18
Christine Landlinger, Marianne G Pouwer, Claudia Juno, José W A van der Hoorn, Elsbet J Pieterman, J Wouter Jukema, Guenther Staffler, Hans M G Princen, Gergana Galabova
Aims: Proprotein convertase subtilisin/kexin type 9 (PCSK9) has emerged as a promising therapeutic target for the treatment of hypercholesterolaemia and atherosclerosis. PCSK9 binds to the low density lipoprotein receptor and enhances its degradation, which leads to the reduced clearance of low density lipoprotein cholesterol (LDLc) and a higher risk of atherosclerosis. In this study, the AT04A anti-PCSK9 vaccine was evaluated for its therapeutic potential in ameliorating or even preventing coronary heart disease in the atherogenic APOE*3Leiden...
June 19, 2017: European Heart Journal
https://www.readbyqxmd.com/read/28634479/whole-blood-profiling-of-bacillus-calmette-gu%C3%A3-rin-induced-trained-innate-immunity-in-infants-identifies-epidermal-growth-factor-il-6-platelet-derived-growth-factor-ab-bb-and-natural-killer-cell-activation
#19
Steven G Smith, Johanneke Kleinnijenhuis, Mihai G Netea, Hazel M Dockrell
Vaccination of infants with bacillus Calmette-Guérin (BCG) activates both the innate and adaptive arms of the immune response. The antimycobacterial effects of these responses most likely account for the ability of BCG to protect against childhood forms of tuberculosis (TB). There is also evidence for a heterologous protective effect of BCG vaccination against TB-unrelated mortality in low birth weight infants. A possible mechanism of action of this effect, the induction of trained innate immunity, has been demonstrated when cells from BCG-vaccinated adults are restimulated in vitro with non-related microbial stimuli...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28634420/characterization-of-the-proinflammatory-profile-of-synovial-fluid-derived-exosomes-of-patients-with-osteoarthritis
#20
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
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