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https://www.readbyqxmd.com/read/28919995/mammary-tumor-derived-ccl2-enhances-pro-metastatic-systemic-inflammation-through-upregulation-of-il1%C3%AE-in-tumor-associated-macrophages
#1
Kelly Kersten, Seth B Coffelt, Marlous Hoogstraat, Niels J M Verstegen, Kim Vrijland, Metamia Ciampricotti, Chris W Doornebal, Cheei-Sing Hau, Max D Wellenstein, Camilla Salvagno, Parul Doshi, Esther H Lips, Lodewyk F A Wessels, Karin E de Visser
Patients with primary solid malignancies frequently exhibit signs of systemic inflammation. Notably, elevated levels of neutrophils and their associated soluble mediators are regularly observed in cancer patients, and correlate with reduced survival and increased metastasis formation. Recently, we demonstrated a mechanistic link between mammary tumor-induced IL17-producing γδ T cells, systemic expansion of immunosuppressive neutrophils and metastasis formation in a genetically engineered mouse model for invasive breast cancer...
2017: Oncoimmunology
https://www.readbyqxmd.com/read/28919455/is-there-a-role-for-il-17-in-the-pathogenesis-of-systemic-sclerosis
#2
REVIEW
Carlo Chizzolini, Aleksandra Maria Dufour, Nicolò Costantino Brembilla
In systemic sclerosis (SSc) immuno-inflammatory events are central to disease development. Amongst other mediators of inflammation, interleukin 17 (IL-17) and Th17 cells have been reported to be increased in the peripheral blood and target organs including involved skin in SSc. They participate and amplify inflammatory responses by inducing the production of cytokines such as IL-6, chemokines such as CCL2 and CXCL8 (IL-8), matrix metalloproteinases-1, -2, -9 and the expression of adhesion molecules in stromal cells including fibroblasts and endothelial cells...
September 14, 2017: Immunology Letters
https://www.readbyqxmd.com/read/28917434/quantitative-analysis-of-four-protein-biomarkers-an-automated-microfluidic-cartridge-based-method-and-its-comparison-to-colorimetric-elisa
#3
REVIEW
Mark Dysinger, Greg Marusov, Stephanie Fraser
Biomarker quantitation with ligand binding assays has matured greatly in recent years. This maturation has been partly in response to demands for more data points from fewer samples or less available sample volume. Multiplexing offers opportunities to acquire data for multiple analytes from single sample assay iterations, but has its own unique challenges and limitations. ProteinSimple has developed Simple Plex™, an automated immunoassay platform consisting of microfluidic cartridge-based assays run on the Ella instrument...
September 13, 2017: Journal of Immunological Methods
https://www.readbyqxmd.com/read/28911210/a20-an-essential-component-of-the-ubiquitin-editing-protein-complex-is-a-negative-regulator-of-inflammation-in-human-myometrium-and-foetal-membranes
#4
Martha Lappas
STUDY QUESTION: Does A20 regulate mediators involved in the terminal processes of human labour in primary myometrial and amnion cells? SUMMARY ANSWER: A20 is a nuclear factor-kappa B (NF-κB) responsive gene that acts as a negative regulator of NF-κB-induced expression of pro-labour mediators. WHAT IS KNOWN ALREADY: Inflammation is commonly implicated in spontaneous preterm birth and the processes involved in rupture of foetal membranes and uterine contractions...
September 1, 2017: Molecular Human Reproduction
https://www.readbyqxmd.com/read/28910354/differential-impact-of-the-dual-ccr2-ccr5-inhibitor-cenicriviroc-on-migration-of-monocyte-and-lymphocyte-subsets-in-acute-liver-injury
#5
Tobias Puengel, Oliver Krenkel, Marlene Kohlhepp, Eric Lefebvre, Tom Luedde, Christian Trautwein, Frank Tacke
A hallmark of acute hepatic injury is the recruitment of neutrophils, monocytes and lymphocytes, including natural killer (NK) or T cells, towards areas of inflammation. The recruitment of leukocytes from their reservoirs bone marrow or spleen into the liver is directed by chemokines such as CCL2 (for monocytes) and CCL5 (for lymphocytes). We herein elucidated the impact of chemokine receptor inhibition by the dual CCR2 and CCR5 inhibitor cenicriviroc (CVC) on the composition of myeloid and lymphoid immune cell populations in acute liver injury...
2017: PloS One
https://www.readbyqxmd.com/read/28906277/effect-of-cytomegalovirus-and-epstein-barr-virus-replication-on-intestinal-mucosal-gene-expression-and-microbiome-composition-of-hiv-infected-and-uninfected-individuals
#6
Sara Gianella, Antoine Chaillon, Ece A Mutlu, Phillip A Engen, Robin M Voigt, Ali Keshavarzian, John Losurdo, Prachi Chakradeo, Steven M Lada, Masato Nakazawa, Alan L Landay
BACKGROUND: HIV-infection is associated with dramatic changes in the intestinal mucosa. The impact of other viral pathogens is unclear. METHODS: One hundred and eight (108) biopsies from left and right colon (n = 79) and terminal ileum (n = 29) were collected from 19 HIV-infected and 22 HIV-uninfected participants. Levels of cytomegalovirus (CMV) and Epstein-Barr virus (EBV) DNA were measured by droplet digital PCR. Mucosal gene expression was measured via multiplex-assay...
September 24, 2017: AIDS
https://www.readbyqxmd.com/read/28906043/diluted-sodium-hypochlorite-bleach-in-dogs-antiseptic-efficacy-local-tolerability-and-in-vitro-effect-on-skin-barrier-function-and-inflammation
#7
Frane Banovic, Thierry Olivry, Wolfgang Bäumer, Judy Paps, Jessica Stahl, Ana Rogers, Megan Jacob
BACKGROUND: Diluted sodium hypochlorite represents an inexpensive and widely available topical antiseptic, but there are no tolerability and efficacy data in veterinary dermatology. OBJECTIVES: To determine the in vivo antibacterial effect and tolerability of topical diluted bleach application and to assess its in vitro effect on skin barrier lipids and anti-inflammatory properties on keratinocytes. METHODS: Topical hypochlorite at 0.05% and tap water were applied to both sides of the thorax of four healthy dogs...
September 14, 2017: Veterinary Dermatology
https://www.readbyqxmd.com/read/28895052/the-effects-of-periostin-in-a-rat-model-of-isoproterenol-mediated-cardiotoxicity
#8
Mahmut Sözmen, Alparslan K Devrim, Yonca B Kabak, Tuba Devrim, Mert Sudagidan
Periostin is an extracellular matrix protein from fasciclin family, and it plays an important role in the cell adhesion, migration, and growth of the organism. Periostin prevents apoptosis while stimulating cardiomyocytes. The present study was designed to investigate cardioprotective effects of the recombinant murine periostin peptide administration in a rat model of isoproterenol (ISO)-induced myocardial injury. The experiment was performed on 84 adult male Sprague Dawley rats in 4 groups (n = 21): control group (1), periostin-treated group (2), ISO-treated group (3), and ISO + periostin-treated group (4)...
September 11, 2017: Cardiovascular Toxicology
https://www.readbyqxmd.com/read/28892653/saliva-derived-commensal-and-pathogenic-biofilms-in-a-human-gingiva-model
#9
J K Buskermolen, M M Janus, S Roffel, B P Krom, S Gibbs
In vitro models that closely mimic human host-microbiome interactions can be a powerful screening tool for antimicrobials and will hold great potential for drug validation and discovery. The aim of this study was to develop an organotypic oral mucosa model that could be exposed to in vitro cultured commensal and pathogenic biofilms in a standardized and scalable manner. The oral mucosa model consisted of a tissue-engineered human gingiva equivalent containing a multilayered differentiated gingiva epithelium (keratinocytes) grown on a collagen hydrogel, containing gingiva fibroblasts, which represented the lamina propria...
September 1, 2017: Journal of Dental Research
https://www.readbyqxmd.com/read/28890952/oxidative-stress-a-potential-therapeutic-target-in-placental-malaria
#10
Demba Sarr, Caitlin A Cooper, Tara C Bracken, Omar Martinez-Uribe, Tamas Nagy, Julie M Moore
Placental malaria, characterized by sequestration of Plasmodium falciparum in the maternal placental blood space and associated inflammatory damage, contributes to poor birth outcomes and ~200,000 infant deaths annually. Specific mechanisms that contribute to placental damage and dysfunction during malaria are not completely understood. To investigate a potential role for oxidative stress, antioxidant genes and markers for oxidative damage were assessed by quantitative PCR and immunohistochemistry in Plasmodium chabaudi AS-infected pregnant mice...
June 1, 2017: Immunohorizons
https://www.readbyqxmd.com/read/28890695/acute-hypoxia-induced-an-imbalanced-m1-m2-activation-of-microglia-through-nf-%C3%AE%C2%BAb-signaling-in-alzheimer-s-disease-mice-and-wild-type-littermates
#11
Feng Zhang, Rujia Zhong, Song Li, Zhenfa Fu, Cheng Cheng, Huaibin Cai, Weidong Le
Alzheimer's disease (AD) is the most common neurodegenerative disease mainly caused by abnormal tau phosphorylation, amyloid β (Aβ) deposition and neuroinflammation. As an important environmental factor, hypoxia has been reported to aggravate AD via exacerbating Aβ and tau pathologies. However, the link between hypoxia and neuroinflammation, especially the changes of pro-inflammatory M1 or anti-inflammation M2 microglia phenotypes in AD, is still far from being clearly investigated. Here, we evaluated the activation of microglia in the brains of APP(swe)/PS1(dE9) transgenic (Tg) mice and their wild type (Wt) littermates, after a single episode of acute hypoxia (24 h) exposure...
2017: Frontiers in Aging Neuroscience
https://www.readbyqxmd.com/read/28888911/photobiomodulation-with-670%C3%A2-nm-light-ameliorates-m%C3%A3-ller-cell-mediated-activation-of-microglia-and-macrophages-in-retinal-degeneration
#12
Yen-Zhen Lu, Riccardo Natoli, Michele Madigan, Nilisha Fernando, Kartik Saxena, Riemke Aggio-Bruce, Haihan Jiao, Jan Provis, Krisztina Valter
Müller cells, the supporting cells of the retina, play a key role in responding to retinal stress by releasing chemokines, including CCL2, to recruit microglia and macrophages (MG/MΦ) into the damaged retina. Photobiomodulation (PBM) with 670 nm light has been shown to reduce inflammation in models of retinal degeneration. In this study, we aimed to investigate whether 670 nm light had an effect on Müller cell-initiated inflammation under retinal photo-oxidative damage (PD) in vivo and in vitro. Sprague-Dawley rats were pre-treated with 670 nm light (9J/cm(2)) once daily over 5 days prior to PD...
September 6, 2017: Experimental Eye Research
https://www.readbyqxmd.com/read/28886701/the-loss-of-function-disease-mutation-g301r-in-the-na-k-atpase-%C3%AE-2-isoform-decreases-lesion-volume-and-improves-functional-outcome-after-acute-spinal-cord-injury-in-mice
#13
Ditte Gry Ellman, Toke Jost Isaksen, Minna Christiansen Lund, Safinaz Dursun, Martin Wirenfeldt, Louise Helskov Jørgensen, Karin Lykke-Hartmann, Kate Lykke Lambertsen
BACKGROUND: The Na(+)/K(+)-ATPases are transmembrane ion pumps important for maintenance of ion gradients across the plasma membrane that serve to support multiple cellular functions, such as membrane potentials, regulation of cellular volume and pH, and co-transport of signaling transmitters in all animal cells. The α2Na(+)/K(+)-ATPase subunit isoform is predominantly expressed in astrocytes, which us the sharp Na(+)-gradient maintained by the sodium pump necessary for astroglial metabolism...
September 8, 2017: BMC Neuroscience
https://www.readbyqxmd.com/read/28886135/differential-regulation-of-innate-immune-cytokine-production-through-pharmacological-activation-of-nuclear-factor-erythroid-2-related-factor-2-nrf2-in-burn-patient-immune-cells-and-monocytes
#14
Timothy K Eitas, Wesley Stepp, Lucas Sjeklocha, Clayton Long, Caitlin Riley, James Callahan, Yolanda Sanchez, Peter Gough, Laquanda Knowlin, David van Duin, Shiara Ortiz-Pujols, Samuel Jones, Robert Maile, Zhi Hong, Scott Berger, Bruce Cairns
Burn patients suffer from immunological dysfunction for which there are currently no successful interventions. Similar to previous observations, we find that burn shock patients (≥15% Total Burn Surface Area (TBSA) injury) have elevated levels of the innate immune cytokines Interleukin-6 (IL-6) and Monocyte Chemoattractant Protein-1 (MCP-1)/CC-motif Chemokine Ligand 2(CCL2) early after hospital admission (0-48 Hours Post-hospital Admission (HPA). Functional immune assays with patient Peripheral Blood Mononuclear Cells (PBMCs) revealed that burn shock patients (≥15% TBSA) produced elevated levels of MCP-1/CCL2 after innate immune stimulation ex vivo relative to mild burn patients...
2017: PloS One
https://www.readbyqxmd.com/read/28884220/inflammatory-response-of-disc-cells-against-propionibacterium-acnes-depends-on-the-presence-of-lumbar-modic-changes
#15
Stefan Dudli, S Miller, S Demir-Deviren, J C Lotz
PURPOSE: Intervertebral disc with Propionibacterium acnes (P. acnes) is suggested to be an etiology of Modic type I changes in the adjacent bone marrow. However it is unknown if disc cells can respond to P. acnes and if bone marrow cells respond to bacterial and disc metabolites draining from infected discs. METHODS: Human disc cells (n = 10) were co-cultured with 10- and 100-fold excess of P. acnes over disc cells for 3 h and 24 h. Lipopolysaccharide was used as positive control...
September 7, 2017: European Spine Journal
https://www.readbyqxmd.com/read/28883822/the-role-of-the-chemokine-system-in-tissue-response-to-prosthetic-by-products-leading-to-periprosthetic-osteolysis-and-aseptic-loosening
#16
REVIEW
Tereza Dyskova, Jiri Gallo, Eva Kriegova
Millions of total joint replacements are performed annually worldwide, and the number is increasing every year. The overall proportion of patients achieving a successful outcome is about 80-90% in a 10-20-years time horizon postoperatively, periprosthetic osteolysis (PPOL) and aseptic loosening (AL) being the most frequent reasons for knee and hip implant failure and reoperations. The chemokine system (chemokine receptors and chemokines) is crucially involved in the inflammatory and osteolytic processes leading to PPOL/AL...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28883089/ccl2-and-t-cells-in-pulmonary-fibrosis-an-old-player-gets-a-new-role
#17
EDITORIAL
Awo D Osafo-Addo, Erica L Herzog
No abstract text is available yet for this article.
September 7, 2017: Thorax
https://www.readbyqxmd.com/read/28879051/targeting-danger-molecules-in-tendinopathy-the-hmgb1-tlr4-axis
#18
Moeed Akbar, Derek S Gilchrist, Susan M Kitson, Briana Nelis, Lindsay A N Crowe, Emma Garcia-Melchor, James H Reilly, Shauna C Kerr, George A C Murrell, Iain B McInnes, Neal L Millar
OBJECTIVES: To seek evidence of the danger molecule, high-mobility group protein B1 (HMGB1) expression in human tendinopathy and thereafter, to explore mechanisms where HMGB1 may regulate inflammatory mediators and matrix regulation in human tendinopathy. METHODS: Torn supraspinatus tendon (established pathology) and matched intact subscapularis tendon (representing 'early pathology') biopsies were collected from patients undergoing arthroscopic shoulder surgery...
2017: RMD Open
https://www.readbyqxmd.com/read/28878153/high-throughput-study-of-the-effects-of-celastrol-on-activated-fibroblast-like-synoviocytes-from-patients-with-rheumatoid-arthritis
#19
Zhengyu Fang, Dongyi He, Bo Yu, Feng Liu, Jianping Zuo, Yuxia Li, Qi Lin, Xiaodong Zhou, Qingwen Wang
Celastrol, a natural triterpene, exhibits potential anti-inflammatory activity in a variety of inflammatory diseases. The present study aimed to investigate its biological effect on activated fibroblast-like synoviocytes (FLSs) from patients with rheumatoid arthritis (RA). The primary FLSs of the synovial tissues were obtained from synovial biopsies of patients with RA. The normal human FLS line (HFLS) was used as a control. After the RA-FLSs and HFLSs were treated with or without celastrol, various approaches, including the WST-1 assay, transwell assay, real-time PCR and ELISA analysis, were performed to estimate proliferation, invasion and expression of pro-inflammatory cytokines of the RA-FLSs...
September 6, 2017: Genes
https://www.readbyqxmd.com/read/28878079/minocycline-has-anti-inflammatory-effects-and-reduces-cytotoxicity-in-an-ex-vivo-spinal-cord-slice-culture-model-of-west-nile-virus-infection
#20
Eamon D Quick, Scott Seitz, Penny Clarke, Kenneth L Tyler
West Nile virus (WNV) is a neurotropic flavivirus that can cause significant neurological disease. Mouse models of WNV infection demonstrate that a pro-inflammatory environment is induced within the central nervous system (CNS) after WNV infection leading to entry of activated peripheral immune cells. We utilized ex vivo spinal cord slice cultures (SCSC) to demonstrate that anti-inflammatory mechanisms may also play a role in WNV-induced pathology and/or recovery. Microglia are a type of macrophage that function as resident CNS immune cells...
September 6, 2017: Journal of Virology
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