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CX3CL1

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https://www.readbyqxmd.com/read/29148410/th17-gene-expression-in-psoriatic-arthritis-synovial-fluid-and-peripheral-blood-compared-to-osteoarthritis-and-cutaneous-psoriasis
#1
Fatima Abji, Remy A Pollock, Kun Liang, Vinod Chandran, Dafna D Gladman
OBJECTIVES: The IL-23/IL-17 axis is central to the pathogenesis of psoriatic arthritis (PsA). We aimed to identify Th17 signalling genes that are dysregulated in synovial fluid of PsA compared to osteoarthritis (OA) patients and to determine if differences in peripheral blood can distinguish PsA from psoriasis patients and controls. METHODS: Synovial fluid cells (SFCs) from 14 PsA and 9 OA patients were obtained and stored in TRIzol reagent. RNA was isolated by phenol-chloroform extraction and purified with RNeasy miniprep kits...
November 9, 2017: Clinical and Experimental Rheumatology
https://www.readbyqxmd.com/read/29128220/identification-of-potential-embryokines-in-the-bovine-reproductive-tract
#2
P Tríbulo, L G B Siqueira, L J Oliveira, T Scheffler, P J Hansen
Knowledge of the molecules used by the maternal reproductive tract to regulate development of the preimplantation embryo is largely incomplete. The goal of the present experiment was to identify candidates for this function. The approach was to assess expression patterns in the endometrium and oviduct of 93 genes encoding for hormones, growth factors, chemokines, cytokines, and WNT-related molecules. Results show that all of the genes were expressed in the reproductive tract. Expression in oviduct was affected by day of the estrous cycle for 21 genes with 11 genes having highest expression at estrus (CCL21, CTGF, CXCL10, CXCL16, DKK3, FGF10, IL18, IL33, IL34, PGF, and SFRP2), one gene at d 3 (WNT4), 8 at d 5 (BMP7, HGF, IL6, SFRP1, TGFB1, WIF1, WNT2, and WNT5A), and one at d 7 (IK)...
November 8, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/29034104/fibroblasts-the-unknown-sentinels-eliciting-immune-responses-against-microorganisms
#3
REVIEW
Luis Antonio Bautista-Hernández, José Luis Gómez-Olivares, Beatriz Buentello-Volante, Victor Manuel Bautista-de Lucio
Fibroblasts are present in all tissues but predominantly in connective tissues. Some of their functions include contractility, locomotion, collagen and elastin fiber production, and the regulation and degradation of the extracellular matrix. Also, fibroblasts act as sentinels to produce inflammatory mediators in response to several microorganisms. There is evidence that fibroblasts can synthesize toll-like receptors (TLRs), antimicrobial peptides, proinflammatory cytokines, chemokines, and growth factors, which are important molecules involved in innate immune response against microorganisms...
September 2017: European Journal of Microbiology & Immunology
https://www.readbyqxmd.com/read/29022831/nuclear-magnetic-resonance-assisted-metabolic-analysis-of-plasma-for-mild-gestational-diabetes-mellitus-patients
#4
Bai Jin, Liping Liu, Shuxuan Zhang, Xiaohui Cao, Yuhong Xu, Junsong Wang, Lizhou Sun
AIMS: This study aimed at detecting the difference of metabolic profile in mild gestational diabetes mellitus (GDM) patients, and at identifying the correlation between the disturbed metabolites and insulin resistance pathway induced by the inflammation factors secreted by the placenta and adipocytes. MATERIALS AND METHODS: Blood samples were collected from 36 pregnant women diagnosed with mild GDM and 36 normal glucose-tolerant (NGT) pregnant women. Metabolic profiles were acquired by using proton nuclear magnetic resonance ((1)H-NMR) spectroscopy, and the data were analyzed by multivariate statistical data analysis...
November 2017: Metabolic Syndrome and related Disorders
https://www.readbyqxmd.com/read/29017970/absence-of-microglial-cx3cr1-impairs-the-synaptic-integration-of-adult-born-hippocampal-granule-neurons
#5
M Bolós, J R Perea, J Terreros-Roncal, N Pallas-Bazarra, J Jurado-Arjona, J Ávila, M Llorens-Martín
Microglia are immune cells that play a crucial role in maintaining brain homeostasis. Among the mechanisms of communication between microglia and neurons, the CX3CL1/CX3CR1 axis exerts a central modulatory role. Animals lacking CX3CR1 microglial receptor (CX3CR1-/- mice) exhibit marked alterations not only in microglia but also in neurons located in various regions of the brain. Here we show that microglial depletion of CX3CR1 leads to the deficient synaptic integration of adult-born granule neurons in the dentate gyrus (DG), both at the afferent and efferent level...
October 7, 2017: Brain, Behavior, and Immunity
https://www.readbyqxmd.com/read/28978662/fractalkine-induces-angiogenic-potential-in-cx3cr1-expressing-monocytes
#6
Youngrok Park, Joon Lee, Jae-Yong Kwak, Kyoungmi Noh, Eunjung Yim, Hyun-Kyung Kim, Young June Kim, Hal E Broxmeyer, Jeong-A Kim
We report the unique role of CX3CL1 (or fractalkine) on CD11b(+) myelomonocytic cells expressing CX3CR1, the only known receptor for CX3CL1, in promoting blood perfusion recovery. In a mouse ischemic hind-limb model, CD11b(+)CX3CR1(+) cells migrated to ischemic femoral muscles through CX3CL1-mediated chemotaxis. CD11b(+)CX3CR1(+) macrophages isolated from ischemic tissues [tissue (T)-CD11b(+)CX3CR1(+)] of muscle exert a proangiogenic effect through platelet factor-4 (CXCL4; PF-4) production. PF-4 does not promote angiogenesis by itself but, instead, increases VEGF-mediated angiogenesis...
October 4, 2017: Journal of Leukocyte Biology
https://www.readbyqxmd.com/read/28977936/the-regulation-of-hydroxysteroid-17%C3%AE-dehydrogenase-type-1-and-2-gene-expression-in-breast-cancer-cell-lines-by-estradiol-dihydrotestosterone-micrornas-and-genes-related-to-breast-cancer
#7
Erik Hilborn, Olle Stål, Andrey Alexeyenko, Agneta Jansson
AIM: To investigate the influence of estrogen, androgen, microRNAs, and genes implicated in breast cancer on the expression of HSD17B1 and HSD17B2. MATERIALS: Breast cancer cell lines ZR-75-1, MCF7, T47D, SK-BR-3, and the immortalized epithelial cell line MCF10A were used. Cells were treated either with estradiol or dihydrotestosterone for 6, 24, 48 hours, or 7 days or treated with miRNAs or siRNAs predicted to influence HSD17B expression Results and discussion...
September 22, 2017: Oncotarget
https://www.readbyqxmd.com/read/28974887/circulating-inflammatory-factors-associated-with-worse-long-term-prognosis-in-colorectal-cancer
#8
Renate S Olsen, Johnny Nijm, Roland E Andersson, Jan Dimberg, Dick Wågsäter
AIM: To investigate association of circulating inflammatory factors at the time of colorectal cancer (CRC) surgery with survival. METHODS: Plasma levels from 174 CRC patients (69 females and 105 men), with median age 70 years (range 29-90), localized in the colon (n = 105) or rectum (n = 69), with stage I (n = 24), stage II (n = 54), stage III (n = 67) and stage IV (n = 29) were measured using commercially available Bio-Plex Pro™ Human Chemokine Panel 40-Plex, including 40 different chemokines, cytokines and interleukins...
September 14, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/28973330/prehematopoietic-stem-cell-transplantation-tear-cytokines-as-potential-susceptibility-biomarkers-for-ocular-chronic-graft-versus-host-disease
#9
Lidia Cocho, Itziar Fernández, Margarita Calonge, Maite Sainz de la Maza, Montserrat Rovira, Michael E Stern, Carmen Garcia-Vazquez, Amalia Enríquez-de-Salamanca
Purpose: To determine if cytokine tear levels before hematopoietic stem cell transplantation (HSCT) can help anticipate the occurrence of ocular chronic graft-versus-host disease (cGVHD). Methods: In this pilot study, 25 patients undergoing HSCT were followed prospectively for ≤43 months. After ocular examinations, tears were collected before HSCT. Levels of 19 cytokines (epidermal growth factor [EGF], eotaxin 1/CCL11, fractalkine/CX3CL1, IL-1Ra, IL-1β, IL-2, IL-4, IL-5, IL-6, IL-8/CXCL8, IL-10, IL-12p70, IL-13, IL-17A, IP-10/CXCL10, IFN-γ, VEGF, TNF-α, and RANTES/CCL5) were measured by multiplex bead assay...
September 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/28969686/s100a8-a9-increases-the-mobilization-of-pro-inflammatory-ly6c-high-monocytes-to-the-synovium-during-experimental-osteoarthritis
#10
Niels A J Cremers, Martijn H J van den Bosch, Stephanie van Dalen, Irene Di Ceglie, Giuliana Ascone, Fons van de Loo, Marije Koenders, Peter van der Kraan, Annet Sloetjes, Thomas Vogl, Johannes Roth, Edwin J W Geven, Arjen B Blom, Peter L E M van Lent
BACKGROUND: Monocytes are dominant cells present within the inflamed synovium during osteoarthritis (OA). In mice, two functionally distinct monocyte subsets are described: pro-inflammatory Ly6C(high) and patrolling Ly6C(low) monocytes. Alarmins S100A8/A9 locally released by the synovium during inflammatory OA for prolonged periods may be dominant proteins involved in stimulating recruitment of Ly6C(high) monocytes from the circulation to the joint. Our objective was to investigate the role of S100A8/A9 in the mobilization of Ly6C(high) and Ly6C(low) monocytic populations to the inflamed joint in collagenase-induced OA (CiOA)...
September 29, 2017: Arthritis Research & Therapy
https://www.readbyqxmd.com/read/28955220/alterations-in-the-interplay-between-neurons-astrocytes-and-microglia-in-the-rat-dentate-gyrus-in-experimental-models-of-neurodegeneration
#11
Daniele Lana, Filippo Ugolini, Daniele Nosi, Gary L Wenk, Maria G Giovannini
The hippocampus is negatively affected by aging and neurodegenerative diseases leading to impaired learning and memory abilities. A diverse series of progressive modifications in the intercellular communication among neurons, astrocytes and microglia occur in the hippocampus during aging or inflammation. A detailed understanding of the neurobiological modifications that contribute to hippocampal dysfunction may reveal new targets for therapeutic intervention. The current study focussed on the interplay between neurons and astroglia in the Granule Layer (GL) and the Polymorphic Layer (PL) of the Dentate Gyrus (DG) of adult, aged and LPS-treated rats...
2017: Frontiers in Aging Neuroscience
https://www.readbyqxmd.com/read/28943292/enhanced-fear-and-altered-neuronal-activation-in-forebrain-limbic-regions-of-cx3cr1-deficient-mice
#12
Inga Schubert, Rebecca Ahlbrand, Andrew Winter, Lauren Vollmer, Ian Lewkowich, Renu Sah
Mounting evidence supports immune dysfunction in psychiatric conditions such as post-traumatic stress disorder (PTSD). The association of immunomodulatory mechanisms with PTSD-relevant behavior and physiology is not well understood. Communication between neurons and microglia, resident immune cells of the central nervous system, is crucial for optimal regulation of behavior and physiology. In this regard, the fractalkine CX3CL1, secreted from neurons and its target, the microglial CX3CR1 receptor represent a primary neuron-microglia inter-regulatory system important for synaptic plasticity and function...
September 21, 2017: Brain, Behavior, and Immunity
https://www.readbyqxmd.com/read/28934294/immunopathology-of-childhood-celiac-disease-key-role-of-intestinal-epithelial-cells
#13
Grzegorz Pietz, Rituparna De, Maria Hedberg, Veronika Sjöberg, Olof Sandström, Olle Hernell, Sten Hammarström, Marie-Louise Hammarström
BACKGROUND & AIMS: Celiac disease is a chronic inflammatory disease of the small intestine mucosa due to permanent intolerance to dietary gluten. The aim was to elucidate the role of small intestinal epithelial cells in the immunopathology of celiac disease in particular the influence of celiac disease-associated bacteria. METHODS: Duodenal biopsies were collected from children with active celiac disease, treated celiac disease, and clinical controls. Intestinal epithelial cells were purified and analyzed for gene expression changes at the mRNA and protein levels...
2017: PloS One
https://www.readbyqxmd.com/read/28904873/a-calpain-inhibitor-protects-against-fractalkine-production-in-lipopolysaccharide-treated-endothelial-cells
#14
Jaewoong Jang, Yoosik Yoon, Dong-Jin Oh
BACKGROUND: Fractalkine (CX3CL1) is a chemokine with a unique CX3C motif and is produced by endothelial cells stimulated with lipopolysaccharide (LPS), tumor necrosis factor (TNF)-α, interleukin (IL)-1, and interferon-γ. There have been several reports that the caspase/calpain system is activated in endotoxemia, which leads to cellular apoptosis and acute inflammatory processes. We aimed to determine the role of the caspase/calpain system in cell viability and regulation of fractalkine production in LPS-treated endothelial cells...
September 2017: Kidney Research and Clinical Practice
https://www.readbyqxmd.com/read/28903329/fractalkine-cx3cl1-induced-intercellular-adhesion-molecule-1-dependent-tumor-metastasis-through-the-cx3cr1-pi3k-akt-nf-%C3%AE%C2%BAb-pathway-in-human-osteosarcoma
#15
Ju-Fang Liu, Ya-Ting Tsao, Chun-Han Hou
Osteosarcoma is the most common primary bone tumor in children and teens. The exact molecular mechanism underlying osteosarcoma progression still remains unclear. The CX3CL1/fractalkine has been implicated in various tumors but not in osteosarcoma. This study is the first to show that fractalkine promotes osteosarcoma metastasis by promoting cell migration. Fractalkine expression was higher in osteosarcoma cell lines than in normal osteoblasts. Fractalkine induced cell migration by upregulating intercellular adhesion molecule-1 (ICAM-1) expression via CX3CR1/PI3K/Akt/NF-κB pathway in human osteosarcoma cells...
August 15, 2017: Oncotarget
https://www.readbyqxmd.com/read/28881821/radial-artery-intima-media-thickness-regresses-after-secondary-prevention-interventions-in-patients-post-acute-coronary-syndrome-and-is-associated-with-cardiac-and-kidney-biomarkers
#16
Damilola D Adingupu, Helena U Westergren, Santosh Dahgam, Ann-Cathrine Jönsson-Rylander, Juuso Blomster, Per Albertsson, Elmir Omerovic, Sara Svedlund, Li-Ming Gan
BACKGROUND: Radial artery intima-media thickness (rIMT) measured by ultra-high-resolution ultrasound is associated with increased cardiovascular risk and predicts outcomes. We performed non-invasive high-resolution ultrasound of the radial artery to investigate vascular changes in subjects presenting with acute coronary syndrome (ACS) and who had undergone percutaneous coronary intervention (PCI). PURPOSE: In the present work, we aimed to follow rIMT change over time post-acute coronary syndrome as a tool to monitor potential response to intensified medical therapy...
August 8, 2017: Oncotarget
https://www.readbyqxmd.com/read/28878128/respiratory-syncytial-virus-infection-of-newborn-cx3cr1-deficent-mice-induces-a-pathogenic-pulmonary-innate-immune-response
#17
Sudipta Das, Mahesh Raundhal, Jie Chen, Timothy B Oriss, Rachael Huff, John V Williams, Anuradha Ray, Prabir Ray
Respiratory syncytial virus (RSV) infects almost all infants by 2 years of age, and severe bronchiolitis resulting from RSV infection is the primary cause of hospitalization in the first year of life. Among infants hospitalized due to RSV-induced bronchiolitis, those with a specific mutation in the chemokine receptor CX3CR1, which severely compromises binding of its ligand CX3CL1, were at a higher risk for more severe viral bronchiolitis than those without the mutation. Here, we show that RSV infection of newborn mice deficient in CX3CR1 leads to significantly greater neutrophilic inflammation in the lungs, accompanied by an increase in mucus production compared with that induced in WT mice...
September 7, 2017: JCI Insight
https://www.readbyqxmd.com/read/28867487/arp2-3-complex-is-required-for-macrophage-integrin-functions-but-is-dispensable-for-fcr-phagocytosis-and-in%C3%A2-vivo-motility
#18
Jeremy D Rotty, Hailey E Brighton, Stephanie L Craig, Sreeja B Asokan, Ning Cheng, Jenny P Ting, James E Bear
The Arp2/3 complex nucleates branched actin, forming networks involved in lamellipodial protrusion, phagocytosis, and cell adhesion. We derived primary bone marrow macrophages lacking Arp2/3 complex (Arpc2(-/-)) and directly tested its role in macrophage functions. Despite protrusion and actin assembly defects, Arpc2(-/-) macrophages competently phagocytose via FcR and chemotax toward CSF and CX3CL1. However, CR3 phagocytosis and fibronectin haptotaxis, both integrin-dependent processes, are disrupted. Integrin-responsive actin assembly and αM/β2 integrin localization are compromised in Arpc2(-/-) cells...
September 11, 2017: Developmental Cell
https://www.readbyqxmd.com/read/28859129/rhinovirus-induction-of-fractalkine-cx3cl1-in-airway-and-peripheral-blood-mononuclear-cells-in-asthma
#19
Nadine Upton, David J Jackson, Alexandra A Nikonova, Suzie Hingley-Wilson, Musa Khaitov, Ajerico Del Rosario, Stephanie Traub, Maria-Belen Trujillo-Torralbo, Max Habibi, Sarah L Elkin, Onn M Kon, Michael R Edwards, Patrick Mallia, Joseph Footitt, Jonathan Macintyre, Luminita A Stanciu, Sebastian L Johnston, Annemarie Sykes
Rhinovirus infection is associated with the majority of asthma exacerbations. The role of fractalkine in anti-viral (type 1) and pathogenic (type 2) responses to rhinovirus infection in allergic asthma is unknown. To determine whether (1) fractalkine is produced in airway cells and in peripheral blood leucocytes, (2) rhinovirus infection increases production of fractalkine and (3) levels of fractalkine differ in asthmatic compared to non-asthmatic subjects. Fractalkine protein and mRNA levels were measured in bronchoalveolar lavage (BAL) cells and peripheral blood mononuclear cells (PBMCs) from non-asthmatic controls (n = 15) and mild allergic asthmatic (n = 15) subjects...
2017: PloS One
https://www.readbyqxmd.com/read/28850583/sex-based-differences-in-myocardial-gene-expression-in-recently-deceased-organ-donors-with-no-prior-cardiovascular-disease
#20
Kolsoum InanlooRahatloo, Grace Liang, Davis Vo, Antje Ebert, Ivy Nguyen, Patricia K Nguyen
Sex differences in the development of the normal heart and the prevalence of cardiomyopathies have been reported. The molecular basis of these differences remains unclear. Sex differences in the human heart might be related to patterns of gene expression. Recent studies have shown that sex specific differences in gene expression in tissues including the brain, kidney, skeletal muscle, and liver. Similar data is limited for the heart. Herein we address this issue by analyzing donor and post-mortem adult human heart samples originating from 46 control individuals to study whole-genome gene expression in the human left ventricle...
2017: PloS One
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