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CX3CL1

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https://www.readbyqxmd.com/read/28641299/monocyte-subsets-are-differentially-lost-from-the-circulation-during-acute-inflammation-induced-by-human-experimental-endotoxemia
#1
Tamar Tak, Roger van Groenendael, Peter Pickkers, Leo Koenderman
Three human monocyte subsets are recognized with different functions in the immune system: CD14++/CD16- classical monocytes (CM), CD14++/CD16+ intermediate monocytes (IM) and CD14+/CD16++ non-classical monocytes (NCM). Increased IM and NCM percentages have been reported under inflammatory conditions, yet little is known about monocyte subsets at the onset of inflammation. The human endotoxemia model is uniquely capable of studying the first phases of acute inflammation induced by intravenous injection of 2 ng/kg bodyweight lipopolysaccharide (LPS) into healthy volunteers...
June 23, 2017: Journal of Innate Immunity
https://www.readbyqxmd.com/read/28624392/role-of-fractalkine-cx3cr1-signaling-pathway-in-the-recovery-of-neurological-function-after-early-ischemic-stroke-in-a-rat-model
#2
Yan-Zhi Liu, Chun Wang, Qian Wang, Yong-Zhong Lin, Yu-Song Ge, Dong-Mei Li, Geng-Sheng Mao
This study aims to explore the role of fractalkine/CX3C chemokine receptor 1 (CX3CR1) signaling pathway in the recovery of neurological functioning after an early ischemic stroke in rats. After establishment of permanent middle cerebral artery occlusion (pMCAO) models, 50 rats were divided into blank, sham, model, positive control and CX3CR1 inhibitor groups. Neurological impairment, walking and grip abilities, and cortical and hippocampal infarctions were evaluated by Zea Longa scoring criterion, beam-walking assay and grip strength test, and diffusion-weighted magnetic resonance imaging...
June 14, 2017: Life Sciences
https://www.readbyqxmd.com/read/28619710/heme-oxygenase-1-production-by-intestinal-cx3cr1-macrophages-helps-to-resolve-inflammation-and-prevents-carcinogenesis
#3
Giulia Marelli, Marco Erreni, Achille Anselmo, Valentina Taverniti, Simone Guglielmetti, Alberto Mantovani, Paola Allavena
CX3CR1(+) macrophages in the intestinal lamina propria contribute to gut homeostasis through the immunomodulatory interleukin IL-10, but there is little knowledge on how these cells or the CX3CR1 receptor may affect colorectal carcinogenesis. In this study, we show that CX3CR1-deficient mice fail to resolve gut inflammation despite high production of IL-10 and have increased colitis and adenomatous polyps in chemical and genetic models of colon carcinogenesis. Mechanistically, CX3CL1-mediated engagement of the CX3CR1 receptor induced upregulation of hemoxygenase-1 (HMOX-1), an antioxidant and anti-inflammatory enzyme...
June 15, 2017: Cancer Research
https://www.readbyqxmd.com/read/28612319/involvement-of-nf-%C3%AE%C2%BAb-and-the-cx3cr1-signaling-network-in-mechanical-allodynia-induced-by-tetanic-sciatic-stimulation
#4
Zhe-Chen Wang, Li-Hong Li, Chao Bian, Liu Yang, Ning Lv, Yu-Qiu Zhang
Tetanic stimulation of the sciatic nerve (TSS) triggers long-term potentiation in the dorsal horn of the spinal cord and long-lasting pain hypersensitivity. CX3CL1-CX3CR1 signaling is an important pathway in neuronal-microglial activation. Nuclear factor κB (NF-κB) is a key signal transduction molecule that regulates neuroinflammation and neuropathic pain. Here, we set out to determine whether and how NF-κB and CX3CR1 are involved in the mechanism underlying the pathological changes induced by TSS. After unilateral TSS, significant bilateral mechanical allodynia was induced, as assessed by the von Frey test...
June 13, 2017: Neuroscience Bulletin
https://www.readbyqxmd.com/read/28612258/downregulated-glia-interplay-and-increased-mirna-155-as-promising-markers-to-track-als-at-an%C3%A2-early-stage
#5
Carolina Cunha, Catarina Santos, Cátia Gomes, Adelaide Fernandes, Alexandra Marçal Correia, Ana Maria Sebastião, Ana Rita Vaz, Dora Brites
Amyotrophic lateral sclerosis (ALS) is a fatal neurodegenerative disease of unknown cause. Absence of specific targets and biomarkers compromise the development of new therapeutic strategies and of innovative tools to stratify patients and assess their responses to treatment. Here, we investigate changes in neuroprotective-neuroinflammatory actions in the spinal cord of SOD1 (G93A) mice, at presymptomatic and symptomatic stages to identify stage-specific biomarkers and potential targets. Results showed that in the presymptomatic stage, there are alterations in both astrocytes and microglia, which comprise decreased expression of GFAP and S100B and upregulation of GLT-1, as well as reduced expression of CD11b, M2-phenotype markers, and a set of inflammatory mediators...
June 13, 2017: Molecular Neurobiology
https://www.readbyqxmd.com/read/28600292/adam10-interacting-tetraspanins-tspan5-and-tspan17-regulate-ve-cadherin-expression-and-promote-t-lymphocyte-transmigration
#6
Jasmeet S Reyat, Myriam Chimen, Peter J Noy, Justyna Szyroka, G Ed Rainger, Michael G Tomlinson
The recruitment of blood leukocytes across the endothelium to sites of tissue infection is central to inflammation, but also promotes chronic inflammatory diseases. A disintegrin and metalloproteinase 10 (ADAM10) is a ubiquitous transmembrane molecular scissor that is implicated in leukocyte transmigration by proteolytically cleaving its endothelial substrates. These include VE-cadherin, a homotypic adhesion molecule that regulates endothelial barrier function, and transmembrane chemokines CX3CL1 and CXCL16, which have receptors on leukocytes...
June 9, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/28596556/indoxyl-sulfate-is-mediated-immune-dysfunction-provokes-endothelial-damage-in-patients-with-end-stage-renal-disease-esrd
#7
Hee Young Kim, Tae-Hyun Yoo, Yuri Hwang, Ga Hye Lee, Bonah Kim, Jiyeon Jang, Hee Tae Yu, Min Chang Kim, Joo-Youn Cho, Chan Joo Lee, Hyeon Chang Kim, Sungha Park, Won-Woo Lee
Progressive renal failure causes uremia-related immune dysfunction, which features a chronic inflammatory milieu. Given the central role of end-stage renal disease (ESRD)-related immune dysfunction in the pathogenesis of cardiovascular diseases (CVDs), much attention has been focused on how uremic toxins affect cellular immunity and the mechanisms underlying pathogenesis of atherosclerosis in ESRD patients. Here, we investigated the characteristics of monocytes and CD4(+) T cells in ESRD patients and the immune responses induced by indoxyl sulfate (IS), a key uremic toxin, in order to explore the pathogenic effects of these cells on vascular endothelial cells...
June 8, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28569153/aberrant-monocyte-responses-predict-and-characterize-dengue-virus-infection-in-individuals-with-severe-disease
#8
Yean K Yong, Hong Y Tan, Soe Hui Jen, Esaki M Shankar, Santha K Natkunam, Jameela Sathar, Rishya Manikam, Shamala D Sekaran
BACKGROUND: Currently, several assays can diagnose acute dengue infection. However, none of these assays can predict the severity of the disease. Biomarkers that predicts the likelihood that a dengue patient will develop a severe form of the disease could permit more efficient patient triage and allows better supportive care for the individual in need, especially during dengue outbreaks. METHODS: We measured 20 plasma markers i.e. IFN-γ, IL-10, granzyme-B, CX3CL1, IP-10, RANTES, CXCL8, CXCL6, VCAM, ICAM, VEGF, HGF, sCD25, IL-18, LBP, sCD14, sCD163, MIF, MCP-1 and MIP-1β in 141 dengue patients in over 230 specimens and correlate the levels of these plasma markers with the development of dengue without warning signs (DWS-), dengue with warning signs (DWS+) and severe dengue (SD)...
May 31, 2017: Journal of Translational Medicine
https://www.readbyqxmd.com/read/28522896/shear-stress-counteracts-endothelial-cx3cl1-induction-and-monocytic-cell-adhesion
#9
Aaron Babendreyer, Lisa Molls, Daniela Dreymueller, Stefan Uhlig, Andreas Ludwig
Flow conditions critically regulate endothelial cell functions in the vasculature. Reduced shear stress resulting from disturbed blood flow can drive the development of vascular inflammatory lesions. On endothelial cells, the transmembrane chemokine CX3CL1/fractalkine promotes vascular inflammation by functioning as a surface-expressed adhesion molecule and by becoming released as soluble chemoattractant for monocytic cells expressing the receptor CX3CR1. Here, we report that endothelial cells from human artery, vein, or microvasculature constitutively express CX3CL1 when cultured under static conditions...
2017: Mediators of Inflammation
https://www.readbyqxmd.com/read/28487961/influence-of-aspirin-on-the-cx3cl1-cx3cr1-signaling-pathway-in-acute-pulmonary-embolism
#10
Zhirong Zhang, Weiji Yang, Rongbiao Ying, Ying Shi, Huifang Jiang, Danli Cai, Jing Kuang, Ruhui Yang, Lingcong Wang
The present study aimed to explore the influence of aspirin on the CX3CL1/CX3CR1 signaling pathway in acute pulmonary embolism (APE) in rats. Our previous study found that CX3CL1/CX3CR1 was increased in APE. However, the effect of this signaling pathway on APE remains unclear. CX3CL1-shRNA adenovirus and CX3CL1-overexpression vector were constructed. Male Sprague-Dawley rats were randomly divided into 9 groups (n=10): normal group (group N), sham operation group (group Sham), sham operation + aspirin group (group ASP), model group (group M), model + ASP group (group M+A), model + shRNA group (group M+SH), sham operation + CX3CL1-overexpression vector group (group Sham+Cx3), model + ASP + shRNA group (group M+A+SH), and model + ASP + CX3CL1-overexpression vector group (group M+A+CX3)...
April 26, 2017: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/28470428/genome-wide-dna-methylation-analysis-of-articular-chondrocytes-identifies-traf1-ctgf-and-cx3cl1-genes-as-hypomethylated-in-osteoarthritis
#11
Like Zhao, Qian Wang, Chunmei Zhang, Cibo Huang
The aim of this study is to identify osteoarthritis (OA)-associated differentially methylated genes in human articular chondrocytes from patients with OA. DNA methylation profiling of articular chondrocytes from OA patients, rheumatoid arthritis (RA) patients, and controls was performed, and candidate genes were chosen for validation of gene demethylation status. The mRNA expression levels of candidate genes in chondrocytes were detected by real-time quantitative PCR. Chondrocytes from OA and RA group were treated with 5-Aza-2-deoxycytidine (5-Aza), and then the mRNA expression levels were detected...
May 3, 2017: Clinical Rheumatology
https://www.readbyqxmd.com/read/28424559/evidence-of-both-systemic-inflammation-and-neuroinflammation-in-fibromyalgia-patients-as-assessed-by-a-multiplex-protein-panel-applied-to-the-cerebrospinal-fluid-and-to-plasma
#12
Emmanuel Bäckryd, Lars Tanum, Anne-Li Lind, Anders Larsson, Torsten Gordh
In addition to central hyperexcitability and impaired top-down modulation, chronic inflammation probably plays a role in the pathophysiology of fibromyalgia (FM). Indeed, on the basis of both animal experiments and human studies involving the analysis of cytokines and other inflammation-related proteins in different body fluids, neuroinflammatory mechanisms are considered to be central to the pathophysiology of many chronic pain conditions. However, concerning FM, previous human plasma/serum and/or cerebrospinal fluid (CSF) cytokine studies have looked only at a few predetermined cytokine candidates...
2017: Journal of Pain Research
https://www.readbyqxmd.com/read/28413983/peripheral-blood-mononuclear-cells-of-alzheimer-s-disease-patients-control-ccl4-and-cxcl10-levels-in-a-human-blood-brain-barrier-model
#13
Julie Vérité, Thierry Janet, Adrien Julian, Damien Chassaing, Guylène Page, Marc Paccalin
BACKGROUND: Alzheimer's disease (AD) is accompanied by a neuroinflammation triggering chemoattractant signals towards peripheral blood mononuclear cells (PBMCs), in turn could reduce amyloid plaques after transmigration through the blood brain barrier (BBB). But the chemotactic environment remains unclear. OBJECTIVE: To analyze five chemokines known to be involved in AD in three different cellular models to better understand the cellular and molecular interactions in the BBB...
April 17, 2017: Current Alzheimer Research
https://www.readbyqxmd.com/read/28413686/cytokine-profiles-of-amyopathic-dermatomyositis-with-interstitial-lung-diseases-treated-with-mycophenolate
#14
Masachika Hayashi, Ami Aoki, Katsuaki Asakawa, Takuro Sakagami, Toshiaki Kikuchi, Toshinori Takada
A 59-year-old Japanese man diagnosed with interstitial lung disease associated with amyopathic dermatomyositis with anti-melanoma differentiation-associated gene 5 (MDA-5) antibodies was treated with intravenous methyl prednisolone (PSL) 1000 mg, oral PSL 1 mg/kg, and oral cyclosporin 200 mg daily. His respiratory condition worsened after treatment with two times of intravenous cyclophosphamide and another steroid pulse therapy as well as PSL and cyclosporin. Addition of mycophenolate mofetil (MMF), 1...
July 2017: Respirology Case Reports
https://www.readbyqxmd.com/read/28408697/the-combined-effect-of-bacillus-coagulans-gbi-30-6086-and-hmb-supplementation-on-muscle-integrity-and-cytokine-response-during-intense-military-training
#15
Yftach Gepner, Jay R Hoffman, Elad Shemesh, Jeffrey R Stout, David D Church, Alyssa N Varanoske, Hila Zelicha, Ilan Shelef, Yacov Chen, Hagai Frankel, Ishay Ostfeld
The purpose of this study was to compare the co-administration of the probiotic Bacillus coagulans GBI-30, 6086 (BC30) with β-hydroxy-β-methylbutyrate (HMB) calcium (CaHMB) to CaHMB alone on the inflammatory response and muscle integrity during 40-days of intense military training. Soldiers were randomly assigned to one of two groups: CaHMB with BC30 (CaHMBBC30; n=9) or CaHMB with placebo (CaHMBPL, n=9). A third group of participants served as a control (CTL; n=8). During the first 28 days soldiers were garrisoned on base and participated in the same training tasks...
April 13, 2017: Journal of Applied Physiology
https://www.readbyqxmd.com/read/28396851/increased-circulatory-levels-of-fractalkine-cx3cl1-are-associated-with-inflammatory-chemokines-and-cytokines-in-individuals-with-type-2-diabetes
#16
Sardar Sindhu, Nadeem Akhter, Hossein Arefanian, Areej Abu Al-Roub, Shamsha Ali, Ajit Wilson, Asma Al-Hubail, Shaima Al-Beloushi, Saad Al-Zanki, Rasheed Ahmad
BACKGROUND: Fractalkine (CX3CL1) is involved in the development of numerous inflammatory conditions including metabolic diseases. However, changes in the circulatory fractalkine levels in type-2 diabetes (T2D) and their relationship with inflammatory chemokines/cytokines remain unclear. The aim of the study was to determine the T2D-associated modulations in plasma fractalkine levels and investigate their relationship with circulatory chemokines/cytokines. METHODS: A total of 47 plasma samples were collected from 23 T2D and 24 non-diabetic individuals selected over a wide range of body mass index (BMI)...
2017: Journal of Diabetes and Metabolic Disorders
https://www.readbyqxmd.com/read/28389721/chemokines-in-neuron-glial-cell-interaction-and-pathogenesis-of-neuropathic-pain
#17
REVIEW
Zhi-Jun Zhang, Bao-Chun Jiang, Yong-Jing Gao
Neuropathic pain resulting from damage or dysfunction of the nervous system is a highly debilitating chronic pain state and is often resistant to currently available treatments. It has become clear that neuroinflammation, mainly mediated by proinflammatory cytokines and chemokines, plays an important role in the establishment and maintenance of neuropathic pain. Chemokines were originally identified as regulators of peripheral immune cell trafficking and were also expressed in neurons and glial cells in the central nervous system...
April 7, 2017: Cellular and Molecular Life Sciences: CMLS
https://www.readbyqxmd.com/read/28387445/stimulation-of-oral-fibroblast-chemokine-receptors-identifies-ccr3-and-ccr4-as-potential-wound-healing-targets
#18
Jeroen K Buskermolen, Sanne Roffel, Susan Gibbs
The focus of this study was to determine which chemokine receptors are present on oral fibroblasts and whether these receptors influence proliferation, migration, and/or the release of wound healing mediators. This information may provide insight into the superior wound healing characteristics of the oral mucosa. The gingiva fibroblasts expressed 12 different chemokine receptors (CCR3, CCR4, CCR6, CCR9, CCR10, CXCR1, CXCR2, CXCR4, CXCR5, CXCR7, CX3CR1, and XCR1), as analyzed by flow cytometry. Fourteen corresponding chemokines (CCL5, CCL15, CCL20, CCL22, CCL25, CCL27, CCL28, CXCL1, CXCL8, CXCL11, CXCL12, CXCL13, CX3CL1, and XCL1) were used to study the activation of these receptors on gingiva fibroblasts...
April 7, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/28375547/demyelination-induced-by-oxidative-stress-is-regulated-by-sphingosine-1-phosphate-receptors
#19
Sinead A O'Sullivan, Maria Velasco-Estevez, Kumlesh K Dev
Oxidative stress is a pathological condition defined as an imbalance between production and removal of reactive oxygen species. This process causes structural cell damage, disrupts DNA repair and induces mitochondrial dysfunction. Many in vitro studies have used direct bolus application of H2 O2 to investigate the role of oxidative stress in cell culture. In this study, using mouse organotypic cerebellar slice cultures, the effects of H2 O2 -induced oxidative stress on myelination state were examined, using bolus concentrations of H2 O2 (0...
April 4, 2017: Glia
https://www.readbyqxmd.com/read/28372329/dynamics-of-the-complement-cytokine-and-chemokine-systems-in-the-regulation-of-synaptic-function-and-dysfunction-relevant-to-alzheimer-s-disease
#20
Shanya Jiang, Kiran Bhaskar
Alzheimer's disease (AD) is the most common form of dementia affecting nearly 45 million people worldwide. However, the etiology of AD is still unclear. Accumulations of amyloid-β plaques and tau tangles, neuroinflammation, and synaptic and neuronal loss are the major neuropathological hallmarks of AD, with synaptic loss being the strongest correlating factor with memory and cognitive impairment in AD. Many of these pathological hallmarks influence each other during the onset and progression of the disease...
2017: Journal of Alzheimer's Disease: JAD
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