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https://www.readbyqxmd.com/read/28176921/increased-local-expressions-of-cx3cl1-and-ccl2-are-related-to-clinical-severity-in-lumbar-disk-herniation-patients-with-sciatic-pain
#1
Zhen-Yu Peng, Rui Chen, Zuo-Zhong Fang, Bin Chen, Zhi-Hua Wang, Xi-Yang Wang
BACKGROUND: Chemokines have been identified to be involved in the modulation of pain through both peripheral and central mechanisms. However, the role of chemokines in lumbar disk herniation (LDH) with sciatic pain remains unknown. OBJECTIVE: The current study was performed to explore the expression of two most commonly studied chemokines CX3CL1 and CCL2 and assess their associations with clinical severity in LDH patients with sciatic pain. METHODS: The soft tissues around nerve root (STANR), annulus fibrosus (AF), and nucleus pulposus (NP) biopsies were obtained from 36 LDH patients with chronic sciatic pain and 10 scoliosis patients (painless controls)...
2017: Journal of Pain Research
https://www.readbyqxmd.com/read/28132869/bone-marrow-derived-mesenchymal-stromal-cells-from-sickle-cell-disease-patients-display-intact-functionality
#2
Elizabeth O Stenger, Raghavan Chinnadurai, Shala Yuan, Marco Garcia, Dalia Arafat, Greg Gibson, Lakshmanan Krishnamurti, Jacques Galipeau
Hematopoietic cell transplantation (HCT) is the only cure for sickle cell disease (SCD), but engraftment remains challenging in patients lacking matched donors. Infusion of mesenchymal stromal cells (MSCs) at time of HCT may promote hematopoiesis and ameliorate graft-versus-host disease. Experimental murine models suggest MSC major histocompatibility complex compatibility with recipient impacts their in vivo function, suggesting autologous MSCs could be superior to third-party MSCs for promoting HCT engraftment...
January 26, 2017: Biology of Blood and Marrow Transplantation
https://www.readbyqxmd.com/read/28125278/roles-for-the-cx3cl1-cx3cr1-and-ccl2-ccr2-chemokine-systems-in-hypoxic-pulmonary-hypertension
#3
Valérie Amsellem, Shariq Abid, Lucie Poupel, Aurélien Parpaleix, Mathieu Rodero, Guillaume Gary-Bobo, Mehdi Latiri, Jean-Luc Dubois-Rande, Larissa Lipskaia, Christophe Combadiere, Serge Adnot
Monocytes/macrophages are major effectors of lung inflammation associated with various forms of pulmonary hypertension (PH). Interactions between the CCL2/CCR2 and CX3CL1/CX3CR1 chemokine systems that guide phagocyte infiltration are incompletely understood. Our objective was to explore the individual and combined actions of CCL2/CCR2 and CX3CL1/CX3CR1 in hypoxia-induced PH in mice, particularly their roles in monocyte trafficking, macrophage polarization, and pulmonary vascular remodeling. The development of hypoxia-induced PH was associated with marked increases in lung levels of CX3CR1, CCR2, and their respective ligands CX3CL1 and CCL2...
January 26, 2017: American Journal of Respiratory Cell and Molecular Biology
https://www.readbyqxmd.com/read/28122354/cx3cl1-a-potential-chemokine-widely-involved-in-the-process-spinal-metastases
#4
WangMi Liu, Chong Bian, Yun Liang, Libo Jiang, Chen Qian, Jian Dong
OBJECTIVES: The aim of our study was to investigate the general mechanism of spinal metastases from five different primary cancers: lung cancer, breast cancer, liver cancer, prostate cancer, and kidney cancer. RESULTS: From microarray analysis and validation by real-time polymerase chain reaction, CX3C chemokine ligand 1 (CX3CL1) appeared to be a potential chemokine widely involved in the process of spinal metastases. Further studies revealed that, compared with normal controls, serum samples from patients with spinal metastases from the lung (P < 0...
January 20, 2017: Oncotarget
https://www.readbyqxmd.com/read/28101527/regulation-of-physical-microglia-neuron-interactions-by-fractalkine-signaling-after-status-epilepticus
#5
Ukpong B Eyo, Jiyun Peng, Madhuvika Murugan, Mingshu Mo, Almin Lalani, Ping Xie, Pingyi Xu, David J Margolis, Long-Jun Wu
Microglia, the resident immune cells of the brain, perform elaborate surveillance in which they physically interact with neuronal elements. A novel form of microglia-neuron interaction named microglial process convergence (MPC) toward neuronal axons and dendrites has recently been described. However, the molecular regulators and pathological relevance of MPC have not been explored. Here, using high-resolution two-photon imaging in vivo and ex vivo, we observed a dramatic increase in MPCs after kainic acid- or pilocarpine-induced experimental seizures that was reconstituted after glutamate treatment in slices from mice...
November 2016: ENeuro
https://www.readbyqxmd.com/read/28044228/reduced-il-37-production-increases-spontaneous-chemokine-expressions-in-colon-epithelial-cells
#6
Sezin Günaltay, Mohammed Ghiboub, Olof Hultgren, Elisabeth Hultgren Hörnquist
BACKGROUND AND AIM: Microscopic colitis, comprising collagenous colitis and lymphocytic colitis, is a common cause of chronic diarrhea. Previously, we showed enhanced chemokine productions in microscopic colitis patients, indicating dysregulated immune cell chemotaxis in the immunopathogenesis. We also showed decreased mRNA of IL-37, mainly regarded as an anti-inflammatory cytokine, in the colonic mucosa of these patients, potentially an important factor for the chronicity of the colitis...
January 2, 2017: Digestive Diseases and Sciences
https://www.readbyqxmd.com/read/28039570/different-transcriptional-profiling-between-senescent-and-non-senescent-human-coronary-artery-endothelial-cells-hcaecs-by-omeprazole-and-lansoprazole-treatment
#7
Laura Costarelli, Robertina Giacconi, Marco Malavolta, Andrea Basso, Francesco Piacenza, Mauro Provinciali, Marcello G Maggio, Andrea Corsonello, Fabrizia Lattanzio
Recent evidence suggests that high dose and/or long term use of proton pump inhibitors (PPIs) may increase the risk of adverse cardiovascular events in older patients, but mechanisms underlying these detrimental effects are not known. Taking into account that the senescent endothelial cells have been implicated in the genesis or promotion of age-related cardiovascular disease, we hypothesized an active role of PPIs in senescent cells. The aim of this study is to investigate the changes in gene expression occurring in senescent and non-senescent human coronary artery endothelial cells (HCAECs) following Omeprazole (OPZ) or Lansoprazole (LPZ) treatment...
December 30, 2016: Biogerontology
https://www.readbyqxmd.com/read/27942903/downregulation-of-cx3cr1-ameliorates-experimental-colitis-evidence-for-cx3cl1-cx3cr1-mediated-immune-cell-recruitment
#8
Felix Becker, Christina Holthoff, Christoph Anthoni, Emile Rijcken, J Steven Alexander, Felicity N E Gavins, H U Spiegel, Norbert Senninger, Thorsten Vowinkel
PURPOSE: Inflammatory conditions like inflammatory bowel diseases (IBD) are characterized by increased immune cell infiltration. The chemokine ligand CX3CL1 and its receptor CX3CR1 have been shown to be involved in leukocyte adhesion, transendothelial recruitment, and chemotaxis. Therefore, the objective of this study was to describe CX3CL1-CX3CR1-mediated signaling in the induction of immune cell recruitment during experimental murine colitis. METHODS: Acute colitis was induced by dextran sodium sulfate (DSS), and sepsis was induced by injection of lipopolysaccharide (LPS)...
December 10, 2016: International Journal of Colorectal Disease
https://www.readbyqxmd.com/read/27941884/emergent-role-of-the-fractalkine-axis-in-dissemination-of-peritoneal-metastasis-from-epithelial-ovarian-carcinoma
#9
H Gurler Main, J Xie, G G Muralidhar, O Elfituri, H Xu, A A Kajdacsy-Balla, M V Barbolina
Epithelial ovarian carcinoma is the most common cause of death from gynecologic cancers largely due to advanced, relapsed and chemotherapy-resistant peritoneal metastasis, which is refractory to the currently used treatment approaches. Mechanisms supporting advanced and relapsed peritoneal metastasis are largely unknown, precluding development of more effective targeted therapies. In this study, we investigated the function of a potentially targetable fractalkine axis in the formation and the development of advanced and relapsed peritoneal metastasis and its impact on patients' outcomes...
December 12, 2016: Oncogene
https://www.readbyqxmd.com/read/27939754/increasing-no-level-regulates-apoptosis-and-inflammation-in-macrophages-after-2-chloroethyl-ethyl-sulphide-challenge
#10
Satish Sagar, Soumya Ranjan Parida, Silpa Sabnam, Huma Rizwan, Sweta Pal, Mitali Madhusmita Swain, Arttatrana Pal
Generation of nitric oxide (NO) in cellular compartments acts in a redox-dependent manner to counteract oxidative stress either by directly acting as an antioxidant through scavenging superoxide anions (O2(-)), to form peroxynitrite (ONOO-) or acting as a signaling molecule, altering gene expression that triggers various physiological processes. However, the molecular mechanisms of macrophage activation and NO production leads to apoptosis and inflammation after 2-chloroethyl ethyl sulphide (CEES) exposure remains unclear...
December 9, 2016: International Journal of Biochemistry & Cell Biology
https://www.readbyqxmd.com/read/27935376/mesenchymal-stem-cells-modulate-light-induced-activation-of-retinal-microglia-through-cx3cl1-cx3cr1-signaling
#11
Libin Huang, Guoxing Xu, Jian Guo, Maosong Xie, Lisha Chen, Wei Xu
PURPOSE: To evaluate the effect of CX3CL1/CX3CR1 signaling on the interaction between mesenchymal stem cells (MSCs) and retinal microglia. METHODS: Supernatants of homogenized retina were harvested from light-damaged SD rats (ISHR) to stimulated retinal microglia. Stimulated microglia were cocultured with MSCs, CX3CL1 over-expressing MSCs (CX3CL1-MSCs) or CX3CL1-blocked MSCs (anti-CX3CL1-MSCs) for 24 hours, and their molecular and functional changes were examined...
December 2016: Ocular Immunology and Inflammation
https://www.readbyqxmd.com/read/27932942/loss-of-fractalkine-signaling-exacerbates-axon-transport-dysfunction-in-a-chronic-model-of-glaucoma
#12
Kevin T Breen, Sarah R Anderson, Michael R Steele, David J Calkins, Alejandra Bosco, Monica L Vetter
Neurodegeneration in glaucoma results in decline and loss of retinal ganglion cells (RGCs), and is associated with activation of myeloid cells such as microglia and macrophages. The chemokine fractalkine (FKN or Cx3cl1) mediates communication from neurons to myeloid cells. Signaling through its receptor Cx3cr1 has been implicated in multiple neurodegenerative diseases, but the effects on neuronal pathology are variable. Since it is unknown how FKN-mediated crosstalk influences RGC degeneration in glaucoma, we assessed this in a chronic mouse model, DBA/2J...
2016: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/27927779/depletion-of-gut-microbiota-protects-against-renal-ischemia-reperfusion-injury
#13
Diba Emal, Elena Rampanelli, Ingrid Stroo, Loes M Butter, Gwendoline J Teske, Nike Claessen, Geurt Stokman, Sandrine Florquin, Jaklien C Leemans, Mark C Dessing
An accumulating body of evidence shows that gut microbiota fulfill an important role in health and disease by modulating local and systemic immunity. The importance of the microbiome in the development of kidney disease, however, is largely unknown. To study this concept, we depleted gut microbiota with broad-spectrum antibiotics and performed renal ischemia-reperfusion (I/R) injury in mice. Depletion of the microbiota significantly attenuated renal damage, dysfunction, and remote organ injury and maintained tubular integrity after renal I/R injury...
December 7, 2016: Journal of the American Society of Nephrology: JASN
https://www.readbyqxmd.com/read/27924190/network-analysis-of-human-post-mortem-microarrays-reveals-novel-genes-micrornas-and-mechanistic-scenarios-of-potential-importance-in-fighting-huntington-s-disease
#14
Sreedevi Chandrasekaran, Danail Bonchev
Huntington's disease is a progressive neurodegenerative disorder characterized by motor disturbances, cognitive decline, and neuropsychiatric symptoms. In this study, we utilized network-based analysis in an attempt to explore and understand the underlying molecular mechanism and to identify critical molecular players of this disease condition. Using human post-mortem microarrays from three brain regions (cerebellum, frontal cortex and caudate nucleus) we selected in a four-step procedure a seed set of highly modulated genes...
2016: Computational and Structural Biotechnology Journal
https://www.readbyqxmd.com/read/27923568/noradrenaline-induces-cx3cl1-production-and-release-by-neurons
#15
José L M Madrigal, Javier R Caso, Borja García-Bueno, Irene L Gutiérrez, Juan C Leza
CX3CL1 is a chemokine for which neurons constitute its primary source within the brain. Besides acting as a chemokine, CX3CL1 regulates multiple processes and is known to inhibit microglial activation. Because of this, CX3CL1 is considered as a messenger used by neurons to communicate with microglia. Similarly, the neurotransmitter noradrenaline reduces microglial activation and production of neurotoxic agents. Based on this, the regulation of neuronal CX3CXL1 by noradrenaline was analyzed. In primary cortical neurons, noradrenaline induced the accumulation of CX3CL1 protein and mRNA...
March 1, 2017: Neuropharmacology
https://www.readbyqxmd.com/read/27896922/-epigallocatechin-3-gallate-antihyperalgesic-effect-associates-with-reduced-cx3cl1-chemokine-expression-in-spinal-cord
#16
Marc Bosch-Mola, Judit Homs, Beltrán Álvarez-Pérez, Teresa Puig, Francisco Reina, Enrique Verdú, Pere Boadas-Vaello
(-)-Epigallocatechin-3-gallate (EGCG) is a major polyphenol in green tea with beneficial effects on the neuropathic pain alleviation in animal models. Because chemokine fractalkine (CX3CL1) has been suggested as an important signal during neuropathic pain development, this study aimed to investigate whether CX3CL1 expression may be modulated by EGCG treatment reducing hyperalgesia in chronic constriction injured mice. To this end, Balb/c mice were subjected to a chronic constriction injury of sciatic nerve (CCI) and treated with EGCG or vehicle once a day during the first week following surgery...
February 2017: Phytotherapy Research: PTR
https://www.readbyqxmd.com/read/27895167/pgi2-controls-pulmonary-nk-cells-that-prevent-airway-sensitization-to-house-dust-mite-allergen
#17
Bryan Simons, Maria E Ferrini, Sophia Carvalho, David J P Bassett, Zeina Jaffar, Kevan Roberts
In allergic asthma, inhalation of airborne allergens such as the house dust mite (HDM) effectively activates both innate and adaptive immunity in the lung mucosa. To determine the role of the eicosanoid PGI2 and its receptor IP during allergic airway sensitization, HDM responses in mice lacking a functional IP receptor (i.e., PGI2 IP receptor-deficient [IP(-/-)]) were compared with wild type (WT) mice. Surprisingly, IP(-/-) mice had increased numbers of pulmonary CD3(-)NK1.1(+)Ly49b(+) NK cells producing IFN-γ that was inversely associated with the number of type 2 innate lymphoid cells (ILC2s) expressing IL-33Rα and IL-13 compared with WT animals...
January 1, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/27893098/vitreal-cytokine-profile-differences-between-eyes-with-epiretinal-membranes-or-macular-holes
#18
Souska Zandi, Christoph Tappeiner, Isabel B Pfister, Alain Despont, Robert Rieben, Justus G Garweg
Purpose: Cytokines play an important role in cell signaling in inflammatory and repair processes, also within the posterior segment of the eye. These molecules are thus implicated in the pathophysiology of several vitreoretinal diseases. In the present study, we compared vitreal cytokine profiles in patients with idiopathic epiretinal membranes (ERMs) and idiopathic full-thickness macular holes (MHs) without epiretinal membranes. Methods: Native vitreal humor was collected during elective pars plana vitrectomy for the treatment of macular pathologies (group 1: ERM; group 2: MH) from patients without any other ocular or systemic disease...
November 1, 2016: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/27891323/reduced-cx3cl1-secretion-contributes-to-the-susceptibility-of-oral-leukoplakia-associated-fibroblasts-to-candida-albicans
#19
Ran Cheng, Duo Li, Xueke Shi, Qinghong Gao, Changlei Wei, Xiaoyu Li, Yan Li, Hongmei Zhou
Candida leukoplakia (OLK) is a kind of oral leukoplakia combined with chronic candidal infection, which plays an important role in the malignant transformation of OLK. However, little is known about the etiology, including susceptibility of leukoplakia to candidal adhesion, invasion and infection. Some antimicrobial peptides secreted by oral epithelial cells or fibroblasts potentially have antifungal activities against Candida albicans (C. albicans). In this study, we established three co-culture models to simulate different C...
2016: Frontiers in Cellular and Infection Microbiology
https://www.readbyqxmd.com/read/27873479/cytokine-and-chemokine-tear-levels-in-patients-with-uveitis
#20
Ester Carreño, Alejandro Portero, José M Herreras, Carmen García-Vázquez, Scott M Whitcup, Michael E Stern, Margarita Calonge, Amalia Enríquez-de-Salamanca
PURPOSE: To determine whether the levels of cytokines and chemokines in tears differ in uveitis patients and healthy subjects. METHODS: Ninety-two uveitis patients (mean age 46.4 years) and 157 control healthy subjects (mean age 49.5 years) were recruited. Subjects with ocular surface diseases such as dry eye were excluded from the study. Using multiplex bead-based assays, tears (4 μl) were analysed for the concentration of interleukin (IL)-1β, IL-1RA, IL-2, IL-6, IL-7, IL-8/CXCL8, IL-10, IL-12p70, IL-15, IL-17A, IL-23, epidermal growth factor (EGF), fractalkine/CX3CL1, interferon-γ, IP-10/CXCL10, monocyte chemo-attractant protein (MCP)-1/CCL2, tumour necrosis factor-α, vascular endothelial growth factor (VEGF), transforming growth factor (TGF)-β1, TGF-β2 and TGF-β3...
November 22, 2016: Acta Ophthalmologica
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