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https://www.readbyqxmd.com/read/28178994/doxycycline-attenuates-breast-cancer-related-inflammation-by-decreasing-plasma-lysophosphatidate-concentrations-and-inhibiting-nf-%C3%AE%C2%BAb-activation
#1
Xiaoyun Tang, Xianyan Wang, Yuan Y Zhao, Jonathan M Curtis, David N Brindley
BACKGROUND: We previously discovered that tetracyclines increase the expression of lipid phosphate phosphatases at the surface of cells. These enzymes degrade circulating lysophosphatidate and therefore doxycycline increases the turnover of plasma lysophosphatidate and decreases its concentration. Extracellular lysophosphatidate signals through six G protein-coupled receptors and it is a potent promoter of tumor growth, metastasis and chemo-resistance. These effects depend partly on the stimulation of inflammation that lysophosphatidate produces...
February 8, 2017: Molecular Cancer
https://www.readbyqxmd.com/read/28173860/ccl11-promotes-migration-and-proliferation-of-mouse-neural-progenitor-cells
#2
Feifei Wang, Nobuyasu Baba, Yuan Shen, Tatsuyuki Yamashita, Emi Tsuru, Masayuki Tsuda, Nagamasa Maeda, Yusuke Sagara
BACKGROUND: Neonatal hypoxia-ischemia induces massive brain damage during the perinatal period, resulting in long-term consequences to central nervous system structural and functional maturation. Although neural progenitor cells (NPCs) migrate through the parenchyma and home in to injury sites in the rodent brain, the molecular mechanisms are unknown. We examined the role of chemokines in mediating NPC migration after neonatal hypoxic-ischemic brain injury. METHODS: Nine-day-old mice were exposed to a 120-minute hypoxia following unilateral carotid occlusion...
February 7, 2017: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/28145562/methylated-of-genes-behaving-as-potential-biomarkers-in-evaluating-malignant-degree-of-glioblastoma
#3
Wan-Shun Wen, Sheng-Li Hu, Zhibing Ai, Lin Mou, Jing-Min Lu, Sen Li
Abnormal methylation genes usually act as oncogenes or anti-oncogenes in the occurrence and development of tumor, indicating their potential role as biomarkers in the evaluation of malignant tumor. However, the research on methylation's association with glioblastoma was rare. We attempted to figure out whether the methylation of genes could serve as the biomarker in evaluating the malignant degree of GBM. Methylation microarray data of 275 GBM patients have been downloaded from The Cancer Genome Atlas (TCGA) dataset...
February 1, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/28125674/characterisation-of-immune-and-neuroinflammatory-changes-associated-with-chemotherapy-induced-peripheral-neuropathy
#4
Preet G S Makker, Samuel S Duffy, Justin G Lees, Chamini J Perera, Ryan S Tonkin, Oleg Butovsky, Susanna B Park, David Goldstein, Gila Moalem-Taylor
Chemotherapy-induced peripheral neuropathy (CIPN) and associated neuropathic pain is a debilitating adverse effect of cancer treatment. Current understanding of the mechanisms underpinning CIPN is limited and there are no effective treatment strategies. In this study, we treated male C57BL/6J mice with 4 cycles of either Paclitaxel (PTX) or Oxaliplatin (OXA) over a week and tested pain hypersensitivity and changes in peripheral immune responses and neuroinflammation on days 7 and 13 post 1st injection. We found that both PTX and OXA caused significant mechanical allodynia...
2017: PloS One
https://www.readbyqxmd.com/read/28119485/plasma-cytokines-and-chemokines-in-zambian-children-with-measles-innate-responses-and-association-with-hiv-1-co-infection-and-in-hospital-mortality
#5
Wen-Hsuan W Lin, Ashley Nelson, Judith J Ryon, William J Moss, Diane E Griffin
To identify immune factors present during the acute rash phase of measles and associations with outcome and HIV-1 co-infection, we measured the plasma levels of 22 cytokines and chemokines in Zambian children hospitalized with measles (N=148) and control children (N=44). Children with measles had higher levels of innate cytokines TNF-α , IL-1β , IL-18 and IL-6; chemokines CCL2, CCL4, CCL11, CCL22, CXCL8 and CXCL10; and T cell cytokines IFN-γ , IL-2, IL-10 and IL-17. Children who died in-hospital had higher levels of TNF-α , IL-1β , IL-12p70; CCL2, CCL4, CCL13, CCL17, CXCL8, CXCL10; IL-2 and IFN-γ and lower levels of IL-4, than children who survived...
January 24, 2017: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/28107494/protective-roles-for-rgs2-in-a-mouse-model-of-house-dust-mite-induced-airway-inflammation
#6
Tresa George, Matthew Bell, Mainak Chakraborty, David P Siderovski, Mark A Giembycz, Robert Newton
The GTPase-accelerating protein, regulator of G-protein signalling 2 (RGS2) reduces signalling from G-protein-coupled receptors (GPCRs) that signal via Gαq. In humans, RGS2 expression is up-regulated by inhaled corticosteroids (ICSs) and long-acting β2-adrenoceptor agonists (LABAs) such that synergy is produced in combination. This may contribute to the superior clinical efficacy of ICS/LABA therapy in asthma relative to ICS alone. In a murine model of house dust mite (HDM)-induced airways inflammation, three weeks of intranasal HDM (25 μg, 3×/week) reduced lung function and induced granulocytic airways inflammation...
2017: PloS One
https://www.readbyqxmd.com/read/28102022/the-flavonoid-7-4-dihydroxyflavone-prevents-dexamethasone-paradoxical-adverse-effect-on-eotaxin-production-by-human-fibroblasts
#7
Changda Liu, Nan Yang, Xiaoke Chen, Jody Tversky, Jixun Zhan, Mirna Chehade, Rachel L Miller, Xiu-Min Li
Eotaxin/CCL-11 is a major chemoattractant that contributes to eosinophilic inflammation in asthma. Glucocorticoids inhibit inflammation, but long-time exposure may cause paradoxical adverse effects by augmenting eotaxin/CCL-11production. The aim of this study was to determine if 7,4'-dihydroxyflavone (7,4'-DHF), the eotaxin/CCL11 inhibitor isolated from Glycyrrhiza uralensis, reduces in vitro eotaxin production induced by long-time dexamethasone (Dex) exposure, and if so, to elucidate the mechanisms of this inhibition...
January 19, 2017: Phytotherapy Research: PTR
https://www.readbyqxmd.com/read/28053519/network-pharmacology-based-identification-of-key-pharmacological-pathways-of-yin-huang-qing-fei-capsule-acting-on-chronic-bronchitis
#8
Guohua Yu, Yanqiong Zhang, Weiqiong Ren, Ling Dong, Junfang Li, Ya Geng, Yi Zhang, Defeng Li, Haiyu Xu, Hongjun Yang
For decades in China, the Yin-Huang-Qing-Fei capsule (YHQFC) has been widely used in the treatment of chronic bronchitis, with good curative effects. Owing to the complexity of traditional Chinese herbal formulas, the pharmacological mechanism of YHQFC remains unclear. To address this problem, a network pharmacology-based strategy was proposed in this study. At first, the putative target profile of YHQFC was predicted using MedChem Studio, based on structural and functional similarities of all available YHQFC components to the known drugs obtained from the DrugBank database...
2017: International Journal of Chronic Obstructive Pulmonary Disease
https://www.readbyqxmd.com/read/28041977/induction-of-the-mcp-chemokine-cluster-cascade-in-the-periphery-by-cancer-cell-derived-ccl3
#9
Elena Farmaki, Vimala Kaza, Athanasios G Papavassiliou, Ioulia Chatzistamou, Hippokratis Kiaris
The induction of localized pro-inflammatory niches in the periphery is instrumental in metastasis. In order to better understand how tumors engage distal sites and activate a pro-inflammatory response we utilized syngeneic breast cancers as a model and showed that soluble factors from the neoplastic epithelium activate the expression of the monocyte chemoattractive protein (MCP) chemokines of the mouse 11C cluster that include Ccl1, Ccl2, Ccl7, Ccl8, Ccl11 and Ccl12. Tissues such as the lungs and the brain, that are more prone to colonization by breast cancer cells, were more sensitive to MCP cluster chemokine induction than others such as the liver...
March 28, 2017: Cancer Letters
https://www.readbyqxmd.com/read/27940218/multiplex-assay-reliability-and-long-term-intra-individual-variation-of-serologic-inflammatory-biomarkers
#10
Heather S McKay, Joseph B Margolick, Otoniel Martínez-Maza, Joseph Lopez, John Phair, Giovanna Rappocciolo, Thomas N Denny, Larry I Magpantay, Lisa P Jacobson, Jay H Bream
BACKGROUND: Circulating cytokines, chemokines, and soluble cytokine receptors can serve as biomarkers of inflammation and immune dysregulation. Good reliability of multiplex platforms, which allow for simultaneous, comprehensive biomarker assessment, is critical for their utility in epidemiologic studies. We examined the reliability of the Meso-Scale Discovery (MSD) platform to simultaneously quantitate 15 cytokines and chemokines and the Luminex platform (R&D Systems) to quantitate 5 soluble receptors and 2 chemokines and cytokines and evaluated long-term within-person correlation of these biomarkers...
December 8, 2016: Cytokine
https://www.readbyqxmd.com/read/27918096/back-cover-story-eur-j-immunol-12-16
#11
(no author information available yet)
Our back cover features an H&E stained biopsy section from a patient with eosinophilic myocarditis. Countless heart-infiltrating eosinophils with bright pink granules and bi-lobed nuclei are visible between large, striated cardiomyocytes. In addition, T cells and macrophages are infiltrating the heart. This image relates to the article by Diny et al. (pp. 2749-2760), in which the authors analyze the pathway required for eosinophil trafficking to the heart by examining heart biopsies from myocarditis patients and a murine myocarditis model...
December 2016: European Journal of Immunology
https://www.readbyqxmd.com/read/27881708/il-35-suppresses-lipopolysaccharide-induced-airway-eosinophilia-in-ebi3-deficient-mice
#12
Kyosuke Kanai, Ah-Mee Park, Hiroki Yoshida, Ikuo Tsunoda, Osamu Yoshie
EBI3 functions as the subunit of immune-regulatory cytokines, such as IL-27 and IL-35, by pairing with p28 and p35, respectively. We treated wild-type and EBI3-deficient mice with intratracheal administration of LPS and obtained bronchoalveolar lavage fluid (BALF) 24 h later. Although neutrophils were the predominant cells in BALF from both groups of mice, eosinophils were highly enriched and there was increased production of eosinophil-attracting chemokines CCL11 and CCL24 in BALF of EBI3-deficient mice. The bronchial epithelial cells and alveolar macrophages were the major producers of CCL11 and CCL24...
January 1, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/27878757/targeting-ccr3-to-reduce-amyloid-%C3%AE-production-tau-hyperphosphorylation-and-synaptic-loss-in-a-mouse-model-of-alzheimer-s-disease
#13
Chunyan Zhu, Bing Xu, Xiaohong Sun, Qiwen Zhu, Yi Sui
The majority of Alzheimer's disease (AD) patients have a late onset, and chronic neuroinflammation, characterized by glial activation and secretion of pro-inflammatory cytokines and chemokines, plays a role in the pathogenesis of AD. The chemokine CCL11 has been shown to be a causative factor of cognitive decline in the process of aging, but little is known whether it is involved in the pathogenesis of AD. In the present study, we showed that CCR3, the receptor for CCL11, was expressed by hippocampal neurons and treatment of primary hippocampal neuronal cultures (14 days in vitro) with CCL11 resulted in activation of cyclin-dependent kinase 5 and glycogen synthase kinase-3β, associated with elevated tau phosphorylation at multiple sites...
November 23, 2016: Molecular Neurobiology
https://www.readbyqxmd.com/read/27833910/extracellular-microvesicle-production-by-human-eosinophils-activated-by-inflammatory-stimuli
#14
Praveen Akuthota, Lívia A S Carmo, Kennedy Bonjour, Ryann O Murphy, Thiago P Silva, Juliana P Gamalier, Kelsey L Capron, John Tigges, Vasilis Toxavidis, Virginia Camacho, Ionita Ghiran, Shigeharu Ueki, Peter F Weller, Rossana C N Melo
A key function of human eosinophils is to secrete cytokines, chemokines and cationic proteins, trafficking, and releasing these mediators for roles in inflammation and other immune responses. Eosinophil activation leads to secretion of pre-synthesized granule-stored mediators through different mechanisms, but the ability of eosinophils to secrete extracellular vesicles (EVs), very small vesicles with preserved membrane topology, is still poorly understood. In the present work, we sought to identify and characterize EVs released from human eosinophils during different conditions: after a culturing period or after isolation and stimulation with inflammatory stimuli, which are known to induce eosinophil activation and secretion: CCL11 (eotaxin-1) and tumor necrosis factor alpha (TNF-α)...
2016: Frontiers in Cell and Developmental Biology
https://www.readbyqxmd.com/read/27825045/therapeutic-effects-of-rosmarinic-acid-on-airway-responses-in-a-murine-model-of-asthma
#15
Zhengmin Liang, Haiying Nie, Yangfeng Xu, Jianbo Peng, Yun Zeng, Yingyi Wei, Xuemei Wen, Jiaming Qiu, Weiting Zhong, Xuming Deng, Jiakang He
Rosmarinic acid (RA) is an active component of a traditional Chinese herbal medicine. Previously, we reported that RA exerted a strong anti-inflammatory effect in a mouse acute lung injury model. Therefore, we hypothesized that RA might also have potential therapeutic effects in a murine model of asthma. In this study, we aimed to evaluate the anti-asthmatic activity of RA and explored its possible molecular mechanisms of action. Female BALB/c mice that had been sensitized to and challenged with ovalbumin (Ova) were treated with RA (20mg/kg) 1h after challenge...
December 2016: International Immunopharmacology
https://www.readbyqxmd.com/read/27820933/secretoglobin-superfamily-protein-scgb3a2-alleviates-house-dust-mite-induced-allergic-airway-inflammation-in-mice
#16
Mitsuhiro Yoneda, Lei Xu, Hiroaki Kajiyama, Shuko Kawabe, Jorge Paiz, Jerrold M Ward, Shioko Kimura
BACKGROUND: Secretoglobin (SCGB) 3A2, a novel, lung-enriched, cytokine-like, secreted protein of small molecular weight, was demonstrated to exhibit various biological functions including anti-inflammatory, antifibrotic and growth-factor activities. Anti-inflammatory activity was uncovered using the ovalbumin-induced allergic airway inflammation model. However, further validation of this activity using knockout mice in a different allergic inflammation model is necessary in order to establish the antiallergic inflammatory role for this protein...
2016: International Archives of Allergy and Immunology
https://www.readbyqxmd.com/read/27820779/bruton-tyrosine-kinase-inhibition-attenuates-liver-damage-in-a-mouse-warm-ischemia-and-reperfusion-model
#17
Tiziana Palumbo, Kojiro Nakamura, Charles Lassman, Yoko Kidani, Steven J Bensinger, Ronald Busuttil, Jerzy Kupiec-Weglinski, Ali Zarrinpar
BACKGROUND: Bruton tyrosine kinase (Btk) is a central player in multiple signaling pathways of lymphoid and myeloid cells. Myeloid cells are crucial early effectors in organ ischemia-reperfusion (IR) injury. BTKB66 is a selective, irreversible inhibitor of Btk. In this study, we hypothesized that Btk inhibition would reduce hepatocellular injury in a murine model of liver warm hepatic IR. METHODS: First, BTKB66 was tested in in vitro models of lipopolysaccharide-mediated neutrophil and macrophage activation...
February 2017: Transplantation
https://www.readbyqxmd.com/read/27795621/ccr9-is-a-key-regulator-of-early-phases-of-allergic-airway-inflammation
#18
C López-Pacheco, G Soldevila, G Du Pont, R Hernández-Pando, E A García-Zepeda
Airway inflammation is the most common hallmark of allergic asthma. Chemokine receptors involved in leukocyte recruitment are closely related to the pathology in asthma. CCR9 has been described as a homeostatic and inflammatory chemokine receptor, but its role and that of its ligand CCL25 during lung inflammation remain unknown. To investigate the role of CCR9 as a modulator of airway inflammation, we established an OVA-induced allergic inflammation model in CCR9-deficient mice. Here, we report the expression of CCR9 and CCL25 as early as 6 hours post-OVA challenge in eosinophils and T-lymphocytes...
2016: Mediators of Inflammation
https://www.readbyqxmd.com/read/27794000/airway-epithelial-kif3a-regulates-th2-responses-to-aeroallergens
#19
Premkumar Vummidi Giridhar, Sheila M Bell, Anusha Sridharan, Priya Rajavelu, Joseph A Kitzmiller, Cheng-Lun Na, Matthew Kofron, Eric B Brandt, Mark Ericksen, Anjaparavanda P Naren, Changsuk Moon, Gurjit K Khurana Hershey, Jeffrey A Whitsett
KIF3A, the gene encoding kinesin family member 3A, is a susceptibility gene locus associated with asthma; however, mechanisms by which KIF3A might influence the pathogenesis of the disorder are unknown. In this study, we deleted the mouse Kif3a gene in airway epithelial cells. Both homozygous and heterozygous Kif3a gene-deleted mice were highly susceptible to aeroallergens from Aspergillus fumigatus and the house dust mite, resulting in an asthma-like pathology characterized by increased goblet cell metaplasia, airway hyperresponsiveness, and Th2-mediated inflammation...
December 1, 2016: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/27780270/placental-chemokine-receptor-d6-is-functionally-impaired-in-pre-eclampsia
#20
Chiara Tersigni, Fiorella Di Nicuolo, Giuseppe Maulucci, Alessandro Rolfo, Domenica Giuffrida, Manuela Veglia, Marco De Spirito, Giovanni Scambia, Tullia Todros, Nicoletta Di Simone
BACKGROUND: Pre-eclampsia (PE) is a major cause of maternal and perinatal morbidity and mortality worldwide. It is defined by new onset of hypertension and proteinuria after the 20th week of gestation and characterized by systemic exaggerated inflammatory response. D6 is a chemokines scavenger receptor that binds with high affinity CC chemokines, internalizes and targets the ligands for degradation. It is expressed in trophoblast-derived tissues and prevents excessive placenta leukocyte infiltration...
2016: PloS One
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