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Inflammation mediators

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https://www.readbyqxmd.com/read/28927132/downregulation-of-esophageal-cancer-related-gene-4-promotes-proliferation-and-migration-of-hepatocellular-carcinoma
#1
Shujian Ge, Yali Xu, Hongliang Wang, Yaxin Sun, Xiangguo Tian, Zhixin Cao, Xiaoyan Lin, Jiawen Xu, Qiangxiu Wang
Esophageal cancer-related gene 4 (ECRG4) is a candidate tumor suppressor gene, which is involved in cell apoptosis, migration, infection and inflammation responsiveness; however, its expression level and clinical significance in hepatocellular carcinoma (HCC) remains unclear. In the present study, the authors aim to evaluate the clinical significance and potential role of ECRG4 in HCC. Level of ECRG4 protein expression in HCC and peripheral tissues was investigated in tissue specimens obtained from 56 consecutive HCC patients by immunohistochemistry...
September 2017: Oncology Letters
https://www.readbyqxmd.com/read/28926962/anti-nkg2d-mab-a-new-treatment-for-crohn-s-disease
#2
REVIEW
Kasper Vadstrup, Flemming Bendtsen
Crohn's disease (CD) and ulcerative colitis (UC) are immunologically-mediated, debilitating conditions resulting from destructive inflammation of the gastrointestinal tract. The pathogenesis of IBD is incompletely understood, but is considered to be the result of an abnormal immune response with a wide range of cell types and proteins involved. Natural Killer Group 2D (NKG2D) is an activating receptor constitutively expressed on human Natural Killer (NK), γδ T, mucosal-associated invariant T (MAIT), CD56⁺ T, and CD8⁺ T cells...
September 16, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28926923/involvement-of-mapk-nf-%C3%AE%C2%BAb-signal-transduction-pathways-camellia-japonica-mitigates-inflammation-and-gastric-ulcer
#3
Md Rashedunnabi Akanda, Byung-Yong Park
Gastric ulcer is an important risk factor for human health globally. Camellia japonica (CJ) is a plant of which the fruits are used as traditional phytomedicine for inflammatory and immunomodulatory diseases; however, the underlying molecular mechanism has not been clarified. The present study aimed to investigate the immunopharmacological activities of Camellia japonica and validate its pharmacological targets. To evaluate the protective roles of Camellia japonica on LPS-induced inflammation in RAW 264.7 cells and HCl/EtOH-induced gastric ulcer in mice; we applied 3-(4,5-dimethyl-thiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT), nitric oxide (NO), reactive oxygen species (ROS), histopathology, malondialdehyde (MDA), quantitative real-time polymerase chain reaction (qPCR), immunohistochemistry (IHC), and western blot analyses...
September 15, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28926719/exosomes-derived-from-embryonic-stem-cells-inhibit-doxorubicin-and-inflammation-induced-pyroptosis-in-muscle-cells
#4
Zahra Tavakoli Dargani, Reetu Singla, Taylor Johnson, Rakesh C Kukreja, Dinender Kumar Singla
Doxorubicin (Dox) is an effective anticancer drug. Unfortunately, it causes cardio and muscle toxicity due to increased oxidative stress and inflammation; however, it remains unknown whether Dox induces "pyroptosis"- an inflammation mediated cell death. We investigated whether Dox induces pyroptosis in mouse soleus muscle (Sol 8) cells in vitro and to show the protective effect of embryonic stem cells-exosomes (ES-exos) on pyroptosis. Doxorubicin and inflammation induced in vitro model was generated. Pyroptosis was confirmed using immunohistochemistry and western blotting of putative markers caspase-1, IL1β and pro-inflammatory cytokine IL-18...
September 19, 2017: Canadian Journal of Physiology and Pharmacology
https://www.readbyqxmd.com/read/28926640/aire-deficient-mice-provide-a-model-of-corneal-and-lacrimal-gland-neuropathy-in-sj%C3%A3-gren-s-syndrome
#5
Feeling Y Chen, Albert Lee, Shaokui Ge, Sara Nathan, Sarah M Knox, Nancy A McNamara
Sjögren's syndrome (SS) is a chronic, autoimmune exocrinopathy that leads to severe dryness of the mouth and eyes. Exocrine function is highly regulated by neuronal mechanisms but little is known about the link between chronic inflammation, innervation and altered exocrine function in the diseased eyes and exocrine glands of SS patients. To gain a better understanding of neuronal regulation in the immunopathogenesis of autoimmune exocrinopathy, we profiled a mouse model of spontaneous, autoimmune exocrinopathy that possess key characteristics of peripheral neuropathy experienced by SS patients...
2017: PloS One
https://www.readbyqxmd.com/read/28926619/liver-x-receptor-activation-promotes-differentiation-of-regulatory-t-cells
#6
Martin Herold, Johanna Breuer, Stephanie Hucke, Percy Knolle, Nicholas Schwab, Heinz Wiendl, Luisa Klotz
The nuclear receptor Liver X Receptor (LXR) is a ligand-activated transcription factor that has been implicated in control of chronic inflammation by downregulating pro-inflammatory T cell responses. An impaired function of regulatory T cells, a subset of CD4+ T cells with a crucial role in maintaining lymphocytes homeostasis and immune regulation, is frequently observed in chronic inflammatory diseases. We observed that pharmacological activation of LXR in T cells not only resulted in a thorough suppression of Th1 and Th17 polarization in vitro, but also significantly induced regulatory T cells (Treg) cell differentiation in a receptor-specific fashion...
2017: PloS One
https://www.readbyqxmd.com/read/28926532/ifn-%C3%AE-guts-neutrophil-mediated-inflammation
#7
Emily A Hemann, Johannes Schwerk, Ram Savan
No abstract text is available yet for this article.
September 19, 2017: Nature Immunology
https://www.readbyqxmd.com/read/28925407/foxc2-coordinates-inflammation-and-browning-of-white-adipose-by-leptin-stat3-prdm16-signal-in-mice
#8
L Gan, Z Liu, F Feng, T Wu, D Luo, C Hu, C Sun
AIMS: The objective of this study is to characterize the relationship between forkhead box C2 protein (Foxc2) and leptin under adipose inflammatory response. METHODS: Lipopolysaccharide (LPS)-induced inflammatory model was conducted. Data from wild-type and ob/ob mice were used to compare the alternative role of leptin on Foxc2-mediated inflammation and browning. Transcriptional regulation and protein-protein interaction were analyzed by bioinformatics and proved by chromatin immunoprecipitation and co-immunoprecipitation experiment...
August 23, 2017: International Journal of Obesity: Journal of the International Association for the Study of Obesity
https://www.readbyqxmd.com/read/28924833/rho-inhibiting-c2in-c3-fusion-toxin-inhibits-chemotactic-recruitment-of-human-monocytes-ex-vivo-and-in-mice-in-vivo
#9
Tobias Martin, Amelie Möglich, Ina Felix, Christina Förtsch, Anne Rittlinger, Annette Palmer, Stephanie Denk, Julian Schneider, Lena Notbohm, Mona Vogel, Hartmut Geiger, Stephan Paschke, Markus Huber-Lang, Holger Barth
Bacterial protein toxins became valuable molecular tools for the targeted modulation of cell functions in experimental pharmacology and attractive therapeutics because of their potent and specific mode of action in human cells. C2IN-C3lim, a recombinant fusion toxin (~50 kDa) of the Rho-inhibiting C3lim from Clostridium (C.) limosum and a non-toxic portion of the C. botulinum C2 toxin (C2IN), is selectively internalized into the cytosol of monocytic cells where C3lim specifically ADP-ribosylates Rho A and -B, thereby inhibiting Rho-mediated signaling...
September 18, 2017: Archives of Toxicology
https://www.readbyqxmd.com/read/28924378/vasopressin-mediates-the-renal-damage-induced-by-limited-fructose-rehydration-in-recurrently-dehydrated-rats
#10
Fernando E García-Arroyo, Edilia Tapia, Mónica G Blas-Marron, Guillermo Gonzaga, Octaviano Silverio, Magdalena Cristóbal, Horacio Osorio, Abraham S Arellano-Buendía, Cecilia Zazueta, Omar Emiliano Aparicio-Trejo, Juan G Reyes-García, José Pedraza-Chaverri, Virgilia Soto, Carlos Roncal-Jiménez, Richard J Johnson, Laura G Sánchez-Lozada
Recurrent dehydration and heat stress cause chronic kidney damage in experimental animals. The injury is exacerbated by rehydration with fructose-containing beverages. Fructose may amplify dehydration-induced injury by directly stimulating vasopressin release and also by acting as a substrate for the aldose reductase-fructokinase pathway, as both of these systems are active during dehydration. The role of vasopressin in heat stress associated injury has not to date been explored. Here we show that the amplification of renal damage mediated by fructose in thermal dehydration is mediated by vasopressin...
2017: International Journal of Biological Sciences
https://www.readbyqxmd.com/read/28923363/anti-inflammatory-effects-of-flavonoids-in-neurodegenerative-disorders
#11
Carmela Spagnuolo, Stefania Moccia, Gian Luigi Russo
Neuroinflammation is one of the main mechanisms involved in the progression of several neurodegenerative diseases, such as Parkinson, Alzheimer, multiple sclerosis, amyotrophic lateral sclerosis and others. The activation of microglia is the main feature of neuroinflammation, promoting the release of pro-inflammatory cytokines and resulting in the progressive neuronal cell death. Natural compounds, such as flavonoids, possess neuroprotective potential probably related to their ability to modulate the inflammatory responses involved in neurodegenerative diseases...
September 7, 2017: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/28923349/katp-channel-block-inhibits-the-toll-like-receptor-2-mediated-stimulation-of-nf-%C3%AE%C2%BAb-by-suppressing-the-activation-of-akt-mtor-jnk-and-p38-mapk
#12
Yoon Jeong Nam, Arum Kim, Min Sung Lee, Dong Suep Sohn, Chung Soo Lee
Changes in the KATP channel activity have been shown to regulate inflammation and immune responses. Using human keratinocytes, we investigated the effect of KATP channel inhibition on inflammatory mediator production in relation to the Toll like receptor-2-mediated-Akt, mTOR and NF-κB pathways, as well as JNK and p38-MAPK, which regulate the transcription genes involved in immune and inflammatory responses. 5-Hydroxydecanoate (a selective KATP channel blocker), glibenclamide (a cell surface and mitochondrial KATP channel inhibitor), the Akt inhibitor, rapamycin, Bay 11-7085 and N-acetylcysteine reduced the lipoteichoic acid- or peptidoglycan-induced production of cytokines and chemokines, and production of reactive oxygen species and increased the levels and activities of Kir 6...
September 15, 2017: European Journal of Pharmacology
https://www.readbyqxmd.com/read/28923202/dietary-linoleic-acid-and-its-oxidized-metabolites-exacerbate-liver-injury-caused-by-ethanol-via-induction-of-hepatic-proinflammatory-response-in-mice
#13
Dennis R Warner, Huilin Liu, Matthew E Miller, Christopher E Ramsden, Bin Gao, Ariel E Feldstein, Susanne Schuster, Craig J McClain, Irina A Kirpich
Alcoholic liver disease is a major human health problem leading to significant morbidity and mortality in the United States and worldwide. Dietary fat plays an important role in alcoholic liver disease pathogenesis. Herein, we tested the hypothesis that a combination of ethanol and a diet rich in linoleic acid (LA) leads to the increased production of oxidized LA metabolites (OXLAMs), specifically 9- and 13-hydroxyoctadecadienoic acids (HODEs), which contribute to a hepatic proinflammatory response exacerbating liver injury...
October 2017: American Journal of Pathology
https://www.readbyqxmd.com/read/28923134/%C3%A3-1-3-galactosyl-o-glycosyl-glycoprotein-%C3%A3-1-6-n-acetylglucosaminyltransferase-3-increases-mcam-stability-which-enhances-s100a8-a9-mediated-cancer-motility
#14
I Wayan Sumardika, Chen Youyi, Eisaku Kondo, Yusuke Inoue, I Made Winarsa Ruma, Hitoshi Murata, Rie Kinoshita, Ken-Ichi Yamamoto, Shuta Tomida, Kazuhiko Shien, Hiroki Satoh, Akira Yamauchi, Junichiro Futami, Endy Widya Putranto, Toshihiko Hibino, Shinichi Toyooka, Masahiro Nishibori, Masakiyo Sakaguchi
We previously identified novel S100A8/A9 receptors, Extracellular Matrix Metalloproteinase Inducer (EMMPRIN), MelanomaCell Adhesion Molecule (MCAM), Activated Leukocyte Cell Adhesion Molecule (ALCAM) and Neuroplastin (NPTN) ß, that are critically involved in S100A8/A9-mediated cancer metastasis and inflammation when expressed at high levels. However, little is known about the presence of any cancerspecific mechanism(s) that modifies these receptors, further inducing upregulation at protein levels without any transcriptional regulation...
September 18, 2017: Oncology Research
https://www.readbyqxmd.com/read/28923043/rosmarinic-acid-induces-rabbit-articular-chondrocyte-differentiation-by-decreases-matrix-metalloproteinase-13-and-inflammation-by-upregulating-cyclooxygenase-2-expression
#15
Seong-Hui Eo, Song Ja Kim
BACKGROUND: Matrix metalloproteinases (MMPs) are known to play an important role in the degradation of the extracellular matrix and the pathological progression of osteoarthritis (OA). The natural polyphenolic compound rosmarinic acid (Ros. A) has been shown to suppress the inhibitory activity of matrix metalloproteinases (MMPs). However, the effects of Ros. A on OA have not been investigated. METHODS: In the current study, primary articular chondrocytes were cultured from rabbit articular cartilage and treated with Ros...
September 18, 2017: Journal of Biomedical Science
https://www.readbyqxmd.com/read/28922728/hepatoprotective-effect-of-fraxin-against-carbon-tetrachloride-induced-hepatotoxicity-in-vitro-and-in-vivo-through-regulating-hepatic-antioxidant-inflammation-response-and-the-mapk-nf-%C3%AE%C2%BAb-signaling-pathway
#16
Xiaofeng Niu, Fang Liu, Weifeng Li, Wenbing Zhi, Qing Yao, Jinmeng Zhao, Guoxiang Yang, Xiumei Wang, Lin Qin, Zehong He
Fraxin, a main active component isolated from Cortex Fraxini, possesses a variety of bioactivities. However, there is a research gap in studies related to the hepatoprotective activity of fraxin against carbon tetrachloride (CCl4)-induced liver damage has been rarely studied. Thus, the purpose of this study is to evaluate the protective effect of fraxin against CCl4-induced liver damage in mice as well as in HepG2 cells, in addition to further improve the underlying mechanisms of hepatoprotective effect for fraxin...
September 14, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28922365/isothiocyanate-enriched-moringa-seed-extract-alleviates-ulcerative-colitis-symptoms-in-mice
#17
Youjin Kim, Alex G Wu, Asha Jaja-Chimedza, Brittany L Graf, Carrie Waterman, Michael P Verzi, Ilya Raskin
Moringa (Moringa oleifera Lam.) seed extract (MSE) has anti-inflammatory and antioxidant activities. We investigated the effects of MSE enriched in moringa isothiocyanate-1 (MIC-1), its putative bioactive, on ulcerative colitis (UC) and its anti-inflammatory/antioxidant mechanism likely mediated through Nrf2-signaling pathway. Dextran sulfate sodium (DSS)-induced acute (n = 8/group; 3% DSS for 5 d) and chronic (n = 6/group; cyclic rotations of 2.5% DSS/water for 30 d) UC was induced in mice that were assigned to 4 experimental groups: healthy control (water/vehicle), disease control (DSS/vehicle), MSE treatment (DSS/MSE), or 5-aminosalicyic acid (5-ASA) treatment (positive control; DSS/5-ASA)...
2017: PloS One
https://www.readbyqxmd.com/read/28921811/a-role-for-the-non-receptor-tyrosine-kinase-ack1-in-tnf-alpha-mediated-apoptosis-and-proliferation-in-human-intestinal-epithelial-caco-2-cells
#18
Xinmei Zhao, Chaolan Lv, Shenbo Chen, Fachao Zhi
The roles of tumor necrosis factor alpha (TNF-alpha) and its mediators in cellular processes related to intestinal diseases remain elusive. In this study, we aimed to determine the biological role of activated Cdc42-associated kinase 1 (ACK1) in TNF-alpha-mediated apoptosis and proliferation in Caco-2 cells. ACK1 expression was knocked down using ACK1-specific siRNAs, and ACK1 activity was disrupted using a small molecule ACK1 inhibitor. The Terminal deoxynucleotidyl transferase biotin-dUTP Nick End Labeling (TUNEL) and the BrdU incorporation assays were used to measure apoptosis and cell proliferation, respectively...
September 16, 2017: Cell Biology International
https://www.readbyqxmd.com/read/28921719/inflammation-alters-ampa-stimulated-calcium-responses-in-dorsal-striatal-d2-but-not-d1-spiny-projection-neurons
#19
Carissa D Winland, Nora Welsh, Alberto Sepulveda-Rodriguez, Stefano Vicini, Kathleen A Maguire-Zeiss
Neuroinflammation precedes neuronal loss in striatal neurodegenerative diseases and can be exacerbated by the release of proinflammatory molecules by microglia. These molecules can affect trafficking of AMPARs. The preferential trafficking of calcium-permeable versus impermeable AMPARs can result in disruptions of [Ca(2+) ]i and alter cellular functions. In striatal neurodegenerative diseases, changes in [Ca(2+) ]i and L-type voltage-gated calcium channels (VGCCs) have been reported. Therefore, the present study sought to determine whether a proinflammatory environment alters AMPA-stimulated [Ca(2+) ]i through calcium-permeable AMPARs and/or L-type VGCCs in dopamine-2 and dopamine-1 expressing striatal spiny projection neurons (D2 and D1 SPNs) in the dorsal striatum...
September 16, 2017: European Journal of Neuroscience
https://www.readbyqxmd.com/read/28921585/allergooncology-opposite-outcomes-of-immune-tolerance-in-allergy-and-cancer
#20
E Jensen-Jarolim, H J Bax, R Bianchini, S Crescioli, T R Daniels-Wells, D Dombrowicz, E Fiebiger, H J Gould, S Irshad, J Janda, D H Josephs, F Levi-Schaffer, L O Mahony, G Pellizzari, M L Penichet, F Redegeld, F Roth-Walter, J Singer, E Untersmayr, L Vangelista, S N Karagiannis
While desired for the cure of allergy, regulatory immune cell subsets and non-classical Th2-biased inflammatory mediators in the tumour microenvironment can contribute to immune suppression and escape of tumours from immunological detection and clearance. A key aim in the cancer field is therefore to design interventions that can break immunological tolerance and halt cancer progression, whereas on the contrary allergen immunotherapy exactly aims to induce tolerance. In this position paper, we review insights on immune tolerance derived from allergy and from cancer inflammation, focusing on what is known about the roles of key immune cells and mediators...
September 16, 2017: Allergy
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