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https://www.readbyqxmd.com/read/28088642/anti-rage-antibody-selectively-blocks-acute-systemic-inflammatory-responses-to-lps-in-serum-liver-csf-and-striatum
#1
Juciano Gasparotto, Camila Tiefensee Ribeiro, Rafael Calixto Bortolin, Henrique Schaan Fernandes, Alexsander Alves Teixeira, Marcelo Otavio Rodrigues Guasselli, Crepin Aziz Jose O Agani, Natália Cabral Souza, Mateus Grings, Guilhian Leipnitz, Henrique Mautone Gomes, Matheus Augusto de Bittencourt Pasquali, Peter R Dunkley, Phillip W Dickson, José Claudio Fonseca Moreira, Daniel Pens Gelain
Systemic inflammation induces transient or permanent dysfunction in the brain by exposing it to soluble inflammatory mediators. The receptor for advanced glycation endproducts (RAGE) binds to distinct ligands mediating and increasing inflammatory processes. In this study we used an LPS-induced systemic inflammation model in rats to investigate the effect of blocking RAGE in serum, liver, cerebrospinal fluid (CSF) and brain (striatum, prefrontal cortex, ventral tegmental area and substantia nigra). Intraperitoneal injection of RAGE antibody (50 μg/kg) was followed after 1h by a single LPS (5 mg/kg) intraperitoneal injection...
January 11, 2017: Brain, Behavior, and Immunity
https://www.readbyqxmd.com/read/28088611/lactobacillus-paracasei-modulates-lps-induced-inflammatory-cytokine-release-by-monocyte-macrophages-via-the-up-regulation-of-negative-regulators-of-nf-kappab-signaling-in-a-tlr2-dependent-manner
#2
Ke-Yi Sun, Dong-Hua Xu, Chao Xie, Susan Plummer, James Tang, Xiao Fan Yang, Xiao Hui Ji
The application of the probiotic lactobacillus is suggested in the treatment of some inflammatory diseases of intestines due to its potential ability to attenuate inflammation. However, the mechanism is not completely understood. In PBMCs, Lactobacillus paracasei (L. Paracasei) down-regulated the LPS-induced production of TNF-α and IL-6. Using a macrophage-like differentiated THP-1 cell line induced by PMA, we investigated the effect of L. paracasei on the production of pro-inflammatory cytokines by monocyte-macrophages...
January 12, 2017: Cytokine
https://www.readbyqxmd.com/read/28088327/cftr-impairment-upregulates-c-src-activity-through-il-1%C3%AE-autocrine-signaling
#3
María Macarena Massip-Copiz, Mariángeles Clauzure, Ángel Gabriel Valdivieso, Tomás Antonio Santa-Coloma
Cystic Fibrosis (CF) is a disease caused by mutations in the cystic fibrosis transmembrane conductance regulator (CFTR) gene. Previously, we found several genes showing a differential expression in CFDE cells (epithelial cells derived from a CF patient). One corresponded to c-Src; its expression and activity was found increased in CFDE cells, acting as a signaling molecule between the CFTR activity and MUC1 overexpression. Here we report that bronchial IB3-1 cells (CF cells) also showed increased c-Src activity compared to 'CFTR-corrected' S9 cells...
January 11, 2017: Archives of Biochemistry and Biophysics
https://www.readbyqxmd.com/read/28088291/bcfa-suppresses-lps-induced-il-8-mrna-expression-in-human-intestinal-epithelial-cells
#4
Y Yan, Z Wang, J Greenwald, K S D Kothapalli, H G Park, R Liu, E Mendralla, P Lawrence, X Wang, J T Brenna
Branched chain fatty acids (BCFA) are components of common food fats and are major constituents of the normal term human newborn GI tract. Polyunsaturated fatty acids (PUFA) have been suggested to reduce the risk and development of inflammatory bowel diseases (IBD); however, little is known about the influence of BCFA on inflammation. We investigated the effect of BCFA on interleukin (IL)-8 and NF-κB production in a human intestinal epithelial cell line (Caco-2). Cells were pre-treated with specific BCFA, or DHA, or EPA, and then activated with lipopolysaccharide (LPS)...
January 2017: Prostaglandins, Leukotrienes, and Essential Fatty Acids
https://www.readbyqxmd.com/read/28087537/effects-of-lactobacillus-plantarum-oll2712-culture-conditions-on-the-anti-inflammatory-activity-for-murine-immune-cells-and-obese-and-type-2-diabetic-mice
#5
T Toshimitsu, S Ozaki, J Mochizuki, K Furuichi, Y Asami
: Studies on the health-promoting effects of lactic acid bacteria (LAB) are numerous, but few provide examples of the relationship between LAB function and culture conditions. We verified the effect of differences in culture conditions on Lactobacillus plantarum OLL2712 (OLL2712) functionality; this strain exhibits anti-inflammatory activity and preventive effects against metabolic disorders. We measured IL-10 and IL-12 production in murine immune cells treated with OLL2712 cells prepared under various culture conditions...
January 13, 2017: Applied and Environmental Microbiology
https://www.readbyqxmd.com/read/28086769/effect-of-ginseng-extract-on-the-tgf-%C3%AE-1-signaling-pathway-in-ccl4-induced-liver-fibrosis-in-rats
#6
Mohamed M Hafez, Sherifa S Hamed, Manal F El-Khadragy, Zeinab K Hassan, Salim S Al Rejaie, Mohamed M Sayed-Ahmed, Naif O Al-Harbi, Khalid A Al-Hosaini, Mohamed M Al-Harbi, Ali R Alhoshani, Othman A Al-Shabanah, Shakir Dekhal Alsharari
BACKGROUND: Liver diseases are major global health problems. Ginseng extract has antioxidant, immune-modulatory and anti-inflammatory activities. This study investigated the effect of ginseng extract on carbon tetrachloride (CCl4)-induced liver fibrosis in rats. METHODS: Male Wistar rats were divided into four groups: control group, ginseng group, CCl4 group and CCl4 + ginseng group. Liver injury was induced by the intraperitoneal (I.P) injection of 3 ml/kg CCl4 (30% in olive oil) weekly for 8 weeks...
January 13, 2017: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/28081153/dermal-%C3%AE-%C3%AE-t-cells-do-not-freely-re-circulate-out-of-skin-and-produce-il-17-to-promote-neutrophil-infiltration-during-primary-contact-hypersensitivity
#7
Xiaodong Jiang, Chang Ook Park, Jenna Geddes Sweeney, Min Jae Yoo, Olivier Gaide, Thomas Seth Kupper
The role of mouse dermal γδ T cells in inflammatory skin disorders and host defense has been studied extensively. It is known that dendritic epidermal T cells (DETC) have a monomorphic γδ T cell receptor (TCR) and reside in murine epidermis from birth. We asked if dermal γδ cells freely re-circulated out of skin, or behaved more like dermal resident memory T cells (TRM) in mice. We found that, unlike epidermal γδ T cells (DETC), dermal γδ cells are not homogeneous with regard to TCR, express the tissue resident T cell markers CD69 and CD103, bear skin homing receptors, and produce IL-17 and IL-22...
2017: PloS One
https://www.readbyqxmd.com/read/28077335/omega-3-fatty-acids-regulate-nlrp3-inflammasome-activation-and-prevent-behavior-deficits-after-traumatic-brain-injury
#8
Chao Lin, Honglu Chao, Zheng Li, Xiupeng Xu, Yinlong Liu, Zhongyuan Bao, Lijun Hou, Yan Liu, Xiaoming Wang, Yongping You, Ning Liu, Jing Ji
Omega-3 fatty acids (ω-3 FAs) attenuate inflammation and improve neurological outcome in response to traumatic brain injury (TBI), but the specific anti-inflammatory mechanisms remain to be elucidated. Here we found that NLRP3 inflammasome and subsequent pro-inflammatory cytokines were activated in human brains after TBI. Rats treated with ω-3 FAs had significantly less TBI-induced caspase-1 cleavage and IL-1β secretion than those with vehicle. G protein-coupled receptor 40 (GPR40) was observed to be involved in this anti-inflammation...
January 8, 2017: Experimental Neurology
https://www.readbyqxmd.com/read/28074895/multi-cellular-natural-killer-nk-cell-clusters-enhance-nk-cell-activation-through-localizing-il-2-within-the-cluster
#9
Miju Kim, Tae-Jin Kim, Hye Mi Kim, Junsang Doh, Kyung-Mi Lee
Multi-cellular cluster formation of natural killer (NK) cells occurs during in vivo priming and potentiates their activation to IL-2. However, the precise mechanism underlying this synergy within NK cell clusters remains unclear. We employed lymphocyte-laden microwell technologies to modulate contact-mediated multi-cellular interactions among activating NK cells and to quantitatively assess the molecular events occurring in multi-cellular clusters of NK cells. NK cells in social microwells, which allow cell-to-cell contact, exhibited significantly higher levels of IL-2 receptor (IL-2R) signaling compared with those in lonesome microwells, which prevent intercellular contact...
January 11, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28074060/s100a8-a9-and-s100a9-reduce-acute-lung-injury
#10
Yuka Hiroshima, Kenneth Hsu, Nicodemus Tedla, Sze Wing Wong, Sharron Chow, Naomi Kawaguchi, Carolyn L Geczy
S100A8 and S100A9 are myeloid cell-derived proteins that are elevated in several types of inflammatory lung disorders. Pro- and anti-inflammatory properties are reported and these proteins are proposed to activate TLR4. S100A8 and S100A9 can function separately, likely through distinct receptors but a systematic comparison of their effects in vivo are limited. Here we assess inflammation in murine lung following S100A9 and S100A8/A9 inhalation. Unlike S100A8, S100A9 promoted mild neutrophil and lymphocyte influx, possibly mediated in part, by increased mast cell degranulation and selective upregulation of some chemokine genes, particularly CXCL-10...
January 11, 2017: Immunology and Cell Biology
https://www.readbyqxmd.com/read/28073413/-cellular-and-molecular-mechanisms-of-anti-inflammatory-effect-of-peroxisome-proliferator-activated-receptor-%C3%AE
#11
M J Jiao, L Zhou, F Ren, Y D Wang, C Shen, Z P Duan, C Y Zhao
Objective: To investigate the cellular and molecular mechanisms of the anti-inflammatory effect of peroxisome proliferator-activated receptor α (PPARα). Methods: Firstly, bone marrow-derived macrophages (BMDMs) were randomly divided into control group, LPS group, WY14643 10 μmol/L group, WY14643 25 μmol/L group, and WY14643 50 μmol/L group using a random number table. Secondly, BMDMs were randomly divided into LPS group, WY14643+LPS group, and 3-MA+WY14643+LPS group. Primary BMDMs were stimulated by LPS (20 ng/ml) to establish the cellular model of inflammation...
December 20, 2016: Zhonghua Gan Zang Bing za Zhi, Zhonghua Ganzangbing Zazhi, Chinese Journal of Hepatology
https://www.readbyqxmd.com/read/28072729/hypertonic-saline-protects-brain-endothelial-cells-against-hypoxia-correlated-to-the-levels-of-estimated-glomerular-filtration-rate-and-interleukin-1%C3%AE
#12
Sheng-Long Chen, Yi-Yu Deng, Qiao-Sheng Wang, Yong-Li Han, Wen-Qiang Jiang, Ming Fang, Bei Hu, Zhi-Xin Wu, Lin-Qiang Huang, Hong-Ke Zeng
OBJECTIVE: The aim of this study was to verify the protective effect of hypertonic saline (HS) on brain endothelial cells under hypoxic conditions and the relevant underlying mechanism. METHODS: bEnd.3 cells were treated with oxygen-glucose deprivation (OGD)-induced injury. To measure HS performance, cell viability was determined using the 3-(4,5-dimethylthiazol-2-yl)-5-(3-carboxymethoxyphenyl)-2-(4-sulfophenyl)-2H-tetrazolium salt assay, and cell apoptosis was assessed by flow cytometry and Terminal deoxynucleotidyl transferase UTP nick-end labeling staining...
January 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28069966/inherited-human-irak-1-deficiency-selectively-impairs-tlr-signaling-in-fibroblasts
#13
Erika Della Mina, Alessandro Borghesi, Hao Zhou, Salim Bougarn, Sabri Boughorbel, Laura Israel, Ilaria Meloni, Maya Chrabieh, Yun Ling, Yuval Itan, Alessandra Renieri, Iolanda Mazzucchelli, Sabrina Basso, Piero Pavone, Raffaele Falsaperla, Roberto Ciccone, Rosa Maria Cerbo, Mauro Stronati, Capucine Picard, Orsetta Zuffardi, Laurent Abel, Damien Chaussabel, Nico Marr, Xiaoxia Li, Jean-Laurent Casanova, Anne Puel
Most members of the Toll-like receptor (TLR) and interleukin-1 receptor (IL-1R) families transduce signals via a canonical pathway involving the MyD88 adapter and the interleukin-1 receptor-associated kinase (IRAK) complex. This complex contains four molecules, including at least two (IRAK-1 and IRAK-4) active kinases. In mice and humans, deficiencies of IRAK-4 or MyD88 abolish most TLR (except for TLR3 and some TLR4) and IL-1R signaling in both leukocytes and fibroblasts. TLR and IL-1R responses are weak but not abolished in mice lacking IRAK-1, whereas the role of IRAK-1 in humans remains unclear...
January 9, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28068647/berberine-an-isoquinoline-alkaloid-suppresses-txnip-mediated-nlrp3-inflammasome-activation-in-msu-crystal-stimulated-raw-264-7-macrophages-through-the-upregulation-of-nrf2-transcription-factor-and-alleviates-msu-crystal-induced-inflammation-in-rats
#14
Palani Dinesh, MahaboobKhan Rasool
The current study was designed to investigate the therapeutic potential of berberine on monosodium urate (MSU) crystal stimulated RAW 264.7 macrophages and in MSU crystal induced rats. Our results indicate that berberine (25, 50 and 75μM) suppressed the levels of pro-inflammatory cytokines (interleukin-1beta (IL-1β) and tumor necrosis factor alpha (TNFα)) and intracellular reactive oxygen species in MSU crystal stimulated RAW 264.7 macrophages. The mRNA expression levels of IL-1β, caspase 1, nucleotide-binding oligomerization domain-like receptor pyrin domain containing 3 (NLRP3), thioredoxin interacting protein (TXNIP) and kelch-like ECH-associated protein 1 (Keap1) were found downregulated with the upregulation of nuclear factor erythroid-2-related factor 2 (Nrf2) transcription factor and its associated anti-oxidant enzymes: Heme oxygenase I (HO-1), superoxide dismutase (SOD1), glutathione peroxidase (GPx), NADPH quinone oxidoreductase-1 (NQO1) and catalase (CAT) in MSU crystal stimulated RAW 264...
January 6, 2017: International Immunopharmacology
https://www.readbyqxmd.com/read/28066584/overexpression-of-farnesoid-x-receptor-in-small-airways-contributes-to-epithelial-to-mesenchymal-transition-and-cox-2-expression-in-chronic-obstructive-pulmonary-disease
#15
Bi Chen, Wen-Jie You, Shan Xue, Hui Qin, Xu-Ji Zhao, Miao Zhang, Xue-Qing Liu, Shu-Yang Zhu, Han-Dong Jiang
BACKGROUND: Epithelial-mesenchymal transition (EMT) and cyclooxygenase-2 (COX-2) contribute to airway remodelling and inflammation in chronic obstructive pulmonary disease (COPD). Recent data suggest that the farnesoid X receptor (FXR), a nuclear receptor traditionally considered as bile acid-activated receptor, is also expressed in non-classical bile acids target tissues with novel functions beyond regulating bile acid homeostasis. This study aimed to investigate the potential role of FXR in the development of COPD, as well as factors that affect FXR expression...
November 2016: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/28065587/ffpm-a-pde4-inhibitor-reverses-learning-and-memory-deficits-in-app-ps1-transgenic-mice-via-camp-pka-creb-signaling-and-anti-inflammatory-effects
#16
Haibiao Guo, Yufang Cheng, Canmao Wang, Jingang Wu, Zhengqiang Zou, Bo Niu, Hui Yu, Haitao Wang, Jiangping Xu
Thus far, phosphodiesterase-4 (PDE4) inhibitors have not been approved for application in Alzheimer's disease (AD) in a clinical setting due to severe side effects, such as nausea and vomiting. In this study, we investigated the effect of FFPM, a novel PDE4 inhibitor, on learning and memory abilities, as well as the underlying mechanism in the APP/PS1 mouse model of AD. Pharmacokinetic studies have revealed that FFPM efficiently permeates into the brain, and reached peak values in plasma 2 h after orally dosing...
January 6, 2017: Neuropharmacology
https://www.readbyqxmd.com/read/28065450/the-effects-of-increased-heme-oxygenase-1-on-the-lymphoproliferative-response-in-dogs-with-visceral-leishmaniasis
#17
Breno Fernando Martins de Almeida, Kathlenn Liezbeth Oliveira Silva, Vanessa Marim Chiku, Aline Aparecida Correa Leal, Gabriela Lovizutto Venturin, Luis Gustavo Narciso, Maria Fernanda Cereijido Bersni Fink, Flavia de Rezende Eugênio, Paulo Sergio Patto Dos Santos, Paulo Cesar Ciarlini, Valéria Marçal Felix de Lima
Canine visceral leishmaniasis (CVL) is known to affect the cellular immunity of infected dogs, through impairing lymphoproliferation and microbicidal mechanisms. This study examined heme oxygenase-1 (HO-1) and its metabolites, oxidative stress and IL-10 levels in CVL and investigated correlations between these parameters. Additionally, the effects of HO-1 inhibition on the lymphoproliferative response and cytokine production in lymph node cells (LNCs) from infected dogs were evaluated. Forty-four dogs, 24 controls and 20 dogs with CVL were selected...
December 30, 2016: Immunobiology
https://www.readbyqxmd.com/read/28063952/transcriptome-profiling-of-spleen-provides-insights-into-the-antiviral-mechanism-in-schizothorax-prenanti-after-poly-i-c-challenge
#18
Xiaogang Du, Yunkun Li, Dong Li, Fangliang Lian, Shiyong Yang, Jiayun Wu, Hanmei Liu, Guixian Bu, Fengyan Meng, Xiaohan Cao, Xianyin Zeng, Huaiyu Zhang, Zhiyu Chen
Schizothorax prenanti (S. prenanti) is an important economical cold-water fish species in southwestern China, but it is susceptible to various pathogens infection. In order to clearly elucidate the antiviral mechanism, in this study, we have analyzed the transcriptome of S. prenanti spleen after challenge with the virus mimic, poly (I:C) (pIC), using next generation sequencing technology (RNA-seq). A total of 313 differential expressed genes (DEGs) in spleen at 24 h were obtained after pIC treatment, including 268 significantly up-regulated unigenes (fold change > 2) and 45 significantly down-regulated unigenes (fold change > 2)...
January 4, 2017: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/28063927/deubiquitinase-usp12-promotes-lps-induced-macrophage-responses-through-inhibition-of-i%C3%AE%C2%BAb%C3%AE
#19
Tapan Kumar Singh Nayak, Neeraja P Alamuru-Yellapragada, Kishore V L Parsa
Post translational modifications, ubiquitination and its reversal by deubiquitination play an important role in regulating innate immune system. USP12 is a poorly studied deubiquitinase reported to regulate T-cell receptor signaling however the functional role of USP12 in macrophages, the principal architects of inflammation, is unknown. Thus, in this study we probed the involvement of USP12 in macrophage mediated inflammatory responses using bacterial endotoxin, LPS, as the model system. Here, we observed that the expression of USP12 was altered in time dependent manner in LPS stimulated RAW 264...
January 4, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28063004/tubulin-alpha-8-is-expressed-in-hepatic-stellate-cells-and-is-induced-in-transformed-hepatocytes
#20
Lisa Rein-Fischboeck, Rebekka Pohl, Elisabeth M Haberl, Sebastian Zimny, Maximilian Neumann, Kristina Eisinger, Thomas S Weiss, Sabrina Krautbauer, Christa Buechler
Tubulin alpha 8 (TUBA8) is highly abundant in murine liver tumors suggesting a role in hepatocellular carcinoma (HCC). Non-alcoholic steatohepatitis (NASH) is a risk factor for HCC. In mice that are fed with a methionine-choline deficient diet for two weeks to induce advanced murine NASH, we do see increased hepatic levels of TUBA8 protein. In animals given a high-fat diet for 14 weeks or an atherogenic diet for 12 weeks, hepatic TUBA8 is unchanged. TUBA8 is highly expressed in human hepatic stellate cells (HSC) and co-localizes with the HSC marker desmin in the murine liver...
January 7, 2017: Molecular and Cellular Biochemistry
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