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https://www.readbyqxmd.com/read/29792201/cerium-dioxide-nanoparticles-exacerbate-house-dust-mite-induced-type-ii-airway-inflammation
#1
Kirsty Meldrum, Sarah B Robertson, Isabella Römer, Tim Marczylo, Lareb S N Dean, Andrew Rogers, Timothy W Gant, Rachel Smith, Terry D Tetley, Martin O Leonard
BACKGROUND: Nanomaterial inhalation represents a potential hazard for respiratory conditions such as asthma. Cerium dioxide nanoparticles (CeO2 NPs) have the ability to modify disease outcome but have not been investigated for their effect on models of asthma and inflammatory lung disease. The aim of this study was to examine the impact of CeO2 NPs in a house dust mite (HDM) induced murine model of asthma. RESULTS: Repeated intranasal instillation of CeO2 NPs in the presence of HDM caused the induction of a type II inflammatory response, characterised by increased bronchoalveolar lavage eosinophils, mast cells, total plasma IgE and goblet cell metaplasia...
May 23, 2018: Particle and Fibre Toxicology
https://www.readbyqxmd.com/read/29790398/acute-inflammatory-biomarker-responses-to-diffuse-traumatic-brain-injury-in-the-rat-monitored-by-a-novel-microdialysis-technique
#2
Fredrik Clausen, Niklas Marklund, Lars Hillered
Neuroinflammation is a major contributor to the progressive brain injury process induced by traumatic brain injury (TBI), and may play an important role in the pathophysiology of axonal injury. The immediate neuroinflammatory cascade cannot be characterized in the human setting. Therefore, we used the midline fluid percussion injury model of diffuse TBI in rats and a novel microdialysis (MD) method providing stable diffusion-driven biomarker sampling. Immediately post-injury, bilateral amphiphilic tri-block polymer coated MD probes (100 kDa cut off membrane) were inserted and perfused with Dextran 500 kDa-supplemented artificial CSF to optimize protein capture...
May 23, 2018: Journal of Neurotrauma
https://www.readbyqxmd.com/read/29777718/malnutrition-is-associated-with-diminished-baseline-and-mycobacterial-antigen-stimulated-chemokine-responses-in-latent-tuberculosis-infection
#3
Rajamanickam Anuradha, Saravanan Munisankar, Yukthi Bhootra, Nathella Pavan Kumar, Chandrakumar Dolla, Subash Babu
OBJECTIVES: Previous studies have demonstrated a diminution in the baseline and mycobacterial antigen - specific cytokines in low body mass index (LBMI) individuals with latent tuberculosis infection (LTBI). We hypothesized that LBMI might be also associated with alteration in the baseline and antigen - stimulated levels of chemokines in LTBI. METHODS: To test this hypothesis, we examined baseline, TB- antigen and mitogen stimulated levels of chemokines in these individuals and compared them with those with LTBI and normal BMI (NBMI)...
May 16, 2018: Journal of Infection
https://www.readbyqxmd.com/read/29740431/omics-based-approach-reveals-complement-mediated-inflammation-in-chronic-lymphocytic-inflammation-with-pontine-perivascular-enhancement-responsive-to-steroids-clippers
#4
Morten Blaabjerg, Anne Louise Hemdrup, Lylia Drici, Klemens Ruprecht, Peter Garred, Romana Höftberger, Bjarne W Kristensen, Daniel Kondziella, Tobias Sejbaek, Soren W Hansen, Helle H Nielsen, Pia Jensen, Morten Meyer, Friedemann Paul, Hans Lassmann, Martin R Larsen, Zsolt Illes
Objective: Chronic lymphocytic inflammation with pontine perivascular enhancement responsive to steroids (CLIPPERS) is a rare syndrome with relapsing brainstem/cerebellar symptoms. To examine the pathogenic processes and investigate potential biomarkers, we analyzed combined materials of brain and cerebrospinal fluid (CSF) by comprehensive methodologies. Materials and methods: To identify major pathways of perivascular inflammation in CLIPPERS, we first compared the CSF proteome ( n  = 5) to a neurodegenerative condition, Alzheimer's disease (AD, n  = 5)...
2018: Frontiers in Immunology
https://www.readbyqxmd.com/read/29726281/exopolysaccharide-from-bifidobacterium-longum-subsp-longum-35624%C3%A2-modulates-murine-allergic-airway-responses
#5
E Schiavi, S Plattner, N Rodriguez-Perez, W Barcik, R Frei, R Ferstl, M Kurnik-Lucka, D Groeger, R Grant, J Roper, F Altmann, D van Sinderen, C A Akdis, L O'Mahony
Interactions between the host and the microbiota are thought to significantly influence immunological tolerance mechanisms at mucosal sites. We recently described that the loss of an exopolysaccharide (EPS) from Bifidobacterium longum 35624™ eliminated its protective effects in colitis and respiratory allergy murine models. Our goal was to investigate the immune response to purified EPS from B. longum 35624, determine if it has protective effects within the lung and identify the protective mechanisms. Isolated EPS from B...
May 4, 2018: Beneficial Microbes
https://www.readbyqxmd.com/read/29698614/the-expression-and-functional-analysis-of-cst1-in-intractable-nasal-polyps
#6
Yukinori Kato, Tetsuji Takabayashi, Masafumi Sakashita, Yoshimasa Imoto, Takahiro Tokunaga, Takahiro Ninomiya, Taiyo Morikawa, Kanako Yoshida, Emiko Noguchi, Shigeharu Fujieda
This study found Cystatin SN (CST1), a type 2 cystatin subfamily member, to be highly expressed in nasal polyps from patients with intractable chronic rhinosinusitis with nasal polyps (CRSwNP), using a whole transcript analysis with next-generation sequencing. Eosinophilic chronic rhinosinusitis (ECRS) involves nasal polyps that are refractory and recurrent immediately after endoscopic sinus surgery (ESS). We hypothesized that CST1 may contribute to the pathogenesis of ECRS. The expression of CST1 in nasal polyps from patients with ECRS was examined by mRNA expression levels, using real-time PCR and immunohistochemistry...
April 26, 2018: American Journal of Respiratory Cell and Molecular Biology
https://www.readbyqxmd.com/read/29665127/proteomic-analysis-of-serum-and-sputum-analytes-distinguishes-controlled-and-poorly-controlled-asthmatics
#7
Marion T Kasaian, Julie Lee, Agnes Brennan, Spencer I Danto, Kendall E Black, Lori Fitz, Anne E Dixon
BACKGROUND: A major goal of asthma therapy is to achieve disease control, with maintenance of lung function, reduced need for rescue medication, and prevention of exacerbation. Despite current standard of care, up to 70% of patients with asthma remain poorly controlled. Analysis of serum and sputum biomarkers could offer insights into parameters associated with poor asthma control. OBJECTIVE: To identify signatures as determinants of asthma disease control, we performed proteomics using Olink proximity extension analysis...
April 17, 2018: Clinical and Experimental Allergy: Journal of the British Society for Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/29660515/aspergillus-fumigatus-viability-drives-allergic-responses-to-inhaled-conidia
#8
Ajay P Nayak, Tara L Croston, Angela R Lemons, W T Goldsmith, Nikki B Marshall, Michael L Kashon, Dori R Germolec, Donald H Beezhold, Brett J Green
BACKGROUND: Aspergillus fumigatus induced allergic airway disease has been shown to involve conidial germination in vivo but the immunological mechanisms remain uncharacterized. OBJECTIVE: A subchronic murine exposure model was used to examine the immunological mediators that are regulated in response to either culturable or non-culturable A. fumigatus conidia. METHODS: Female B6C3F1/N mice were repeatedly dosed via inhalation with 1 x 105 viable or heat inactivated conidia (HIC), twice a week for 13 weeks (26 exposures)...
April 13, 2018: Annals of Allergy, Asthma & Immunology
https://www.readbyqxmd.com/read/29601110/expression-of-novel-locgef-isoforms-of-arhgef18-in-eosinophils
#9
Keren B Turton, Emily M Wilkerson, Alex S Hebert, Frances J Fogerty, Hazel M Schira, Fady E Botros, Joshua J Coon, Deane F Mosher
Genomic, transcriptomic and proteomic databases indicate that the N-terminal 322 residues encoded by the presumptive LOC100996504 gene, which is adjacent to the ARHGEF18 guanine nucleotide exchange factor gene on chromosome 19, constitute the N-terminal portion of a 1361-residue isoform of ARHGEF18, dubbed LOCGEF-X3. LOCGEF-X3 arises from the use of a leukocyte-specific alternative transcriptional start site and splicing that bypasses the initial noncoding exon of the canonical 1015-residue ARHGEF18 isoform, p114...
March 30, 2018: Journal of Leukocyte Biology
https://www.readbyqxmd.com/read/29562767/synovial-fluid-eotaxin-1-levels-may-reflect-disease-progression-in-primary-knee-osteoarthritis-among-elderly-han-chinese-a-cross-sectional-study
#10
Bei Li, Yi-Li Zhang, Shou-Yi Yu
Objective The CC chemokine family member eotaxin-1, also named chemokine C-C motif ligand 11 (CCL11), has been detected in knee osteoarthritis (OA) and could induce breakdown of cartilage matrix. This study was performed to investigate the plasma and synovial fluid eotaxin-1 levels with the disease progression in elderly Han Chinese with primary knee OA. Design A total of 143 elderly primary knee OA patients and 135 healthy controls were enrolled in the study. The Western Ontario and McMaster Universities Arthritis Index (WOMAC) was performed to evaluate the clinical severity...
March 1, 2018: Cartilage
https://www.readbyqxmd.com/read/29555502/ameliorating-effect-of-ti-1-162-a-hydroxyindenone-derivative-against-tnbs-induced-rat-colitis-is-mediated-through-suppression-of-rip-ask-1-mapk-signaling
#11
Pallavi Gurung, Suhrid Banskota, Nikita Katila, Jaya Gautam, Tara Man Kadayat, Dong-Young Choi, Eung Seok Lee, Tae Cheon Jeong, Jung-Ae Kim
The pathogenesis of inflammatory bowel disease (IBD) is associated with production of immense pro-inflammatory cytokines including TNF-α. Once generated, TNF-α stimulates production of various pro-inflammatory cytokines and disrupts mucosal barrier by inducing inflamed mucosal epithelial cell death. In the present study, we investigated inhibitory effects of TI-1-162, a hydroxyindenone derivative, against TNF-α-induced and TNBS-induced colon inflammation. TI-1-162 showed inhibitory effect on the TNF-α-induced adhesion of U937 monocytic cells to HT-29 colonic epithelial cells (IC50 = 0...
May 15, 2018: European Journal of Pharmacology
https://www.readbyqxmd.com/read/29533121/extracellular-vesicles-mediate-low-dose-ionizing-radiation-induced-immune-and-inflammatory-responses-in-the-blood
#12
Tünde Szatmári, Eszter Persa, Enikő Kis, Anett Benedek, Rita Hargitai, Géza Sáfrány, Katalin Lumniczky
PURPOSE: Radiation-induced bystander effects (RIBE) imply the involvement of complex signaling mechanisms, which can be mediated by extracellular vesicles (EVs). Using an in vivo model, we investigated EV-transmitted RIBE in blood plasma and radiation effects on plasma EV miRNA profiles. MATERIALS AND METHODS: C57Bl/6 mice were total-body irradiated with 0.1 and 2 Gy, bone marrow-derived EVs were isolated, and injected systemically into naive, 'bystander' animals...
March 29, 2018: International Journal of Radiation Biology
https://www.readbyqxmd.com/read/29511710/distinct-ccl2-ccl5-ccl11-ccl27-il-17-il-6-bdnf-serum-profiles-correlate-to-different-job-stress-outcomes
#13
Alessio Polacchini, Damiano Girardi, Alessandra Falco, Nunzia Zanotta, Manola Comar, Nicola Alberto De Carlo, Enrico Tongiorgi
Chronic psychosocial stress at workplace is an important factor in the development of physical and mental illness. Objective biological measures of chronic stress are still lacking, but inflammatory response and growth factors are increasingly considered as potential stress biomarkers. Therefore, we investigated the relationship between psychophysical strain and serum levels of 48 chemokines, cytokines and growth factors measured using a multiplex immunoassay, and serum brain-derived neurotrophic factor (BDNF) measured by ELISA...
February 2018: Neurobiology of Stress
https://www.readbyqxmd.com/read/29499727/distinct-alterations-of-cd68-cd163-m2-like-macrophages-and-myeloid-derived-suppressor-cells-in-newly-diagnosed-primary-immune-thrombocytopenia-with-or-without-cr-after-high-dose-dexamethasone-treatment
#14
Xia Shao, Boting Wu, Luya Cheng, Feng Li, Yanxia Zhan, Chanjuan Liu, Lili Ji, Zhihui Min, Yang Ke, Lihua Sun, Hao Chen, Yunfeng Cheng
BACKGROUND: Although impaired myeloid-derived suppressor cells (MDSCs) recently have been studied in immune thrombocytopenia (ITP), another myeloid-derived cell population signified as M2 macrophages has not been investigated properly in ITP patients. In the present study, we intended to determine the features of circulating M2-like macrophages, to examine its relationship with MDSCs, and to explore their prognostic values in ITP. METHODS: Peripheral blood mononuclear cells from healthy controls and primary ITP patients were isolated to test the circulating M2-like macrophages and MDSCs...
March 2, 2018: Journal of Translational Medicine
https://www.readbyqxmd.com/read/29497397/elevated-plasma-chemokines-for-eosinophils-in-neuromyelitis-optica-spectrum-disorders-during-remission
#15
Yanping Tong, Tao Yang, Jingwen Wang, Tianyou Zhao, Lei Wang, Yuezhi Kang, Cuicui Cheng, Yongping Fan
Background: A prominent pathological feature of neuromyelitis optica spectrum disorders (NMOSD) is markedly greater eosinophilic infiltration than that seen in other demyelinating diseases, like multiple sclerosis (MS). Eosinophils express the chemokine receptor CCR3, which is activated by eotaxins (CCL11/eotaxin-1, CCL24/eotaxin-2, CCL26/eotaxin-3) and CCL13 [monocyte chemoattractant protein (MCP)-4]. Moreover, CCL13 is part of the chemokine set that activates CCR2. The present study aimed to evaluate plasma levels of eotaxins (CCL11, CCL24, and CCL26) and MCPs (CCL13, CCL2, CCL8, and CCL7) in patients with NMOSD during remission...
2018: Frontiers in Neurology
https://www.readbyqxmd.com/read/29477870/association-of-ccl11-promoter-polymorphisms-with-schizophrenia-in-a-korean-population
#16
Won Sub Kang, Young Jong Kim, Hae Jeong Park, Su Kang Kim, Jong-Woo Paik, Jong Woo Kim
BACKGROUND: Immunological alterations and dysregulation of the inflammatory response have been suggested to play a crucial role in schizophrenia pathophysiology. Growing evidence supports the involvement of chemokines in brain development, thus many chemokines have been studied in relation with schizophrenia. The C-C motif chemokine ligand 11 (CCL11) has been shown to be related with synaptic plasticity and neurogenesis. Moreover, altered levels of CCL11 have been observed in schizophrenia patients...
May 20, 2018: Gene
https://www.readbyqxmd.com/read/29467297/eosinophil-depletion-suppresses-radiation-induced-small-intestinal-fibrosis
#17
Naoki Takemura, Yosuke Kurashima, Yuki Mori, Kazuki Okada, Takayuki Ogino, Hideki Osawa, Hirosih Matsuno, Lamichhane Aayam, Satoshi Kaneto, Eun Jeong Park, Shintaro Sato, Kouta Matsunaga, Yusuke Tamura, Yasuo Ouchi, Yutaro Kumagai, Daichi Kobayashi, Yutaka Suzuki, Yoshichika Yoshioka, Junichi Nishimura, Masaki Mori, Ken J Ishii, Mark E Rothenberg, Hiroshi Kiyono, Shizuo Akira, Satoshi Uematsu
Radiation-induced intestinal fibrosis (RIF) is a serious complication after abdominal radiotherapy for pelvic tumor or peritoneal metastasis. Herein, we show that RIF is mediated by eosinophil interactions with α-smooth muscle actin-positive (α-SMA+ ) stromal cells. Abdominal irradiation caused RIF especially in the submucosa (SM) of the small intestine, which was associated with the excessive accumulation of eosinophils in both human and mouse. Eosinophil-deficient mice showed markedly ameliorated RIF, suggesting the importance of eosinophils...
February 21, 2018: Science Translational Medicine
https://www.readbyqxmd.com/read/29434856/high-fat-diet-induced-adipokine-and-cytokine-alterations-promote-the-progression-of-prostate-cancer-in-vivo-and-in-vitro
#18
Meng-Bo Hu, Hua Xu, Wen-Hui Zhu, Pei-De Bai, Ji-Meng Hu, Tian Yang, Hao-Wen Jiang, Qiang Ding
High-fat diet (HFD) -induced obesity is associated with more aggressive and lethal prostate cancer (PCa) in males, although the exact underlying mechanisms remain unclear. In the present study, transgenic adenocarcinoma of mouse prostate (TRAMP) models fed on an HFD (40% fat) or a control diet (CD; 16% fat) were generated, and cancer differentiation, local invasion and metastasis were compared at 20, 24 and 28 weeks. Mouse sera from each group were collected, and adipokines and cytokines were measured using multiplex immunoassays...
February 2018: Oncology Letters
https://www.readbyqxmd.com/read/29407576/the-genes-involved-in-asthma-with-the-treatment-of-human-embryonic-stem-cell-derived-mesenchymal-stem-cells
#19
Yong-Dong Lin, Xing-Liang Fan, Hong Zhang, Shu-Bin Fang, Cheng-Lin Li, Meng-Xia Deng, Zi-Li Qin, Ya-Qi Peng, Hong-Yu Zhang, Qing-Ling Fu
BACKGROUND: Asthma is affecting more than 300 million people worldwide, which represents the most common chronic disease among children. We previously found that mesenchymal stem cells (MSCs) derived from induced pluripotent stem cells (iPSCs) modulated the immune response on Th2-mediated asthma in vivo and in vitro. This study further evaluated the immunomodulatory effects of MSCs from human embryonic stem cells (hESCs) on asthma. METHODS: Multipotent hESC-MSCs were obtained using a feeder-free method...
March 2018: Molecular Immunology
https://www.readbyqxmd.com/read/29371606/assessment-of-suitable-reference-genes-for-rt-qpcr-studies-in-chronic-rhinosinusitis
#20
Tsuguhisa Nakayama, Naoko Okada, Mamoru Yoshikawa, Daiya Asaka, Akihito Kuboki, Hiromi Kojima, Yasuhiro Tanaka, Shin-Ichi Haruna
Reverse transcription-quantitative polymerase chain reaction is a valuable and reliable method for gene quantification. Target gene expression is usually quantified by normalization using reference genes (RGs), and accurate normalization is critical for producing reliable data. However, stable RGs in nasal polyps and sinonasal tissues from patients with chronic rhinosinusitis (CRS) have not been well investigated. Here, we used a two-stage study design to identify stable RGs. We assessed the stability of 15 commonly used candidate RGs using five programs-geNorm, NormFinder, BestKeeper, ΔCT, and RefFinder...
January 25, 2018: Scientific Reports
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