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Inflammatory factors

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https://www.readbyqxmd.com/read/29149781/macrophages-from-behcet-s-disease-patients-express-decreased-level-of-aryl-hydrocarbon-receptor-ahr-mrna
#1
Mohammad Taghi Palizgir, Maryam Akhtari, Mahdi Mahmoudi, Shayan Mostafaei, Alireza Rezaeimanesh, Massoomeh Akhlaghi, Farhad Shahram
Aryl hydrocarbon receptor (AHR) is a ligand-activated transcription factor, connecting environmental stimulators with the immune system. M1 macrophages are a part of immune system that contribute to the inflammatory events in the pathogenesis of Behcet's disease (BD). The effect of AHR on the macrophages in BD patients is still unclear. In this study, we investigated the mRNA expression of AHR in the monocyte-derived and M1 macrophages in active BD patients in comparison to healthy controls. Isolated monocytes from 10 healthy controls and 10 active BD patients were differentiated to macrophages by macrophage-colony stimulating factor (M-CSF) for 7 days...
October 2017: Iranian Journal of Allergy, Asthma, and Immunology
https://www.readbyqxmd.com/read/29149778/the-changes-of-th17-treg-and-related-cytokines-il-17-il-23-il-10-and-tgf-%C3%AE-in-respiratory-syncytial-virus-bronchiolitis-rat-model
#2
Meng Gao, Liang-Xiao Liu, Fu-Ling Wu, Xuejing Zhang, Ying-Ying Li, Tao Shi, De-Zhi Li, Ting-Ting Han
Respiratory syncytial virus (RSV) is the leading cause of bronchiolitis and hospitalization that lead to high morbidity and mortality among young infants. T helper 17 (Th17) cells and regulatory T cells (Tregs) play essential roles in the pathogenesis of autoimmune, cancer, and inflammatory diseases. However, whether changes in T-cell subsets are related to the systemic immune responses in RSV-caused bronchiolitis merit further investigation. Three-week-old Sprague Dawley (SD) rats were randomly divided into the normal control (NC) and RSV bronchiolitis (RSV-B) groups...
October 2017: Iranian Journal of Allergy, Asthma, and Immunology
https://www.readbyqxmd.com/read/29149705/toll-like-receptor-4-deficiency-increases-resistance-in-sepsis-induced-immune-dysfunction
#3
Chao Cao, Yanfen Chai, Songtao Shou, Jun Wang, Ying Huang, Tao Ma
Sepsis constitutes a serious life-threatening syndrome associated with complications of deregulated inflammatory response against endotoxin/lipopolysaccharide (LPS)-mediated severe infection. Toll-like receptor 4 (TLR4) plays a critical role in the activation of innate immunity through recognition of LPS. However, the impact of TLR4 signaling on the development of sepsis-induced immune dysfunction remains unclear. The aim of this study was to investigate the effect of TLR4 on regulatory T cells (Tregs) and its potential mechanism...
November 14, 2017: International Immunopharmacology
https://www.readbyqxmd.com/read/29149703/quercetin-attenuates-collagen-induced-arthritis-by-restoration-of-th17-treg-balance-and-activation-of-heme-oxygenase-1-mediated-anti-inflammatory-effect
#4
Yan Yang, Xu Zhang, Min Xu, Xin Wu, Feipeng Zhao, Chengzhi Zhao
Quercetin (QU) has been shown obvious anti-arthritic property in pre-clinical studies or clinical studies. Howbeit, the underlying mechanism of it is still not revealed distinctly and should be gotten further insight into. QU at a dosage of 150 mg/kg was administered orally in collagen-induced arthritis rats and then the clinical symptoms were monitored. The protein levels of Th17/Treg-related cytokines were determined by ELISA, and the mRNA levels of cytokines and transcription factors associated with the Th17 and Treg phenotypes were evaluated by real-time PCR, the proportions of Th17 and Treg cells were assessed by flow cytometry...
November 14, 2017: International Immunopharmacology
https://www.readbyqxmd.com/read/29149667/tumor-acidosis-and-hypoxia-differently-modulate-the-inflammatory-program-measurements-in-vitro-and-in-vivo
#5
Anne Riemann, Sarah Reime, Oliver Thews
Inflammatory mediators produced by the tumor cells are of importance for immune response but also for malignant progression. The aim of the study was to analyze the expression of monocyte chemoattractant protein-1, interleukin-6 (IL-6), tumor necrosis factor-α, inducible isoform of nitric oxide synthase (iNOS), cyclooxygenase-2, and osteopontin in vitro in two different tumor cell lines under hypoxia (pO2≈1.5 mmHg) and/or acidosis (pH=6.6) for up to 24 hours since hypoxia and acidosis are common characteristics of solid tumors...
November 14, 2017: Neoplasia: An International Journal for Oncology Research
https://www.readbyqxmd.com/read/29149648/dried-plum-alleviates-symptoms-of-inflammatory-arthritis-in-tnf-transgenic-mice
#6
Faryal Mirza, Joseph Lorenzo, Hicham Drissi, Francis Y Lee, Do Y Soung
Dried plum (DP), a rich source of polyphenols has been shown to have bone-preserving properties in both animal models of osteoporosis and postmenopausal women. We evaluated if DP alleviated the destruction of joints in transgenic mice (TG) that overexpress human tumor necrosis factor (TNF), a genetic model of rheumatoid arthritis (RA). A four-week treatment of 20% DP diet in TG slowed the onset of arthritis and reduced bone erosions in the joints compared to TG on a regular diet. This was associated with fewer tartrate-resistant acid phosphatase (TRAP) positive cells, suggesting decreased osteoclastogenesis...
October 16, 2017: Journal of Nutritional Biochemistry
https://www.readbyqxmd.com/read/29149604/nrf1-is-an-er-membrane-sensor-that-is-central-to-cholesterol-homeostasis
#7
Scott B Widenmaier, Nicole A Snyder, Truc B Nguyen, Alessandro Arduini, Grace Y Lee, Ana Paula Arruda, Jani Saksi, Alexander Bartelt, Gökhan S Hotamisligil
Cholesterol is a critical nutrient requiring tight constraint in the endoplasmic reticulum (ER) due to its uniquely challenging biophysical properties. While the mechanisms by which the ER defends against cholesterol insufficiency are well described, it remains unclear how the ER senses and effectively defends against cholesterol excess. Here, we identify the ER-bound transcription factor nuclear factor erythroid 2 related factor-1, Nrf1/Nfe2L1, as a critical mediator of this process. We show that Nrf1 directly binds to and specifically senses cholesterol in the ER through a defined domain and that cholesterol regulates Nrf1 turnover, processing, localization, and activity...
November 16, 2017: Cell
https://www.readbyqxmd.com/read/29149416/history-of-histamine-releasing-factor-hrf-translationally-controlled-tumor-protein-tctp-including-a-potential-therapeutic-target-in-asthma-and-allergy
#8
Susan M MacDonald
Histamine-releasing factor (HRF) also known as translationally controlled tumor protein (TCTP) is a highly conserved, ubiquitous protein that has both intracellular and extracellular functions. Here we will highlight the subcloning of the molecule, its clinical implications, as well as an inducible-transgenic mouse. Particular attention will be paid to its extracellular functioning and its potential role as a therapeutic target in asthma and allergy. The cells and the cytokines that are produced when stimulated or primed by HRF/TCTP will be detailed as well as the downstream signaling pathway that HRF/TCTP elicits...
2017: Results and Problems in Cell Differentiation
https://www.readbyqxmd.com/read/29149330/s101-an-inhibitor-of-proliferating-t-cells-rescues-mice-from-superantigen-induced-shock
#9
Alexei Shir, Shoshana Klein, Idit Sagiv-Barfi, Tamar Geiger, Maya Zigler, Yael Langut, Nufar Edinger, Alexander Levitzki
Superantigens (SAg) are extremely potent bacterial toxins, which evoke a virulent immune response, inducing non-specific T-cell proliferation, rapid cytokine release and lethal toxic shock, for which there is no effective treatment. We previously developed a small molecule, S101, which potently inhibits proliferating T-cells (Sagiv-Barfi et al, Bioorg Med Chem (2010) 18:6404-6413). In a severe mouse model of toxic shock, a single injection of S101 given together with superantigen challenge, rescued 100% of the mice...
November 15, 2017: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/29149250/modeling-the-causal-role-of-dna-methylation-in-the-association-between-cigarette-smoking-and-inflammation-in-african-americans-a-2-step-epigenetic-mendelian-randomization-study
#10
Min A Jhun, Jennifer A Smith, Erin B Ware, Sharon L R Kardia, Thomas H Mosley, Stephen T Turner, Patricia A Peyser, Sung Kyun Park
The association between cigarette smoking and inflammation is well known. However, the biological mechanisms behind the association are not fully understood, particularly the role of DNA methylation, which is known to be affected by smoking. Using 2-step epigenetic Mendelian randomization, we investigated the role of DNA methylation in the association between cigarette smoking and inflammation. In 822 African Americans from the Genetic Epidemiology Network of Arteriopathy, phase 2 (Jackson, Mississippi; 2000-2005), study population, we examined the association of cigarette smoking with DNA methylation using single nucleotide polymorphisms identified in previous genome-wide association studies of cigarette smoking...
November 15, 2017: American Journal of Epidemiology
https://www.readbyqxmd.com/read/29149171/risk-factors-for-hospitalizations-among-patients-with-cirrhosis-a-prospective-cohort-study
#11
Shari S Rogal, Viyan Udawatta, Imo Akpan, Akshata Moghe, Alexis Chidi, Amit Shetty, Eva Szigethy, Klaus Bielefeldt, Andrea DiMartini
This study was designed to assess unique baseline factors associated with subsequent hospitalizations in a cohort of outpatients with cirrhosis. A cohort of 193 patients with cirrhosis was recruited from an outpatient liver disease clinic at a single, tertiary medical center. Comorbidities, prescription medications, liver disease symptoms and severity, and psychiatric and pain symptoms were assessed at baseline using validated instruments. Inflammatory markers were measured using standardized Luminex assays...
2017: PloS One
https://www.readbyqxmd.com/read/29149107/treponema-denticola-chymotrypsin-like-proteinase-may-contribute-to-orodigestive-carcinogenesis-through-immunomodulation
#12
Mikko T Nieminen, Dyah Listyarifah, Jaana Hagström, Caj Haglund, Daniel Grenier, Dan Nordström, Veli-Jukka Uitto, Marcela Hernandez, Tülay Yucel-Lindberg, Taina Tervahartiala, Mari Ainola, Timo Sorsa
BACKGROUND: Periodontal pathogens have been linked to oral and gastrointestinal (orodigestive) carcinogenesis. However, the exact mechanisms remain unknown. Treponema denticola (Td) is associated with severe periodontitis, a chronic inflammatory disease leading to tooth loss. The anaerobic spirochete Td is an invasive bacteria due to its major virulence factor chymotrypsin-like proteinase. Here we aimed to investigate the presence of Td chymotrypsin-like proteinase (Td-CTLP) in major orodigestive tumours and to elucidate potential mechanisms for Td to contribute to carcinogenesis...
November 16, 2017: British Journal of Cancer
https://www.readbyqxmd.com/read/29148840/resveratrol-induces-mitochondrial-apoptosis-and-inhibits-epithelial-mesenchymal-transition-in-oral-squamous-cell-carcinoma-cells
#13
Seong-Eon Kim, Sang-Hun Shin, Jae-Yeol Lee, Chul-Hoon Kim, In-Kyo Chung, Hae-Mi Kang, Hae-Ryoun Park, Bong-Soo Park, In-Ryoung Kim
OSCC is the most common malignant cancer of the head and neck. EMT is an essential cellular process critical to the morphogenesis and homeostasis of solid tissues. It is also involved in the initial stage of cancer metastasis and invasion in which cells lose epithelial characteristics. While cancer therapy protocols such as surgery, radiation, and chemotherapy are effective and useful, the drug tolerance and toxicity of OSCC patients remain a problem. Resveratrol is mainly produced in red grape skin and exhibits anti-oxidative, anti-inflammatory, anti-proliferative, and anti-cancer properties...
November 17, 2017: Nutrition and Cancer
https://www.readbyqxmd.com/read/29148731/conjugation-of-transforming-growth-factor-beta-to-antigen-loaded-poly-lactide-co-glycolide-nanoparticles-enhances-efficiency-of-antigen-specific-tolerance
#14
Liam M Casey, Ryan M Pearson, Kevin Hughes, Jeffrey Liu, Justin Rose, Madeleine G North, Leon Wang, Lei Mei, Stephen D Miller, Lonnie D Shea
Current strategies for treating autoimmunity involve the administration of broad-acting immunosuppressive agents that impair healthy immunity. Intravenous (i.v.) administration of poly(lactide-co-glycolide) nanoparticles (NPs) containing disease-relevant antigens (Ag-NPs) have demonstrated antigen(Ag)-specific immune tolerance in models of autoimmunity. However, subcutaneous (s.c.) delivery of Ag-NPs has not been effective. This investigation tested the hypothesis that co-delivery of the immunomodulatory cytokine, transforming growth factor beta 1 (TGF-β), on Ag-NPs would modulate the immune response to Ag-NPs and improve the efficiency of tolerance induction...
November 17, 2017: Bioconjugate Chemistry
https://www.readbyqxmd.com/read/29148593/first-isolation-of-vibrio-tapetis-and-an-atypical-strain-of-aeromonas-salmonicida-from-skin-ulcerations-in-common-dab-limanda-limanda-in-the-north-sea
#15
M Vercauteren, E De Swaef, A Declercq, L Bosseler, S Gulla, S Balboa, J L Romalde, L Devriese, H Polet, F Boyen, K Chiers, A Decostere
Skin ulcerations rank amongst the most prevalent lesions affecting wild common dab (Limanda limanda) with an increase in prevalence of up to 3.5% in the Belgian part of the North Sea. A complex aetiology of these ulcerations is suspected, and many questions remain on the exact factors contributing to these lesions. To construct the aetiological spectrum of skin ulcerations in flatfish, a one-day monitoring campaign was undertaken in the North Sea. Fifteen fish presented with one or more ulcerations on the pigmented and/or non-pigmented side...
November 17, 2017: Journal of Fish Diseases
https://www.readbyqxmd.com/read/29148406/high-3-year-golimumab-survival-in-patients-with-rheumatoid-arthritis-ankylosing-spondylitis-and-psoriatic-arthritis-real-world-data-from-328-patients
#16
Konstantinos Thomas, Irini Flouri, Argiro Repa, Kalliopi Fragiadaki, Petros P Sfikakis, Christos Koutsianas, Evripidis Kaltsonoudis, Paraskevi V Voulgari, Alexandros A Drosos, Evangelia Petrikkou, Prodromos Sidiropoulos, Dimitrios Vassilopoulos
OBJECTIVES: Our primary objective was to study the long-term survival on drug (SOD) of patients with rheumatoid arthritis (RA), psoriatic arthritis (PsA) and ankylosing spondylitis (AS) treated with golimumab (GLM) in real life settings. METHODS: This was a retrospective, observational study of all patients treated with GLM in 4 Academic Centres in Greece during a 4-year period (09/2010-06/2014). SOD was analysed using Kaplan-Meier survival analysis, while Cox regression analysis estimating hazard ratios (HRs) for different baseline variables associated with drug discontinuation was performed for each disease...
November 9, 2017: Clinical and Experimental Rheumatology
https://www.readbyqxmd.com/read/29148205/inhaled-corticosteroids-and-the-risks-of-low-energy-fractures-in-patients-with-chronic-airway-diseases-a-propensity-score-matched-study
#17
Chun-Hao Tsai, Lin-Yu Laio, Cheng-Li Lin, Wei-Sheng Chung
BACKGROUND AND AIMS: Inhaled corticosteroids (ICSs) are crucial anti-inflammatory medications for chronic airway diseases. Studies investigating the relationship between ICSs and fractures in Asian populations are scant. We investigated whether ICSs increased the risk of low-energy fractures in patients with chronic airway diseases. METHODS: We used the Longitudinal Health Insurance Database to select patients aged 20 years and older with chronic airway diseases (asthma and COPD) between 2000 and 2011 as the base cohort...
November 17, 2017: Clinical Respiratory Journal
https://www.readbyqxmd.com/read/29148104/neuregulin-1-promotes-remyelination-and-fosters-a-pro-regenerative-inflammatory-response-in-focal-demyelinating-lesions-of-the-spinal-cord
#18
Hardeep Kataria, Arsalan Alizadeh, Ghazaleh M Shahriary, Shekoofeh Saboktakin Rizi, Ryan Henrie, Kallivalappil T Santhosh, James A Thliveris, Soheila Karimi-Abdolrezaee
Oligodendroglial cell death and demyelination are hallmarks of neurotrauma and multiple sclerosis that cause axonal damage and functional impairments. Remyelination remains a challenge as the ability of endogenous precursor cells for oligodendrocyte replacement is hindered in the unfavorable milieu of demyelinating conditions. Here, in a rat model of lysolecithin lysophosphatidyl-choline (LPC)-induced focal demyelination, we report that Neuregulin-1 (Nrg-1), an important factor for oligodendrocytes and myelination, is dysregulated in demyelinating lesions and its bio-availability can promote oligodendrogenesis and remyelination...
November 17, 2017: Glia
https://www.readbyqxmd.com/read/29148069/long-term-oral-exposure-to-safe-dose-of-bisphenol-a-in-association-with-high-fat-diet-stimulate-the-prostatic-lesions-in-a-rodent-model-for-prostate-cancer
#19
Camila H Facina, Silvana G P Campos, Bianca F Gonçalves, Rejane M Góes, Patricia S L Vilamaior, Sebastião R Taboga
BACKGROUND: Studies have shown that exposure to environmental chemicals known as endocrine disruptors can cause permanent changes in genital organs, such as the prostate. Among these environmental chemicals stands out bisphenol A (BPA). Another factor associated with prostate changes is the consumption of a high-fat diet. Although the relationship between the consumption of a high-fat diet and an increased risk of prostate cancer is well established, the mechanisms that lead to the establishment of this disease are not completely understood, nor the simultaneous action of BPA and high-fat diet...
November 17, 2017: Prostate
https://www.readbyqxmd.com/read/29148034/role-of-p62-sqstm1-beyond-autophagy-a-lesson-learned-from-drug-induced-toxicity-in-vitro
#20
Fernando Alegre, Ángela B Moragrega, Miriam Polo, Alberto Marti-Rodrigo, Juan V Esplugues, Ana Blas-Garcia, Nadezda Apostolova
BACKGROUND AND PURPOSE: SQSTM1/p62 is a multifunctional, stress-induced, scaffold protein involved in multiple cellular processes including autophagic clearance, regulation of inflammatory responses and redox homeostasis. Alterations in its function have been associated with a long list of human pathologies such as neurodegenerative, metabolic and bone diseases (down-regulation), and cancerogenesis (up-regulation). However, its role in the off-target effects of clinically used drugs is still not understood...
November 17, 2017: British Journal of Pharmacology
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