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https://www.readbyqxmd.com/read/28646573/interferon-%C3%AE-regulates-dendritic-cell-activation-and-migration-in-experimental-autoimmune-encephalomyelitis
#1
Leesa M Pennell, Eleanor N Fish
CD11c+ dendritic cells (DCs) exert a critical role as antigen-presenting cells in regulating pathogenic T cells in multiple sclerosis (MS). To determine whether the therapeutic benefit of interferon (IFN)-β treatment for MS is in part influenced by IFN regulation of DC function, we examined the immunophenotype of DCs derived from IFN-β(+/+) and IFN-β(-/-) mice using a myelin oligodendrocyte glycoprotein (MOG) peptide-induced mouse model of MS, experimental autoimmune encephalomyelitis (EAE). Our earlier work identified that IFN-β(-/-) mice exhibit earlier onset and more rapid progression of neurologic impairment compared with IFN-β(+/+) mice...
June 24, 2017: Immunology
https://www.readbyqxmd.com/read/28646516/tofacitinib-restores-the-inhibition-of-reverse-cholesterol-transport-induced-by-inflammation-understanding-the-lipid-paradox-associated-with-rheumatoid-arthritis
#2
S Pérez-Baos, J I Barrasa, P Gratal, A Larrañaga-Vera, I Prieto-Potin, G Herrero-Beaumont, R Largo
BACKGROUND AND PURPOSE: Patients with active rheumatoid arthritis (RA) have increased cardiovascular mortality, paradoxically associated with reduced circulating lipid levels. The Janus kinase (Jak) inhibitor tofacitinib ameliorates systemic and joint inflammation in RA with a concomitant increase in serum lipids. We analyzed the effect of tofacitinib on the lipid profile of hyperlipidemic rabbits with chronic arthritis (CA) and on the regulation of reverse cholesterol transport (RCT) during chronic inflammation...
June 23, 2017: British Journal of Pharmacology
https://www.readbyqxmd.com/read/28646511/control-of-autoimmune-inflammation-using-liposomes-to-deliver-positive-allosteric-modulators-of-metabotropic-glutamate-receptors
#3
Joshua M Gammon, Arjun R Adapa, Christopher M Jewell
Multiple sclerosis (MS) is an autoimmune disease where myelin is incorrectly recognized as foreign and attacked by the adaptive immune system. Dendritic cells (DCs) direct adaptive immunity by presenting antigens to T cells, therefore serving as a target for autoimmune therapies. N-Phenyl-7-(hydroxyimino)cyclopropa[b]chromen-1a-carboxamide (PHCCC), a positive allosteric modulator of metabotropic glutamate receptor 4 (mGluR4), can promote regulatory T cells by altering cytokine secretion to bias T cell differentiation...
June 24, 2017: Journal of Biomedical Materials Research. Part A
https://www.readbyqxmd.com/read/28646487/immunotoxic-effects-of-thymus-in-mice-following-exposure-to-nanoparticulate-tio2
#4
Fashui Hong, Yaoming Zhou, Yingjun Zhou, Ling Wang
Titanium dioxide nanoparticles (TiO2 NPs) have been extensively used in industry, medicine, and daily life, and have shown potential toxic effects for animals or humans. We noted that the effects of TiO2 NPs on the immune system and its mechanism of action in animals or humans have not been elucidated. Thus, mice were exposed to the TiO2 NPs (0, 1.25, 2.5, or 5 mg kg(-1) body weight) for 9 consecutive months. Exposure to TiO2 NPs was accumulated in the thymus, leading to a decrease in body weight and increases in the weight of the thymus or thymus indices...
June 24, 2017: Environmental Toxicology
https://www.readbyqxmd.com/read/28646455/human-nucleus-pulposus-intervertebral-disc-cells-becoming-senescent-using-different-treatments-exhibit-a-similar-transcriptional-profile-of-catabolic-and-inflammatory-genes
#5
Sotiris-Spyros Vamvakas, Eleni Mavrogonatou, Dimitris Kletsas
PURPOSE: Chronic low back pain has been associated with intervertebral disc (IVD) degeneration, which is characterized by the accumulation of extracellular matrix (ECM)-degrading proteases and inflammatory molecules in the degenerate tissue. IVD degeneration could be the outcome of natural organismal ageing and/or of the exposure of the disc to cumulative stressful environmental stimuli and is accompanied by an increased population of senescent cells in the tissue. On the other hand, senescent cells are known to secrete proteolytic enzymes and inflammatory molecules, which can contribute to ECM catabolism...
June 23, 2017: European Spine Journal
https://www.readbyqxmd.com/read/28646434/performance-of-quantiferon-%C3%A2-tb-gold-in-tube-assay-in-children-receiving-disease-modifying-anti-rheumatic-drugs
#6
Francesca Gabriele, Maria Trachana, Maria Simitsopoulou, Polixeni Pratsidou-Gertsi, Elias Iosifidis, Zoi Dorothea Pana, Emmanuel Roilides
BACKGROUND: To evaluate the performance of the Quantiferon(®)-TB Gold In-Tube (QFT-IT) interferon (IFN)-γ assay for the detection of latent tuberculosis infection (LTBI) in children receiving anti-rheumatic treatment in a tertiary referral hospital of Northern Greece. METHODS: A total of 79 consecutive children receiving anti-rheumatic treatment [of which 18 screened prior to antitumor necrosis factor (TNF)-α treatment] were tested using Mantoux tuberculin skin test (TST) and QFT-IT...
June 22, 2017: World Journal of Pediatrics: WJP
https://www.readbyqxmd.com/read/28645489/effects-of-hypnotic-bromovalerylurea-on-microglial-bv2-cells
#7
Shun Kawasaki, Naoki Abe, Fumito Ohtake, Afsana Islam, Mohammed Emamussalehin Choudhury, Ryo Utsunomiya, Satoshi Kikuchi, Tasuku Nishihara, Jun Kuwabara, Hajime Yano, Yuji Watanabe, Mayuki Aibiki, Toshihiro Yorozuya, Junya Tanaka
An old sedative and hypnotic bromovalerylurea (BU) has anti-inflammatory effects. BU suppressed nitric oxide (NO) release and proinflammatory cytokine expression by lipopolysaccharide (LPS)-treated BV2 cells, a murine microglial cell line. However, BU did not inhibit LPS-induced nuclear translocation of nuclear factor-κB and subsequent transcription. BU suppressed LPS-induced phosphorylation of signal transducer and activator of transcription 1 (STAT1) and expression of interferon regulatory factor 1 (IRF1)...
June 8, 2017: Journal of Pharmacological Sciences
https://www.readbyqxmd.com/read/28645311/zika-virus-tropism-and-interactions-in-myelinating-neural-cell-cultures-cns-cells-and-myelin-are-preferentially-affected
#8
Stephanie L Cumberworth, Jennifer A Barrie, Madeleine E Cunningham, Daniely Paulino Gomes de Figueiredo, Verena Schultz, Adrian J Wilder-Smith, Benjamin Brennan, Lindomar J Pena, Rafael Freitas de Oliveira França, Christopher Linington, Susan C Barnett, Hugh J Willison, Alain Kohl, Julia M Edgar
The recent global outbreak of Zika virus (ZIKV) infection has been linked to severe neurological disorders affecting the peripheral and central nervous systems (PNS and CNS, respectively). The pathobiology underlying these diverse clinical phenotypes are the subject of intense research; however, even the principal neural cell types vulnerable to productive Zika infection remain poorly characterised. Here we used CNS and PNS myelinating cultures from wild type and Ifnar1 knockout mice to examine neuronal and glial tropism and short-term consequences of direct infection with a Brazilian variant of ZIKV...
June 23, 2017: Acta Neuropathologica Communications
https://www.readbyqxmd.com/read/28645193/irf6-regulates-alternative-activation-by-suppressing-ppar%C3%AE-in-male-murine-macrophages
#9
Chuan Li, Wei Ying, Zheping Huang, Tyler Brehm, Andrew Morin, Anthony T Vella, Beiyan Zhou
Aberrant pro-inflammatory and suppressed anti-inflammatory (alternative) macrophage activation underlies the chronic inflammation associated with obesity and other metabolic disorders. This study demonstrates a novel role for Interferon Regulatory Factor 6 (IRF6) in regulating macrophage alternative activation (M2) by suppressing peroxisome proliferator-activated receptor-γ (PPARγ) expression, a critical regulator of alternative macrophage polarization. The data demonstrate suppression of IRF6 in both M2 macrophages and obese adipose tissue macrophages (ATMs)...
June 22, 2017: Endocrinology
https://www.readbyqxmd.com/read/28644354/development-and-function-of-immune-cells-in-an-adolescent-patient-with-a-deficiency-in-the-interleukin-10-receptor
#10
Sharon Veenbergen, Marieke A van Leeuwen, Gertjan J Driessen, Rogier Kersseboom, Lilian F de Ruiter, Rolien H C Raatgeep, Dicky J Lindenbergh-Kortleve, Ytje Simons-Oosterhuis, Katharina Biermann, Dicky J J Halley, Lissy de Ridder, Johanna C Escher, Janneke N Samsom
OBJECTIVE: Monogenic defects in the interleukin-10 (IL-10) pathway are extremely rare and cause infantile-onset inflammatory bowel disease (IBD)-like pathology. Understanding how immune responses are dysregulated in monogenic IBD-like diseases can provide valuable insight in "classical" IBD pathogenesis. Here, we studied long-term immune cell development and function in an adolescent IL-10 receptor (IL10RA)-deficient patient who presented in infancy with severe colitis and fistulizing perianal disease and is currently treated with immune suppressants...
July 2017: Journal of Pediatric Gastroenterology and Nutrition
https://www.readbyqxmd.com/read/28644112/susac-syndrome-misdiagnosed-as-multiple-sclerosis-with-exacerbation-by-interferon-beta-therapy
#11
Hussein Algahtani, Bader Shirah, Muhammad Amin, Eyad Altarazi, Hashem Almarzouki
Susac syndrome is a rare autoimmune disorder characterised by the clinical triad of encephalopathy, retinopathy (branch retinal artery occlusions) and hearing loss. The diagnosis of Susac syndrome may be difficult initially, and it is not uncommon for patients with Susac syndrome to be misdiagnosed with multiple sclerosis. In this case report, we describe a patient who was diagnosed as having multiple sclerosis for three years, with further deterioration after starting treatment with interferon beta-1a. The patient had the triad of encephalopathy, branch retinal artery occlusions and sensorineural hearing loss...
January 1, 2017: Neuroradiology Journal
https://www.readbyqxmd.com/read/28643502/the-pathogenesis-and-potential-therapeutic-method-of-idiopathic-thrombocytopenic-purpura
#12
Xiaohong Zhao, Xiaomei Qi, Chen Wang, Zhonghao Zhou, Haiwu Cao, Pin Wu, Linghao Li, Shiyun Lu, Zhi Wang
BACKGROUND: This study sought to clarify the pathogenesis of idiopathic thrombocytopenic purpura(ITP) and make preliminary investigations regarding a therapeutic method. METHODS: ELISA was used to establish and analyze the standard curve for interferon (IFN)-γ, interleukin (IL)-4, and IL-17 in order to determine a measurement method for these cytokines. Subsequently, cellular levels of IFN-γ, IL-4, and IL-17 in the peripheral blood of patients in the treatment group (traditional Chinese medicine) was compared with those in the control group (Western-style care)...
June 21, 2017: Minerva Medica
https://www.readbyqxmd.com/read/28643457/eradication-of-hepatitis-c-virus-profoundly-prolongs-survival-in-hepatocellular-carcinoma-patients-receiving-transarterial-chemoembolization
#13
Wei Teng, Yi-Chung Hsieh, Kar-Wai Lui, Wei-Ting Chen, Chien-Fu Hung, Chien-Hao Huang, Yi-Cheng Chen, Wen-Juei Jeng, Chen-Chun Lin, Chun-Yen Lin, Shi-Ming Lin, I-Shyan Sheen
Adjuvant pegylated interferon plus ribavirin treatment (PegIFN/RBV) reduces recurrence and prolongs survival in early stage hepatocellular carcinoma (HCC) patients with chronic hepatitis C (CHC) infection receiving resection or ablation. However, the impact of antiviral therapy in intermediate and advanced stage of CHC-HCC patients is uncertain. This study aimed to investigate the impact PegIFN/RBV treatment on recurrence free interval and survival in HCC patients receiving transarterial chemoembolization (TACE) METHODS: From 2010 to 2013, 274 CHC patients from a 1073-patients based cohort composed of freshly diagnosed HCC and receiving TACE treatment the Chang Gung Memorial Hospital, Linkou Medical Center were recruited...
June 22, 2017: Journal of Viral Hepatitis
https://www.readbyqxmd.com/read/28643451/polyclonal-and-monoclonal-b-lymphocytes-response-in-hcv-patients-treated-with-direct-acting-antiviral-agents
#14
Alvise Schiavinato, Alberto Zanetto, Giorgia Pantano, Francesca Tosato, Mitja Nabergoj, Paola Fogar, Elisa Piva, Martina Gambato, Enrica Franceschet, Annarosa Floreani, Fabio Farinati, Patrizia Burra, Francesco Paolo Russo, Mario Plebani
Hepatitis C Virus (HCV) chronic infection can be associated with extrahepatic manifestations such as mixed cryoglobulinemia and lymphoproliferative disorders that are endowed with increased rates of morbidity and all-cause mortality. In this study we used flow cytometry to evaluate the effect of Interferon-free antiviral treatment on peripheral blood lymphocytes in HCV patients with or without associated lymphoproliferative disorders. Flow cytometry analysis of peripheral blood lymphocytes were performed at baseline and at the end of treatment...
June 22, 2017: Journal of Viral Hepatitis
https://www.readbyqxmd.com/read/28643404/occurrence-of-late-relapse-of-hepatitis-c-virus-confirmed-by-molecular-analysis-after-sustained-virological-response-to-interferon-ribavirin-based-therapy
#15
Kazuhiko Hayashi, Masatoshi Ishigami, Satoshi Yasuda, Yoji Ishizu, Teiji Kuzuya, Takashi Honda, Tetsuya Ishikawa, Yoshiki Hirooka, Hidemi Goto
BACKGROUND AND AIM: The optimal duration of follow-up for patients who achieve sustained virological responses (SVR) has become an important issue. Reports on long-term follow-up of SVR have demonstrated that 99% of patients maintained SVR. However, the limitations of a majority of studies include small patient numbers, short study periods, and lack of molecular analysis of hepatitis C virus (HCV) genome. The present study sought to evaluate the late relapse rate in long-term follow-up of patients who achieved SVR, with molecular analysis of HCV...
June 22, 2017: Hepatology Research: the Official Journal of the Japan Society of Hepatology
https://www.readbyqxmd.com/read/28643330/muc1-c-is-a-target-in-lenalidomide-resistant-multiple-myeloma
#16
Li Yin, Ashujit Tagde, Reddy Gali, Yu-Tzu Tai, Teru Hideshima, Kenneth Anderson, David Avigan, Donald Kufe
Lenalidomide (LEN) acts directly on multiple myeloma (MM) cells by inducing cereblon-mediated degradation of interferon regulatory factor 4, Ikaros (IKZF)1 and IKZF3, transcription factors that are essential for MM cell survival. The mucin 1 (MUC1) C-terminal transmembrane subunit (MUC1-C) oncoprotein is aberrantly expressed by MM cells and protects against reactive oxygen species (ROS)-mediated MM cell death. The present studies demonstrate that targeting MUC1-C with GO-203, a cell-penetrating peptide inhibitor of MUC1-C homodimerization, is more than additive with LEN in downregulating the WNT/β-catenin pathway, suppressing MYC, and inducing late apoptosis/necrosis...
June 23, 2017: British Journal of Haematology
https://www.readbyqxmd.com/read/28642888/aquaporin-4-antibodies-in-patients-treated-with-natalizumab-for-suspected-ms
#17
Anna Gahlen, Anne-Kathrin Trampe, Steffen Haupeltshofer, Marius Ringelstein, Orhan Aktas, Achim Berthele, Brigitte Wildemann, Ralf Gold, Sven Jarius, Ingo Kleiter
OBJECTIVE: To evaluate (1) the frequency of aquaporin-4 antibody (AQP4-ab)-seropositive cases among patients treated with natalizumab (NAT) and previously diagnosed with MS (MS(NAT)) in a nationwide cohort, (2) the clinical course of NAT-treated AQP4-ab-seropositive neuromyelitis optica spectrum disorder (NMOSD) patients (NMO(NAT)), (3) AQP4-ab titers in NMO(NAT) and AQP4-ab-seropositive NMOSD treated with other immunotherapies (NMO(IT)), and (4) immune mechanisms influencing disease activity in NMO(NAT)...
July 2017: Neurology® Neuroimmunology & Neuroinflammation
https://www.readbyqxmd.com/read/28642841/strain-and-dose-dependent-reduction-of-toxoplasma-gondii-burden-in-pigs-is-associated-with-interferon-gamma-production-by-cd8-lymphocytes-in-a-heterologous-challenge-model
#18
Malgorzata Jennes, Stéphane De Craeye, Bert Devriendt, Katelijne Dierick, Pierre Dorny, Eric Cox
Toxoplasma gondii is a worldwide prevalent parasite of humans and animals. The global infection burden exceeds yearly one million disability-adjusted life years (DALY's) in infected individuals. Therefore, effective preventive measures should be taken to decrease the risk of infection in humans. Although human toxoplasmosis is predominantly foodborne by ingestion of tissue cysts in meat from domestic animals such as pigs, the incidence risk is difficult to estimate due to the lack of screening of animals for infection and insights in location and persistence of the parasite in the tissues...
2017: Frontiers in Cellular and Infection Microbiology
https://www.readbyqxmd.com/read/28642716/effects-of-acute-hypoxia-and-reoxygenation-on-physiological-and-immune-responses-and-redox-balance-of-wuchang-bream-megalobrama-amblycephala-yih-1955
#19
Nan Chen, Meng Wu, Guo-Pan Tang, Hui-Juan Wang, Chun-Xiao Huang, Xin-Jie Wu, Yan He, Bao Zhang, Cui-Hong Huang, Hong Liu, Wei-Min Wang, Huan-Ling Wang
To study Megalobrama amblycephala adaption to water hypoxia, the changes in physiological levels, innate immune responses, redox balance of M.amblycephala during hypoxia were investigated in the present study. When M. amblycephala were exposed to different dissolved oxygen (DO) including control (DO: 5.5 mg/L) and acute hypoxia (DO: 3.5 and 1.0 mg/L, respectively), hemoglobin (Hb), methemoglobin (MetHb), glucose, Na(+), succinatedehydrogenase (SDH), lactate, interferon alpha (IFNα), and lysozyme (LYZ), except hepatic glycogen and albumin gradually increased with the decrease of DO level...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28642550/cytokines-regulate-complement-receptor-immunoglobulin-expression-and-phagocytosis-of-candida-albicans-in-human-macrophages-a-control-point-in-anti-microbial-immunity
#20
Usma Munawara, Annabelle G Small, Alex Quach, Nick N Gorgani, Catherine A Abbott, Antonio Ferrante
Complement Receptor Immunoglobulin (CRIg), selectively expressed by macrophages, plays an important role in innate immunity by promoting phagocytosis of bacteria. Thus modulation of CRIg on macrophages by cytokines can be an important mechanism by which cytokines regulate anti-microbial immunity. The effects of the cytokines, tumor necrosis factor, transforming growth factor-β1, interferon-γ, interleukin (IL)-4, IL-13, IL-10, IL-1β, IL-6, lymphotoxin-α, macrophage-colony stimulating factor (M-CSF) and GM-CSF on CRIg expression were examined in human macrophages...
June 22, 2017: Scientific Reports
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