نتایج جستجو برای: ifnβ

تعداد نتایج: 404  

2017
Aaron Boster Jacqueline Nicholas Ning Wu Wei-Shi Yeh Monica Fay Michael Edwards Ming-Yi Huang Andrew Lee

INTRODUCTION Limited data are available on the real-world effectiveness of newer oral disease-modifying therapies (DMTs) in multiple sclerosis. The purpose of this study was to retrospectively compare the real-world effectiveness of dimethyl fumarate (DMF), fingolimod, teriflunomide, and injectable DMTs in routine clinical practice based on US claims data. METHODS Patients newly-initiating DM...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2017
Shilpa S Iyer Frederic Bibollet-Ruche Scott Sherrill-Mix Gerald H Learn Lindsey Plenderleith Andrew G Smith Hannah J Barbian Ronnie M Russell Marcos V P Gondim Catherine Y Bahari Christiana M Shaw Yingying Li Timothy Decker Barton F Haynes George M Shaw Paul M Sharp Persephone Borrow Beatrice H Hahn

Sexual transmission of HIV-1 is an inefficient process, with only one or few variants of the donor quasispecies establishing the new infection. A critical, and as yet unresolved, question is whether the mucosal bottleneck selects for viruses with increased transmission fitness. Here, we characterized 300 limiting dilution-derived virus isolates from the plasma, and in some instances genital sec...

2017
Mandy Menzel Hamid Akbarshahi Ellen Tufvesson Carl Persson Leif Bjermer Lena Uller

Deficient production of anti-viral interferons (IFNs) may be involved in causing viral-induced asthma exacerbations. Hence, drugs inducing lung IFN production would be warranted. Azithromycin may reduce asthma exacerbations but its modus operandi is unknown. Here, we investigated if azithromycin induces IFNβ expression in vitro in rhinovirus-infected bronchial epithelial cells from asthmatic do...

2014
Nikolaos Dimisianos Maria Rodi Dimitra Kalavrizioti Vasileios Georgiou Panagiotis Papathanasopoulos Athanasia Mouzaki

Background. MS patients show a remarkable heterogeneity in their response to disease modifying treatments. Given the need for early treatment initiation and the diversity of available options, a predictive marker that indicates good or poor response to treatment is highly desirable. Objective. To find a biomarker for treatment response to IFNβ among pro- and anti-inflammatory cytokines. Materia...

2013
Geneviève Garcin Yann Bordat Paul Chuchana Danièle Monneron Helen K. W. Law Jacob Piehler Gilles Uzé

The type I interferon (IFN) family comprises 15 cytokines (in human 13α, 1β, 1ω), which exert several cellular functions through binding to a common receptor. Despite initial activation of the same Jak/Stat signalling pathway, the cellular response may differ depending on type I IFN subtype. We investigated the activity of six type I IFN subtypes - IFNα1, α2, α8, α21, ω and β- to promote the di...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2011
Kristopher Clark Osamu Takeuchi Shizuo Akira Philip Cohen

Toll-like receptor (TLR) ligands that signal via TIR-domain-containing adapter-inducing IFNβ (TRIF) activate the IκB kinase (IKK)-related kinases, TRAF associated NFκB activator (TANK)-binding kinase-1 (TBK1) and IKKε, which then phosphorylate IRF3 and induce the production of IFNβ. Here we show that TBK1 and IKKε are also activated by TLR ligands that signal via MyD88. Notably, the activation ...

Journal: :Journal of Investigative Dermatology 2022

Dermatomyositis (DM) is a chronic, systemic autoimmune disease affecting the skin, muscle, and lungs. Lenabasum, non-psychoactive cannabinoid type 2 receptor (CB2R) agonist, currently being investigated as non-immunosuppressive treatment option for DM. The activation of CB2R has been shown to reduce several key pro-inflammatory cytokines implicated in Our lab previously demonstrated via immunoh...

2016
Grace E Cooper Zoe C Pounce Joshua C Wallington Leidy Y Bastidas-Legarda Ben Nicholas Chiamaka Chidomere Emily C Robinson Kirstin Martin Anna S Tocheva Myron Christodoulides Ratko Djukanovic Tom M A Wilkinson Karl J Staples

Macrophages are essential to maintaining lung homoeostasis and recent work has demonstrated that influenza-infected lung macrophages downregulate their expression of the scavenger receptor CD36. This receptor has also been shown to be involved in phagocytosis of Streptococcus pneumoniae, a primary agent associated with pneumonia secondary to viral infection. The aim of this study was to investi...

2017
Malte Bachmann Zoe Waibler Thomas Pleli Josef Pfeilschifter Heiko Mühl

Cytokine regulation of high-output nitric oxide (NO) derived from inducible NO synthase (iNOS) is critically involved in inflammation biology and host defense. Herein, we set out to characterize the role of type I interferon (IFN) as potential regulator of hepatic iNOS in vitro and in vivo. In this regard, we identified in murine Hepa1-6 hepatoma cells a potent synergism between pro-inflammator...

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