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type 1 interferon

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https://www.readbyqxmd.com/read/28531815/chicken-interleukin-1%C3%AE-mutants-are-effective-single-dose-vaccine-adjuvants-that-enhance-mucosal-immune-response
#1
Wen-Ting Chen, Hao-Kai Chang, Cheng-Chung Lin, Shan-Min Yang, Hsien-Sheng Yin
The use of cytokines as adjuvants in poultry is promising because they may enhance immune responses to antigens. In this study, we created two mutants, chicken interleukin-1 beta (ChIL-1β) Q19A and R140A, which exhibited significantly increased in vivo biological activity compared with wild-type ChIL-1β. The potential mucosal adjuvant activity of the mutants Q19A and R140A was evaluated in chickens through the intranasal coadministration of a single dose of the Newcastle disease virus (NDV) vaccine with Q19A or R140A...
May 19, 2017: Molecular Immunology
https://www.readbyqxmd.com/read/28529568/a-different-representation-of-natural-t-cells-and-natural-killer-cells-between-tumor-infiltrating-and-periphery-lymphocytes-in-human-hepatocellular-carcinoma
#2
Xiao-Feng Li, Dong Dai, Xiu-Yu Song, Jian-Jing Liu, Lei Zhu, Xiang Zhu, Wenchao Ma, Wengui Xu
Natural T cells [cluster of differentiation (CD) 3(+)CD56(+)] and natural killer (NK) cells (CD3(-)CD56(+)) are particularly abundant in the human liver and serve an important role in immune responses in the liver. The aim of the present study was to extensively determine the phenotypic and functional characteristics of natural T and NK cells in human hepatocellular carcinoma (HCC). Tumorous and non-tumorous tissue infiltrating lymphocytes (TILs and NILs, respectively) and peripheral blood mononuclear cells (PBMCs) from patients with hepatocellular carcinoma (HCC) were obtained to determine the frequency and phenotype of natural T/NK cells by a multicolor fluorescence activated cell sorting analysis...
May 2017: Oncology Letters
https://www.readbyqxmd.com/read/28528454/new-insights-into-pericarditis-mechanisms-of-injury-and-therapeutic-targets
#3
REVIEW
Bo Xu, Serge C Harb, Paul C Cremer
PURPOSE OF REVIEW: This review article aims to provide a contemporary insight into the pathophysiological mechanisms of and therapeutic targets for pericarditis, drawing distinction between autoinflammatory and autoimmune pericarditis. RECENT FINDINGS: Recent research has focused on the distinction between autoinflammatory and autoimmune pericarditis. In autoinflammatory pericarditis, viruses can activate the sensor molecule of the inflammasome, which results in downstream release of cytokines, such as interleukin-1, that recruit neutrophils and macrophages to the site of injury...
July 2017: Current Cardiology Reports
https://www.readbyqxmd.com/read/28528205/heterotrimeric-complex-of-p38-mapk-pkc%C3%AE-and-tirap-is-required-for-ap1-mediated-inflammatory-response
#4
Mirza S Baig, Dongfang Liu, Kannan Muthu, Anjali Roy, Uzma Saqib, Adnan Naim, Syed M Faisal, Mansi Srivastava, Rohit Saluja
Inflammation could be described as a physiological response of the body to tissue injury, pathogen invasion, and irritants. During the inflammatory phase, cells of both the innate as well as adaptive immune system are activated and recruited to the site of inflammation. These mediators are downstream targets for the transcription factors; activator protein-1 (AP1), nuclear factor kappa-light-chain-enhancer (NF-κB), signal transducers and activators of transcription factors (STAT1), as well as interferon regulatory factors (IRFs), which control the expression of most immunomodulatory genes...
May 18, 2017: International Immunopharmacology
https://www.readbyqxmd.com/read/28523924/comparison-of-transcriptional-profiles-of-interferons-cxcl10-and-rig-1-in-influenza-infected-a549-cells-stimulated-with-exogenous-interferons
#5
V Lachová, L Škorvanová, D Svetlíková, L Turianová, A Kostrábová, T Betáková
Type I and type III interferons (IFNs) are induced by viral infection. It was concluded that these IFN species are identical in regulation and biological functions. However, these two systems differ in the tissue expression of their receptors and their transcriptional regulation is fundamentally different as well as cellular signaling pathways that drive expression of each IFN. Here, we have investigated the transcriptional profile of endogenous IFNs after stimulation of cells with exogenous IFNs and subsequent infection of A549 cells with A/chicken/Germany/27 [H7N7] influenza virus...
2017: Acta Virologica
https://www.readbyqxmd.com/read/28519900/type-i-interferon-pathway-in-cns-homeostasis-and-neurological-disorders
#6
REVIEW
Thomas Blank, Marco Prinz
Type I interferons (IFNs), IFN-α and IFN-β, represent the major effector cytokines of the host immune response against viruses and other intracellular pathogens. These cytokines are produced via activation of numerous pattern recognition receptors, including the Toll-like receptor signaling network, retinoic acid-inducible gene-1 (RIG-1), melanoma differentiation-associated protein-5 (MDA-5) and interferon gamma-inducible protein-16 (IFI-16). Whilst the contribution of type I IFNs to peripheral immunity is well documented, they can also be produced by almost every cell in the central nervous system (CNS)...
May 18, 2017: Glia
https://www.readbyqxmd.com/read/28518105/murine-lymphocyte-labeling-by-64cu-antibody-receptor-targeting-for-in-vivo-cell-trafficking-by-pet-ct
#7
Sabrina H L Hoffmann, Andreas Maurer, Dorothea I Reck, Gerald Reischl, Bernd J Pichler, Manfred Kneilling, Christoph M Griessinger
This protocol illustrates the production of (64)Cu and the chelator conjugation/radiolabeling of a monoclonal antibody (mAb) followed by murine lymphocyte cell culture and (64)Cu-antibody receptor targeting of the cells. In vitro evaluation of the radiolabel and non-invasive in vivo cell tracking in an animal model of an airway delayed-type hypersensitivity reaction (DTHR) by PET/CT are described. In detail, the conjugation of a mAb with the chelator 1,4,7,10-tetraazacyclododecane-1,4,7,10-tetraacetic acid (DOTA) is shown...
April 29, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28514662/a-murine-intestinal-intraepithelial-nkp46-negative-innate-lymphoid-cell-population-characterized-by-group-1-properties
#8
Aline Van Acker, Konrad Gronke, Aindrila Biswas, Liesbet Martens, Yvan Saeys, Jessica Filtjens, Sylvie Taveirne, Els Van Ammel, Tessa Kerre, Patrick Matthys, Tom Taghon, Bart Vandekerckhove, Jean Plum, Ildiko Rita Dunay, Andreas Diefenbach, Georges Leclercq
The Ly49E receptor is preferentially expressed on murine innate-like lymphocytes, such as epidermal Vγ3 T cells, intestinal intraepithelial CD8αα(+) T lymphocytes, and CD49a(+) liver natural killer (NK) cells. As the latter have recently been shown to be distinct from conventional NK cells and have innate lymphoid cell type 1 (ILC1) properties, we investigated Ly49E expression on intestinal ILC populations. Here, we show that Ly49E expression is very low on known ILC populations, but it can be used to define a previously unrecognized intraepithelial innate lymphoid population...
May 16, 2017: Cell Reports
https://www.readbyqxmd.com/read/28514450/evolutionary-enhancement-of-zika-virus-infectivity-in-aedes-aegypti-mosquitoes
#9
Yang Liu, Jianying Liu, Senyan Du, Chao Shan, Kaixiao Nie, Rudian Zhang, Xiao-Feng Li, Renli Zhang, Tao Wang, Cheng-Feng Qin, Penghua Wang, Pei-Yong Shi, Gong Cheng
Zika virus (ZIKV) remained obscure until the recent explosive outbreaks in French Polynesia (2013-2014) and South America (2015-2016). Phylogenetic studies have shown that ZIKV has evolved into African and Asian lineages. The Asian lineage of ZIKV was responsible for the recent epidemics in the Americas. However, the underlying mechanisms through which ZIKV rapidly and explosively spread from Asia to the Americas are unclear. Non-structural protein 1 (NS1) facilitates flavivirus acquisition by mosquitoes from an infected mammalian host and subsequently enhances viral prevalence in mosquitoes...
May 17, 2017: Nature
https://www.readbyqxmd.com/read/28513416/the-role-of-esx-1-in-mycobacterium-tuberculosis-pathogenesis
#10
Ka-Wing Wong
In this article, we have described several cellular pathological effects caused by the Mycobacterium tuberculosis ESX-1. The effects include induction of necrosis, NOD2 signaling, type I interferon production, and autophagy. We then attempted to suggest that these pathological effects are mediated by the cytosolic access of M. tuberculosis-derived materials as a result of the phagosome-disrupting activity of the major ESX-1 substrate ESAT-6. Such activity of ESAT-6 is most likely due to its pore-forming activity at the membrane...
May 2017: Microbiology Spectrum
https://www.readbyqxmd.com/read/28512729/protective-effects-of-nebivolol-against-interleukin-1%C3%AE-il-1%C3%AE-induced-type-ii-collagen-destruction-mediated-by-matrix-metalloproteinase-13-mmp-13
#11
Zhigang Li, Baoyi Liu, Dewei Zhao, BenJie Wang, Yupeng Liu, Yao Zhang, Fengde Tian, Borui Li
The pathological progression of osteoarthritis (OA) involves degradation of articular cartilage matrix. Type II collagen is the main component of cartilage matrix, which is degraded by pro-inflammatory cytokines such as IL-1β mediated by MMP-13. Nebivolol, a licensed drug used for the treatment of hypertension in clinics, displays its anti-inflammatory capacity in various conditions. However, whether Nebivolol has a protective effect on cartilage matrix degradation has not been reported before. In this study, we investigated the effects of Nebivolol on regulating the expression of MMP-13 and degradation of type II collagen...
May 17, 2017: Cell Stress & Chaperones
https://www.readbyqxmd.com/read/28509128/a-case-of-rapid-amelioration-of-hepatitis-c-virus-associated-cryoglobulinemic-membranoproliferative-glomerulonephritis-treated-by-interferon-free-directly-acting-antivirals-for-hcv-in-the-absence-of-immunosuppressant
#12
Fumiaki Obata, Taichi Murakami, Junko Miyagi, Sayo Ueda, Taizo Inagaki, Masanori Minato, Hiroyuki Ono, Kenji Nishimura, Eriko Shibata, Masanori Tamaki, Sakiya Yoshimoto, Fumi Kishi, Seiji Kishi, Motokazu Matsuura, Kojiro Nagai, Hideharu Abe, Toshio Doi
Mixed cryoglobulinemic syndrome, which is a systemic vasculitis characterized by the immune complex deposition in small- and medium-sized arteries and most often due to chronic hepatitis C virus (HCV) infection, sometimes clinically manifests as refractory glomerulonephritis or nephritic syndrome. Patients with mixed cryoglobulinemic nephropathy who have a rapidly progressive glomerulonephritis should receive immunosuppressive therapy. After disease stabilization, patients should receive concurrent therapy for the underlying HCV infection...
May 2017: CEN Case Reports
https://www.readbyqxmd.com/read/28506791/enterovirus-71-induced-has-mir-21-contributes-to-evasion-of-host-immune-system-by-targeting-myd88-and-irak1
#13
Na Feng, Zhizhao Zhou, Yuanxia Li, Lifang Zhao, Zhengfeng Xue, Rong Lu, Kunpeng Jia
Enterovirus71(EV71), the etiological agent of hand-foot-and-mouth disease, has increasingly become a public health challenge around the world. Type I interferons (IFNs) are an important family of cytokines that regulate innate and adaptive immune responses to pathogens.These pathways are tightly regulated by the host to prevent an inappropriate cellular response, but viruses can modulate these pathways to proliferate and spread. In this study, we demonstrated that EV71 evades the immune surveillance system to proliferate by activating microRNA-21...
May 12, 2017: Virus Research
https://www.readbyqxmd.com/read/28506689/genetic-factors-interact-with-tobacco-smoke-to-modify-risk-for-inflammatory-bowel-disease-in-humans-and-mice
#14
Pankaj Yadav, David Ellinghaus, Gaëlle Rémy, Sandra Freitag-Wolf, Anabelle Cesaro, Frauke Degenhardt, Gabrielle Boucher, Myriam Delacre, Laurent Peyrin-Biroulet, Muriel Pichavant, John D Rioux, Philippe Gosset, Andre Franke, L Philip Schumm, Michael Krawczak, Mathias Chamaillard, Astrid Dempfle, Vibeke Andersen
BACKGROUND & AIMS: The role of tobacco smoke in the etiology of inflammatory bowel disease (IBD) is unclear. We investigated interactions between genes and smoking (gene-smoking interactions) that affect risk for Crohn's disease (CD) and ulcerative colitis (UC) in a case-only study of patients and in mouse models of IBD. METHODS: We used 55 immunochip-wide data sets that included 19,735 IBD cases (10,856 CD cases and 8879 UC cases) of known smoking status. We performed 3 meta-analyses each for CD, UC, and IBD (CD and UC combined), comparing data for never vs ever smokers, never vs current smokers, and never vs former smokers...
May 12, 2017: Gastroenterology
https://www.readbyqxmd.com/read/28506535/sca-1-expression-level-identifies-quiescent-hematopoietic-stem-and-progenitor-cells
#15
Mina N F Morcos, Kristina B Schoedel, Anja Hoppe, Rayk Behrendt, Onur Basak, Hans C Clevers, Axel Roers, Alexander Gerbaulet
Blood cell generation depends on continuous cellular output by the sequential hierarchy of hematopoietic stem cell (HSC) and progenitor populations that all contain quiescent and actively cycling cells. Hematopoietic stem and progenitor cells (HSPCs) express the surface molecule Stem cell antigen 1 (SCA-1/LY6A). Using histone 2B-red fluorescent fusion protein label retention and cell-cycle reporter mice, we demonstrate that high SCA-1 expression (SCA-1(hi)) identifies not only quiescent HSCs but quiescent cells on all hierarchical levels within the lineage(-)SCA-1(+)KIT(+) (LSK) population...
May 10, 2017: Stem Cell Reports
https://www.readbyqxmd.com/read/28505365/allograft-inflammatory-factor-1-links-t-cell-activation-interferon-response-and-macrophage-activation-in-chronic-kawasaki-disease-arteritis
#16
Anne H Rowley, Susan C Baker, Kwang-Youn A Kim, Stanford T Shulman, Amy Yang, David Arrollo, Matthew DeBerge, Shuling Han, Nicholas E S Sibinga, Adam J Pink, Edward B Thorp
Background.: Kawasaki disease (KD) is widely viewed as an acute arteritis. However, our pathologic studies show that chronic coronary arteritis can persist long after disease onset and is closely linked with arterial stenosis. Transcriptome profiling of acute KD arteritis tissues revealed upregulation of T lymphocyte, type I interferon, and allograft inflammatory factor-1 (AIF1) genes. We determined whether these immune responses persist in chronic KD arteritis, and we investigated the role of AIF1 in these responses...
May 15, 2017: Journal of the Pediatric Infectious Diseases Society
https://www.readbyqxmd.com/read/28505176/systematic-multiparametric-analysis-of-mycobacterium-tuberculosis-intracellular-infection-offers-insight-into-coordinated-virulence
#17
Amy K Barczak, Roi Avraham, Shantanu Singh, Samantha S Luo, Wei Ran Zhang, Mark-Anthony Bray, Amelia E Hinman, Matthew Thompson, Raymond M Nietupski, Aaron Golas, Paul Montgomery, Michael Fitzgerald, Roger S Smith, Dylan W White, Anna D Tischler, Anne E Carpenter, Deborah T Hung
A key to the pathogenic success of Mycobacterium tuberculosis (Mtb), the causative agent of tuberculosis, is the capacity to survive within host macrophages. Although several factors required for this survival have been identified, a comprehensive knowledge of such factors and how they work together to manipulate the host environment to benefit bacterial survival are not well understood. To systematically identify Mtb factors required for intracellular growth, we screened an arrayed, non-redundant Mtb transposon mutant library by high-content imaging to characterize the mutant-macrophage interaction...
May 15, 2017: PLoS Pathogens
https://www.readbyqxmd.com/read/28503979/expression-of-the-ifnar1-chain-of-type-1-interferon-receptor-in-benign-cells-protects-against-progression-of-acute-leukemia
#18
Bin Zhao, Sabyasachi Bhattacharya, Qiujing Yu, Serge Y Fuchs
Type I interferons (IFN) were widely used for leukemia treatment. These cytokines act on cell surface receptor consisting of the IFNAR1/2 chains to induce anti-tumorigenic effects. Given that levels of IFNAR1 can be regulated by phosphorylation-driven ubiquitination and degradation that undermines IFN signaling and anti-tumorigenic effects, we sought to determine the importance of IFNAR1 downregulation in progression of acute leukemia. Using knock-in mice deficient in downregulation of IFNAR1, we uncovered that IFNAR1 expression in stromal benign cells functions to protect against progression of leukemia...
May 15, 2017: Leukemia & Lymphoma
https://www.readbyqxmd.com/read/28502478/the-cellular-retinoic-acid-binding-protein-2-promotes-survival-of-malignant-peripheral-nerve-sheath-tumor-cells
#19
Susan Fischer-Huchzermeyer, Anna Dombrowski, Christian Hagel, Victor Felix Mautner, Jens Schittenhelm, Anja Harder
Malignant peripheral nerve sheath tumors (MPNSTs) are aggressive neoplasms that commonly occur in patients with neurofibromatosis type 1 (NF1). Effective chemotherapy is not available. To characterize a therapeutic target for treatment, we investigated the role of cellular retinoic acid binding protein 2 (CRABP2) in MPNST in vitro. CRABP2 is a transcriptional co-activator of retinoic acid signaling. Although overexpression of CRABP2 is described in several cancers, it has not yet been studied in MPNSTs. We investigated CRABP2 expression in cultured Schwann cells and formalin-fixed, paraffin-embedded specimens of human peripheral nerve sheath tumors...
May 11, 2017: American Journal of Pathology
https://www.readbyqxmd.com/read/28502093/the-tlr4-trif-pathway-can-protect-against-the-development-of-experimental-allergic-asthma
#20
Karim H Shalaby, Saba Al-Heialy, Kimitake Tsuchiya, Soroor Farahnak, Toby K McGovern, Paul-Andre Risse, Woong-Kyung Suh, Salman T Qureshi, James G Martin
The Toll-like Receptor (TLR) adaptor proteins Myeloid Differentiating Factor 88 (MyD88) and Toll, interleukin-1 Receptor and Resistance protein (TIR) domain-containing adaptor inducing interferon-β (TRIF) comprise the two principal limbs of the TLR signaling network. We studied the role of these adaptors in the TLR4-dependent inhibition of allergic airway disease and induction of CD4+ICOS+ T cells by nasal application of Protollin(™) , a mucosal adjuvant composed of TLR2 and 4 agonists. Wild-type (wt), Trif -/- or Myd88 -/- mice were sensitized to birch pollen extract (BPEx), then received intranasal Protollin followed by consecutive BPEx challenges...
May 14, 2017: Immunology
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