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Type 3 Interferon

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https://www.readbyqxmd.com/read/28530548/critical-role-of-rig-i-and-mda5-in-early-and-late-stages-of-tulane-virus-infection
#1
Preeti Chhabra, Priya Ranjan, Theresa Cromeans, Suryaprakash Sambhara, Jan Vinjé
Human noroviruses are a major cause of acute gastroenteritis worldwide, but the lack of a robust cell culture system or small animal model have hampered a better understanding of innate immunity against these viruses. Tulane virus (TV) is the prototype virus of a tentative new genus, Recovirus, in the family Caliciviridae. Its epidemiology and biological properties most closely resemble human norovirus. The host innate immune response to RNA virus infection primarily involves pathogen-sensing toll-like receptors (TLRs) TLR3 and TLR7 and retinoic acid-inducible gene I-like receptor RIG-I and melanoma differentiation associated gene 5 (MDA5)...
May 22, 2017: Journal of General Virology
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/28507808/pro-necrotic-molecules-impact-local-immunosurveillance-in-human-breast-cancer
#3
Gautier Stoll, Yuting Ma, Heng Yang, Oliver Kepp, Laurence Zitvogel, Guido Kroemer
Necrosis culminates in spilling cellular content through the permeabilized plasma membrane, thereby releasing potentially immunostimulatory molecules in the pericellular space of dead cells. Accordingly, molecules involved in necroptotic signaling, such as receptor-interacting serine/threonine-protein kinase 3 (RIPK3) and mixed lineage kinase-like (MLKL) have been found to stimulate anticancer immune responses in mouse models of chemotherapy. mRNAs encoding prominent pro-necrotic gene products (RIPK1, RIPK3, MLKL, PGAM5 and DFNA5) were correlated with immune-related metagenes in several cancer types (breast, colorectal, lung, ovary, melanoma), revealing the strongest associations in breast cancer...
2017: Oncoimmunology
https://www.readbyqxmd.com/read/28506689/genetic-factors-interact-with-tobacco-smoke-to-modify-risk-for-inflammatory-bowel-disease-in-humans-and-mice
#4
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/28504566/influence-of-lactobacillus-reuteri-l26-biocenol%C3%A2-on-immune-response-against-porcine-circovirus-type-2-infection-in-germ-free-mice
#5
V Karaffová, T Csank, D Mudroňová, J Király, V Revajová, S Gancarčíková, R Nemcová, J Pistl, Š Vilček, M Levkut
Probiotic bacteria are frequently used for prevention of bacterial infections of the gastrointestinal tract, but there are only limited studies on their efficacy against viral gut infections in animals. The aim of this study was to investigate the effect of probiotic Lactobacillus reuteri L26 Biocenol(TM) on the innate and adaptive immune responses in germ-free Balb/c mice, experimentally infected by porcine circovirus type 2 (PCV2), which confers immunosuppressive effect. A total of 30 six-week-old female mice were divided into 3 groups and animals in experimental group LPCV (n=10) were inoculated with L...
May 15, 2017: Beneficial Microbes
https://www.readbyqxmd.com/read/28494927/comparison-of-interferon-and-bovine-herpesvirus-1-specific-iga-levels-in-nasal-secretions-of-dairy-cattle-administered-an-intranasal-modified-live-viral-vaccine-prior-to-calving-or-on-the-day-of-calving
#6
Victor S Cortese, Amelia Woolums, David J Hurley, Roy Berghaus, John K Bernard, Thomas H Short
Thirty-two Holstein cows were allocated to receive intranasal vaccination with modified live bovine herpesvirus-1 (BHV-1), bovine respiratory syncytial virus (BRSV) and parainfluenza type 3 virus (PI3V) vaccine either two weeks prior to their projected calving date, or within 24h after calving. Nasal secretions were collected twice at a 12-h interval on the day prior to vaccination (day 0) and at 2, 4, 7, 10 and 14days post vaccination to measure interferon (IFN) alpha, IFN-beta, IFN-gamma, and BHV-1-specific IgA by ELISA...
May 2017: Veterinary Immunology and Immunopathology
https://www.readbyqxmd.com/read/28494925/comparison-of-humoral-and-t-cell-mediated-immune-responses-to-a-single-dose-of-bovela-%C3%A2-live-double-deleted-bvdv-vaccine-or-to-a-field-bvdv-strain
#7
Ratree Platt, Lyle Kesl, Christian Guidarini, Chong Wang, James A Roth
The objective of this study was to determine and compare the humoral and cellular immune responses of calves exposed to a single dose of Bovela(®) bovine viral diarrhea virus (BVDV) live double deleted vaccine or a field strain virus (FSV) of BVDV type 2 (strain 890). Thirty seronegative, colostrum-deprived 5 month-old Holstein steer calves that tested negative for persistent BVDV by ear notch immunohistochemistry and seronegative to BVDV types 1 and 2 were used. Calves were screened by multi-parameter flow cytometry (MP-FCM) 1 week before vaccination to ensure that they were negative for T cell responses to the BVDV types 1 and 2 viruses in the Bovela(®) vaccine...
May 2017: Veterinary Immunology and Immunopathology
https://www.readbyqxmd.com/read/28493079/tlr2-regulates-allergic-airway-inflammation-and-autophagy-through-pi3k-akt-signaling-pathway
#8
Xuqin Jiang, Lei Fang, Huimei Wu, Xiaodong Mei, Fang He, Peishan Ding, Rongyu Liu
Toll-like receptors (TLRs) are innate pattern recognition receptors that play a critical role in allergic inflammation, yet their contribution to autophagy in asthma remains poorly defined. Here, we investigate the role of Toll-like receptor 2 (TLR2) in phosphoinositide 3-kinases/protein kinase B (PI3K/Akt) pathway-mediated autophagy in ovalbumin-induced airway inflammation in mice. Wild-type (WT) and TLR2-knockout (TLR2(-/-)) C57BL/6 mice were ovalbumin-sensitized and ovalbumin-challenged. In ovalbumin-challenged WT mice, enhanced expression of TLR2 in lung tissue, remarkable inflammatory cell infiltrates, goblet cell hyperplasia, and increased mucus production were observed...
May 10, 2017: Inflammation
https://www.readbyqxmd.com/read/28492391/hepatitis-c-virus-drives-increased-type-i-interferon-associated-impairments-associated-with-fibrosis-severity-in-antiretroviral-treatment-treated-hiv-1-hepatitis-c-virus-coinfected-individuals
#9
Morgane Griesbeck, Marc-Antoine Valantin, Karine Lacombe, Assia Samri-Hassimi, Julie Bottero, Catherine Blanc, Zineb Sbihi, Rima Zoorob, Christine Katlama, Marguerite Guiguet, Marcus Altfeld, Brigitte Autran
BACKGROUND: Viral coinfections might contribute to the increased immune activation and inflammation that persist in antiretroviral treatment (ART)-treated HIV-1 patients. We investigated whether the hepatitis C virus (HCV) coinfection contributes to such alterations by impairing the plasmacytoid dendritic cell (pDC) IFNα/TLR7 pathway in a highly homogeneous group of ART-treated HIV-1-HCV-coinfected patients. METHODS: Twenty-nine HIV-1-infected patients with fully suppressive ART were included, 15 of whom being HCV-coinfected with mild-to-moderate fibrosis and matched for their HIV-1 disease, and 13 control healthy donors...
June 1, 2017: AIDS
https://www.readbyqxmd.com/read/28490401/immunopathologic-characteristics-of-nasal-polyps-in-adult-koreans-a-single-center-study
#10
Seung-Heon Shin, Yee-Hyuk Kim, Mi-Kyung Ye, Sung-Yong Choi
BACKGROUND: Chronic rhinosinusitis with nasal polyps (NP) (CRSwNP) is classified into eosinophilic and noneosinophilic types based on the level of tissue eosinophilia. The immunopathologic features of Western and Asian CRSwNP differ. OBJECTIVES: The aim of this study was to investigate the immunopathologic characteristics of Korean patients with eosinophilic NP versus noneosinophilic NP and those with atopic NP versus nonatopic NP. METHODS: Tissue samples were collected from 81 patients with NP and 24 controls...
May 1, 2017: American Journal of Rhinology & Allergy
https://www.readbyqxmd.com/read/28487378/encephalomyocarditis-virus-3c-protease-attenuates-type-i-interferon-production-through-disrupting-tank-tbk1-ikk%C3%AE%C2%B5-irf3-complex
#11
Li Huang, Tao Xiong, Huibin Yu, Quan Zhang, Kunli Zhang, Changyao Li, Liang Hu, Yuanfeng Zhang, Lijie Zhang, Qinfang Liu, Shengnan Wang, Xijun He, Zhigao Bu, Xuehui Cai, Shangjin Cui, Jiangnan Li, Changjiang Weng
TRAF family member-associated NF-κB activator (TANK) is a scaffold protein that assembles into the interferon regulator factor 3 (IRF3)-phosphorylating TBK1-IKKε complex, where it is involved in regulating phosphorylation of the IRF3 and interferon (IFN) production. However, the functions of TANK in Encephalomyocarditis virus (EMCV) infection-induced type I IFN production are not fully understood. Here, we demonstrated that, instead of stimulating type I IFN production, the EMCV-HB10 strain infection potently inhibited Sendai virus (SeV)- and polyI:C-induced IRF3 phosphorylation and type I IFN production in HEK293T cells...
May 9, 2017: Biochemical Journal
https://www.readbyqxmd.com/read/28482908/curative-or-pre-emptive-adenovirus-specific-t-cell-transfer-from-matched-unrelated-or-third-party-haploidentical-donors-after-hsct-including-ucb-transplantations-a-successful-phase-i-ii-multicenter-clinical-trial
#12
Chongsheng Qian, Arnaud Campidelli, Yingying Wang, Huili Cai, Véronique Venard, Hélène Jeulin, Jean Hugues Dalle, Cécile Pochon, Maud D'aveni, Benedicte Bruno, Catherine Paillard, Stéphane Vigouroux, Charlotte Jubert, Patrice Ceballos, Aude Marie-Cardine, Claire Galambrun, Clément Cholle, Isabelle Clerc Urmes, Nadine Petitpain, Marcelo De Carvalho Bittencourt, Véronique Decot, Loïc Reppel, Alexandra Salmon, Laurence Clement, Danièle Bensoussan
BACKGROUND: Allogeneic hematopoietic stem cell transplantation (HSCT), the most widely used potentially curable cellular immunotherapeutic approach in the treatment of hematological malignancies, is limited by life-threatening complications: graft versus host disease (GVHD) and infections especially viral infections refractory to antiviral drugs. Adoptive transfer of virus-specific T cells is becoming an alternative treatment for infections following HSCT. We report here the results of a phase I/II multicenter study which includes a series of adenovirus-specific T cell (ADV-VST) infusion either from the HSCT donor or from a third party haploidentical donor for patients transplanted with umbilical cord blood (UCB)...
May 8, 2017: Journal of Hematology & Oncology
https://www.readbyqxmd.com/read/28480857/combined-antiviral-treatment-of-hepatitis-c-virus-infection-with-pegylated-interferon-peg-ifn-%C3%AE-2a-pegferon-and-ribavirin-copegus-in-inmates
#13
E Vashakidze, T Imnadze
The aim of the study was to assess the impact of combined antiviral therapy in prisoners with HCV. In total, 210 patients with chronic C hepatitis have been observed. The patients were divided into 3 groups according to HCV genotype: Group I: - 70 patients infected with genotype 1a/1b; Group II: - 70 patients infected with genotype 2a/2b; Group III: - 70 patients infected with genotype 3a. As for the patients with genotype I: RVR - rapid virological response was negative in 100%; EVR - early virological response was negative in 99%; EOT - end of treatment results was negative in 94% and SVR- sustained virologic response was negative in 91%...
March 2017: Georgian Medical News
https://www.readbyqxmd.com/read/28480259/cost-effectiveness-and-cost-containment-in-the-era-of-interferon-free-therapies-to-treat-hepatitis-c-virus-genotype-1
#14
Benjamin P Linas, Jake R Morgan, Mai T Pho, Jared A Leff, Bruce R Schackman, C Robert Horsburgh, Sabrina A Assoumou, Joshua A Salomon, Milton C Weinstein, Kenneth A Freedberg, Arthur Y Kim
BACKGROUND: Interferon-free regimens to treat hepatitis C virus (HCV) genotype 1 are effective but costly. At this time, payers in the United States use strategies to control costs including (1) limiting treatment to those with advanced disease and (2) negotiating price discounts in exchange for exclusivity. METHODS: We used Monte Carlo simulation to investigate budgetary impact and cost effectiveness of these treatment policies and to identify strategies that balance access with cost control...
2017: Open Forum Infectious Diseases
https://www.readbyqxmd.com/read/28479732/effect-of-a-novel-ashwagandha-based-herbomineral-formulation-on-pro-inflammatory-cytokines-expression-in-mouse-splenocyte-cells-a-potential-immunomodulator
#15
Mahendra Kumar Trivedi, Sambhu Charan Mondal, Mayank Gangwar, Snehasis Jana
BACKGROUND: Herbomineral formulations are momentous in an audience of worldwide by virtue of their holistic approach to life. These formulations are widely used as complementary therapies in immunocompromised patients including cancer. Still, there is the need of cost-effective and safe herbomineral-based formulation that can modulate immune response by the regulation of cytokines cascades. OBJECTIVE: Current study, we investigated immunomodulatory effect of TEBEH in LPS-induced cytokines expression levels in mouse splenocytes in vitro...
January 2017: Pharmacognosy Magazine
https://www.readbyqxmd.com/read/28479387/the-effects-of-tlr3-trif-and-traf3-snps-and-interactions-with-environmental-factors-on-type-2-diabetes-mellitus-and-vascular-complications-in-a-han-chinese-population
#16
Zixing Zhou, Chengli Zeng, Lihong Nie, Shiqi Huang, Congcong Guo, Di Xiao, Yajing Han, Xiaohong Ye, Meiling Ou, Chuican Huang, Xingguang Ye, Zihao Wen, Guang Yang, Chunxia Jing
Toll-like receptor 3 (TLR3) is involved in type I interferon-β (IFN-β) via TIR-domain-containing adapter-inducing interferon-β (TRIF) and Tumor necrosis factor receptor-associated factor 3 (TRAF3), culminating in inflammation and immunity reactions. TLR3 is implicated in insulin resistance and type 2 diabetes mellitus (T2DM). Eight SNPs of these genes were detected in 552 T2DM patients and 552 matched healthy control subjects. Gene-gene and gene-environment interactions and haplotype associations were also evaluated...
May 4, 2017: Gene
https://www.readbyqxmd.com/read/28475458/mda5-associated-neuroinflammation-and-the-singleton-merten-syndrome-two-faces-of-the-same-type-i-interferonopathy-spectrum
#17
Insa Buers, Gillian I Rice, Yanick J Crow, Frank Rutsch
In 1973, Singleton and Merten described a new syndrome in 2 female probands with aortic and cardiac valve calcifications, early loss of secondary dentition, and widened medullary cavities of the phalanges. In 1984, Aicardi and Goutières defined a phenotype resembling congenital viral infection with basal ganglia calcification and increased protein content in the cerebrospinal fluid. Between 2006 and 2012, mutations in 6 different genes were described to be associated with Aicardi-Goutières syndrome, specifically-TREX1, RNASEH2A, RNASEH2B, RNASEH2C, ADAR, and SAMHD1...
May 2017: Journal of Interferon & Cytokine Research
https://www.readbyqxmd.com/read/28466469/recipient-donor-kir-ligand-matching-prevents-cmv-reactivation-post-haploidentical-t-cell-replete-transplantation
#18
Xiang-Yu Zhao, Xue-Yi Luo, Xing-Xing Yu, Xiao-Su Zhao, Ting-Ting Han, Ying-Jun Chang, Ming-Rui Huo, Lan-Ping Xu, Xiao-Hui Zhang, Kai-Yan Liu, Dan Li, Zheng-Fan Jiang, Xiao-Jun Huang
Licensed natural killer (NK) cells have been demonstrated to have anti-cytomegalovirus (CMV) activity. We prospectively analysed the human leucocyte antigen typing of donor-recipient pairs and the killer cell immunoglobulin-like receptor (KIR) typing of donors for 180 leukaemia patients to assess the predictive roles of licensed NK cells on CMV reactivation post-T-cell-replete haploidentical stem cell transplantation. Multivariate analysis showed that donor-recipient KIR ligand graft-versus-host or host-versus-graft direction mismatch was associated with increased refractory CMV infection (Hazard ratio = 2·556, 95% confidence interval, 1·377-4·744, P = 0·003) post-transplantation...
May 3, 2017: British Journal of Haematology
https://www.readbyqxmd.com/read/28465426/a-novel-agonist-of-the-trif-pathway-induces-a-cellular-state-refractory-to-replication-of-zika-chikungunya-and-dengue-viruses
#19
Kara M Pryke, Jinu Abraham, Tina M Sali, Bryan J Gall, Iris Archer, Andrew Liu, Shelly Bambina, Jason Baird, Michael Gough, Marita Chakhtoura, Elias K Haddad, Ilsa T Kirby, Aaron Nilsen, Daniel N Streblow, Alec J Hirsch, Jessica L Smith, Victor R DeFilippis
The ongoing concurrent outbreaks of Zika, Chikungunya, and dengue viruses in Latin America and the Caribbean highlight the need for development of broad-spectrum antiviral treatments. The type I interferon (IFN) system has evolved in vertebrates to generate tissue responses that actively block replication of multiple known and potentially zoonotic viruses. As such, its control and activation through pharmacological agents may represent a novel therapeutic strategy for simultaneously impairing growth of multiple virus types and rendering host populations resistant to virus spread...
May 2, 2017: MBio
https://www.readbyqxmd.com/read/28455446/enterovirus-71-suppresses-interferon-responses-by-blocking-jak-stat-signaling-through-inducing-karyopherin-%C3%AE-1-degradation
#20
Chunyang Wang, Menghuai Sun, Xinhui Yuan, Lianfu Ji, Yu Jin, Carol J Cardona, Zheng Xing
Enterovirus 71 (EV71) has emerged as one of the most important enteroviruses since the eradication of poliovirus, and causes severe neurological symptoms for which no effective antiviral drugs are available. Type I interferons (IFN-α/β) have been used clinically as antiviral therapy as the first line of defense against virus infections successfully for decades. However, treatment with Type I interferons has not been effective in patients with EV71 infection. In this study, we found that in cells pre-treated with IFN-β, EV71 infection could still lead to a cytopathic effect and the viral replication was not affected...
April 28, 2017: Journal of Biological Chemistry
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