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Journal of Interferon & Cytokine Research

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https://www.readbyqxmd.com/read/28514196/interactions-between-ns1-of-influenza-a-viruses-and-interferon-%C3%AE-%C3%AE-determinants-for-vaccine-development
#1
Ben X Wang, Eleanor N Fish
Influenza A viruses (IAVs) cause mild to severe infections in humans with considerable socioeconomic and global health consequences. The host interferon (IFN)-α/β response, critical as the first line of defense against foreign pathogens, is induced upon detection of IAV genomic RNA in infected cells by host innate pattern recognition receptors. IFN-α/β production and subsequent activation of cell signaling result in the expression of antiviral IFN-stimulated genes whose products target various stages of the IAV life cycle to inhibit viral replication and the spread of infection and establish an antiviral state...
May 17, 2017: Journal of Interferon & Cytokine Research
https://www.readbyqxmd.com/read/28472595/vascular-endothelial-growth-factor-expression-in-hepatitis-c-virus-induced-liver-fibrosis-a-potential-biomarker
#2
Ghada M Salum, Noha G Bader El Din, Marwa K Ibrahim, Mohamed M Anany, Reham M Dawood, Ahmed Khairy, Mostafa K El Awady
The major complication of hepatitis C virus (HCV) infection is the induction of hepatic fibrosis. In this study, we investigated the correlation between the expression level of vascular endothelial growth factor (VEGFA) at mRNA and protein levels and the progression of HCV-related liver fibrosis. One hundred twenty subjects were selected for this study: 15 controls and 105 chronic HCV patients with different fibrosis grades (44 F0-F1 and 61 F2-F4). Quantitative real-time polymerase chain reaction (qRT-PCR) was used to measure VEGFA mRNA in peripheral blood mononuclear cells, while enzyme-linked immunosorbent assay (ELISA) was used to measure the secreted VEGFA protein in serum...
May 4, 2017: Journal of Interferon & Cytokine Research
https://www.readbyqxmd.com/read/28467275/beyond-isglylation-functions-of-free-intracellular-and-extracellular-isg15
#3
Paula Fernandes Dos Santos, Daniel Santos Mansur
ISG15 is a ubiquitin-like type I IFN-stimulated protein of 15 kDa and is one of the most prominently expressed proteins in viral infections. ISG15 is widely known to be involved in a process called ISGylation, where it binds to over 150 targets from a variety of classes of proteins including central immune signaling pathways such as those mediated by NFκB, JNK, and IRF-3. However, ISG15 also exists in a free form that can act intra- or extracellularly. In vitro and in vivo evidences suggest that free ISG15 play different roles in several cellular processes, from cancer and defense against viral infections to activation of immune cells such as lymphocytes, monocytes, and NK cells...
May 3, 2017: Journal of Interferon & Cytokine Research
https://www.readbyqxmd.com/read/28453369/inhibition-of-inflammatory-response-by-crocin-attenuates-hemorrhagic-shock-induced-organ-damages-in-rats
#4
Long Yang, Xiujuan Dong
Hemorrhagic shock (HS) is associated with an excessive activation of inflammation, contributing to multiple organ failure in numerous medical or surgical conditions. To explore the therapeutic potential of crocin, a natural compound with anti-inflammatory properties, we administered crocin to rats during resuscitation following HS induced by withdrawing blood. Compared with control animals which were sham-treated, HS-operated rats showed organ damages as manifested by enhanced markers of multiple organ dysfunctions...
April 28, 2017: Journal of Interferon & Cytokine Research
https://www.readbyqxmd.com/read/28440692/both-hepatitis-c-virus-specific-t-cell-responses-and-il28b-rs12979860-single-nucleotide-polymorphism-genotype-influence-antihepatitis-c-virus-treatment-outcome-in-patients-with-chronic-hepatitis-c
#5
José M Benito, Javier García-Samaniego, Marcial García, Antonio Madejón, Luz Martín-Carbonero, Alfonso Cabello, Beatriz Álvarez, Miguel Górgolas, Norma Rallón
Despite new treatments for hepatitis C virus (HCV) infection, IFNα-based regimens still have clinical relevance in special populations of patients and remain the only therapeutic option for many patients. We sought to elucidate the interplay between two relevant factors (IL28B polymorphism and T cell immune responses) involved in the outcome of this therapy in HCV-infected patients. We evaluated 38 patients infected with HCV genotype 1-17 coinfected with HIV-who were undergoing a full course of pegIFNα/RBV therapy...
April 25, 2017: Journal of Interferon & Cytokine Research
https://www.readbyqxmd.com/read/28418769/persistency-of-neutralizing-anti-interferon-%C3%AE-antibodies-in-patients-with-multiple-sclerosis-treated-with-subcutaneous-interferon-%C3%AE-depends-on-antibody-titers-igg-subclasses-and-affinity-maturation
#6
Irena Dujmovic, Harald Hegen, Pedro Paz, Ed Croze, Florian Deisenhammer
Neutralizing antibodies may affect interferon (IFN)-β treatment efficacy, but mechanisms of neutralizing anti-drug antibody (ADA) evolution are not fully elucidated. We investigated the relationship between ADA titers, IgG subclass profile, and binding affinity with the development and persistency of neutralizing ADA in relapsing-remitting multiple sclerosis (MS) patients treated with subcutaneous IFN-β. A total of 94 patients, who had blood sampling at months 6, 12, 24, and 36 during IFN-β therapy, were included into this retrospective study and stratified to the following: non-neutralizing, transient, and persistent neutralizing ADA status...
April 18, 2017: Journal of Interferon & Cytokine Research
https://www.readbyqxmd.com/read/28418766/clinical-phenotype-of-depression-affects-interleukin-6-synthesis
#7
Łukasz Zadka, Piotr Dzięgiel, Michał Kulus, Marcin Olajossy
Major depressive disorder (MDD) is not a single disease, but a number of various ailments that form one entity. Psychomotor retardation, anhedonia, sleep disorders, an increased suicide risk, and anxiety are the main symptoms that often define the clinical diagnosis of depression. Interleukin-6 (IL-6), as one of the proinflammatory cytokines, seems to be overexpressed during certain mental disorders, including MDD. Overexpression of IL-6 in depression is thought to be a factor associated with bad prognosis and worse disease course...
April 18, 2017: Journal of Interferon & Cytokine Research
https://www.readbyqxmd.com/read/28414566/the-changed-proportion-of-cd45ra-cd45ro-t-cells-in-chronic-hepatitis-c-patients-during-pegylated-interferon-%C3%AE-with-ribavirin-therapy
#8
Jung-Lung Hsiao, Wang-Sheng Ko, Chia-Ju Shih, Ya-Ling Chiou
Infection with the hepatitis C virus (HCV) may progress toward chronic hepatitis, liver cirrhosis, and liver cancer. A therapy for patients with chronic HCV infection is the combination of pegylated interferon-α with ribavirin, which increases the rate of sustained virological response (SVR) to 56%. However, a practical biomarker to predict SVR is lacking. T cells expressing the CD45RA isoform are considered naive, and antigenic stimulation converts them to CD45RO(+). CD45RO(+) T cells exhibit immediate response and high lymphokine production, leading to the maintenance and upregulation of immune reactions...
April 17, 2017: Journal of Interferon & Cytokine Research
https://www.readbyqxmd.com/read/28402153/maternal-fetal-transmission-of-zika-virus-routes-and-signals-for-infection
#9
Bin Cao, Michael S Diamond, Indira U Mysorekar
The emerging mosquito-borne virus, Zika virus (ZIKV), has been causally associated with adverse pregnancy and neonatal outcomes, including miscarriage, microcephaly, serious brain abnormalities, and other birth defects indicative of a congenital ZIKV syndrome. In this review, we highlight work from human and animal studies on routes of infection in pregnancy that lead to adverse fetal and neonatal outcomes. A number of innate and adaptive immune mechanisms and signaling molecules that may have key roles in ZIKV infection pathogenesis are discussed along with putative viral entry pathways...
April 12, 2017: Journal of Interferon & Cytokine Research
https://www.readbyqxmd.com/read/28388308/identification-of-type-iii-interferon-ifn-%C3%AE-in-chinese-goose-gene-structure-age-dependent-expression-profile-and-antiviral-immune-characteristics-in-vivo-and-in-vitro
#10
Qin Zhou, Wei Zhang, Shun Chen, Anqi Wang, Lipei Sun, Mingshu Wang, Renyong Jia, Dekang Zhu, Mafeng Liu, Kunfeng Sun, Qiao Yang, Ying Wu, Xiaoyue Chen, Anchun Cheng
Type III interferons (IFN-λ1/λ2/λ3, also known as IL-29/28A/28B, and IFN-λ4) are a recently discovered interferon group. In this study, we first identified the Chinese goose IFN-λ (goIFN-λ). The full-length sequence of goIFN-λ was found to be 823 bp. There was only one open reading frame that contained 570 bp, and, encoded 189 amino acids. The predicted goIFN-λ protein showed 78%, 67%, and 40% amino acid identity with duIFN-λ, chIFN-λ, and hIFN-λ3, respectively. The tissue distribution of goIFN-λ existed as a parallel distribution with goIFNLR1 as its functional receptor, which was mainly expressed in epithelium-rich tissues, such as lung, gizzard, proventriculus, skin and pancreas, and immune tissues, such as harderian gland and thymus...
April 7, 2017: Journal of Interferon & Cytokine Research
https://www.readbyqxmd.com/read/28256939/increased-levels-of-stat1-protein-in-blood-cd4-t-cells-from-systemic-lupus-erythematosus-patients-are-associated-with-perturbed-homeostasis-of-activated-cd45ra-foxp3-hi-regulatory-subset-and-follow-up-disease-severity
#11
Aleš Goropevšek, Maksimiljan Gorenjak, Suzana Gradišnik, Klara Dai, Iztok Holc, Radovan Hojs, Ivan Krajnc, Artur Pahor, Tadej Avčin
In murine systemic lupus erythematosus (SLE), aberrant regulation of interferon (IFN)-alpha-STAT1 signaling and perturbed homeostasis of CD4(+)FOXP3(+) regulatory T cells (Tregs) were described. In the present study, STAT1 signaling and circulating Treg subsets were assessed by flow cytometry in 39 SLE patients and their potential association with disease course was examined during long-term follow-up. Levels of STAT1 protein as measured by median fluorescence intensity (MFI) were significantly increased in SLE CD4 T cells when compared with rheumatoid arthritis patients and healthy controls and were positively correlated with disease activity...
March 3, 2017: Journal of Interferon & Cytokine Research
https://www.readbyqxmd.com/read/28475463/immune-diseases-associated-with-trex1-and-sting-dysfunction
#12
Nan Yan
The innate immune system is the first line of defense against invading pathogens. One important feature of innate immune recognition is self versus nonself discrimination. The selectivity for microbial ligands is achieved through substrate motif specificity, spatial compartmentalization, and functions of negative regulators. Loss-of-function mutations in negative regulators or gain-of-function mutations in drivers of innate immune signaling have been associated with autoimmune diseases such as lupus, rheumatoid arthritis, inflammatory vasculopathy, and a variety of interferonopathies...
May 2017: Journal of Interferon & Cytokine Research
https://www.readbyqxmd.com/read/28475462/preface-to-signature-diseases-special-issue
#13
Takashi Fujita
No abstract text is available yet for this article.
May 2017: Journal of Interferon & Cytokine Research
https://www.readbyqxmd.com/read/28475461/rig-i-like-receptors-and-type-i-interferonopathies
#14
Hiroki Kato, Seong-Wook Oh, Takashi Fujita
Type I interferon (IFN) production by the proper activation of nucleic acid sensors is essential for hosts to eliminate invading viruses. Among these sensors, RIG-I-like receptors (RLRs) are well-known viral RNA sensors in the cytoplasm that recognize the nonself signatures of viral RNAs to trigger IFN responses. Recent accumulating evidence has clarified that some specific and atypical self-RNAs also cause activation of RLRs independently of virus infection. Importantly, when RLR-activation by these RNAs or a conformational change via missense mutations is sustained, the resulting continuous production of type I IFN will lead to autoimmune disorders...
May 2017: Journal of Interferon & Cytokine Research
https://www.readbyqxmd.com/read/28475460/discrimination-of-self-and-non-self-ribonucleic-acids
#15
Anna Gebhardt, Beatrice T Laudenbach, Andreas Pichlmair
Most virus infections are controlled through the innate and adaptive immune system. A surprisingly limited number of so-called pattern recognition receptors (PRRs) have the ability to sense a large variety of virus infections. The reason for the broad activity of PRRs lies in the ability to recognize viral nucleic acids. These nucleic acids lack signatures that are present in cytoplasmic cellular nucleic acids and thereby marking them as pathogen-derived. Accumulating evidence suggests that these signatures, which are predominantly sensed by a class of PRRs called retinoic acid-inducible gene I (RIG-I)-like receptors and other proteins, are not unique to viruses but rather resemble immature forms of cellular ribonucleic acids generated by cellular polymerases...
May 2017: Journal of Interferon & Cytokine Research
https://www.readbyqxmd.com/read/28475459/regnase-1-is-an-endoribonuclease-essential-for-the-maintenance-of-immune-homeostasis
#16
Takuya Uehata, Osamu Takeuchi
Regnase-1, also known as Zc3h12a or MCPIP1, is responsible for endonucleolytic cleavage of mRNAs encoding proteins involved in inflammatory responses. Furthermore, Regnase-1-mediated mRNA decay (RMD) is critical for the maintenance of immune homeostasis. Regnase-1 controls the magnitude of innate and adaptive immune responses, and thereby dysfunction of this protein in mice leads to the development of spontaneous systemic inflammation. During the last several years, advances have been made in understanding molecular mechanisms of RMD...
May 2017: Journal of Interferon & Cytokine Research
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/28387597/human-cd39-treg-cells-express-th17-associated-surface-markers-and-suppress-il-17-via-a-stat3-dependent-mechanism
#18
Jessica R Magid-Bernstein, Christine M Rohowsky-Kochan
Human CD4(+) T regulatory cells (Tregs) are a population of phenotypically and functionally diverse cells that downregulate inflammatory and autoimmune responses. As Th17 cells play an important role in the pathogenesis of autoimmune diseases, it is critical to elucidate the mechanisms regulating these cells. In this study, we examined the molecular basis underlying the phenotypic and functional diversity of human Tregs expressing the ectonucleotidase CD39. CD4(+)CD25(hi)CD39(+) Tregs inhibit the proliferative response and the secretion of IL-17 and IFN-γ of autologous CD4(+) T effector cells, while CD4(+)CD25(hi)CD39(-) Tregs only suppress IFN-γ production...
April 2017: Journal of Interferon & Cytokine Research
https://www.readbyqxmd.com/read/28387596/in-vitro-and-in-vivo-preclinical-effects-of-type-i-ifns-on-gliomas
#19
Vasiliki Galani, Stamatis S Papadatos, George Alexiou, Angeliki Galani, Athanasios P Kyritsis
The interferons (IFNs) are a family of cytokines with diverse cellular actions such as control of cell proliferation and regulation of immune responses; therefore, they have been extensively studied as antitumor agents for a variety of malignancies, including gliomas. Type I IFNs exert their antitumor effects either directly, by targeting the tumor cells or the tumor stem cells, or indirectly, by regulating the anticancer activities of the immune system. More specifically, IFN-beta and IFN-alpha exhibit antiproliferative effects by p53 induction, CD8(+) T-lymphocyte and macrophage activation, chemokine secretion, and miR-21 downregulation...
April 2017: Journal of Interferon & Cytokine Research
https://www.readbyqxmd.com/read/28387595/interferon-stimulated-gene-expression-as-a-preferred-biomarker-for-disease-activity-in-aicardi-gouti%C3%A3-res-syndrome
#20
Ben X Wang, Stephanie A Grover, Peter Kannu, Grace Yoon, Ronald M Laxer, E Ann Yeh, Eleanor N Fish
Aicardi-Goutières syndrome (AGS) is an early-onset, genetic disease characterized by recurrent fever, multifocal lesions of the brain, and systemic autoimmunity. We report on 3 AGS patients, 2 siblings with an RNASEH2A gene mutation and 1 patient with a SAMHD1 gene mutation. Serial analysis of peripheral blood from all 3 AGS patients showed consistently elevated expression of the interferon-stimulated genes (ISGs): ISG15, RSAD2, and IFI27, not observed in unaffected family members. Enumeration of circulating white blood cells and platelets and examination of C-reactive protein showed no significant deviation from the normal range for Patient 2 with the RNASEH2A mutation and Patient 3 with the SAMHD1 mutation, even when Patient 2 had magnetic resonance imaging abnormalities and ongoing febrile episodes...
April 2017: Journal of Interferon & Cytokine Research
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