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Induction of type I interferons and viral immunity /Hidmark, Åsa, January 2007 (has links)
Diss. (sammanfattning) Stockholm : Karolinska institutet, 2007. / Härtill 4 uppsatser.
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A study of human interferon-induced IFI60 protein and STAT1 gene regulationSim, Helena Y. (Helena, Yin Yee), 1973- January 2002 (has links)
Abstract not available
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Regulation of Type I interferon responsesFenner, Jennifer Eve January 2003 (has links)
Abstract not available
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Investigating the Role of Interferon Regulatory Factor 3 in Response to Genotoxic StressDavidson, Adam 21 August 2013 (has links)
Interferon regulatory factor 3 (IRF3) plays an important role in activating the innate immune response in a variety of conditions, including viral infection. As well as regulating the immune response to viruses, IRF3 is involved in regulating cellular functions including apoptosis. Apoptosis and the inflammatory response to viral infection are very different; therefore, it is obvious that IRF3 plays dramatically different roles in the cell depending on the conditions. We previously
identified a non-activating phosphorylation of IRF3 in response to adenovirus (Ad) in which Serine-173 is phosphorylated. In addition to Ad infection, IRF3- S173 is phosphorylated in response to genotoxic stresses including ultraviolet (UV) irradiation and etoposide. In this study, I show that this phosphorylation event is involved in a variety of processes including protein stability, cell survival and IRF3 regulation. Thus, phosphorylation of IRF3-S173 is a novel and important event in a complex regulatory pathway of an integral protein.
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The type I IFN of Bos taurusWalker, Angela Marie, Roberts, R. M. January 2008 (has links)
The entire dissertation/thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file (which also appears in the research.pdf); a non-technical general description, or public abstract, appears in the public.pdf file. Title from PDF of title page (University of Missouri--Columbia, viewed on April 1, 2010). Vita. Thesis advisor: R. Michaels Roberts. "May 2008" Includes bibliographical references
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Studies on interferon producing human blood leukocytesRönnblom, Lars. January 1983 (has links)
Thesis (doctoral)--University of Uppsala, 1983. / Bibliography: p. 32-37.
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Oncolytic therapy with vaccinia virus GLV-1h68 comparative microarray analysis of infected xenografts and human tumor cell linesWorschech, Andrea. Unknown Date (has links)
Univ., Diss., 2010--Würzburg.
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Investigating the Role of Interferon Regulatory Factor 3 in Response to Genotoxic StressDavidson, Adam January 2013 (has links)
Interferon regulatory factor 3 (IRF3) plays an important role in activating the innate immune response in a variety of conditions, including viral infection. As well as regulating the immune response to viruses, IRF3 is involved in regulating cellular functions including apoptosis. Apoptosis and the inflammatory response to viral infection are very different; therefore, it is obvious that IRF3 plays dramatically different roles in the cell depending on the conditions. We previously
identified a non-activating phosphorylation of IRF3 in response to adenovirus (Ad) in which Serine-173 is phosphorylated. In addition to Ad infection, IRF3- S173 is phosphorylated in response to genotoxic stresses including ultraviolet (UV) irradiation and etoposide. In this study, I show that this phosphorylation event is involved in a variety of processes including protein stability, cell survival and IRF3 regulation. Thus, phosphorylation of IRF3-S173 is a novel and important event in a complex regulatory pathway of an integral protein.
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Défenses innées antivirales du poisson zèbre : de la signalisation aux cellules specialisées / Innate antiviral defense of zebrafish : from signalling to specialized cellsAleksejeva, Elina 20 January 2016 (has links)
Cette thèse est basée sur deux projets principaux: (1) l'étude de la réponse innée antivirale du poisson zèbre, en particulier des voies de signalisation des interférons de type I et (2) l'étude de leucocytes particuliers localisés au voisinage des neuromastes, structures permettant au poisson de percevoir le flux d'eau qu'il traverse et constituant potentiellement des brèches dans la peau de l'animal. La voie des IFN de type I est le principal composant de l'immunité antivirale innée. Dans cette thèse, deux types de protéines de poisson-zèbre capables d'augmenter l'induction des IFN de type I ont été étudiés. Nous avons montré que les deux orthologues chez le poisson zèbre du facteur de transcription à domaine BTB/POZ nommé PLZF (Promyelocytic leukemia zinc finger) augmentent l'induction de l'Ifn par différents stimuli. Ce travail montre que l'implication de PLZF dans la régulation de la voie IFN est ancienne et peut intervenir à différents niveaux de la voie Ifn. Le second modèle étudié est le gène Ftr83 (finTRIM83), qui appartient à un groupe de TRIM très diversifié et spécifique des poissons. L'expression de cette protéine TRIM induit une très forte induction des Ifn de type I et une protection contre différents virus, via la surexpression de différents ISGs. Ftr83 est exprimé dans la peau et dans les branchies, régions très exposées aux pathogènes, et son niveau d'expression est fortement corrélé au niveau d'expression de l'Ifn. Dans cette thèse, une lignée transgénique où les cellules spécifiquement fluorescentes évoquent des leucocytes localisés à proximité des neuromastes a été étudiée. Ces cellules ont été observées, leurs mouvements suivis et leur transcriptome analysé par séquençage profond après tri au FACS. Cette analyse a identifié des marqueurs typiques de cellules myéloides (macrophages, dendritiques); ces observations sont cohérentes avec l'idée de cellules sentinelles autour des neuromastes. / This thesis is based on the studies of two aspects of innate immunity in zebrafish: 1) proteins involved in the regulation of type I interferon (Ifn) and 2) specialized myeloid cells that patrol neuromasts – mechano-sensory organs embed in the skin that could be pathogen entry sites. In this thesis two different proteins are described for the capability to enhance Ifn production. In one part, two zebrafish orthologues of mammalian transcription factor PLZF (Promyelocytic leukemia zinc finger) are shown to augment type I Ifn and ISG in response to double-stranded RNA viruses. PLZF is a BTB/POZ transcription factor that was recently shown to induce a subset of ISG, in human and mouse. Thus, zebrafish Plzf proteins can operate at multiple steps in the Ifn system. Furthermore, their activity was not dependent on the presence of BTB-domain implying that the underlying mechanism is different from the usual mode of action of BTB/POZ transcription factors. In the second part, fish-specific TRIM ubiquitin ligase - Ftr83 (Fish novel tripartite motif protein 83), mounted a strong anti-viral protection through the upregulation of Ifn. Interestingly a strong correlation between the expression of Ftr83 and Ifn was seen in the gills suggesting that Ftr83 might maintain a low basal level of Ifn signalling in organs constantly exposed to pathogens. In the second part, a GFP reporter transgenic line called medaktin:EGFP has been characterized. It marks leukocytes in the skin surrounding neuromasts. Deep sequencing revealed that these cells express several macrophage and dendritic cell markers, including genes involved in autophagy, microbicidial functions and antigen presentation, thus highlighting them as possible sentinel cells.
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Genetic polymorphisms of type I interferon receptor 1 affect the susceptibility to chronic HBV infection: association analysis and mechanistic investigation周婕, Zhou, Jie January 2007 (has links)
published_or_final_version / abstract / Microbiology / Doctoral / Doctor of Philosophy
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