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Academic literature on the topic 'Transkriptionsfaktor Foxp3'
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Journal articles on the topic "Transkriptionsfaktor Foxp3"
Käsmann-Kellner, Barbara, Kayed Moslemani, and Berthold Seitz. "Klinik und Genetik von Augenentwicklungsstörungen: MAC-Spektrum und Vorderabschnittsdysgenesien." Klinische Monatsblätter für Augenheilkunde 236, no. 03 (February 8, 2019): 269–85. http://dx.doi.org/10.1055/a-0809-5523.
Full textDissertations / Theses on the topic "Transkriptionsfaktor Foxp3"
Freyer, Jennifer Sandra Silvia. "Regulation und funktionelle Rolle des murinen Transkriptionsfaktors Foxp3 in T-Zellen." Doctoral thesis, Humboldt-Universität zu Berlin, Mathematisch-Naturwissenschaftliche Fakultät I, 2008. http://dx.doi.org/10.18452/15841.
Full textThe aim of the study was to analyze the function and regulation of the transcription factor Foxp3. In a first step we designed a BAC-transgenic mouse with eYFP under the control of the Foxp3 promoter. For creating these mice we use the ET- cloning method. The step of homologous recombination of the target vector into the BAC failed. Because of that, we decided to work in cooperation with the group of Tim Sparwasser from Munich and their BAC- transgenic mouse called DEREG- mouse. This mouse expresses the coding region of eGFP fused to the diphtheria- toxin- receptor under the control of the Foxp3 promoter. Therefore Foxp3+ T cells can be easily detected by eGFP expression and can even be depleted by diphtheria- toxin- application. We confirmed the co- expression of Foxp3 and eGFP and furthermore tested the functionality of the depletion- process of Foxp3+ T cells by treatment with diphtheria- toxin. In a second study, we analyzed the stability of Foxp3 expressing cells in vivo. Therefore we transferred Foxp3+ T cells in syngenic mice and analyzed these cells after 14 days for their Foxp3- expression. Furthermore, we tested the induction of Foxp3 expression through TGF-beta and the suppressive activity of these cells. We also analyzed those cells for their methylation pattern, comparing cells, which showed an induction of Foxp3- expression after one week of culture with TGF-beta to cells, which received TGF-beta for one week and were then restimulated in the absence of TGF-beta. The stability of Foxp3 expression seems to correlate with the demethylated state of the TSDR (Treg Specific Demethylated Region). To get a closer look on the region called TSDR in the murine foxp3 locus, we decided to analyze this region under different aspects. First, we checked for putative binding sites of transcription factors by database analysis of the TSDR. We also analysed histon modifications, such as acetylation of histon H3 and H4 and tri- methylation of lysine 4 at histon3, in this region. Presence of these modifications hinted an epigenetic regulation of Foxp3 involving the TSDR. In a last step, the transcriptional activity of TSDR was tested to delineate whether the TSDR serves as an alternative promoter or acts as a regulative element like an enhancer. Luciferase assays showed that TSDR is a regulative enhancer element, which loses transcriptional activity when methylated. Deletion mutants determined the most important fragment of the TSDR.
Ocklenburg, Frank. "Bedeutung des Transkriptionsfaktors Foxp3 für die T-Zell-Funktion." [S.l. : s.n.], 2005. http://deposit.ddb.de/cgi-bin/dokserv?idn=976625423.
Full textLindmayer, Christian [Verfasser], and Sebastian [Akademischer Betreuer] Grundmann. "Die Rolle des Transkriptionsfaktors FoxP1 beim Blutgefäßwachstum." Freiburg : Universität, 2021. http://d-nb.info/1236846036/34.
Full textMailer, Reiner Karl Walter [Verfasser]. "Funktion natürlicher Isoformen des Transkriptionsfaktors FOXP3 in regulatorischen CD4+ T-Zellen / Reiner Karl Walter Mailer." Berlin : Freie Universität Berlin, 2009. http://d-nb.info/1023708558/34.
Full textStargardt, Elena [Verfasser], and Gudrun [Akademischer Betreuer] Rappold. "Identifizierung von Zielgenen des Transkriptionsfaktors Foxp1 während der Gehirnentwicklung / Elena Stargardt ; Betreuer: Gudrun Rappold." Heidelberg : Universitätsbibliothek Heidelberg, 2013. http://d-nb.info/1177382806/34.
Full textVäth, Martin [Verfasser], and Friederike [Akademischer Betreuer] Berberich-Siebelt. "Regulation der peripheren immunologischen Toleranz durch die Transkriptionsfaktoren ICER, NFAT und Foxp3 / Martin Väth. Betreuer: Friederike Berberich-Siebelt." Würzburg : Universitätsbibliothek der Universität Würzburg, 2013. http://d-nb.info/1031380191/34.
Full textHäußermann, Katharina [Verfasser], Hendrik [Akademischer Betreuer] Dietz, Hendrik [Gutachter] Dietz, and Friedrich [Gutachter] Simmel. "Zeitaufgelöste Interaktionsanalyse des humanen Transkriptionsfaktors FOXP2 / Katharina Häußermann ; Gutachter: Hendrik Dietz, Friedrich Simmel ; Betreuer: Hendrik Dietz." München : Universitätsbibliothek der TU München, 2018. http://d-nb.info/1160381402/34.
Full textOcklenburg, Frank [Verfasser]. "Bedeutung des Transkriptionsfaktors Foxp3 für die T-Zell-Funktion / von Frank Ocklenburg." 2005. http://d-nb.info/976625423/34.
Full textVäth, Martin. "Regulation der peripheren immunologischen Toleranz durch die Transkriptionsfaktoren ICER, NFAT und Foxp3." Doctoral thesis, 2011. https://nbn-resolving.org/urn:nbn:de:bvb:20-opus-67527.
Full textDiscrimination between self and nonself is a major challenge during a specific immune reaction. Pathological alterations of this fine boundary can cause severe autoimmune diseases, such as Diabetes Mellitus, Rheumatoid Arthritis or Multiple Sclerosis. In order to prevent unwanted (auto-) immune reactions, several mechanisms of peripheral tolerance exist. Transcription factors, including ICER (inducible cAMP early repressor), NFAT (nuclear factor of activated T cells), and Foxp3 (forkhead box protein p3), are critical components thereby. Foxp3+ regulatory T cells (Tregs) are specialized immune-suppressive lymphocytes and inhibit the activation of conventional immune cells. One mechanism of Treg-mediated suppression is the transfer of cyclic adenosine-monophosphat (cAMP) from Treg cells into conventional T- and B-lymphocytes. Elevated concentrations of cAMP induce the transcription and subsequent nuclear translocation of ICER. The transcriptional repressor ICER arrests expression of NFAT-regulated genes and even the induction of the short NFATc1/αA-isoform. Upregulation of NFATc1/αA is a hallmark of activated effector cells, controlling their transcriptional program. Foxp3 is essential for the development and function of thymus-derived nTregs as well as peripheral (TGFβ-) induced iTregs. The Foxp3-gene is regulated in iTregs – but surprisingly not in nTregs – by NFAT-factors. Likewise, Foxp3 represses NFATc1/αA in a negative feedback loop and, thereby, controls both plasticity and function of immune-suppressive Treg cells. In addition, NFAT-proteins also affect antigen-presenting dendritic cells (DCs). While NFATc1 and NFATc2 influence differentiation and proliferation of DCs, NFATc3 is important for cytokine secretion and the subsequent T cell response. Taken together, these results show that the transcription factors ICER, NFAT, and Foxp3 exert specific functions in controlling both immunity and tolerance, the opposing „faces“ of the immune system. The appropriate transcriptional regulation of this ambivalent situation is a requisite to achieve optimal immune responses and, coincidentally, to prevent deleterious (auto-) immune reactions
Freyer, Jennifer Sandra Silvia [Verfasser]. "Regulation und funktionelle Rolle des murinen Transkriptionsfaktors Foxp3 in T-Zellen / Jennifer Sandra Silvia Freyer geb. Bohnen." 2008. http://d-nb.info/991997441/34.
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