TY - BOOK A1 - Bock, Stefanie A1 - Gauch, Fabian A1 - Giernat, Yannik A1 - Hillebrand, Frank A1 - Kozlova, Darja A1 - Linck, Lisa A1 - Moschall, Rebecca A1 - Sauer, Markus A1 - Schenk, Christian A1 - Ulrich, Kristina A1 - Bodem, Jochen T1 - HIV-1 : Lehrbuch von Studenten für Studenten T1 - HIV-1 : a textbook for students written by students N2 - Dies ist ein Lehrbuch über die HIV-1 Replikation, Pathogenese und Therapie. Es richtet sich an Studenten der Biologie und der Medizin, die etwas mehr über HIV erfahren wollen und stellt neben virologischen Themen auch die zellulären Grundlagen dar. Es umfasst den Viruseintritt, die reverse Transkription, Genom-Integration, Transkriptionsregualtion, die Kotrolle des Spleißens, der Polyadenylierung und des RNA-Exportes. Die Darstellung wird abgerundet mit Kapiteln zum intrazellulärem Transport, zu Nef und zum Virusassembly. In zwei weiteren Kapitel wird die HIV-1 Pathogenese und die Therapie besprochen. Zur Lernkontrolle sind den Kapiteln Fragen und auch Klausurfragen angefügt. KW - HIV KW - Retroviren KW - Lehrbuch KW - Viren KW - Virologie KW - Transkription KW - RNS KW - Therapie KW - Pathogenese KW - Epidemiologie KW - RNA-Export KW - Polyadenylierung KW - Reverse Transkription KW - Transkription Y1 - 2013 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-78980 SN - 978-3-923959-90-7 ER - TY - JOUR A1 - Jacobs, Graeme A1 - Bock, Stefanie A1 - Schuch, Anita A1 - Moschall, Rebecca A1 - Schrom, Eva-Maria A1 - Zahn, Juliane A1 - Reuter, Christian A1 - Preiser, Wolfgang A1 - Rethwilm, Axel A1 - Engelbrecht, Susan A1 - Krekau, Thomas A1 - Bodem, Jochen T1 - Construction of a high titer Infectious HIV-1 subtype C proviral clone from South Africa N2 - The Human Immunodeficiency Virus type 1 (HIV-1) subtype C is currently the predominant subtype worldwide. Cell culture studies of Sub-Saharan African subtype C proviral plasmids are hampered by the low replication capacity of the resulting viruses, although viral loads in subtype C infected patients are as high as those from patients with subtype B. Here, we describe the sequencing and construction of a new HIV-1 subtype C proviral clone (pZAC), replicating more than one order of magnitude better than the previous subtype C plasmids. We identify the env-region for being the determinant for the higher viral titers and the pZAC Env to be M-tropic. This higher replication capacity does not lead to a higher cytotoxicity compared to previously described subtype C viruses. In addition, the pZAC Vpu is also shown to be able to down-regulate CD4, but fails to fully counteract CD317. KW - HIV KW - HIV-1; subtype C; proviral plasmid; viral replication; resistance assays; Vpu; CD317; CD4 Y1 - 2012 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-76340 ER - TY - JOUR A1 - Rolfes, Leoni A1 - Ruck, Tobias A1 - David, Christina A1 - Mencl, Stine A1 - Bock, Stefanie A1 - Schmidt, Mariella A1 - Strecker, Jan-Kolja A1 - Pfeuffer, Steffen A1 - Mecklenbeck, Andreas-Schulte A1 - Gross, Catharina A1 - Gliem, Michael A1 - Minnerup, Jens A1 - Schuhmann, Michael K. A1 - Kleinschnitz, Christoph A1 - Meuth, Sven G. T1 - Natural Killer Cells Are Present in Rag1\(^{−/−}\) Mice and Promote Tissue Damage During the Acute Phase of Ischemic Stroke JF - Translational Stroke Research N2 - Rag1\(^{−/−}\) mice, lacking functional B and T cells, have been extensively used as an adoptive transfer model to evaluate neuroinflammation in stroke research. However, it remains unknown whether natural killer (NK) cell development and functions are altered in Rag1\(^{−/−}\) mice as well. This connection has been rarely discussed in previous studies but might have important implications for data interpretation. In contrast, the NOD-Rag1\(^{null}\)IL2rg\(^{null}\) (NRG) mouse model is devoid of NK cells and might therefore eliminate this potential shortcoming. Here, we compare immune-cell frequencies as well as phenotype and effector functions of NK cells in Rag1\(^{−/−}\) and wildtype (WT) mice using flow cytometry and functional in vitro assays. Further, we investigate the effect of Rag1\(^{−/−}\) NK cells in the transient middle cerebral artery occlusion (tMCAO) model using antibody-mediated depletion of NK cells and adoptive transfer to NRG mice in vivo. NK cells in Rag1\(^{−/−}\) were comparable in number and function to those in WT mice. Rag1\(^{−/−}\) mice treated with an anti-NK1.1 antibody developed significantly smaller infarctions and improved behavioral scores. Correspondingly, NRG mice supplemented with NK cells were more susceptible to tMCAO, developing infarctions and neurological deficits similar to Rag1−/− controls. Our results indicate that NK cells from Rag1−/− mice are fully functional and should therefore be considered in the interpretation of immune-cell transfer models in experimental stroke. Fortunately, we identified the NRG mice, as a potentially better-suited transfer model to characterize individual cell subset-mediated neuroinflammation in stroke. KW - infarction KW - middle cerebral artery occlusion KW - animal model KW - inflammation KW - natural killer cells Y1 - 2022 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-308924 SN - 1868-4483 SN - 1868-601X VL - 13 IS - 1 ER -