Please use this identifier to cite or link to this item:
http://doi.org/10.25358/openscience-1428Full metadata record
| DC Field | Value | Language |
|---|---|---|
| dc.contributor.author | Barbulescu, Karina | |
| dc.date.accessioned | 1999-12-31T23:00:00Z | |
| dc.date.available | 2000-01-01T00:00:00Z | |
| dc.date.issued | 2000 | |
| dc.identifier.uri | https://openscience.ub.uni-mainz.de/handle/20.500.12030/1430 | - |
| dc.description.abstract | Interferon-gamma is mainly produced by activated T helper cells and cytotoxic T lymphocytes and sustains the immune-defense against viral and bacterial infections. For a better understanding of IFN-gamma promoter regulation in T cells, different DNA-binding motivs were examined. Hereby, a new motiv (-196 to -183) was identified, that binds to the transcription factor AP-1 in T helper cells and Jurkat T cells. This factor acts as an essential activator protein. Further investigation demonstrated that IL-12 and IL-18 induce different regulatory pathways. Both AP-1 and STAT-4 bindings at their cognate DNA elements (-196 to -183 and -224 to -215) are required for the IL-12 dependent activation whereas IL-18 causes direct activation via AP-1.Moreover, the TH2 cytokine IL-4 represses significantly the IFN-gamma promoter activity in CD4+ T cells. IL-4 induces GATA-3, that interacts with two DNA-motivs (-111 to -87) at the IFN-gamma promoter.Furthermore, transgenic mice were generated, yielding a human IFN-gamma promoter construct (410 bp) under the control of a luciferase reporter gene. The data demonstrated a specific IFN-gamma promoter activation by antiCD3 plus antiCD28 in CD4+ and CD8+ T cells. The luciferase activty in CD4+ T cells was reinforced by addition of IL-12 and IL-18 and repressed by IL-4. | en_GB |
| dc.language.iso | ger | |
| dc.rights | InCopyright | de_DE |
| dc.rights.uri | https://rightsstatements.org/vocab/InC/1.0/ | |
| dc.subject.ddc | 570 Biowissenschaften | de_DE |
| dc.subject.ddc | 570 Life sciences | en_GB |
| dc.title | Transkriptionelle Regulation des humanen Interferon-gamma-Promotors in T-Lymphocyten | de_DE |
| dc.type | Dissertation | de_DE |
| dc.identifier.urn | urn:nbn:de:hebis:77-353 | |
| dc.identifier.doi | http://doi.org/10.25358/openscience-1428 | - |
| jgu.type.dinitype | doctoralThesis | |
| jgu.type.version | Original work | en_GB |
| jgu.type.resource | Text | |
| jgu.organisation.department | FB 10 Biologie | - |
| jgu.organisation.year | 2000 | |
| jgu.organisation.number | 7970 | - |
| jgu.organisation.name | Johannes Gutenberg-Universität Mainz | - |
| jgu.rights.accessrights | openAccess | - |
| jgu.organisation.place | Mainz | - |
| jgu.subject.ddccode | 570 | |
| opus.date.accessioned | 1999-12-31T23:00:00Z | |
| opus.date.modified | 1999-12-31T23:00:00Z | |
| opus.date.available | 2000-01-01T00:00:00 | |
| opus.organisation.string | FB 10: Biologie: FB 10: Biologie | de_DE |
| opus.identifier.opusid | 35 | |
| opus.institute.number | 1000 | |
| opus.metadataonly | false | |
| opus.type.contenttype | Dissertation | de_DE |
| opus.type.contenttype | Dissertation | en_GB |
| jgu.organisation.ror | https://ror.org/023b0x485 | |
| Appears in collections: | JGU-Publikationen | |
