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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Haegeman, G. Fiers, W. Vandevoorde, V. |
| Description | Author Affiliation: Vandevoorde V ( Laboratory of Molecular Biology, Flanders Interuniversity Institute for Biotechnology and University of Ghent, B-9000 Ghent, Belgium.) |
| Abstract | The various biological activities of tumor necrosis factor (TNF) are mediated by two receptors, one of 55 kD (TNF-R55) and one of 75 kD (TNF-R75). Although the phenotypic and molecular responses elicited by TNF in different cell types are fairly well characterized, the signaling pathways leading to them are so far only partly understood. To further unravel these processes, we focused on TNF-R55, which is responsible for mediating most of the known TNF effects. Since several studies have demonstrated the importance of receptor clustering and consequently of close association of the intracellular domains for signaling, we addressed the question of whether clustering of the intracellular domains of TNF-R55 (TNF-R55i) needs to occur in structural association with the inner side of the cell membrane, where many signaling mediators are known to reside. Therefore, we investigated whether induced intracellular clustering of only TNF-R55i would be sufficient to initiate and generate a full TNF response, without the need for a full-length receptor molecule or a transmembrane region. Our results provide clear evidence that inducible forced trimerization of either TNF-R55i or only the death domain elicits an efficient TNF response, comprising activation of the nuclear factor κB, induction of interleukin-6, and cell killing. |
| ISSN | 00219525 |
| e-ISSN | 15408140 |
| Journal | The Journal of Cell Biology |
| Issue Number | 7 |
| Volume Number | 137 |
| Language | English |
| Publisher | Rockefeller University Press (United States) |
| Publisher Date | 1997-06-30 |
| Publisher Place | United States |
| Access Restriction | Open |
| Subject Keyword | Receptors, Tumor Necrosis Factor Metabolism Tumor Necrosis Factor-alpha Dimerization Mutagenesis, Site-Directed Chemistry Genetics Tumor Cells, Cultured Research Support, Non-U.S. Gov't Cell Biology |
| Content Type | Text |
| Resource Type | Article |
| Subject | Cell Biology Medicine |
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