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| Content Provider | Royal Society of Chemistry (RSC) |
|---|---|
| Author | Schaper, Fred Samaga, Regina Ryll, Anke Klamt, Steffen Alexopoulos, Leonidas G. |
| Copyright Year | 2011 |
| Abstract | The pro-inflammatory cytokines interleukin 1 (IL-1) and 6 (IL-6) are crucially involved in the regulation of a multitude of physiological processes, in particular coordinating the immune response upon bacterial infection and tissue injury. Both interleukins induce complex signalling cascades and trigger the production of mitogenic, pro-proliferative, anti-apoptotic, chemotactic, and pro-angiogenic factors thereby affecting the delicate balance between regenerationvs. invasive growth, tumourigenesis and metastasis. Moreover, several links to insulin resistance have been found within their associated signalling networks. Focusing on this from a systems biology perspective, we introduce comprehensive large-scale network models of IL-1 and IL-6 signalling which are based on a logical modelling approach and reflect the current biological knowledge. Theoretical network analysis enabled us to uncover general topological features and to make testable predictions on the stimulus-response behaviour of the networks. In this context, non-intuitive network-wide species dependencies as well as structures of regulatory feedback and feed-forward mechanisms could be characterised. By integrating high-throughput phosphoproteomic data from primary human hepatocytes we optimised the model structures to obtain models with high prediction accuracy for hepatocytes. Our model-based data analysis, for instance, suggested model modifications regarding (i) Akt contribution to IL-1-stimulated p38 MAPK activation and (ii) insignificant p38 MAPK activation in response to IL-6. In light of the presented results and in conjunction with the detailed model documentations, both models hold great potential for theoretical studies and practical applications. |
| Starting Page | 3253 |
| Ending Page | 3270 |
| Page Count | 18 |
| File Format | HTM / HTML PDF |
| ISSN | 1742206X |
| Volume Number | 7 |
| Issue Number | 12 |
| Journal | Molecular BioSystems |
| DOI | 10.1039/c1mb05261f |
| Language | English |
| Publisher | Royal Society of Chemistry |
| Access Restriction | Open |
| Subject Keyword | Interleukin-1 family Interleukin 6 Network theory Protein kinase B Hepatocyte Systems biology P38 mitogen-activated protein kinases Mitogen-activated protein kinase Insulin resistance Metastasis Carcinogenesis Cell signaling |
| Content Type | Text |
| Resource Type | Article |
| Subject | Molecular Biology Biotechnology |
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