Regulation of IL-6 signal transduction, contributions of the signal regulatory protein (SIRP) and cyclic AMP [Elektronische Ressource] / vorgelegt von Radoslaw, Mikolaj Sobota
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English

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Regulation of IL-6 signal transduction, contributions of the signal regulatory protein (SIRP) and cyclic AMP [Elektronische Ressource] / vorgelegt von Radoslaw, Mikolaj Sobota

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81 pages
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Regulation of IL-6 signal transduction, contributions of the Signal Regulatory Protein (SIRP) and cyclic AMP Von der Fakultät für Mathematik, Informatik und Naturwissenschaften der Rheinisch-Westfälischen Technischen Hochschule Aachen zur Erlangung des akademischen Grades eines Doktors der Naturwissenschaften genehmigte Dissertation vorgelegt von Master of Science, Biology Radoslaw, Mikolaj Sobota aus Czestochowa (Polen) Berichter: Univ.-Prof. Dr. rer. nat. Peter C. Heinrich Priv.-Doz. Dr. rer. nat. Christoph Peterhänsel Tag der mündlichen Prüfung: 5. Oktober 2007 Diese Dissertation ist auf den Internetseiten der Hochschulbibliothek online verfügbar. follow your dreams... Content of this thesis is enclosed in following publications: • SIRP/SHPS contributes to interleukin-6 signalling. Sobota R.M., Müller J.P., Ullrich A., Noguchi T., Heinrich P.C., Schaper F. Manuscript to be submitted • Inhibition of interleukin-6-mediated signal transduction and gene expression through the adenylate cyclase pathway. Sobota R.M., Müller P.J., Heinrich P.C., Schaper F. Manuscript to be submitted Further publications: • Mechanisms of SOCS3 phosphorylation upon IL-6 stimulation: Contributions of Src- and receptor tyrosine kinases Sommer U.

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Publié par
Publié le 01 janvier 2007
Nombre de lectures 6
Langue English
Poids de l'ouvrage 6 Mo

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Regulation of IL-6 signal transduction, contributions of the Signal Regulatory Protein (SIRP) and cyclic AMP Von der Fakultät für Mathematik, Informatik und Naturwissenschaften der Rheinisch-Westfälischen Technischen Hochschule Aachen zur Erlangung des akademischen Grades eines Doktors der Naturwissenschaften genehmigte Dissertation  vorgelegt von Master of Science, Biology Radoslaw, Mikolaj Sobota aus Czestochowa (Polen)
 Berichter: Univ.-Prof. Dr. rer. nat. Peter C. Heinrich  Priv.-Doz. Dr. rer. nat. Christoph Peterhänsel Diese Dissertation ist auf den Internetseiten der Hochschulbibliothek online verfügbar.
Tag der mündlichen Prüfung: 5. Oktober 2007
follow your dreams...
Content of this thesis is enclosed in following publications: SIRP/SHPS contributes to interleukin-6 signalling. Sobota R.M., Müller J.P., Ullrich A., Noguchi T., Heinrich P.C., Schaper F. Manuscript to be submitted Inhibition of interleukin-6-mediated signal transduction and gene expression through the adenylate cyclase pathway. Sobota R.M., Müller P.J., Heinrich P.C., Schaper F. Manuscript to be submittedFurther publications: Mechanisms of SOCS3 phosphorylation upon IL-6 stimulation: Contributions of Src- and receptor tyrosine kinasesSommer U., Schmid C.,Sobota R.M., Lehmann U.,StevensonN.J., Johnston J.A., Schaper F., Heinrich P.C., Haan S. The Journal of Biological Chemistry2005, 280: 31478Dual function of interleukin-1beta for the regulation of interleukin-6-induced suppressor of cytokine signalling 3 expression.  Yang X.P., Albrecht U., Zakowski V.,Sobota R.M.Haussinger D., Heinrich P.C., Ludwig S.,,  Bode J.G, Schaper F. The Journal of Biological Chemistry2004, 279: 45279 The role of the inhibitors of interleukin-6 signal transduction SHP2 and SOCS3 for  desensitisation of interleukin-6 signalling Fischer P., Lehmann U.,Sobota R.M., Schmitz J.,Yoshimura A., Niemand C., Haan S., Johnston J.A., Behrmann I., Müller-Newen G., Heinrich P.C., Schaper F. Biochemical Journal2004, 378: 449 SHP2 and SOCS3 contribute to Tyr-759-dependent attenuation of interleukin-6 signalling through gp130. Lehmann U., Schmitz J., Weissenbach M.,Sobota R.M., Hortner M., Friederichs K., Behrmann I., Tsiaris W., Sasaki A., Schneider-Mergener J., Yoshimura A., Neel B.G., Heinrich P.C., Schaper F. The Journal of Biological Chemistry2003, 278: 661 Autocrine stimulation by oncostatin M but resistance to leukemia inhibitory factor in astrocytoma cells expressing OSM and LIF Kasza A., Rogowski K., Kilarski W.,Sobota R., Bernaś Dobrucki J., Travis J., Koj A., T., Bugno M. and Kordula T. Biochemical Journal2001, 355: 307 Signal transduction of IL-6, leukemia-inhibitory factor, and oncostatin M: Structural receptor requirements for signal attenuation Anhuf D., Weissenbach M., Schmitz J.,Sobota R., Hermanns H.M., Radtke S., Linnemann S., Behrman I., Heinrich P.C., Schaper F. The Journal of Immunology2000, 165: 2535 Parthenolide inhibits activation of signal transducers and activators transcription (STATs) induced by cytokines of IL-6 family Sobota. R., Szwed M., Kasza A., Bugno M., Kordula T. Biochem Biophys Res Commun2000, 267: 329
Index
I
INDEX INDEX..........................................................................................................................IABBREVIATIONS.....................................................................................................IV1..............1................................................................................I....OI.NUDTCTNOR1.1Cytokines ................................................................................................................ 11.2Interleukin 6-type cytokines.................................................................................. 11.3Inkieurlte-n.6.............................................................................................2..............1.4IL-6 signal transduction ........................................................................................ 31.4.1 3 ...............................................................................................Jak/STAT pathway1.4.2pathways activated in response to IL-6.............................................. 4Alternative 1.5Regulation of the IL-6 signalling pathway ........................................................... 51.5.1SH2 domain containing tyrosine phosphatase 2 (SHP2) 5 .....................................1.5.2 ................................................................................................... 6SOCS proteins1.5.3Signal regulatory protein (SIRP) .......................................................................... 61.6Prostaglandins ....................................................................................................... 71.6.1Prostaglandin E1- biological functions ................................................................. 81.6.2Prostaglandin E-type receptors and signalling..................................................... 91.7..................................................................esinokemCh........................................9..1.7.1Monocyte chemotactic protein 1 (MCP-1/CCL2)................................................ 111.8Aim of the study ................................................................................................... 112.MATERIAL AND METHODS .............................................................................132.1 13Reagents ...............................................................................................................2.1.1Chemicals .......................................................................................................... 132.1.2Cytokines, soluble receptors and inhibitors........................................................ 132.1.3Tissue culture reagents...................................................................................... 132.1.4Antibodies .......................................................................................................... 142.1.5DNA Constructs ................................................................................................. 142.1.6DNA oligonucleotides......................................................................................... 142.1.7Cell lines............................................................................................................. 152.2Methods ................................................................................................................ 152.2.1Cell culture ......................................................................................................... 152.2.2Prokaryotic cells ................................................................................................. 162.2.3 16 .....................................................................Preparation of competent bacteria2.3General protocols for molecular biology........................................................... 172.3.1 17 ...................................................DNA digestion with restriction endonucleases2.3.2Agarose gel electrophoresis............................................................................... 172.3.3Isolation of DNA fragments from the agarose gel .............................................. 172.3.4Dephosphorylation of DNA................................................................................. 172.3.5 18DNA-ligation .......................................................................................................2.3.6 18 ...................................................................................Chemical Transformation2.3.7 18Preparative DNA isolation ..................................................................................2.3.8Polymerase Chain Reaction (PCR).................................................................... 182.3.9Isolation of total RNA ......................................................................................... 192.3.10Reverse transcription reaction (RT) ................................................................... 192.3.11Synthesis of DNA oligos..................................................................................... 202.4Transient transfection ......................................................................................... 20
Index
II
2.5Retroviral infection .............................................................................................. 202.6Cell lysis ............................................................................................................... 202.6.1Measurements of the protein concentration....................................................... 212.6.2 21Immunoprecipitation (IP) ....................................................................................2.7SDS-polyacrylamide gel electrophoresis .......................................................... 212.7.1Semi-dry protein transfer.................................................................................... 222.7.2 ................................................................................................. 23Western blotting2.8 23 .......................................................Fluorescence-assisted cell sorting (FACS)2.9Determination of MCP-1 expression .................................................................. 242.10Measurement of cAMP ........................................................................................ 242.11Luciferase reporter gene assay 24 ..........................................................................3.RESULTS ..........................................................................................................263.1SHP2 associates with SIRPα 26 .........................................upon IL-6 stimulation3.2Characterisation of SIRPαdeficient cells .......................................................... 273.2.1Genotyping of knockout cells ............................................................................. 273.2.2SIRPαexpression on the surface of MEF cells.................................................. 283.2.3IL-6 receptor cell surface expression ................................................................. 293.3Delayed STAT3 activation in cells lacking SIRPα............................................. 293.3.1SIRPαenhances activation of SOCS3 gene expression ................................... 303.3.2SIRPαenhances IL-6-dependent c-fos induction .............................................. 303.3.3Absence of SIRPαenhances tyrosine phosphorylation of SHP2....................... 313.3.4The SHP2 binding site within gp130 is crucial for enhanced SHP2 phosphorylation in SIRPαdeficient cells............................................................ 323.3.5SIRPαinfluences IL-6 mediated ERK activation................................................ 333.4 ........................................................................cAMP modulates IL-6 signalling. 343.4.1Pertussis toxin (PTX) downregulates IL-6 dependent ERK activity ................... 343.4.2Forskolin counteracts IL-6 induced ERK activation............................................ 353.5Prostaglandin E1(PGE1) counteracts IL-6-induced ERK activation ................ 363.5.1Three out of four E-series prostaglandin receptors (EP) are expressed in primary dermal fibroblasts............................................................................................... 383.5.2PGE1as well as the EP2 receptor agonist R - butaprost stimulate cAMP production .......................................................................................................... 39 3.5.3R butaprost, a specific prostaglandin EP2 receptor agonist, mimics PGE1effects on IL-6-induced ERK activation .............................................................. 393.5.4PKA but not Epac mediates cAMP effects on IL-6-induced ERK activation ...... 403.5.5The PKA inhibitor H89 restores the PGE1-mediated inhibitory effect on ERK phosphorylation..................................................................................................41 3.5.6PKA phosphorylates c-Raf-1 kinase in response to PGE1................................. 423.5.7c-Src is not directly involved in PGE1mediated inhibition of ERK 1/2 phosphorylation. 3................................................................................................. 4 3.5.8cAMP inhibits IL-6-induced gene expression of chemokine MCP-1 .................. 444.DISCUSSION .....................................................................................................464.1Regulation of signalling ...................................................................................... 464.1.1SIRPα- SHP2 interaction and its possible consequences in IL-6 signalling ..... 464.1.2 46 ..............................................Receptor surface expression and gene induction4.1.3Hyper-activation of SHP2 as a consequence of missing substrate?.................. 474.1.4 ....... 48Transient ERK induction as a possible effect of uncontrolled SHP2 action4.2 49 ...........................................................Cross-talk between signalling pathways
III
Index
4.2.14.2.2PGE1through EP2-receptor acts on IL-6-induced ERK activation..................... 514.2.3Protein kinase A mediates cAMP action ............................................................ 514.2.4Raf-1 kinase as a target of PKA......................................................................... 524.2.5Are c-Src and PKA acting antagonistically in regard to ERK regulation? .......... 524.2.6Anti-inflammatory properties of Prostaglandin E1............................................... 535.OUTLOOK .........................................................................................................545.1Looking for new proteins in familiar pathways................................................. 545.2Signalling networks- illustration of cross-talks ................................................ 546.US...YRAMM................................................................................................56......7..................57........FERE..SECNER........................................................................CURRICULUM VITAE ..............................................................................................69ACKNOWLEDGEMENTS .........................................................................................70
ctivatioedERKa-6emidtaibstI-LPAMhiinc0...5...................................................n
Abbreviations
ABBREVIATIONSAkt AKR thymoma oncogene homologue AMPadenosine monophosphate AP phase acuteAPP phase protein acute APS ammonium peroxodisulfate ATP adenosine triphosphate BSA bovine serum albumin BSF stimulatory factor B-cell cAMP3'-5'-cyclic AMPCD of differentiation cluster CIS SH2 containing protein cytokine-inducible CMV Cytomegalie-Virus CNTF neurotrophic factor ciliary CLC cytokine cardiotrophin-like CT cardiotrophin C3GCrk SH3 guanine nucleotide exchange factorddH2Odouble distilled water DMEMDulbecco s Modified Eagle Medium ´ DMSOdimethylsulfoxid DNA deoxyribonucleic acid DOS of sevenless daughter DTT 1,4-Dithio-DL-threitol E. coli coli Escherichia ECL enhanced chemoluminescence EDTA ethylenediamine-tetraacetic acid EGF epidermal growth factor ELISAenzyme linked immunosorbent assay EPE-series prostaglandin receptorEpacexchange protein activated by cAMPEpo erythropoietin Erk extracellular regulated kinase ESS SH2 subdomain extended EtOHethanolEx Exon FACS activated cell sorting fluorescence FAK focal adhesion kinase FCS fetal calf serum FERMFour-point-one ezrin radixin moesin Gab Grb2-associated binder GDPguanosine diphosphateGTP guanosine triphosphate gp glycoprotein GPCRG-protein coupled receptor Grb growth factor receptor bound protein h hour HEPESyh)lyxtedyor2(H-N-haetulnsnsforeäupip-zareN-ni-2-´ HIV immunodeficiency virus human HRP horseradish peroxidase
IV
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