Skip to main content
Biochemical Journal logoLink to Biochemical Journal
. 1999 Mar 15;338(Pt 3):677–680.

Activation of integrin-beta3-associated syk in platelets.

S Sarkar 1, M M Rooney 1, S T Lord 1
PMCID: PMC1220102  PMID: 10051438

Abstract

Published data suggest that the tyrosine kinase syk participates in platelet signalling through the integrin alphaIIbbeta3. Our data show an association of syk and integrin beta3 in immunoprecipitates from unstimulated and stimulated platelets. We detected syk in anti-beta3 precipitates and, conversely, beta3 in anti-syk precipitates. In vitro kinase assays with anti-beta3 precipitates demonstrated that syk activity was enhanced in ADP-stimulated platelets.

Full Text

The Full Text of this article is available as a PDF (120.6 KB).

Selected References

These references are in PubMed. This may not be the complete list of references from this article.

  1. Banfić H., Tang X., Batty I. H., Downes C. P., Chen C., Rittenhouse S. E. A novel integrin-activated pathway forms PKB/Akt-stimulatory phosphatidylinositol 3,4-bisphosphate via phosphatidylinositol 3-phosphate in platelets. J Biol Chem. 1998 Jan 2;273(1):13–16. doi: 10.1074/jbc.273.1.13. [DOI] [PubMed] [Google Scholar]
  2. Burk C. D., Newman P. J., Lyman S., Gill J., Coller B. S., Poncz M. A deletion in the gene for glycoprotein IIb associated with Glanzmann's thrombasthenia. J Clin Invest. 1991 Jan;87(1):270–276. doi: 10.1172/JCI114982. [DOI] [PMC free article] [PubMed] [Google Scholar]
  3. Cichowski K., Brugge J. S., Brass L. F. Thrombin receptor activation and integrin engagement stimulate tyrosine phosphorylation of the proto-oncogene product, p95vav, in platelets. J Biol Chem. 1996 Mar 29;271(13):7544–7550. doi: 10.1074/jbc.271.13.7544. [DOI] [PubMed] [Google Scholar]
  4. Clark E. A., Brugge J. S. Redistribution of activated pp60c-src to integrin-dependent cytoskeletal complexes in thrombin-stimulated platelets. Mol Cell Biol. 1993 Mar;13(3):1863–1871. doi: 10.1128/mcb.13.3.1863. [DOI] [PMC free article] [PubMed] [Google Scholar]
  5. Clark E. A., Shattil S. J., Brugge J. S. Regulation of protein tyrosine kinases in platelets. Trends Biochem Sci. 1994 Nov;19(11):464–469. doi: 10.1016/0968-0004(94)90131-7. [DOI] [PubMed] [Google Scholar]
  6. Clark E. A., Shattil S. J., Ginsberg M. H., Bolen J., Brugge J. S. Regulation of the protein tyrosine kinase pp72syk by platelet agonists and the integrin alpha IIb beta 3. J Biol Chem. 1994 Nov 18;269(46):28859–28864. [PubMed] [Google Scholar]
  7. Gao J., Zoller K. E., Ginsberg M. H., Brugge J. S., Shattil S. J. Regulation of the pp72syk protein tyrosine kinase by platelet integrin alpha IIb beta 3. EMBO J. 1997 Nov 3;16(21):6414–6425. doi: 10.1093/emboj/16.21.6414. [DOI] [PMC free article] [PubMed] [Google Scholar]
  8. Gassmann M., Guttinger M., Amrein K. E., Burn P. Protein tyrosine kinase p59fyn is associated with the T cell receptor-CD3 complex in functional human lymphocytes. Eur J Immunol. 1992 Jan;22(1):283–286. doi: 10.1002/eji.1830220142. [DOI] [PubMed] [Google Scholar]
  9. Gotoh A., Takahira H., Geahlen R. L., Broxmeyer H. E. Cross-linking of integrins induces tyrosine phosphorylation of the proto-oncogene product Vav and the protein tyrosine kinase Syk in human factor-dependent myeloid cells. Cell Growth Differ. 1997 Jun;8(6):721–729. [PubMed] [Google Scholar]
  10. Hutchcroft J. E., Harrison M. L., Geahlen R. L. Association of the 72-kDa protein-tyrosine kinase PTK72 with the B cell antigen receptor. J Biol Chem. 1992 Apr 25;267(12):8613–8619. [PubMed] [Google Scholar]
  11. Jallu V., Diaz-Ricart M., Ordinas A., Pico M., Vezon G., Nurden A. T. Two human antibodies reacting with different epitopes on integrin beta 3 of platelets and endothelial cells. Eur J Biochem. 1994 Jun 15;222(3):743–751. doi: 10.1111/j.1432-1033.1994.tb18920.x. [DOI] [PubMed] [Google Scholar]
  12. Keely P. J., Parise L. V. The alpha2beta1 integrin is a necessary co-receptor for collagen-induced activation of Syk and the subsequent phosphorylation of phospholipase Cgamma2 in platelets. J Biol Chem. 1996 Oct 25;271(43):26668–26676. [PubMed] [Google Scholar]
  13. Laemmli U. K. Cleavage of structural proteins during the assembly of the head of bacteriophage T4. Nature. 1970 Aug 15;227(5259):680–685. doi: 10.1038/227680a0. [DOI] [PubMed] [Google Scholar]
  14. Law D. A., Nannizzi-Alaimo L., Phillips D. R. Outside-in integrin signal transduction. Alpha IIb beta 3-(GP IIb IIIa) tyrosine phosphorylation induced by platelet aggregation. J Biol Chem. 1996 May 3;271(18):10811–10815. doi: 10.1074/jbc.271.18.10811. [DOI] [PubMed] [Google Scholar]
  15. Newman P. J., Allen R. W., Kahn R. A., Kunicki T. J. Quantitation of membrane glycoprotein IIIa on intact human platelets using the monoclonal antibody, AP-3. Blood. 1985 Jan;65(1):227–232. [PubMed] [Google Scholar]
  16. Oliver J. M., Burg D. L., Wilson B. S., McLaughlin J. L., Geahlen R. L. Inhibition of mast cell Fc epsilon R1-mediated signaling and effector function by the Syk-selective inhibitor, piceatannol. J Biol Chem. 1994 Nov 25;269(47):29697–29703. [PubMed] [Google Scholar]
  17. Poole A., Gibbins J. M., Turner M., van Vugt M. J., van de Winkel J. G., Saito T., Tybulewicz V. L., Watson S. P. The Fc receptor gamma-chain and the tyrosine kinase Syk are essential for activation of mouse platelets by collagen. EMBO J. 1997 May 1;16(9):2333–2341. doi: 10.1093/emboj/16.9.2333. [DOI] [PMC free article] [PubMed] [Google Scholar]
  18. Rooney M. M., Parise L. V., Lord S. T. Dissecting clot retraction and platelet aggregation. Clot retraction does not require an intact fibrinogen gamma chain C terminus. J Biol Chem. 1996 Apr 12;271(15):8553–8555. doi: 10.1074/jbc.271.15.8553. [DOI] [PubMed] [Google Scholar]
  19. Thomas S. M., Brugge J. S. Cellular functions regulated by Src family kinases. Annu Rev Cell Dev Biol. 1997;13:513–609. doi: 10.1146/annurev.cellbio.13.1.513. [DOI] [PubMed] [Google Scholar]
  20. Yamada T., Taniguchi T., Yang C., Yasue S., Saito H., Yamamura H. Association with B-cell-antigen receptor with protein-tyrosine kinase p72syk and activation by engagement of membrane IgM. Eur J Biochem. 1993 Apr 1;213(1):455–459. doi: 10.1111/j.1432-1033.1993.tb17781.x. [DOI] [PubMed] [Google Scholar]
  21. Yan S. R., Huang M., Berton G. Signaling by adhesion in human neutrophils: activation of the p72syk tyrosine kinase and formation of protein complexes containing p72syk and Src family kinases in neutrophils spreading over fibrinogen. J Immunol. 1997 Feb 15;158(4):1902–1910. [PubMed] [Google Scholar]

Articles from Biochemical Journal are provided here courtesy of The Biochemical Society

RESOURCES