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. 1996 Mar 1;314(Pt 2):401–404. doi: 10.1042/bj3140401

Activation of a protein tyrosine phosphatase and inactivation of Raf-1 by somatostatin.

D B Reardon 1, S L Wood 1, D L Brautigan 1, G I Bell 1, P Dent 1, T W Sturgill 1
PMCID: PMC1217062  PMID: 8670047

Abstract

Human somatostatin receptor 3 ('hsstr3') was transiently expressed in NIH 3T3 cells stably transformed with Ha-Ras (G12V). Somatostatin activated a protein tyrosine phosphatase and inactivated the constitutively active, membrane-associated form of the Raf-1 serine kinase present in these cells in vivo and in vitro.

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Selected References

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  1. Alblas J., van Corven E. J., Hordijk P. L., Milligan G., Moolenaar W. H. Gi-mediated activation of the p21ras-mitogen-activated protein kinase pathway by alpha 2-adrenergic receptors expressed in fibroblasts. J Biol Chem. 1993 Oct 25;268(30):22235–22238. [PubMed] [Google Scholar]
  2. Bito H., Mori M., Sakanaka C., Takano T., Honda Z., Gotoh Y., Nishida E., Shimizu T. Functional coupling of SSTR4, a major hippocampal somatostatin receptor, to adenylate cyclase inhibition, arachidonate release and activation of the mitogen-activated protein kinase cascade. J Biol Chem. 1994 Apr 29;269(17):12722–12730. [PubMed] [Google Scholar]
  3. Brautigan D. L., Pinault F. M. Serine phosphorylation of protein tyrosine phosphatase (PTP1B) in HeLa cells in response to analogues of cAMP or diacylglycerol plus okadaic acid. Mol Cell Biochem. 1993 Nov;127-128:121–129. doi: 10.1007/BF01076763. [DOI] [PubMed] [Google Scholar]
  4. Colas B., Cambillau C., Buscail L., Zeggari M., Esteve J. P., Lautre V., Thomas F., Vaysse N., Susini C. Stimulation of a membrane tyrosine phosphatase activity by somatostatin analogues in rat pancreatic acinar cells. Eur J Biochem. 1992 Aug 1;207(3):1017–1024. doi: 10.1111/j.1432-1033.1992.tb17138.x. [DOI] [PubMed] [Google Scholar]
  5. Crespo P., Xu N., Simonds W. F., Gutkind J. S. Ras-dependent activation of MAP kinase pathway mediated by G-protein beta gamma subunits. Nature. 1994 Jun 2;369(6479):418–420. doi: 10.1038/369418a0. [DOI] [PubMed] [Google Scholar]
  6. David M., Chen H. E., Goelz S., Larner A. C., Neel B. G. Differential regulation of the alpha/beta interferon-stimulated Jak/Stat pathway by the SH2 domain-containing tyrosine phosphatase SHPTP1. Mol Cell Biol. 1995 Dec;15(12):7050–7058. doi: 10.1128/mcb.15.12.7050. [DOI] [PMC free article] [PubMed] [Google Scholar]
  7. Dent P., Jelinek T., Morrison D. K., Weber M. J., Sturgill T. W. Reversal of Raf-1 activation by purified and membrane-associated protein phosphatases. Science. 1995 Jun 30;268(5219):1902–1906. doi: 10.1126/science.7604263. [DOI] [PubMed] [Google Scholar]
  8. Dent P., Reardon D. B., Morrison D. K., Sturgill T. W. Regulation of Raf-1 and Raf-1 mutants by Ras-dependent and Ras-independent mechanisms in vitro. Mol Cell Biol. 1995 Aug;15(8):4125–4135. doi: 10.1128/mcb.15.8.4125. [DOI] [PMC free article] [PubMed] [Google Scholar]
  9. Dent P., Reardon D. B., Wood S. L., Lindorfer M. A., Graber S. G., Garrison J. C., Brautigan D. L., Sturgill T. W. Inactivation of raf-1 by a protein-tyrosine phosphatase stimulated by GTP and reconstituted by Galphai/o subunits. J Biol Chem. 1996 Feb 9;271(6):3119–3123. doi: 10.1074/jbc.271.6.3119. [DOI] [PubMed] [Google Scholar]
  10. Farnsworth C. L., Marshall M. S., Gibbs J. B., Stacey D. W., Feig L. A. Preferential inhibition of the oncogenic form of RasH by mutations in the GAP binding/"effector" domain. Cell. 1991 Feb 8;64(3):625–633. doi: 10.1016/0092-8674(91)90246-u. [DOI] [PubMed] [Google Scholar]
  11. Jelinek T., Dent P., Sturgill T. W., Weber M. J. Ras-induced activation of Raf-1 is dependent on tyrosine phosphorylation. Mol Cell Biol. 1996 Mar;16(3):1027–1034. doi: 10.1128/mcb.16.3.1027. [DOI] [PMC free article] [PubMed] [Google Scholar]
  12. Liebow C., Reilly C., Serrano M., Schally A. V. Somatostatin analogues inhibit growth of pancreatic cancer by stimulating tyrosine phosphatase. Proc Natl Acad Sci U S A. 1989 Mar;86(6):2003–2007. doi: 10.1073/pnas.86.6.2003. [DOI] [PMC free article] [PubMed] [Google Scholar]
  13. Marshall C. J. MAP kinase kinase kinase, MAP kinase kinase and MAP kinase. Curr Opin Genet Dev. 1994 Feb;4(1):82–89. doi: 10.1016/0959-437x(94)90095-7. [DOI] [PubMed] [Google Scholar]
  14. Neer E. J. Heterotrimeric G proteins: organizers of transmembrane signals. Cell. 1995 Jan 27;80(2):249–257. doi: 10.1016/0092-8674(95)90407-7. [DOI] [PubMed] [Google Scholar]
  15. Pan M. G., Florio T., Stork P. J. G protein activation of a hormone-stimulated phosphatase in human tumor cells. Science. 1992 May 22;256(5060):1215–1217. doi: 10.1126/science.256.5060.1215. [DOI] [PubMed] [Google Scholar]
  16. Rens-Domiano S., Law S. F., Yamada Y., Seino S., Bell G. I., Reisine T. Pharmacological properties of two cloned somatostatin receptors. Mol Pharmacol. 1992 Jul;42(1):28–34. [PubMed] [Google Scholar]
  17. Reubi J. C., Laissue J. A. Multiple actions of somatostatin in neoplastic disease. Trends Pharmacol Sci. 1995 Mar;16(3):110–115. doi: 10.1016/s0165-6147(00)88992-0. [DOI] [PubMed] [Google Scholar]
  18. Traverse S., Cohen P., Paterson H., Marshall C., Rapp U., Grand R. J. Specific association of activated MAP kinase kinase kinase (Raf) with the plasma membranes of ras-transformed retinal cells. Oncogene. 1993 Nov;8(11):3175–3181. [PubMed] [Google Scholar]
  19. Yamauchi K., Milarski K. L., Saltiel A. R., Pessin J. E. Protein-tyrosine-phosphatase SHPTP2 is a required positive effector for insulin downstream signaling. Proc Natl Acad Sci U S A. 1995 Jan 31;92(3):664–668. doi: 10.1073/pnas.92.3.664. [DOI] [PMC free article] [PubMed] [Google Scholar]
  20. Yao B., Zhang Y., Delikat S., Mathias S., Basu S., Kolesnick R. Phosphorylation of Raf by ceramide-activated protein kinase. Nature. 1995 Nov 16;378(6554):307–310. doi: 10.1038/378307a0. [DOI] [PubMed] [Google Scholar]
  21. Yasuda K., Rens-Domiano S., Breder C. D., Law S. F., Saper C. B., Reisine T., Bell G. I. Cloning of a novel somatostatin receptor, SSTR3, coupled to adenylylcyclase. J Biol Chem. 1992 Oct 5;267(28):20422–20428. [PubMed] [Google Scholar]
  22. Zeggari M., Esteve J. P., Rauly I., Cambillau C., Mazarguil H., Dufresne M., Pradayrol L., Chayvialle J. A., Vaysse N., Susini C. Co-purification of a protein tyrosine phosphatase with activated somatostatin receptors from rat pancreatic acinar membranes. Biochem J. 1994 Oct 15;303(Pt 2):441–448. doi: 10.1042/bj3030441. [DOI] [PMC free article] [PubMed] [Google Scholar]

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