PMID- 11683915 OWN - NLM STAT- MEDLINE DCOM- 20020228 LR - 20191105 IS - 1356-9597 (Print) IS - 1356-9597 (Linking) VI - 6 IP - 10 DP - 2001 Oct TI - Regulation of Ras and Rho small G proteins by SHP-2. PG - 869-76 AB - BACKGROUND: Hepatocyte growth factor/scatter factor (HGF/SF) induces cell scattering through the tyrosine kinase-type HGF/SF receptor, c-Met. We have previously shown that SHP-2, a protein tyrosine phosphatase, positively regulates the HGF/SF-induced cell scattering through modulating the activity of Rho to form stress fibres and focal adhesions. To further investigate the role of SHP-2 in HGF/SF-induced cell scattering, we have now examined the effect of a dominant active mutant of SHP-2 (SHP-2-DA). RESULTS: Expression of SHP-2-DA markedly increased the formation of lamellipodia with ruffles, while it decreased the accumulation of E-cadherin and beta-catenin at cell-cell adhesion sites in MDCK cells. In addition, expression of SHP-2-DA markedly enhanced cell scattering of MDCK cells in response to HGF/SF. Expression of SHP-2-DA induced the activation of MAP kinase without HGF/SF stimulation, whereas an inhibitor of MEK partly reversed the SHP-2-DA-induced morphological phenotypes. Furthermore, expression of either a dominant-active mutant of Rho or Vav2 also reversed the SHP-2-DA-induced morphological phenotypes. CONCLUSION: These results indicate that SHP-2 plays a crucial role in the HGF/SF-induced cell scattering through the regulation of two distinct small G proteins, Ras and Rho. FAU - Kodama, A AU - Kodama A AD - Department of Molecular Biology and Biochemistry, Osaka University Graduate School of Medicine/Faculty of Medicine, Suita 565-0871, Japan. FAU - Matozaki, T AU - Matozaki T FAU - Shinohara, M AU - Shinohara M FAU - Fukuhara, A AU - Fukuhara A FAU - Tachibana, K AU - Tachibana K FAU - Ichihashi, M AU - Ichihashi M FAU - Nakanishi, H AU - Nakanishi H FAU - Takai, Y AU - Takai Y LA - eng PT - Journal Article PL - England TA - Genes Cells JT - Genes to cells : devoted to molecular & cellular mechanisms JID - 9607379 RN - 0 (Cadherins) RN - 0 (Cytoskeletal Proteins) RN - 0 (Enzyme Inhibitors) RN - 0 (Flavonoids) RN - 0 (Intracellular Signaling Peptides and Proteins) RN - 0 (Trans-Activators) RN - 0 (beta Catenin) RN - 67256-21-7 (Hepatocyte Growth Factor) RN - EC 3.1.3.48 (Protein Tyrosine Phosphatase, Non-Receptor Type 11) RN - EC 3.1.3.48 (Protein Tyrosine Phosphatase, Non-Receptor Type 6) RN - EC 3.1.3.48 (Protein Tyrosine Phosphatases) RN - EC 3.6.5.2 (ras Proteins) RN - EC 3.6.5.2 (rho GTP-Binding Proteins) RN - SJE1IO5E3I (2-(2-amino-3-methoxyphenyl)-4H-1-benzopyran-4-one) SB - IM MH - Animals MH - Cadherins/metabolism MH - Cell Adhesion/drug effects/genetics MH - Cell Line/drug effects MH - Cell Size/drug effects MH - Cytoskeletal Proteins/metabolism MH - Enzyme Inhibitors/pharmacology MH - Flavonoids/pharmacology MH - Genes, Dominant MH - Hepatocyte Growth Factor/metabolism/pharmacology MH - Intracellular Signaling Peptides and Proteins MH - MAP Kinase Signaling System MH - Mutation MH - Protein Tyrosine Phosphatase, Non-Receptor Type 11 MH - Protein Tyrosine Phosphatase, Non-Receptor Type 6 MH - Protein Tyrosine Phosphatases/drug effects/genetics/*metabolism MH - *Trans-Activators MH - beta Catenin MH - ras Proteins/drug effects/*metabolism MH - rho GTP-Binding Proteins/drug effects/genetics/*metabolism EDAT- 2001/10/31 10:00 MHDA- 2002/03/01 10:01 CRDT- 2001/10/31 10:00 PHST- 2001/10/31 10:00 [pubmed] PHST- 2002/03/01 10:01 [medline] PHST- 2001/10/31 10:00 [entrez] AID - 467 [pii] AID - 10.1046/j.1365-2443.2001.00467.x [doi] PST - ppublish SO - Genes Cells. 2001 Oct;6(10):869-76. doi: 10.1046/j.1365-2443.2001.00467.x.