PMID- 10930454 OWN - NLM STAT- MEDLINE DCOM- 20001222 LR - 20211203 IS - 1059-1524 (Print) IS - 1059-1524 (Linking) VI - 11 IP - 8 DP - 2000 Aug TI - Involvement of an SHP-2-Rho small G protein pathway in hepatocyte growth factor/scatter factor-induced cell scattering. PG - 2565-75 AB - 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 Rho small G protein (Rho) is involved in the HGF/SF-induced scattering of Madin-Darby canine kidney (MDCK) cells by regulating at least the assembly and disassembly of stress fibers and focal adhesions, but it remains unknown how c-Met regulates Rho activity. We have found here a novel signaling pathway of c-Met consisting of SHP-2-Rho that regulates the assembly and disassembly of stress fibers and focal adhesions in MDCK cells. SHP-2 is a protein-tyrosine phosphatase that contains src homology-2 domains. Expression of a dominant negative mutant of SHP-2 (SHP-2-C/S) markedly increased the formation of stress fibers and focal adhesions in MDCK cells and inhibited their scattering. C3, a Clostridium botulinum ADP-ribosyltransferase, and Y-27632, a specific inhibitor for ROCK, reversed the stimulatory effect of SHP-2-C/S on stress fiber formation and the inhibitory effect on cell scattering. Vav2 is a GDP/GTP exchange protein for Rho. Expression of a dominant negative mutant of Vav2 blocked the stimulatory effect of SHP-2-C/S on stress fiber formation. Conversely, expression of mutants of Vav2 that increased stress fiber formation inhibited HGF/SF-induced cell scattering. These results indicate that SHP-2 physiologically modulates the activity of Rho to form stress fibers and focal adhesions and thereby regulates HGF/SF-induced cell scattering. In addition, Vav2 may be involved in the SHP-2-Rho pathway. FAU - Kodama, A AU - Kodama A AD - Department of Molecular Biology and Biochemistry, Osaka University Graduate School of Medicine/Faculty of Medicine, Suita, Japan. FAU - Matozaki, T AU - Matozaki T FAU - Fukuhara, A AU - Fukuhara A FAU - Kikyo, M AU - Kikyo M FAU - Ichihashi, M AU - Ichihashi M FAU - Takai, Y AU - Takai Y LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - United States TA - Mol Biol Cell JT - Molecular biology of the cell JID - 9201390 RN - 0 (Amides) RN - 0 (Cell Cycle Proteins) RN - 0 (Enzyme Inhibitors) RN - 0 (Intracellular Signaling Peptides and Proteins) RN - 0 (Proto-Oncogene Proteins) RN - 0 (Proto-Oncogene Proteins c-vav) RN - 0 (Pyridines) RN - 138381-45-0 (Y 27632) RN - 67256-21-7 (Hepatocyte Growth Factor) RN - EC 2.4.2.- (ADP Ribose Transferases) RN - EC 2.4.2.- (exoenzyme C3, Clostridium botulinum) RN - EC 2.7.11.1 (Protein Serine-Threonine Kinases) RN - EC 2.7.11.1 (rho-Associated Kinases) 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 3.4.24.69 (Botulinum Toxins) RN - EC 3.6.5.2 (rho GTP-Binding Proteins) SB - IM MH - ADP Ribose Transferases/pharmacology MH - Amides/pharmacology MH - Animals MH - *Botulinum Toxins MH - Cell Adhesion/drug effects MH - *Cell Cycle Proteins MH - Cell Line MH - Cytoskeleton/drug effects MH - Dogs MH - Enzyme Inhibitors/pharmacology MH - Hepatocyte Growth Factor/*physiology MH - Intracellular Signaling Peptides and Proteins MH - Microscopy, Confocal MH - Models, Biological MH - Mutation MH - Protein Serine-Threonine Kinases/drug effects/metabolism/physiology MH - Protein Tyrosine Phosphatase, Non-Receptor Type 11 MH - Protein Tyrosine Phosphatase, Non-Receptor Type 6 MH - Protein Tyrosine Phosphatases/genetics/*physiology MH - Proto-Oncogene Proteins/genetics/physiology MH - Proto-Oncogene Proteins c-vav MH - Pyridines/pharmacology MH - Signal Transduction/drug effects MH - Transfection MH - rho GTP-Binding Proteins/drug effects/metabolism/*physiology MH - rho-Associated Kinases PMC - PMC14940 EDAT- 2000/08/10 11:00 MHDA- 2001/02/28 10:01 CRDT- 2000/08/10 11:00 PHST- 2000/08/10 11:00 [pubmed] PHST- 2001/02/28 10:01 [medline] PHST- 2000/08/10 11:00 [entrez] AID - 1266 [pii] AID - 10.1091/mbc.11.8.2565 [doi] PST - ppublish SO - Mol Biol Cell. 2000 Aug;11(8):2565-75. doi: 10.1091/mbc.11.8.2565.