PMID- 17975841 OWN - NLM STAT- MEDLINE DCOM- 20080423 LR - 20191210 IS - 1097-4547 (Electronic) IS - 0360-4012 (Linking) VI - 86 IP - 5 DP - 2008 Apr TI - beta-Catenin and actin reorganization in HGF/SF response of ST14A cells. PG - 1044-52 AB - Hepatocyte growth factor/scatter factor (HGF/SF) is a pleiotropic factor that activates proliferation, differentiation, and migration of various cell types. Its action is mediated by c-Met, a receptor endowed with tyrosine kinase activity that activates complex signaling cascades and mediates diverse cell responses. Although HGF action was first demonstrated in epithelial cells, expression of HGF and c-Met receptor has also been described in developing and adult mammalian brain. In the developing central nervous system, areas of HGF and c-Met expression are coincident with the migratory pathway of precursor cells. In the present article we report that the interaction between c-Met and HGF/SF in striatal progenitor ST14A cells triggers a signaling cascade that induces modification of cell morphology, with decreased cell-cell interactions and increased cell motility; in particular, we analyzed the reorganization of the actin cytoskeleton and the delocalization of beta-catenin and N-cadherin. The testing of other neurotrophic factors (NGF, BDNF, NT3, and CNTF) showed that the observed modifications were peculiar to HGF. We show that phosphoinositide 3-kinase inhibitor treatment, which blocks cell scattering induced by HGF/SF, does not abolish actin and beta-catenin redistribution. The effects of HGF/SF on primary spinal cord cell cultures were also investigated, and HGF/SF was found to have a possible motogenic effect on these cells. The data reported suggest that HGF could play a role in the early steps of neurogenesis as a motogenic factor. FAU - Soldati, C AU - Soldati C AD - Dipartimento di Biologia Cellulare e dello Sviluppo, Universita di Roma "La Sapienza," Roma, Italy. FAU - Biagioni, S AU - Biagioni S FAU - Poiana, G AU - Poiana G FAU - Augusti-Tocco, G AU - Augusti-Tocco G LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - United States TA - J Neurosci Res JT - Journal of neuroscience research JID - 7600111 RN - 0 (Actins) RN - 0 (Cadherins) RN - 0 (Enzyme Inhibitors) RN - 0 (Phosphoinositide-3 Kinase Inhibitors) RN - 0 (beta Catenin) RN - 67256-21-7 (Hepatocyte Growth Factor) RN - EC 2.7.10.1 (Proto-Oncogene Proteins c-met) SB - IM MH - Actins/*metabolism MH - Animals MH - Cadherins/metabolism MH - Cell Adhesion/drug effects/physiology MH - Cell Differentiation/drug effects/physiology MH - Cell Line MH - Cell Movement/drug effects/physiology MH - Cells, Cultured MH - Central Nervous System/cytology/*embryology/metabolism MH - Cytoskeleton/metabolism MH - Enzyme Inhibitors/pharmacology MH - Hepatocyte Growth Factor/*metabolism/pharmacology MH - Mice MH - Neurons/drug effects/*metabolism MH - Phosphatidylinositol 3-Kinases/metabolism MH - Phosphoinositide-3 Kinase Inhibitors MH - Proto-Oncogene Proteins c-met/drug effects/metabolism MH - Rats MH - Stem Cells/drug effects/*metabolism MH - beta Catenin/*metabolism EDAT- 2007/11/03 09:00 MHDA- 2008/04/24 09:00 CRDT- 2007/11/03 09:00 PHST- 2007/11/03 09:00 [pubmed] PHST- 2008/04/24 09:00 [medline] PHST- 2007/11/03 09:00 [entrez] AID - 10.1002/jnr.21557 [doi] PST - ppublish SO - J Neurosci Res. 2008 Apr;86(5):1044-52. doi: 10.1002/jnr.21557.