title: The tyrosine phosphatase Shp2 (PTPN11) directs Neuregulin-1/ErbB signaling throughout Schwann cell development.
abstract: The nonreceptor tyrosine phosphatase Shp2 (PTPN11) has been implicated in tyrosine kinase, cytokine, and integrin receptor signaling. We show here that conditional mutation of Shp2 in neural crest cells and in myelinating Schwann cells resulted in deficits in glial development that are remarkably similar to those observed in mice mutant for Neuregulin-1 (Nrg1) or the Nrg1 receptors, ErbB2 and ErbB3. In cultured Shp2 mutant Schwann cells, Nrg1-evoked cellular responses like proliferation and migration were virtually abolished, and Nrg1-dependent intracellular signaling was altered. Pharmacological inhibition of Src family kinases mimicked all cellular and biochemical effects of the Shp2 mutation, implicating Src as a primary Shp2 target during Nrg1 signaling. Together, our genetic and biochemical analyses demonstrate that Shp2 is an essential component in the transduction of Nrg1/ErbB signals.
authors.affiliation: Neuroscience Department, Department of Cancer Research, Department of Cardiovascular Research, Max-Delbrück-Centrum for Molecular Medicine, Robert-Rössle-Strasse 10, Berlin, Germany.
authors.forename: Katja S
authors.initials: KS
authors.lastname: Grossmann
authors.forename: Hagen
authors.initials: H
authors.lastname: Wende
authors.forename: Florian E
authors.initials: FE
authors.lastname: Paul
authors.forename: Cyril
authors.initials: C
authors.lastname: Cheret
authors.forename: Alistair N
authors.initials: AN
authors.lastname: Garratt
authors.forename: Sandra
authors.initials: S
authors.lastname: Zurborg
authors.forename: Konstantin
authors.initials: K
authors.lastname: Feinberg
authors.forename: Daniel
authors.initials: D
authors.lastname: Besser
authors.forename: Herbert
authors.initials: H
authors.lastname: Schulz
authors.forename: Elior
authors.initials: E
authors.lastname: Peles
authors.forename: Matthias
authors.initials: M
authors.lastname: Selbach
authors.forename: Walter
authors.initials: W
authors.lastname: Birchmeier
authors.forename: Carmen
authors.initials: C
authors.lastname: Birchmeier
mesh_terms: D000818:Animals; D066246:ErbB Receptors / Q000378:metabolism*; D005455:Fluorescent Antibody Technique; D051379:Mice; D009432:Neural Crest / Q000378:metabolism; D020890:Neuregulin-1 / Q000378:metabolism*; D054592:Protein Tyrosine Phosphatase, Non-Receptor Type 11 / Q000235:genetics / Q000378:metabolism*; D012583:Schwann Cells / Q000201:enzymology / Q000378:metabolism*; D015398:Signal Transduction
chemical_list: D020890:Neuregulin-1; D066246:ErbB Receptors; D054592:Protein Tyrosine Phosphatase, Non-Receptor Type 11