Your browser doesn't support javascript.
loading
Inhibition of neuroepithelial patched-induced apoptosis by sonic hedgehog.
Thibert, Chantal; Teillet, Marie-Aimée; Lapointe, Françoise; Mazelin, Laetitia; Le Douarin, Nicole M; Mehlen, Patrick.
Afiliación
  • Thibert C; Apoptosis/Differentiation Laboratory, "La Ligue," Molecular and Cellular Genetic Center, CNRS Unite Mixte Recherche (UMR) 5534, University of Lyon, 69622 Villeurbanne, France.
Science ; 301(5634): 843-6, 2003 Aug 08.
Article en En | MEDLINE | ID: mdl-12907805
During early development in vertebrates, Sonic hedgehog (Shh) is produced by the notochord and the floor plate. A ventrodorsal gradient of Shh directs ventrodorsal patterning of the neural tube. However, Shh is also required for the survival of neuroepithelial cells. We show that Patched (Ptc) induces apoptotic cell death unless its ligand Shh is present to block the signal. Moreover, the blockade of Ptc-induced cell death partly rescues the chick spinal cord defect provoked by Shh deprivation. Thus, the proapoptotic activity of unbound Ptc and the positive effect of Shh-bound Ptc on cell differentiation probably cooperate to achieve the appropriate spinal cord development.
Asunto(s)
Buscar en Google
Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Transactivadores / Sistema Nervioso Central / Apoptosis / Proteínas de la Membrana Límite: Animals / Humans Idioma: En Revista: Science Año: 2003 Tipo del documento: Article País de afiliación: Francia Pais de publicación: Estados Unidos
Buscar en Google
Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Transactivadores / Sistema Nervioso Central / Apoptosis / Proteínas de la Membrana Límite: Animals / Humans Idioma: En Revista: Science Año: 2003 Tipo del documento: Article País de afiliación: Francia Pais de publicación: Estados Unidos