title: Extracellular modulation of the Hedgehog, Wnt and TGF-beta signalling pathways during embryonic development.
abstract: Localized embryonic expression of members of the Hedgehog, Wnt and TGF-beta families of secreted factors has been shown to organize pattern and provide positional information in many developing systems. Recently, several extracellular factors have been described that act either as facilitators or inhibitors of the activities of those secreted proteins. The variety of molecular strategies involved in the extracellular modulation of signalling activities in the embryo underscores the importance of maintaining a tight spatial and temporal control of the activities of organizing centers during development.
authors.affiliation: The Salk Institute for Biological Studies, Gene Expression Laboratory, 10010 North Torrey Pines Road, La Jolla, California 92037, USA.
authors.forename: J
authors.initials: J
authors.lastname: Capdevila
authors.forename: J C
authors.initials: JC
authors.lastname: lzpisúa Belmonte
mesh_terms: D000818:Animals; D004330:Drosophila / Q000196:embryology*; D029721:Drosophila Proteins; D004625:Embryo, Nonmammalian / Q000378:metabolism; D047108:Embryonic Development; D053823:Hedgehog Proteins; D019476:Insect Proteins / Q000378:metabolism*; D011518:Proto-Oncogene Proteins / Q000378:metabolism*; D015398:Signal Transduction; D016212:Transforming Growth Factor beta / Q000378:metabolism*; D051153:Wnt Proteins; D029961:Zebrafish Proteins
chemical_list: D029721:Drosophila Proteins; D053823:Hedgehog Proteins; D019476:Insect Proteins; D011518:Proto-Oncogene Proteins; D016212:Transforming Growth Factor beta; D051153:Wnt Proteins; D029961:Zebrafish Proteins; C077245:hh protein, Drosophila