title: Cranial placodes: models for exploring the multi-facets of cell adhesion in epithelial rearrangement, collective migration and neuronal movements.
abstract: Key to morphogenesis is the orchestration of cell movements in the embryo, which requires fine-tuned adhesive interactions between cells and their close environment. The neural crest paradigm has provided important insights into how adhesion dynamics control epithelium-to-mesenchyme transition and mesenchymal cell migration. Much less is known about cranial placodes, patches of ectodermal cells that generate essential parts of vertebrate sensory organs and ganglia. In this review, we summarise the known functions of adhesion molecules in cranial placode morphogenesis, and discuss potential novel implications of adhesive interactions in this crucial developmental process. The great repertoire of placodal cell behaviours offers new avenues for exploring the multiple roles of adhesion complexes in epithelial remodelling, collective migration and neuronal movements.
authors.affiliation: Sorbonne Universités, UPMC Univ Paris 06, IBPS-UMR7622, F-75005 Paris, France; CNRS, UMR7622, Institut de Biologie Paris-Seine (IBPS) - Laboratoire de Biologie du Développement, F-75005 Paris, France; INSERM, U1156, F-75005 Paris, France. Electronic address: marie.breau@upmc.fr.
authors.forename: Marie Anne
authors.initials: MA
authors.lastname: Breau
authors.affiliation: Sorbonne Universités, UPMC Univ Paris 06, IBPS-UMR7622, F-75005 Paris, France; CNRS, UMR7622, Institut de Biologie Paris-Seine (IBPS) - Laboratoire de Biologie du Développement, F-75005 Paris, France; INSERM, U1156, F-75005 Paris, France.
authors.forename: Sylvie
authors.initials: S
authors.lastname: Schneider-Maunoury
mesh_terms: D000818:Animals; D002448:Cell Adhesion / Q000502:physiology*; D002465:Cell Movement / Q000502:physiology*; D004475:Ectoderm / Q000196:embryology*; D047108:Embryonic Development / Q000502:physiology*; D004848:Epithelium / Q000196:embryology*; D005109:Extracellular Matrix / Q000502:physiology; D006801:Humans; D008954:Models, Biological; D009024:Morphogenesis / Q000502:physiology*; D012886:Skull / Q000166:cytology / Q000196:embryology*
keywords: Adhesion; Collective migration; Epithelial morphogenesis; Morphogenesis; Neuronal migration; Placode; Sprouting