title: Origin and molecular specification of globus pallidus neurons.
abstract: The mechanisms controlling the assembly of brain nuclei are poorly understood. In the forebrain, it is typically assumed that the formation of nuclei follows a similar sequence of events that in the cortex. In this structure, projection neurons are generated sequentially from common progenitor cells and migrate radially to reach their final destination, whereas interneurons are generated remotely and arrive to the cortex through tangential migration. Using the globus pallidus as a model to study the formation of forebrain nuclei, we found that the development of this basal ganglia structure involves the generation of several distinct classes of projection neurons from relatively distant progenitor pools, which then assemble together through tangential migration. Our results thus suggest that tangential migration in the forebrain is not limited to interneurons, as previously thought, but also involves projection neurons and reveal that the assembly of forebrain nuclei is more complex than previously anticipated.
authors.affiliation: Instituto de Neurociencias, Consejo Superior de Investigaciones Científicas y Universidad Miguel Hernández, Sant Joan d'Alacant, Spain.
authors.forename: Sandrina
authors.initials: S
authors.lastname: Nóbrega-Pereira
authors.forename: Diego
authors.initials: D
authors.lastname: Gelman
authors.forename: Giorgia
authors.initials: G
authors.lastname: Bartolini
authors.forename: Ramón
authors.initials: R
authors.lastname: Pla
authors.forename: Alessandra
authors.initials: A
authors.lastname: Pierani
authors.forename: Oscar
authors.initials: O
authors.lastname: Marín
mesh_terms: D000109:Acetylcholine / Q000378:metabolism; D000818:Animals; D051792:Basic Helix-Loop-Helix Proteins / Q000235:genetics / Q000378:metabolism; D015415:Biomarkers / Q000032:analysis / Q000378:metabolism; D002454:Cell Differentiation / Q000502:physiology; D002465:Cell Movement / Q000502:physiology; D002795:Choline O-Acetyltransferase / Q000378:metabolism; D004268:DNA-Binding Proteins / Q000235:genetics / Q000378:metabolism; D018507:Gene Expression Regulation, Developmental / Q000502:physiology; D005917:Globus Pallidus / Q000166:cytology / Q000196:embryology* / Q000378:metabolism*; D051379:Mice; D018345:Mice, Knockout; D008822:Mice, Transgenic; D009419:Nerve Tissue Proteins / Q000235:genetics / Q000378:metabolism; D009434:Neural Pathways / Q000166:cytology / Q000196:embryology / Q000378:metabolism; D055495:Neurogenesis / Q000502:physiology; D009474:Neurons / Q000166:cytology / Q000378:metabolism*; D009687:Nuclear Proteins / Q000235:genetics / Q000378:metabolism; D010320:Parvalbumins / Q000378:metabolism; D016548:Prosencephalon / Q000166:cytology / Q000196:embryology* / Q000378:metabolism*; D013234:Stem Cells / Q000166:cytology / Q000378:metabolism*; D000074482:Thyroid Nuclear Factor 1; D014157:Transcription Factors / Q000235:genetics / Q000378:metabolism; D005680:gamma-Aminobutyric Acid / Q000378:metabolism
chemical_list: D000109:Acetylcholine; D051792:Basic Helix-Loop-Helix Proteins; D015415:Biomarkers; D002795:Choline O-Acetyltransferase; D004268:DNA-Binding Proteins; D009419:Nerve Tissue Proteins; D009687:Nuclear Proteins; D010320:Parvalbumins; D000074482:Thyroid Nuclear Factor 1; D014157:Transcription Factors; D005680:gamma-Aminobutyric Acid; C490641:Etv1 protein, mouse; C492380:NeuN protein, mouse; C512770:Npas1 protein, mouse