FOXP2 exhibits projection neuron class specific expression, but is not required for multiple aspects of cortical histogenesis

The expression patterns of the transcription factor FOXP2 in the developing mammalian forebrain have been described, and some studies have tested the role of this protein in the development and function of specific forebrain circuits by diverse methods and in multiple species. Clinically, mutations...

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Main Authors: Ryan J Kast, Alexandra L Lanjewar, Colton D Smith, Pat Levitt
Format: Article
Language:English
Published: eLife Sciences Publications Ltd 2019-05-01
Series:eLife
Subjects:
Online Access:https://elifesciences.org/articles/42012
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author Ryan J Kast
Alexandra L Lanjewar
Colton D Smith
Pat Levitt
author_facet Ryan J Kast
Alexandra L Lanjewar
Colton D Smith
Pat Levitt
author_sort Ryan J Kast
collection DOAJ
description The expression patterns of the transcription factor FOXP2 in the developing mammalian forebrain have been described, and some studies have tested the role of this protein in the development and function of specific forebrain circuits by diverse methods and in multiple species. Clinically, mutations in FOXP2 are associated with severe developmental speech disturbances, and molecular studies indicate that impairment of Foxp2 may lead to dysregulation of genes involved in forebrain histogenesis. Here, anatomical and molecular phenotypes of the cortical neuron populations that express FOXP2 were characterized in mice. Additionally, Foxp2 was removed from the developing mouse cortex at different prenatal ages using two Cre-recombinase driver lines. Detailed molecular and circuit analyses were undertaken to identify potential disruptions of development. Surprisingly, the results demonstrate that Foxp2 function is not required for many functions that it has been proposed to regulate, and therefore plays a more limited role in cortical development than previously thought.
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spelling doaj.art-ac19d9b8943048cb9fdf66d43934f1692022-12-22T04:32:40ZengeLife Sciences Publications LtdeLife2050-084X2019-05-01810.7554/eLife.42012FOXP2 exhibits projection neuron class specific expression, but is not required for multiple aspects of cortical histogenesisRyan J Kast0https://orcid.org/0000-0003-3580-8811Alexandra L Lanjewar1https://orcid.org/0000-0002-2037-0717Colton D Smith2Pat Levitt3https://orcid.org/0000-0002-9717-1695Department of Pediatrics and Program in Developmental Neuroscience and Neurogenetics, The Saban Research Institute, Children’s Hospital Los Angeles, Keck School of Medicine, University of Southern California, Los Angeles, United StatesDepartment of Pediatrics and Program in Developmental Neuroscience and Neurogenetics, The Saban Research Institute, Children’s Hospital Los Angeles, Keck School of Medicine, University of Southern California, Los Angeles, United StatesDepartment of Pediatrics and Program in Developmental Neuroscience and Neurogenetics, The Saban Research Institute, Children’s Hospital Los Angeles, Keck School of Medicine, University of Southern California, Los Angeles, United StatesDepartment of Pediatrics and Program in Developmental Neuroscience and Neurogenetics, The Saban Research Institute, Children’s Hospital Los Angeles, Keck School of Medicine, University of Southern California, Los Angeles, United StatesThe expression patterns of the transcription factor FOXP2 in the developing mammalian forebrain have been described, and some studies have tested the role of this protein in the development and function of specific forebrain circuits by diverse methods and in multiple species. Clinically, mutations in FOXP2 are associated with severe developmental speech disturbances, and molecular studies indicate that impairment of Foxp2 may lead to dysregulation of genes involved in forebrain histogenesis. Here, anatomical and molecular phenotypes of the cortical neuron populations that express FOXP2 were characterized in mice. Additionally, Foxp2 was removed from the developing mouse cortex at different prenatal ages using two Cre-recombinase driver lines. Detailed molecular and circuit analyses were undertaken to identify potential disruptions of development. Surprisingly, the results demonstrate that Foxp2 function is not required for many functions that it has been proposed to regulate, and therefore plays a more limited role in cortical development than previously thought.https://elifesciences.org/articles/42012cortexdevelopmentcell fateaxon guidanceneurogenesis
spellingShingle Ryan J Kast
Alexandra L Lanjewar
Colton D Smith
Pat Levitt
FOXP2 exhibits projection neuron class specific expression, but is not required for multiple aspects of cortical histogenesis
eLife
cortex
development
cell fate
axon guidance
neurogenesis
title FOXP2 exhibits projection neuron class specific expression, but is not required for multiple aspects of cortical histogenesis
title_full FOXP2 exhibits projection neuron class specific expression, but is not required for multiple aspects of cortical histogenesis
title_fullStr FOXP2 exhibits projection neuron class specific expression, but is not required for multiple aspects of cortical histogenesis
title_full_unstemmed FOXP2 exhibits projection neuron class specific expression, but is not required for multiple aspects of cortical histogenesis
title_short FOXP2 exhibits projection neuron class specific expression, but is not required for multiple aspects of cortical histogenesis
title_sort foxp2 exhibits projection neuron class specific expression but is not required for multiple aspects of cortical histogenesis
topic cortex
development
cell fate
axon guidance
neurogenesis
url https://elifesciences.org/articles/42012
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