Loss of Suppressor of Fused in Mid-Corticogenesis Leads to the Expansion of Intermediate Progenitors

Neural progenitors in the embryonic neocortex must be tightly regulated in order to generate the correct number and projection neuron subtypes necessary for the formation of functional neocortical circuits. In this study, we show that the intracellular protein Suppressor of Fused (Sufu) regulates th...

Full description

Bibliographic Details
Main Authors: Odessa R. Yabut, Hui Xuan Ng, Gloria Fernandez, Keejung Yoon, Jeremy Kuhn, Samuel J. Pleasure
Format: Article
Language:English
Published: MDPI AG 2016-09-01
Series:Journal of Developmental Biology
Subjects:
Online Access:http://www.mdpi.com/2221-3759/4/4/29
id doaj-94660155f7bd4b32886bbe2f57277bf3
record_format Article
spelling doaj-94660155f7bd4b32886bbe2f57277bf32020-11-24T22:25:49ZengMDPI AGJournal of Developmental Biology2221-37592016-09-01442910.3390/jdb4040029jdb4040029Loss of Suppressor of Fused in Mid-Corticogenesis Leads to the Expansion of Intermediate ProgenitorsOdessa R. Yabut0Hui Xuan Ng1Gloria Fernandez2Keejung Yoon3Jeremy Kuhn4Samuel J. Pleasure5Department of Neurology, University of California San Francisco, San Francisco, CA 94158, USADepartment of Neurology, University of California San Francisco, San Francisco, CA 94158, USADepartment of Neurology, University of California San Francisco, San Francisco, CA 94158, USADepartment of Neurology, University of California San Francisco, San Francisco, CA 94158, USADepartment of Neurology, University of California San Francisco, San Francisco, CA 94158, USADepartment of Neurology, University of California San Francisco, San Francisco, CA 94158, USANeural progenitors in the embryonic neocortex must be tightly regulated in order to generate the correct number and projection neuron subtypes necessary for the formation of functional neocortical circuits. In this study, we show that the intracellular protein Suppressor of Fused (Sufu) regulates the proliferation of intermediate progenitor (IP) cells at later stages of corticogenesis to affect the number of Cux1+ upper layer neurons in the postnatal neocortex. This correlates with abnormal levels of the repressor form of Gli3 (Gli3R) and the ectopic expression of Patched 1 (Ptch1), a Sonic Hedgehog (Shh) target gene. These studies reveal that the canonical role of Sufu as an inhibitor of Shh signaling is conserved at later stages of corticogenesis and that Sufu plays a crucial role in regulating neuronal number by controlling the cell cycle dynamics of IP cells in the embryonic neocortex.http://www.mdpi.com/2221-3759/4/4/29Suppressor of FusedSonic HedgehogGli3corticogenesisneurogenesis
collection DOAJ
language English
format Article
sources DOAJ
author Odessa R. Yabut
Hui Xuan Ng
Gloria Fernandez
Keejung Yoon
Jeremy Kuhn
Samuel J. Pleasure
spellingShingle Odessa R. Yabut
Hui Xuan Ng
Gloria Fernandez
Keejung Yoon
Jeremy Kuhn
Samuel J. Pleasure
Loss of Suppressor of Fused in Mid-Corticogenesis Leads to the Expansion of Intermediate Progenitors
Journal of Developmental Biology
Suppressor of Fused
Sonic Hedgehog
Gli3
corticogenesis
neurogenesis
author_facet Odessa R. Yabut
Hui Xuan Ng
Gloria Fernandez
Keejung Yoon
Jeremy Kuhn
Samuel J. Pleasure
author_sort Odessa R. Yabut
title Loss of Suppressor of Fused in Mid-Corticogenesis Leads to the Expansion of Intermediate Progenitors
title_short Loss of Suppressor of Fused in Mid-Corticogenesis Leads to the Expansion of Intermediate Progenitors
title_full Loss of Suppressor of Fused in Mid-Corticogenesis Leads to the Expansion of Intermediate Progenitors
title_fullStr Loss of Suppressor of Fused in Mid-Corticogenesis Leads to the Expansion of Intermediate Progenitors
title_full_unstemmed Loss of Suppressor of Fused in Mid-Corticogenesis Leads to the Expansion of Intermediate Progenitors
title_sort loss of suppressor of fused in mid-corticogenesis leads to the expansion of intermediate progenitors
publisher MDPI AG
series Journal of Developmental Biology
issn 2221-3759
publishDate 2016-09-01
description Neural progenitors in the embryonic neocortex must be tightly regulated in order to generate the correct number and projection neuron subtypes necessary for the formation of functional neocortical circuits. In this study, we show that the intracellular protein Suppressor of Fused (Sufu) regulates the proliferation of intermediate progenitor (IP) cells at later stages of corticogenesis to affect the number of Cux1+ upper layer neurons in the postnatal neocortex. This correlates with abnormal levels of the repressor form of Gli3 (Gli3R) and the ectopic expression of Patched 1 (Ptch1), a Sonic Hedgehog (Shh) target gene. These studies reveal that the canonical role of Sufu as an inhibitor of Shh signaling is conserved at later stages of corticogenesis and that Sufu plays a crucial role in regulating neuronal number by controlling the cell cycle dynamics of IP cells in the embryonic neocortex.
topic Suppressor of Fused
Sonic Hedgehog
Gli3
corticogenesis
neurogenesis
url http://www.mdpi.com/2221-3759/4/4/29
work_keys_str_mv AT odessaryabut lossofsuppressoroffusedinmidcorticogenesisleadstotheexpansionofintermediateprogenitors
AT huixuanng lossofsuppressoroffusedinmidcorticogenesisleadstotheexpansionofintermediateprogenitors
AT gloriafernandez lossofsuppressoroffusedinmidcorticogenesisleadstotheexpansionofintermediateprogenitors
AT keejungyoon lossofsuppressoroffusedinmidcorticogenesisleadstotheexpansionofintermediateprogenitors
AT jeremykuhn lossofsuppressoroffusedinmidcorticogenesisleadstotheexpansionofintermediateprogenitors
AT samueljpleasure lossofsuppressoroffusedinmidcorticogenesisleadstotheexpansionofintermediateprogenitors
_version_ 1725756129219182592