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...
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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 |
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