Nuclear Akt promotes neurite outgrowth in the early stage of neuritogenesis

In addition to its pivotal role in neuronal survival, PI3K/Aktsignaling is integral to neuronal differentiation and neuriteoutgrowth. However, the exact role of Akt in neuronaldifferentiation is still controversial. Here, we found thatnuclear expression of CA-Akt resulted in unusual rapid neuriteout...

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Main Author: Ji Hye Park1,2,3#, Sang Bae Lee1,#, Kyung-Hoon Lee2,3,* & Jee-Yin Ahn1,3,*
Format: Article
Language:English
Published: Korean Society for Biochemistry and Molecular Biology 2012-09-01
Series:BMB Reports
Subjects:
Online Access:http://www.jbmb.or.kr/jbmb/pdf.php?data=MTMwMTIyMTdAcGRmX3JhaW50cmFjZV9sZWV5c0AlNUI0NS05JTVEMTIwOTI3MTUzMl8lMjg1MjEtNTI1JTI5Qk1CXzEyLTExNC5wZGY=
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author Ji Hye Park1,2,3#, Sang Bae Lee1,#, Kyung-Hoon Lee2,3,* & Jee-Yin Ahn1,3,*
author_facet Ji Hye Park1,2,3#, Sang Bae Lee1,#, Kyung-Hoon Lee2,3,* & Jee-Yin Ahn1,3,*
author_sort Ji Hye Park1,2,3#, Sang Bae Lee1,#, Kyung-Hoon Lee2,3,* & Jee-Yin Ahn1,3,*
collection DOAJ
description In addition to its pivotal role in neuronal survival, PI3K/Aktsignaling is integral to neuronal differentiation and neuriteoutgrowth. However, the exact role of Akt in neuronaldifferentiation is still controversial. Here, we found thatnuclear expression of CA-Akt resulted in unusual rapid neuriteoutgrowth and overexpression of KD-Akt caused multipledendrite growth without specific axon elongation. Moreover,microarray data revealed that the expression of FOXQ1expression was about 10-fold higher in cells with nuclear,active Akt than in control cells. Quantitative real-time PCRanalysis showed that mRNA levels were upregulated inNLS-CA-Akt cells as compared to KD or EV cells. Furthermore,our FACS analysis demonstrated that overexpression ofNLS-CA-Akt accumulate cells in the G1 phase within 24 h,fitting with the rapid sprouting of neuritis. Thus, our dataimplied that at least in this early time frame, the overexpressionof nuclear, active Akt forced cells into neurite developmentthrough probably FOXQ1regulation.
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spelling doaj.art-7e03351e8a1d4d36b2c84f5308d174c32022-12-21T19:11:35ZengKorean Society for Biochemistry and Molecular BiologyBMB Reports1976-66961976-670X2012-09-01459521525Nuclear Akt promotes neurite outgrowth in the early stage of neuritogenesisJi Hye Park1,2,3#, Sang Bae Lee1,#, Kyung-Hoon Lee2,3,* & Jee-Yin Ahn1,3,*In addition to its pivotal role in neuronal survival, PI3K/Aktsignaling is integral to neuronal differentiation and neuriteoutgrowth. However, the exact role of Akt in neuronaldifferentiation is still controversial. Here, we found thatnuclear expression of CA-Akt resulted in unusual rapid neuriteoutgrowth and overexpression of KD-Akt caused multipledendrite growth without specific axon elongation. Moreover,microarray data revealed that the expression of FOXQ1expression was about 10-fold higher in cells with nuclear,active Akt than in control cells. Quantitative real-time PCRanalysis showed that mRNA levels were upregulated inNLS-CA-Akt cells as compared to KD or EV cells. Furthermore,our FACS analysis demonstrated that overexpression ofNLS-CA-Akt accumulate cells in the G1 phase within 24 h,fitting with the rapid sprouting of neuritis. Thus, our dataimplied that at least in this early time frame, the overexpressionof nuclear, active Akt forced cells into neurite developmentthrough probably FOXQ1regulation.http://www.jbmb.or.kr/jbmb/pdf.php?data=MTMwMTIyMTdAcGRmX3JhaW50cmFjZV9sZWV5c0AlNUI0NS05JTVEMTIwOTI3MTUzMl8lMjg1MjEtNTI1JTI5Qk1CXzEyLTExNC5wZGY=AktFOXQ1Neurite outgrowth
spellingShingle Ji Hye Park1,2,3#, Sang Bae Lee1,#, Kyung-Hoon Lee2,3,* & Jee-Yin Ahn1,3,*
Nuclear Akt promotes neurite outgrowth in the early stage of neuritogenesis
BMB Reports
Akt
FOXQ1
Neurite outgrowth
title Nuclear Akt promotes neurite outgrowth in the early stage of neuritogenesis
title_full Nuclear Akt promotes neurite outgrowth in the early stage of neuritogenesis
title_fullStr Nuclear Akt promotes neurite outgrowth in the early stage of neuritogenesis
title_full_unstemmed Nuclear Akt promotes neurite outgrowth in the early stage of neuritogenesis
title_short Nuclear Akt promotes neurite outgrowth in the early stage of neuritogenesis
title_sort nuclear akt promotes neurite outgrowth in the early stage of neuritogenesis
topic Akt
FOXQ1
Neurite outgrowth
url http://www.jbmb.or.kr/jbmb/pdf.php?data=MTMwMTIyMTdAcGRmX3JhaW50cmFjZV9sZWV5c0AlNUI0NS05JTVEMTIwOTI3MTUzMl8lMjg1MjEtNTI1JTI5Qk1CXzEyLTExNC5wZGY=
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