Document Detail


Expression of the neural specific protein, GAP-43, dramatically lengthens the cell cycle in fibroblasts.
MedLine Citation:
PMID:  19589379     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
It has been demonstrated that during neurogenesis in the mammalian brain, cell-cycle lengthening in neuronal progenitors may cause them to switch from proliferation to neuron-generating division. However, little is known about the cellular mechanisms involved in lengthening of the cell cycle. Growth-associated protein-43 (GAP-43) is a nervous system-specific protein whose expression in proliferating neuroblasts is related to neurogenesis. In this study, we investigated the effect of GAP-43 on cell-cycle progression in transgenic fibroblast cells. Using cumulative bromodeoxyuridine labeling, cell-cycle kinetics in GAP-43-transgenic and control NIH 3T3 cells were analyzed. Our data demonstrate that expression of GAP-43 in fibroblasts results in lengthening of the cell cycle compared to control fibroblasts. The mechanism by which GAP-43 mediated this effect appeared to involve increasing the time spent by the cells in the G(1) phase of the cell cycle.
Authors:
Junpeng Zhao; Yajuan Yao; Changlei Xu; Xiaohua Jiang; Qunyuan Xu
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2009-07-07
Journal Detail:
Title:  International journal of developmental neuroscience : the official journal of the International Society for Developmental Neuroscience     Volume:  27     ISSN:  1873-474X     ISO Abbreviation:  Int. J. Dev. Neurosci.     Publication Date:  2009 Oct 
Date Detail:
Created Date:  2009-08-18     Completed Date:  2009-11-13     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8401784     Medline TA:  Int J Dev Neurosci     Country:  England    
Other Details:
Languages:  eng     Pagination:  531-7     Citation Subset:  IM    
Affiliation:
Beijing Institute for Neuroscience, Beijing Center for Neural Regeneration and Repair, Key Laboratory for Neurodegenerative Diseases of the Ministry of Education, Capital Medical University, Beijing 100069, PR China.
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MeSH Terms
Descriptor/Qualifier:
Animals
Bromodeoxyuridine
Cell Cycle / genetics*
Cell Proliferation
Fibroblasts / cytology,  metabolism*
G1 Phase / genetics
GAP-43 Protein / genetics,  metabolism*
Gene Expression Regulation, Developmental / genetics
Mice
NIH 3T3 Cells
Neurogenesis / genetics*
Neurons / metabolism*
Stem Cells / metabolism*
Transgenes / genetics
Chemical
Reg. No./Substance:
0/GAP-43 Protein; 59-14-3/Bromodeoxyuridine

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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