Document Detail


Regulation of NeuroD expression by activation of the protein kinase-C pathway in Y79 human retinoblastoma cells.
MedLine Citation:
PMID:  10507539     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
To examine the signals that regulate NeuroD expression, we analyzed the effects of activation of two major signal pathways, the protein kinase A (PKA) pathway and the protein kinase C (PKC) pathway, on the expression of NeuroD in Y79human retinoblastoma cells. Activation of PKC resulted in marked induction of NeuroD mRNA and NeuroD protein. NeuroD mRNA induction was inhibited by calphostin C, an inhibitor of PKC. On the other hand, stimulation of PKA by forskolin had a weak suppressive effect on NeuroD mRNA expression. Induction of NeuroD expression was followed by enhancement of expression of the AK1 gene, one of the target genes of NeuroD, which encodes adenylate kinase isozyme 1, an important enzyme in the cellular adenine nucleotide homeostasis. Our results indicate that NeuroD expression is regulated, at least in part, by the PKC pathway and not by the PKA pathway.
Authors:
T Noma; Y S Yoon; Y Yamashiro; K Fujisawa; A Nakazawa
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Neuroscience letters     Volume:  272     ISSN:  0304-3940     ISO Abbreviation:  Neurosci. Lett.     Publication Date:  1999 Sep 
Date Detail:
Created Date:  1999-11-09     Completed Date:  1999-11-09     Revised Date:  2009-09-04    
Medline Journal Info:
Nlm Unique ID:  7600130     Medline TA:  Neurosci Lett     Country:  IRELAND    
Other Details:
Languages:  eng     Pagination:  45-8     Citation Subset:  IM    
Affiliation:
Department of Biochemistry, Yamaguchi University School of Medicine, Ube, Japan. tnoma@po.cc.yamaguchi-u.ac.jp
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MeSH Terms
Descriptor/Qualifier:
Adenylate Kinase / drug effects*,  metabolism
Basic Helix-Loop-Helix Transcription Factors
Cyclic AMP-Dependent Protein Kinases / drug effects*,  metabolism
Enzyme Activation / drug effects
Forskolin / pharmacology
Humans
Isoenzymes / drug effects*,  metabolism
Nerve Tissue Proteins / drug effects,  metabolism*
Protein Kinase C / drug effects*,  metabolism
RNA, Messenger / drug effects,  metabolism*
Retinoblastoma
Signal Transduction / drug effects,  physiology
Tetradecanoylphorbol Acetate / pharmacology
Tumor Cells, Cultured
Chemical
Reg. No./Substance:
0/Basic Helix-Loop-Helix Transcription Factors; 0/Isoenzymes; 0/Nerve Tissue Proteins; 0/RNA, Messenger; 16561-29-8/Tetradecanoylphorbol Acetate; 169238-82-8/NeuroD protein; 66428-89-5/Forskolin; EC 2.7.11.11/Cyclic AMP-Dependent Protein Kinases; EC 2.7.11.13/Protein Kinase C; EC 2.7.4.3/Adenylate Kinase; EC 2.7.4.3/adenylate kinase 1

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


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