Document Detail

Decrease in level of APG-2, a member of the heat shock protein 110 family, in murine brain following systemic administration of kainic acid.
MedLine Citation:
PMID:  11522319     Owner:  NLM     Status:  MEDLINE    
APG-2 belongs to the heat shock protein 110 family. Although kainic acid (KA)-induced seizures are known to elicit expression of inducible heat shock protein 70 (HSP70) in the brain, no investigation has been carried out on the APG-2 level after excitatory amino acid-induced seizures. By means of an immunoblot assay, we determined the levels of HSP70 and APG-2 in discrete brain structures of mice after a single intraperitoneal injection of KA or N-methyl-D-aspartic acid (NMDA). APG-2 level was significantly decreased in frontal cortex, hippocampus, and striatum three days after the administration of KA, while HSP70 level was increased in these regions following the administration. In any of these regions, APG-2 levels were returned to the control levels 10 days after the administration. However, no significant changes were observed in levels of both HSP70 and APG-2 in hypothalamus, midbrain, medulla-pons, and cerebellum of the mice. By contrast, NMDA administration did not significantly affect both levels in any of the regions examined. These findings indicate that the transient decrease in APG-2 expression is one of the intracellular events elicited by signals peculiar to KA, but not by those peculiar to NMDA, in telencephalon of murine brain.
K Ogita; R Takagi; N Oyama; H Okuda; F Ito; M Okui; N Shimizu; Y Yoneda
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Neuropharmacology     Volume:  41     ISSN:  0028-3908     ISO Abbreviation:  Neuropharmacology     Publication Date:  2001 Sep 
Date Detail:
Created Date:  2001-08-27     Completed Date:  2001-12-04     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0236217     Medline TA:  Neuropharmacology     Country:  England    
Other Details:
Languages:  eng     Pagination:  285-93     Citation Subset:  IM    
Department of Pharmacology, Faculty of Pharmaceutical Sciences, Setsunan University, 45-1 Nagaotoge-cho, Hirakata, Osaka 573-0101, Japan.
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MeSH Terms
Behavior, Animal / drug effects
Brain / anatomy & histology,  drug effects
Brain Chemistry / drug effects*
Excitatory Amino Acid Agonists / administration & dosage,  pharmacology*
HSP110 Heat-Shock Proteins
HSP70 Heat-Shock Proteins / metabolism*
Heat-Shock Proteins / metabolism*
Kainic Acid / administration & dosage,  pharmacology*
N-Methylaspartate / pharmacology
Reg. No./Substance:
0/Excitatory Amino Acid Agonists; 0/HSP110 Heat-Shock Proteins; 0/HSP70 Heat-Shock Proteins; 0/Heat-Shock Proteins; 0/Hsp105 protein, mouse; 0/Hspa4 protein, mouse; 487-79-6/Kainic Acid; 6384-92-5/N-Methylaspartate

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