Publication Date:
2006-08-12
Description:
Mutations in the human neurotrypsin gene are associated with autosomal recessive mental retardation. To further understand the pathophysiological consequences of the lack of this serine protease, we studied Tequila (Teq), the Drosophila neurotrypsin ortholog, using associative memory as a behavioral readout. We found that teq inactivation resulted in a long-term memory (LTM)-specific defect. After LTM conditioning of wild-type flies, teq expression transiently increased in the mushroom bodies. Moreover, specific inhibition of teq expression in adult mushroom bodies resulted in a reversible LTM defect. Hence, the Teq pathway is essential for information processing in Drosophila.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Didelot, Gerard -- Molinari, Florence -- Tchenio, Paul -- Comas, Daniel -- Milhiet, Elodie -- Munnich, Arnold -- Colleaux, Laurence -- Preat, Thomas -- New York, N.Y. -- Science. 2006 Aug 11;313(5788):851-3.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Genes et Dynamique des Systemes de Memoire, UMR CNRS 7637, Ecole Superieure de Physique et de Chimie Industrielles, 10 Rue Vauquelin 75005 Paris, France.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/16902143" target="_blank"〉PubMed〈/a〉
Keywords:
Amino Acid Sequence
;
Animals
;
Animals, Genetically Modified
;
Conditioning, Classical
;
Drosophila Proteins/chemistry/genetics/*physiology
;
Drosophila melanogaster/genetics/*physiology
;
Gene Expression
;
Gene Expression Regulation
;
Humans
;
Learning
;
*Memory
;
Mifepristone/pharmacology
;
Models, Animal
;
Molecular Sequence Data
;
Mushroom Bodies/anatomy & histology/physiology
;
Mutation
;
Odors
;
RNA Interference
;
RNA, Messenger/genetics/metabolism
;
Serine Endopeptidases/chemistry/genetics/*physiology
Print ISSN:
0036-8075
Electronic ISSN:
1095-9203
Topics:
Biology
,
Chemistry and Pharmacology
,
Computer Science
,
Medicine
,
Natural Sciences in General
,
Physics
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