A bioinformatics analysis of memory consolidation reveals involvement of the transcription factor c-rel.

TitleA bioinformatics analysis of memory consolidation reveals involvement of the transcription factor c-rel.
Publication TypeJournal Article
Year of Publication2004
AuthorsLevenson, JM, Choi, S, Lee, S-Y, Cao, YAnna, Ahn, HJin, Worley, KC, Pizzi, M, Liou, H-C, J Sweatt, D
JournalJ Neurosci
Volume24
Issue16
Pagination3933-43
Date Published2004 Apr 21
ISSN1529-2401
KeywordsAnimals, Behavior, Animal, Chromosomes, Computational Biology, Conditioning, Classical, Electroshock, Fear, Gene Expression Profiling, Gene Expression Regulation, Hippocampus, Male, Memory, Mice, Mice, Inbred C57BL, Mice, Knockout, Oligonucleotide Array Sequence Analysis, Pain Measurement, Proto-Oncogene Proteins c-rel, Receptors, N-Methyl-D-Aspartate, Spatial Behavior
Abstract

Consolidation of long-term memory (LTM) is a complex process requiring synthesis of new mRNAs and proteins. Many studies have characterized the requirement for de novo mRNA and protein synthesis; however, few studies have comprehensively identified genes regulated during LTM consolidation. We show that consolidation of long-term contextual memory in the hippocampus triggers altered expression of numerous genes encompassing many aspects of neuronal function. Like contextual memory formation, this altered gene expression required NMDA receptor activation and was specific for situations in which the animal formed an association between a physical context and a sensory stimulus. Using a bioinformatics approach, we found that regulatory elements for several transcription factors are over-represented in the upstream region of genes regulated during consolidation of LTM. Using a knock-out mouse, we found that c-rel, one of the transcription factors identified in our bioinformatics study, is necessary for hippocampus-dependent long-term memory formation.

DOI10.1523/JNEUROSCI.5646-03.2004
Alternate JournalJ. Neurosci.
PubMed ID15102909
Grant ListMH57014 / MH / NIMH NIH HHS / United States