Molecular Brain

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Open Access Short report

Protein synthesis and degradation are required for the incorporation of modified information into the pre-existing object-location memory

Jun-Hyeok Choi1, Jung-Eun Kim1 and Bong-Kiun Kaang1,2*

Author Affiliations

1 National Creative Research Initiative Center for Memory, Department of Biological Sciences, College of Natural Sciences, Seoul National University, 151-742 Seoul, Korea

2 Department of Brain and Cognitive Sciences, College of Natural Sciences, Seoul National University, 151-742 Seoul, Korea

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Molecular Brain 2010, 3:1 doi:10.1186/1756-6606-3-1

Published: 8 January 2010

Abstract

Although some reports indicate that protein synthesis dependent process may be induced by updating information, the role of protein synthesis and degradation in changing the content of pre-existing memory is yet unclear. In this study, we utilized an object rearrangement task, in which partial information related to a pre-existing memory is changed, promoting memory modification. Inhibitors of both protein synthesis and protein degradation impaired adequate incorporation of the altered information, each in a distinctive way. These results indicate that protein synthesis and degradation play key roles in memory modification.