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An Essential Role for Retinoid Receptors RARbeta and RXRgamma in Long-Term Potentiation and Depression

Item Type:Article
Title:An Essential Role for Retinoid Receptors RARbeta and RXRgamma in Long-Term Potentiation and Depression
Creators Name:Chiang, M.Y. and Misner, D. and Kempermann, G. and Schikorski, T. and Giguere, V. and Sucov, H.M. and Gage, F.H. and Stevens, C.F. and Evans, R.M.
Abstract:Hippocampal long-term potentiation (LTP) and long-term depression (LTD) are the most widely studied forms of synaptic plasticity thought to underlie spatial learning and memory. We report here that RARbeta deficiency in mice virtually eliminates hippocampal CA1 LTP and LTD. It also results in substantial performance deficits in spatial learning and memory tasks. Surprisingly, RXRgamma null mice exhibit a distinct phenotype in which LTD is lost whereas LTP is normal. Thus, while retinoid receptors contribute to both LTP and LTD, they do so in different ways. These findings not only genetically uncouple LTP and LTD but also reveal a novel and unexpected role for vitamin A in higher cognitive functions.
Keywords:Excitatory Postsynaptic Potentials, Hippocampus, Long-Term Potentiation, Maze Learning, Neuronal Plasticity, Phenotype, Retinoic Acid Receptors, Retinoid X Receptors, Space Perception, Synapses, Synaptic Transmission, Transcription Factors, Animals, Mice
Source:Neuron
ISSN:0896-6273
Publisher:Cell Press (U.S.A.)
Volume:21
Number:6
Page Range:1353-1361
Date:1 December 1998
Official Publication:https://doi.org/10.1016/S0896-6273(00)80654-6
PubMed:View item in PubMed

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