Memory, Plasticity and Sleep - A role for calcium permeable AMPA receptors?
Experience shapes and molds the brain throughout life. These changes in neuronal circuits are produced by a myriad of molecular and cellular processes. Simplistically, circuits are modified through changes in neurotransmitter release or through neurotransmitter detection at synapses. The predominant...
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doaj-53569bcca9524386acf8e01b1e35d90a2020-11-24T23:38:34ZengFrontiers Media S.A.Frontiers in Molecular Neuroscience1662-50992012-04-01510.3389/fnmol.2012.0004915048Memory, Plasticity and Sleep - A role for calcium permeable AMPA receptors?Jason D Shepherd0Massachusetts Institute of TechnologyExperience shapes and molds the brain throughout life. These changes in neuronal circuits are produced by a myriad of molecular and cellular processes. Simplistically, circuits are modified through changes in neurotransmitter release or through neurotransmitter detection at synapses. The predominant neurotransmitter receptor in excitatory transmission, the AMPA-type glutamate receptor, is exquisitely sensitive to changes in experience and synaptic activity. These ion channels are usually impermeable to calcium, a property conferred by the GluA2 subunit. However, GluA2-lacking AMPARs are permeable to calcium and have recently been shown to play a unique role in synaptic function. In this review, I will describe new findings on the role of calcium permeable AMPARs (CP-AMPARs) in experience-dependent and synaptic plasticity. These studies suggest that CP-AMPARs play a prominent role in maintaining circuits in a labile state where further plasticity can occur, thus promoting metaplasticity. Moreover, the abnormal expression of CP-AMPARs has been implicated in drug addiction and memory disorders and thus may be a novel therapeutic target.http://journal.frontiersin.org/Journal/10.3389/fnmol.2012.00049/fullMemorySleepFear conditioninghomeostatic plasticitysynaptic plasticitydrug addiction |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Jason D Shepherd |
spellingShingle |
Jason D Shepherd Memory, Plasticity and Sleep - A role for calcium permeable AMPA receptors? Frontiers in Molecular Neuroscience Memory Sleep Fear conditioning homeostatic plasticity synaptic plasticity drug addiction |
author_facet |
Jason D Shepherd |
author_sort |
Jason D Shepherd |
title |
Memory, Plasticity and Sleep - A role for calcium permeable AMPA receptors? |
title_short |
Memory, Plasticity and Sleep - A role for calcium permeable AMPA receptors? |
title_full |
Memory, Plasticity and Sleep - A role for calcium permeable AMPA receptors? |
title_fullStr |
Memory, Plasticity and Sleep - A role for calcium permeable AMPA receptors? |
title_full_unstemmed |
Memory, Plasticity and Sleep - A role for calcium permeable AMPA receptors? |
title_sort |
memory, plasticity and sleep - a role for calcium permeable ampa receptors? |
publisher |
Frontiers Media S.A. |
series |
Frontiers in Molecular Neuroscience |
issn |
1662-5099 |
publishDate |
2012-04-01 |
description |
Experience shapes and molds the brain throughout life. These changes in neuronal circuits are produced by a myriad of molecular and cellular processes. Simplistically, circuits are modified through changes in neurotransmitter release or through neurotransmitter detection at synapses. The predominant neurotransmitter receptor in excitatory transmission, the AMPA-type glutamate receptor, is exquisitely sensitive to changes in experience and synaptic activity. These ion channels are usually impermeable to calcium, a property conferred by the GluA2 subunit. However, GluA2-lacking AMPARs are permeable to calcium and have recently been shown to play a unique role in synaptic function. In this review, I will describe new findings on the role of calcium permeable AMPARs (CP-AMPARs) in experience-dependent and synaptic plasticity. These studies suggest that CP-AMPARs play a prominent role in maintaining circuits in a labile state where further plasticity can occur, thus promoting metaplasticity. Moreover, the abnormal expression of CP-AMPARs has been implicated in drug addiction and memory disorders and thus may be a novel therapeutic target. |
topic |
Memory Sleep Fear conditioning homeostatic plasticity synaptic plasticity drug addiction |
url |
http://journal.frontiersin.org/Journal/10.3389/fnmol.2012.00049/full |
work_keys_str_mv |
AT jasondshepherd memoryplasticityandsleeparoleforcalciumpermeableampareceptors |
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