Inhibition and enhancement of contextual fear memory destabilization.
Inhibition and enhancement of contextual fear memory destabilization.
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DOI:
10.3389/fnbeh.2014.00144
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发表时间:
2014
影响因子:
3
通讯作者:
Flavell CR
中科院分区:
文献类型:
--
作者:
Lee JL;Flavell CR
The reactivation of a memory can result in its destabilization, necessitating a process of memory reconsolidation to maintain its persistence. Here we show that the destabilization of a contextual fear memory is potentiated by the cannabinoid CB1 receptor agonist Arachidonyl-2-chloroethylamide (ACEA). Co-infusion of ACEA and the IkappaB kinase (IKK) inhibitor sulfasalazine (Sulf) into the dorsal hippocampus impaired contextual fear memory reconsolidation. This observation was achieved under behavioral conditions that, by themselves, did not result in a reconsolidation impairment by Sulf alone. Moreover, we show that the destabilization of a contextual fear memory is dependent upon neuronal activity in the dorsal hippocampus, but not memory expression per se. The effect on contextual fear memory destabilization of intra-hippocampal ACEA was replicated by systemic injections, allowing an amnestic effect of MK-801. These results indicate that memory expression and destabilization, while being independent from one another, are both dependent upon memory reactivation. Moreover, memory destabilization can be enhanced pharmacologically, which may be of therapeutic potential.
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影响因子:
3.3
作者:
Alvares, L. De Oliveira;Genro, B. Pasqualini;Quillfeldt, J. A.
通讯作者:
Quillfeldt, J. A.
影响因子:
64.8
作者:
Nader, K;Schafe, GE;Le Doux, JE
通讯作者:
Le Doux, JE
影响因子:
2.9
作者:
Lorenzini, CA;Baldi, E;Tassoni, G
通讯作者:
Tassoni, G
DOI:
10.1523/jneurosci.3273-12.2013
发表时间:
2013-01-16
期刊:
The Journal of neuroscience : the official journal of the Society for Neuroscience
影响因子:
--
作者:
Milton AL;Merlo E;Ratano P;Gregory BL;Dumbreck JK;Everitt BJ
通讯作者:
Everitt BJ
影响因子:
2.7
作者:
Barreiro, Karina A.;Suarez, Luis D.;Delorenzi, Alejandro
通讯作者:
Delorenzi, Alejandro