Memory-Enhancing Intra-Basolateral Amygdala Infusions of Clenbuterol Increase Arc and Camkiiα Protein Expression in the Rostral Anterior Cingulate Cortex

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dc.contributor.authorHolloway-Erickson, Crystal M.en_US
dc.contributor.authorMcReynolds, Jayme R.en_US
dc.contributor.authorMcIntyre, Christa K.en_US
dc.date.accessioned2013-10-08T21:12:04Z
dc.date.available2013-10-08T21:12:04Z
dc.date.created2012-04-19
dc.description.abstractActivation of β-adrenoceptors in the basolateral complex of the amygdala (BLA) modulates memory through interactions with multiple memory systems. The cellular mechanisms for this interaction remain unresolved. Memory-modulating BLA manipulations influence expression of the protein product of the immediate early gene activity-regulated cytoskeletal-associated protein (Arc) in the dorsal hippocampus, and hippocampal expression of Arc protein is critically involved in memory consolidation and long-term potentiation. The present studies examined whether this influence of the BLA is specific to the hippocampus and to Arc protein. Like the hippocampus, the rostral portion of the anterior cingulate cortex (rACC) is involved in the consolidation of inhibitory avoidance (IA) memory, and IA training increases Arc protein in the rACC. Because the BLA interacts with the rACC in the consolidation of IA memory, the rACC is a potential candidate for further studies of BLA modulation of synaptic plasticity. The alpha isoform of the Calcium/Calmodulin-dependent protein kinase II (CaMKIIα) and the immediate early gene c-Fos are involved in long-term potentiation and memory. Both Arc and CaMKIIα proteins can be translated in isolated synapses, where the mRNA is localized, but c-Fos protein remains in the soma. To examine the influence of memory-modulating manipulations of the BLA on expression of these memory and plasticity-associated proteins in the rACC, male Sprague-Dawley rats were trained on an IA task and given intra-BLA infusions of either clenbuterol or lidocaine immediately after training. Findings suggest that noradrenergic stimulation of the BLA may modulate memory consolidation through effects on both synaptic proteins Arc and CaMKIIα, but not the somatic protein c-Fos. Furthermore, protein changes observed in the rACC following BLA manipulations suggest that the influence of the BLA on synaptic proteins is not limited to those in the dorsal hippocampus.en_US
dc.identifier.bibliographicCitationHolloway-Erickson, C., J. R. McReynolds, and C. K. McIntyre. 2012. "Memory-enhancing intra-basolateral amygdala infusions of clenbuterol increase Arc and CaMKIIα protein expression in the rostral anterior cingulate cortex." Frontiers in Behavioral Neuroscience 6(17).en_US
dc.identifier.issn1662-5153en_US
dc.identifier.issue17en_US
dc.identifier.urihttp://hdl.handle.net/10735.1/2876
dc.identifier.volume6en_US
dc.relation.urihttp://dx.doi.org/10.3389/fnbeh.2012.00017en_US
dc.rightsCC BY-NC 3.0 (Attribution-NonCommercial)en_US
dc.rights©2012 The Authorsen_US
dc.rights.urihttp://creativecommons.org/licenses/by-nc/3.0/en_US
dc.source.journalFrontiers in Behavioral Neuroscienceen_US
dc.subjectEmotionsen_US
dc.subjectMemoryen_US
dc.subjectNoradrenalineen_US
dc.subjectNorepinephrineen_US
dc.subjectNeuroplasticityen_US
dc.titleMemory-Enhancing Intra-Basolateral Amygdala Infusions of Clenbuterol Increase Arc and Camkiiα Protein Expression in the Rostral Anterior Cingulate Cortexen_US
dc.typeTexten_US
dc.type.genrearticleen_US

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