2017
DOI: 10.1016/j.nlm.2017.02.018
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BDNF controls object recognition memory reconsolidation

Abstract: a-amanitinMuscimol Novelty Retrieval a b s t r a c t Reconsolidation restabilizes memory after reactivation. Previously, we reported that the hippocampus is engaged in object recognition memory reconsolidation to allow incorporation of new information into the original engram. Here we show that BDNF is sufficient for this process, and that blockade of BDNF function in dorsal CA 1 impairs updating of the reactivated recognition memory trace.

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Cited by 54 publications
(41 citation statements)
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“…The expression levels of Bdnf and Zif268 in the mPFC and dorsal hippocampus were not affected by the retrieval of alcohol memories, contrary to the previous reports about the involvement of these genes in memory reconsolidation (Bozon et al, 2003;Lee et al, 2004;Tedesco et al, 2014;Radiske et al, 2015;Radiske et al, 2017). It is very likely that we did not observe this effect, because in our study the levels of the Bdnf and Zif268 mRNA were assessed 90 min after alcohol memory retrieval (since mice were also counterconditioned).…”
Section: Counterconditioning Manipulationcontrasting
confidence: 95%
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“…The expression levels of Bdnf and Zif268 in the mPFC and dorsal hippocampus were not affected by the retrieval of alcohol memories, contrary to the previous reports about the involvement of these genes in memory reconsolidation (Bozon et al, 2003;Lee et al, 2004;Tedesco et al, 2014;Radiske et al, 2015;Radiske et al, 2017). It is very likely that we did not observe this effect, because in our study the levels of the Bdnf and Zif268 mRNA were assessed 90 min after alcohol memory retrieval (since mice were also counterconditioned).…”
Section: Counterconditioning Manipulationcontrasting
confidence: 95%
“…Next, we assessed the mRNA expression of Zif268 and Bdnf, genes implicated in memory processing (Lee et al, 2004;Lee et al, 2005;Tedesco et al, 2014;Radiske et al, 2015;Radiske et al, 2017). We chose to focus on the mPFC and dorsal hippocampus, known to be involved in memory reconsolidation (Bozon et al, 2003;Lee et al, 2004;Tedesco et al, 2014;Radiske et al, 2015;Radiske et al, 2017), and in formation and expression of CPP or CPA (Zavala et al, 2003;Zhou and Zhu, 2006;Zarrindast et al, 2010;Chen et al, 2013;Otis et al, 2014;Slaker et al, 2015). Mice were trained in the alcohol-CPP procedure (Figure 2A; experimental design), and showed preference for the alcohol-paired compartment (Baseline test vs Place preference test 1 [t(22)=9.66, p<0.00001]).…”
Section: Bdnf Expression In the Mpfcmentioning
confidence: 99%
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“…However, ORM reconsolidation only recruits this brain region when memory RA occurs concomitantly with novelty detection (Rossato et al, 2007;Winters et al, 2011). When induced by presentation of a novel object, reconsolidation mediates integration of new information into the reactivated ORM trace and is controlled by BDNF (Radiske et al, 2017b) and accompanied by a brief early post-RA depotentiation period followed by a late stage of synaptic efficacy enhancement (Clarke et al, 2010). Because PKM controls the facilitatory effect of BDNF on hippocampal LTP (Mei et al, 2011) and both PKM and BDNF regulate AMPAR surface expression during synaptic potentiation (Caldeira et al, 2007;Yao et al, 2008;Jourdi and Kabbaj, 2013), which seems necessary for reconsolidation (Rao-Ruiz et al, 2011;Bhattacharya et al, 2017), we hypothesized that PKM modulates ORM reconsolidation by mediating the interplay between BDNF and AMPAR recycling, so its inhibition after retrieval in the presence of a novel object impairs ORM reconsolidation and causes amnesia by deleting the reactivated recognition memory trace.…”
Section: Introductionmentioning
confidence: 99%
“…This is the first instance of experimental evidence showing that felbamate has promoting effects on the BDNF system. It is known that BDNF has a lot of physiological effects in the brain, playing critical roles in learning and memory, hippocampal neurogenesis, neuronal survival, and many others [44][45][46][47][48]. BDNF is implicated in the pathophysiology of many neurological disorders in addition to depression, such as Alzheimer's disease and Parkinson's disease [48][49][50][51][52].…”
Section: Discussionmentioning
confidence: 99%