Cited by 94Memory and Neural MechanismsNeuroscience and Neuropharmacology ResearchMemory Processes and Influences

p300/CBP-Associated Factor Selectively Regulates the Extinction of Conditioned Fear

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Wei, Wei, Coelho, Carlos M., Li, Xiang, Marek, Roger, Yan, Shanzhi, Anderson, Shawn, Meyers, David, Mukherjee, Chandrani +9 more·2012·The Journal of Neuroscience

Abstract

It is well established that the activity of chromatin-modifying enzymes is crucial for regulating gene expression associated with hippocampal-dependent memories. However, very little is known about how these epigenetic mechanisms influence the formation of cortically dependent memory, particularly when there is competition between opposing memory traces, such as that which occurs during the acquisition and extinction of conditioned fear. Here we demonstrate, in C57BL/6 mice, that the activity of p300/CBP-associated factor (PCAF) within the infralimbic prefrontal cortex is required for long-term potentiation and is necessary for the formation of memory associated with fear extinction, but not for fear acquisition. Further, systemic administration of the PCAF activator SPV106 enhances memory for fear extinction and prevents fear renewal. The selective influence of PCAF on fear extinction is mediated, in part, by a transient recruitment of the repressive transcription factor ATF4 to the promoter of the immediate early gene zif268, which competitively inhibits its expression. Thus, within the context of fear extinction, PCAF functions as a transcriptional coactivator, which may facilitate the formation of memory for fear extinction by interfering with reconsolidation of the original memory trace.

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Crossref · 10.1523/jneurosci.0178-12.2012

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  • Threat extinction is associated with acetylation of histones near the Bdnf locus, changes to the p300/CBP complex (PCAF), and deposition of DNA-modification marks such as 5-hydroxymethylcytosine and N6-methyl-2'deoxyadenosine (m6dA) near loci of activity-dependent genes such as Bdnf.

    “In the IL, threat extinction is associated with acetylation of histones near the Bdnf locus [61], changes to the p300/CBP complex (PCAF) [62], as well as deposition of DNA-modification marks such as 5-hydroxymethylcytosine and N6-methyl-2’deoxyadenosine (m6dA) near loci of activity-dependent genes such as Bdnf.”
  • Inhibition of PCAF in IL interferes with threat extinction.

    “Additionally, inhibition of PCAF in IL was shown to interfere with threat extinction [62].”

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Research works printed but not linked: 8

  1. Herry C Behavioral and paired-pulse facilitation analyses of long-lasting depression at excitatory synapses in the medial prefrontal cortex in mice Behav Brain Res 2003 146 89 96 14643462
  2. Lau OD Kundu TK Soccio RE Ait-Si-Ali S Khalil EM Vassilev A Wolffe AP Nakatani Y Roeder RG Cole PA Hats off: Selective synthetic inhibitors of the histone acetyltransferases p300 and PCAF Mol Cell 2000 5 589 595 10882143
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Authors
Wei, W., Coelho, C. M., Li, X., Marek, R., Yan, S., Anderson, S., Meyers, D., Mukherjee, C., Sbardella, G., Castellano, S., Milite, C., Rotili, D., Mai, A., Cole, P. A., Sah, P., Kobor, M. S., & Bredy, T. W.
Affiliations
  • The University of Queensland (AU)
  • University of British Columbia (CA)
  • Johns Hopkins University (US)
  • University of Salerno (IT)
  • Sapienza University of Rome (IT)
Corresponding author
Bredy, Timothy W.
Venue
The Journal of Neuroscience
Published
2012-08-29
Volume
32
Issue
35
Pages
11930-11941
ISSN
  • 0270-6474 (ISSN-L)
  • 1529-2401
OpenAlex
W1998769481
Cited by
93
References
92
Citations by year
2025: 4 · 2024: 6 · 2023: 3 · 2022: 5 · 2021: 3 · 2020: 3 · 2019: 8 · 2018: 4 · 2017: 5 · 2016: 15 · 2015: 9 · 2014: 15 · 2013: 13
FWCI
6.06
Type
journal article
Language
en
Open access
Locations
  • Journal of Neuroscience (publishedVersion, cc-by-nc-sa)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • IRIS Research product catalog (Sapienza University of Rome) (submittedVersion)
  • Iris (Roma Tre University) (submittedVersion)
Funders
  • Australian Research Council (DP1096148)
  • National Health and Medical Research Council (1023127)
  • National Institute on Drug Abuse (K99DA026503)
Topics
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Memory and Neural Mechanisms
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Memory Processes and Influences
Keywords
PCAF, fear extinction, fear conditioning, infralimbic cortex, long-term potentiation, ATF4, Zif268, transcriptional coactivator, memory reconsolidation, fear renewal, chromatin modification
MeSH terms
p300-CBP-Associated Factor, Animals, Conditioning, Psychological, Extinction, Psychological, Fear, Humans, Male, Mice, Inbred C57BL, Trans-Activators, p300-CBP Transcription Factors, Mice, HEK293 Cells

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