Cited by 166Genomics and Chromatin DynamicsMemory and Neural MechanismsNeuroscience and Neuropharmacology Research

Immediate and deferred epigenomic signatures of in vivo neuronal activation in mouse hippocampus

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Fernandez-Albert, Jordi, Lipinski, Michal, Lopez-Cascales, María T., Rowley, M. Jordan, Martin-Gonzalez, Ana M., del Blanco, Beatriz, Corces, Victor G., Barco, Angel·2019·Nature Neuroscience

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Abstract

Activity-driven transcription plays an important role in many brain processes, including those underlying memory and epilepsy. Here we combine genetic tagging of nuclei and ribosomes with RNA sequencing, chromatin immunoprecipitation with sequencing, assay for transposase-accessible chromatin using sequencing and Hi-C to investigate transcriptional and chromatin changes occurring in mouse hippocampal excitatory neurons at different time points after synchronous activation during seizure and sparse activation by novel context exploration. The transcriptional burst is associated with an increase in chromatin accessibility of activity-regulated genes and enhancers, de novo binding of activity-regulated transcription factors, augmented promoter-enhancer interactions and the formation of gene loops that bring together the transcription start site and transcription termination site of induced genes and may sustain the fast reloading of RNA polymerase complexes. Some chromatin occupancy changes and interactions, particularly those driven by AP1, remain long after neuronal activation and could underlie the changes in neuronal responsiveness and circuit connectivity observed in these neuroplasticity paradigms, perhaps thereby contributing to metaplasticity in the adult brain.

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Authors
Fernandez-Albert, J., Lipinski, M., Lopez-Cascales, M. T., Rowley, M. J., Martin-Gonzalez, A. M., del Blanco, B., Corces, V. G., & Barco, A.
Affiliations
Emory University (US)
Venue
Nature Neuroscience
Published
2019-09-09
Volume
22
Issue
10
Pages
1718-1730
ISSN
  • 1097-6256 (ISSN-L)
  • 1546-1726
OpenAlex
W2972344703
Cited by
166
References
81
Citations by year
2026: 16 · 2025: 27 · 2024: 31 · 2023: 26 · 2022: 23 · 2021: 23 · 2020: 19 · 2019: 1
FWCI
5.46
Type
journal article
Language
en
Open access
Locations
  • Nature Neuroscience (publishedVersion)
  • bioRxiv (Cold Spring Harbor Laboratory) (acceptedVersion)
  • PubMed (publishedVersion)
  • DIGITAL.CSIC (Spanish National Research Council (CSIC)) (submittedVersion)
Funders
  • Ministerio de Economía y Competitividad (SVP-2014-068387, SAF2017-87928-R, SEV-2017-0723)
  • U.S. Department of Health & Human Services | NIH | National Center for Research Resources (GM035463)
  • Generalitat Valenciana (PROMETEO/2016/026)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Genomics and Chromatin Dynamics
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Memory and Neural Mechanisms
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
Keywords
neuronal activation, hippocampus, excitatory neurons, chromatin accessibility, enhancers, enhancer-promoter interactions, AP-1, metaplasticity, neuroplasticity, seizures, epigenomic signatures, chromatin occupancy
MeSH terms
Animals, Chromatin, Enhancer Elements, Genetic, Hippocampus, Male, Mice, Inbred C57BL, Neuronal Plasticity, Neurons, Promoter Regions, Genetic, Seizures, Status Epilepticus, Transcription, Genetic, Genes, Immediate-Early, Transcription Factor AP-1, Mice, Epigenomics

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