Cited by 406Neuroscience and Neuropharmacology ResearchMicroRNA in disease regulationMemory and Neural Mechanisms

Characterization of Small RNAs in Aplysia Reveals a Role for miR-124 in Constraining Synaptic Plasticity through CREB

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Rajasethupathy, Priyamvada, Fiumara, Ferdinando, Sheridan, Robert, Betel, Doron, Puthanveettil, Sathyanarayanan V., Russo, James J., Sander, Chris, Tuschl, Thomas +1 more·2009·Neuron

Abstract

Memory storage and memory-related synaptic plasticity rely on precise spatiotemporal regulation of gene expression. To explore the role of small regulatory RNAs in learning-related synaptic plasticity, we carried out massive parallel sequencing to profile the small RNAs of Aplysia californica. We identified 170 distinct miRNAs, 13 of which were novel and specific to Aplysia. Nine miRNAs were brain enriched, and several of these were rapidly downregulated by transient exposure to serotonin, a modulatory neurotransmitter released during learning. Further characterization of the brain-enriched miRNAs revealed that miR-124, the most abundant and well-conserved brain-specific miRNA, was exclusively present presynaptically in a sensory-motor synapse where it constrains serotonin-induced synaptic facilitation through regulation of the transcriptional factor CREB. We therefore present direct evidence that a modulatory neurotransmitter important for learning can regulate the levels of small RNAs and present a role for miR-124 in long-term plasticity of synapses in the mature nervous system.

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Crossref · 10.1016/j.neuron.2009.05.029

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Authors
Rajasethupathy, P., Fiumara, F., Sheridan, R., Betel, D., Puthanveettil, S. V., Russo, J. J., Sander, C., Tuschl, T., & Kandel, E.
Affiliations
  • Howard Hughes Medical Institute (US)
  • University of Turin (IT)
  • Memorial Sloan Kettering Cancer Center (US)
  • Columbia University (US)
Corresponding author
  • Tuschl, Thomas
  • Kandel, Eric
Venue
Neuron
Publisher
Elsevier BV
Published
2009-09
Volume
63
Issue
6
Pages
803-817
ISSN
0896-6273 (ISSN-L)
OpenAlex
W2059222949
Cited by
406
References
52
Citations by year
2026: 2 · 2025: 16 · 2024: 16 · 2023: 18 · 2022: 15 · 2021: 17 · 2020: 24 · 2019: 20 · 2018: 16 · 2017: 29 · 2016: 26 · 2015: 26 · 2014: 36 · 2013: 40 · 2012: 37
FWCI
14.51
Type
journal article
Language
en
Open access
Locations
  • Neuron (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
  • Institutional Research Information System University of Turin (University of Turin) (submittedVersion)
Funders
  • Howard Hughes Medical Institute
  • National Institutes of Health
  • Italian Academy for Advanced Studies in America, Columbia University
  • National Institute of Mental Health (R01MH075026, F30MH086267)
  • National Human Genome Research Institute (P50HG002806)
  • National Institute of General Medical Sciences (P01GM073047)
  • National Institute of Neurological Disorders and Stroke (R01NS060762)
Topics
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cancer Research › MicroRNA in disease regulation
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Memory and Neural Mechanisms
Keywords
microRNA, miR-124, Aplysia californica, synaptic plasticity, CREB, serotonin, sensory-motor synapses, presynaptic modulation, memory storage, novel miRNAs, long-term plasticity, small regulatory RNAs
MeSH terms
Analysis of Variance, Animals, Aplysia, Central Nervous System, Dose-Response Relationship, Drug, Enzyme Inhibitors, Molecular Biology, Mutation, Nerve Tissue Proteins, Neuronal Plasticity, Neurons, Protein Binding, Serotonin, Synapses, Time Factors, Oligonucleotides, Antisense, Kinesins, Cyclic AMP Response Element-Binding Protein, Evolution, Molecular, Excitatory Postsynaptic Potentials, MicroRNAs, Ubiquitin Thiolesterase

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