Cited by 266Neuroscience and Neuropharmacology ResearchAxon Guidance and Neuronal SignalingNeurogenesis and neuroplasticity mechanisms

The Reelin signaling pathway promotes dendritic spine development in hippocampal neurons

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Niu, Sanyong, Yabut, Odessa, D'Arcangelo, Gabriella·2008·The Journal of Neuroscience

Abstract

The development of distinct cellular layers and precise synaptic circuits is essential for the formation of well functioning cortical structures in the mammalian brain. The extracellular protein Reelin, through the activation of a core signaling pathway, including the receptors ApoER2 and VLDLR (very low density lipoprotein receptor) and the adapter protein Dab1 (Disabled-1), controls the positioning of radially migrating principal neurons, promotes the extension of dendritic processes in immature forebrain neurons, and affects synaptic transmission. Here we report for the first time that the Reelin signaling pathway promotes the development of postsynaptic structures such as dendritic spines in hippocampal pyramidal neurons. Our data underscore the importance of Reelin as a factor that promotes the maturation of target neuronal populations and the development of excitatory circuits in the postnatal hippocampus. These findings may have implications for understanding the origin of cognitive disorders associated with Reelin deficiency.

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Crossref · 10.1523/jneurosci.1917-08.2008

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  • ApoER2 mediates Reelin signaling to enhance learning and memory in mice.

    “Since loss of ApoER2 impairs LTP, and since ApoER2 mediates Reelin signaling to enhance learning and memory in mice (Bosch et al., 2016; Niu et al., 2008; Rogers et al., 2011), it has been suggested that increased ApoER2 expression would be beneficial.”
  • Exogenous recombinant Reelin recovers the dendritic spine deficit in cultured hippocampal slices from HRM and reeler mice and increases dendritic spine density in wild-type control slices.

    “Exogenous recombinant Reelin recovers this deficit in cultured hippocampal slices from HRM and reeler mice as well as increases dendritic spine density in wild-type control slices (14).”
  • ApoER2/VLDLR and both Dab1 and SFKs are essential for Reelin-mediated spinogenesis.

    “The downstream signaling partners, ApoER2/VLDLR and both Dab1 and SFKs, are essential for this Reelin-mediated spinogenesis (14).”
  • HRM and reeler hippocampal neurons have fewer dendritic spines along their dendrites compared with wild-type neurons, and the extent of this effect is proportional to the reduction in Reelin protein abundance.

    “HRM and reeler hippocampal neurons have fewer dendritic spines along their dendrites when compared with wild-type neurons, and the extent of this effect is proportional to the reduction in Reelin protein abundance (14,15).”
  • Postsynaptic compartments of both homozygous and heterozygous reeler synapses have a drastic and comparable reduction in the NR2A subunit of NMDAR and PSD-95 compared with wild-type synapses.

    “The postsynaptic compartments of both homozygous and heterozygous reeler synapses have a drastic and comparable reduction in the NR2A subunit of the NMDAR and PSD-95 in comparison with wild-type synapses (14).”

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Authors
Niu, S., Yabut, O., & D'Arcangelo, G.
Affiliations
  • Baylor College of Medicine (US)
  • Rutgers, The State University of New Jersey (US)
Venue
The Journal of Neuroscience
Published
2008-10-08
Volume
28
Issue
41
Pages
10339-10348
ISSN
  • 0270-6474 (ISSN-L)
  • 1529-2401
OpenAlex
W2141654359
Cited by
266
References
62
Citations by year
2026: 2 · 2025: 8 · 2024: 6 · 2023: 13 · 2022: 19 · 2021: 15 · 2020: 17 · 2019: 11 · 2018: 9 · 2017: 16 · 2016: 24 · 2015: 11 · 2014: 24 · 2013: 20 · 2012: 14
FWCI
8.22
Type
journal article
Language
en
Open access
Locations
  • Journal of Neuroscience (publishedVersion, cc-by-nc-sa)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Institutes of Health
  • National Institute of Neurological Disorders and Stroke (R01NS042616)
Topics
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Axon Guidance and Neuronal Signaling
  • Life Sciences › Neuroscience › Developmental Neuroscience › Neurogenesis and neuroplasticity mechanisms
Keywords
Reelin signaling, dendritic spine development, hippocampal pyramidal neurons, ApoER2, VLDLR, Dab1, cognitive disorders
MeSH terms
Reelin Protein, Animals, Cells, Cultured, Hippocampus, Nerve Tissue Proteins, Receptors, LDL, Recombinant Proteins, Serine Endopeptidases, Signal Transduction, Cell Adhesion Molecules, Neuronal, Extracellular Matrix Proteins, Pyramidal Cells, Receptors, Lipoprotein, src-Family Kinases, LDL-Receptor Related Proteins, Dendritic Spines, Mice

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