Cited by 209Neuroscience and Neuropharmacology ResearchProteoglycans and glycosaminoglycans researchNeurogenesis and neuroplasticity mechanisms

Cell surface heparan sulfate proteoglycan syndecan-2 induces the maturation of dendritic spines in rat hippocampal neurons.

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Ethell, Iryna M., Yamaguchi, Yu·1999·The Journal of Cell Biology

Abstract

Dendritic spines are small protrusions that receive synapses, and changes in spine morphology are thought to be the structural basis for learning and memory. We demonstrate that the cell surface heparan sulfate proteoglycan syndecan-2 plays a critical role in spine development. Syndecan-2 is concentrated at the synapses, specifically on the dendritic spines of cultured hippocampal neurons, and its accumulation occurs concomitant with the morphological maturation of spines from long thin protrusions to stubby and headed shapes. Early introduction of syndecan-2 cDNA into immature hippocampal neurons, by transient transfection, accelerates spine formation from dendritic protrusions. Deletion of the COOH-terminal EFYA motif of syndecan-2, the binding site for PDZ domain proteins, abrogates the spine-promoting activity of syndecan-2. Syndecan-2 clustering on dendritic protrusions does not require the PDZ domain-binding motif, but another portion of the cytoplasmic domain which includes a protein kinase C phosphorylation site. Our results indicate that syndecan-2 plays a direct role in the development of postsynaptic specialization through its interactions with PDZ domain proteins.

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  1. Couchman JR Woods A Syndecans, signaling and cell adhesion J Cell Biochem 1996 61 578 584 8806081
  2. Serafini T An old friend in a new home: cadherins at the synapse Trends Neurosci 1997 20 322 323 9246718
  3. Spacek J Harris KM Three-dimensional organization of cell adhesion junctions at synapses and dendritic spines in area CA1 of the rat hippocampus J Comp Neurol 1998 393 58 68 9520101

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Authors
Ethell, I. M., & Yamaguchi, Y.
Affiliations
Sanford Burnham Prebys Medical Discovery Institute (US)
Corresponding author
Yamaguchi, Yu
Venue
The Journal of Cell Biology
Published
1999-02-08
Volume
144
Issue
3
Pages
575-586
ISSN
  • 0021-9525 (ISSN-L)
  • 1540-8140
OpenAlex
W2139220860
Cited by
209
References
60
Citations by year
2026: 1 · 2024: 1 · 2023: 4 · 2022: 3 · 2021: 7 · 2020: 4 · 2019: 4 · 2018: 4 · 2016: 4 · 2015: 8 · 2014: 12 · 2013: 7 · 2012: 7
FWCI
5.78
Type
journal article
Language
en
Open access
Licence
cc-by-nc-sa
Locations
  • The Journal of Cell Biology (publishedVersion)
  • PubMed Central (publishedVersion, cc-by-nc-sa)
  • PubMed (publishedVersion)
Funders
  • National Institutes of Health (5r01ns033117-04)
  • National Institute of Neurological Disorders and Stroke (NS33117)
  • Eunice Kennedy Shriver National Institute of Child Health and Human Development (HD 25938, P01HD025938)
Topics
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › Proteoglycans and glycosaminoglycans research
  • Life Sciences › Neuroscience › Developmental Neuroscience › Neurogenesis and neuroplasticity mechanisms
Keywords
syndecan-2, heparan sulfate proteoglycans, dendritic spine maturation, hippocampal neurons, synaptic development, PDZ domain proteins, protein kinase C phosphorylation, postsynaptic specialization, dendritic protrusions, learning and memory
MeSH terms
Amino Acid Sequence, Animals, Base Sequence, Dendrites, Heparitin Sulfate, Heparan Sulfate, Hippocampus, Immunohistochemistry, Membrane Glycoproteins, Neurons, Proteoglycans, Transfection, DNA Primers, DNA, Complementary, Rats, Syndecan-2

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