The planar cell polarity protein Vangl2 is involved in postsynaptic compartmentalization

Tadahiro Nagaoka, Masashi Kishi

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

The excitatory postsynaptic region of the vertebrate hippocampus is usually compartmentalized into the postsynaptic density (PSD) and N-cadherin-rich domain, which is important for synaptic adhesion. However, the molecular mechanisms underlying the compartment formation are unknown. In the present report, we show that the planar cell polarity (PCP) protein Van Gogh-like 2 (Vangl2) plays a role in this regionalization. In cultured rat hippocampal neurons that were subjected to Vangl2 expression silencing, the formed clusters of PSD-95, one of the major scaffolding proteins in PSD, tended to overlap with those of N-cadherin. Further, in the dendrites of these neurons, the immunofluorescence of PSD-95 was to some extent diffused, without a significant change in the total signal. Because Vangl2 physically interacts with both PSD-95 and N-cadherin in vivo, these results suggest that a PCP-related direct molecular mechanism underlies the horizontal polarization of the postsynaptic regions.

Original languageEnglish
Pages (from-to)251-255
Number of pages5
JournalNeuroscience Letters
Volume612
DOIs
Publication statusPublished - 26-01-2016
Externally publishedYes

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Post-Synaptic Density
Cell Polarity
Cadherins
Proteins
Neurons
Dendrites
Fluorescent Antibody Technique
Vertebrates
Hippocampus

All Science Journal Classification (ASJC) codes

  • Neuroscience(all)

Cite this

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abstract = "The excitatory postsynaptic region of the vertebrate hippocampus is usually compartmentalized into the postsynaptic density (PSD) and N-cadherin-rich domain, which is important for synaptic adhesion. However, the molecular mechanisms underlying the compartment formation are unknown. In the present report, we show that the planar cell polarity (PCP) protein Van Gogh-like 2 (Vangl2) plays a role in this regionalization. In cultured rat hippocampal neurons that were subjected to Vangl2 expression silencing, the formed clusters of PSD-95, one of the major scaffolding proteins in PSD, tended to overlap with those of N-cadherin. Further, in the dendrites of these neurons, the immunofluorescence of PSD-95 was to some extent diffused, without a significant change in the total signal. Because Vangl2 physically interacts with both PSD-95 and N-cadherin in vivo, these results suggest that a PCP-related direct molecular mechanism underlies the horizontal polarization of the postsynaptic regions.",
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The planar cell polarity protein Vangl2 is involved in postsynaptic compartmentalization. / Nagaoka, Tadahiro; Kishi, Masashi.

In: Neuroscience Letters, Vol. 612, 26.01.2016, p. 251-255.

Research output: Contribution to journalArticle

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