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Related Concept Videos

Non-Canonical Wnt Signaling Pathways01:41

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Wnt is a zygotic effect gene that is expressed during very early embryonic development. It regulates various processes in animals starting from early development through the adult stage, such as organogenesis in the embryo and maintenance of neuronal and blood stem cells. Wnt proteins can induce a wide variety of intracellular pathways depending upon the specific abilities of different Wnt ligands to form a complex with shared and cognate receptors in the presence of different co-receptors. The...
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The gene encoding the main signaling molecules of the Wnt signaling pathways (the Wnt proteins) was discovered almost four decades ago by Nüsslein-Volhard and Wieschaus. They identified and originally named the gene "wingless" (wg) after a phenotype discovered during their landmark genetic screen in Drosophila for body pattern defects. At around the same time, another researcher named Harold Varmus found that a murine tumor virus activates the mammalian wg homolog, Int-1, which...
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Multiprotein signaling complexes are formed in a dynamic process involving protein-protein interactions at the cytoplasmic domain of transmembrane receptors or enzymatic and non-enzymatic proteins associated with the receptor. These complexes ensure the activation and propagation of intracellular signals that regulate cell functions.
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Related Experiment Video

Updated: May 7, 2026

Modeling Paracrine Noncanonical Wnt Signaling In Vitro
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Postsynaptic assembly: a role for Wnt signaling.

Eleanna Stamatakou1, Patricia C Salinas

  • 1Department of Cell and Developmental Biology, University College London, London WC1E 6BT, United Kingdom.

Developmental Neurobiology
|October 10, 2013
PubMed
Summary

Wnt proteins are crucial for synapse formation, acting directly on the postsynaptic side to guide development and strengthen connections at central synapses and neuromuscular junctions.

Keywords:
dendritic spinesexcitatory and inhibitory synapseneuromuscular junctionsynaptic plasticity

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Area of Science:

  • Neuroscience
  • Cell Biology
  • Developmental Biology

Background:

  • Synapse formation necessitates coordinated development of presynaptic and postsynaptic structures.
  • Wnt secreted proteins are established synaptogenic factors, historically recognized for presynaptic recruitment.
  • Emerging evidence highlights Wnts' direct roles in postsynaptic development.

Purpose of the Study:

  • To review the function of Wnt proteins in postsynaptic development.
  • To examine Wnt signaling at central synapses and the neuromuscular junction.

Main Methods:

  • Literature review of recent studies on Wnt signaling in synapse formation.
  • Analysis of Wnt's direct effects on postsynaptic development and synaptic strength.

Main Results:

  • Wnts directly influence postsynaptic development at central synapses.
  • Wnts contribute to postsynaptic maturation at the neuromuscular junction.
  • Wnt signaling is critical for establishing synaptic strength via postsynaptic mechanisms.

Conclusions:

  • Wnts play a significant, direct role in postsynaptic development.
  • Understanding Wnt's postsynaptic functions is key to comprehending synapse formation and function.
  • This review consolidates current knowledge on Wnts in postsynaptic development across different synapse types.