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Canonical Wnt Signaling Pathway

Canonical Wnt Signaling Pathway

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 results in tumor...

Canonical Wnt Signaling Pathway

Canonical Wnt Signaling Pathway

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 results in tumor...

Non-Canonical Wnt Signaling Pathways

Non-Canonical Wnt Signaling Pathways

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...

Non-Canonical Wnt Signaling Pathways

Non-Canonical Wnt Signaling Pathways

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...

Notch Signaling Pathway

Notch Signaling Pathway

The Notch signaling pathway is a major intracellular signaling pathway that is highly conserved over a broad spectrum of metazoan species. It stands unique from other intracellular signaling mechanisms in animals because notch protein itself acts as the receptor as well as the primary signaling molecule.
The Notch gene came into the limelight in 1914 after the discovery that its mutation in Drosophila melanogaster leads to a serrated (or "notched") wing margin phenotype. It was not until 1985...

Notch Signaling Pathway

Notch Signaling Pathway

The Notch signaling pathway is a major intracellular signaling pathway that is highly conserved over a broad spectrum of metazoan species. It stands unique from other intracellular signaling mechanisms in animals because notch protein itself acts as the receptor as well as the primary signaling molecule.
The Notch gene came into the limelight in 1914 after the discovery that its mutation in Drosophila melanogaster leads to a serrated (or "notched") wing margin phenotype. It was not until 1985...

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Related Experiment Video

Updated: May 23, 2026

Modeling Paracrine Noncanonical Wnt Signaling In Vitro

Modeling Paracrine Noncanonical Wnt Signaling In Vitro

Published on: December 10, 2021

Wnt signaling in development and disease.

¹Genetic Disease Research Branch, National Human Genome Research Institute, 49 Convent Drive, MSC 4472, Bethesda, MD, 20892, USA. yingzi@mail.nih.gov.

Cell & Bioscience

|April 24, 2012

Summary

Wnt morphogens provide quantitative and directional cues for embryonic development. Wnt5a establishes planar cell polarity (PCP), integrating these signals and offering insights into developmental diseases.

Area of Science:

Developmental Biology
Cell Signaling
Molecular Biology

Background:

Morphogen-mediated cell signaling coordinates organismal growth and patterning.
Wnt signaling is crucial for embryonic development and tissue homeostasis.
Dysregulation of Wnt pathways is linked to diseases like cancer.

Purpose of the Study:

To review Wnt signaling pathways in skeletal system development.
To highlight recent findings on Wnt5a's role in establishing planar cell polarity (PCP).
To explore Wnt's integration of quantitative and directional information in development.

Main Methods:

Review of existing research on Wnt signaling.
Focus on studies examining Wnt5a in vertebrate development.

More Related Videos

Using Confocal Analysis of Xenopus laevis to Investigate Modulators of Wnt and Shh Morphogen Gradients

Using Confocal Analysis of Xenopus laevis to Investigate Modulators of Wnt and Shh Morphogen Gradients

Published on: December 14, 2015

Related Experiment Videos

Last Updated: May 23, 2026

Modeling Paracrine Noncanonical Wnt Signaling In Vitro

Modeling Paracrine Noncanonical Wnt Signaling In Vitro

Published on: December 10, 2021

Using Confocal Analysis of Xenopus laevis to Investigate Modulators of Wnt and Shh Morphogen Gradients

Using Confocal Analysis of Xenopus laevis to Investigate Modulators of Wnt and Shh Morphogen Gradients

Published on: December 14, 2015

Analysis of Wnt/PCP pathway mutations and associated diseases.

Main Results:

Wnt morphogens provide both quantitative and directional cellular information.
Wnt5a acts as a global cue for establishing planar cell polarity (PCP) in vertebrates.
Wnt signaling integrates quantitative and directional information for developmental regulation.

Conclusions:

Wnt signaling is a key regulator of embryonic development by integrating diverse information.
Wnt5a's role in PCP is critical for normal development.
Mutations in the Wnt/PCP pathway contribute to developmental disorders like Robinow syndrome, BDB1, and spina bifida.