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Related Concept Videos

Canonical Wnt Signaling Pathway02:54

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 Pathways01:41

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...
TGF - β Signaling Pathway01:16

TGF - β Signaling Pathway

The TGF-β signaling pathway regulates cell growth, differentiation, adhesion, motility, and development. TGF-β ligands that induce TGF-β signaling are synthesized in their latent form. Several proteases or cell surface receptors such as integrins act upon the latent form, releasing the active ligand. There are three types of mammalian TGF-βs: (TGF-β1, TGF-β2, and TGF-β3) that bind as homodimers or heterodimers to TGF-β receptors. The TGF-β receptors are of three kinds RI, RII, and RIII. The RI...
Canonical Wnt Signaling Pathway02:54

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 Pathways01:41

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...
Catenins01:23

Catenins

Catenins are characterized by multiple binding domains and dynamic structures that allow them to function as linker proteins in cell junction complexes. All catenins, except α-catenin, contain a characteristic protein sequence called the armadillo repeat and are therefore also called armadillo proteins.
Catenins in Cell Junctions
Catenins bind to cell adhesion molecules such as cadherins and link them to different cytoskeletal proteins depending on the type of cell junction. At the adherens...

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Related Experiment Video

Updated: Jul 18, 2026

The Soft Agar Colony Formation Assay
08:01

The Soft Agar Colony Formation Assay

Published on: October 27, 2014

Wnt pathway activation: new relations and locations.

Amy Bejsovec1

  • 1Department of Biology, Duke University, Durham, NC 27708, USA. bejsovec@duke.edu

Cell
|January 18, 2005
PubMed
Summary

Recent Wnt signaling research identifies new proteins and interactions. Understanding receptor location clarifies canonical and noncanonical pathway differences.

Area of Science:

  • Molecular Biology
  • Cell Signaling
  • Biochemistry

Background:

  • The Wnt signaling pathway is crucial in development and disease.
  • Its canonical and noncanonical activities are not fully understood.
  • Key molecular players and their interactions require further elucidation.

Purpose of the Study:

  • To highlight recent discoveries in Wnt signaling.
  • To explore novel components and connections within the pathway.
  • To investigate the role of receptor localization in pathway divergence.

Main Methods:

  • Literature review of recent Wnt signaling research.
  • Analysis of newly identified Wnt pathway components.
  • Comparative study of receptor subcellular localization.

More Related Videos

Using Confocal Analysis of Xenopus laevis to Investigate Modulators of Wnt and Shh Morphogen Gradients
08:10

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

Published on: December 14, 2015

Modeling Paracrine Noncanonical Wnt Signaling In Vitro
11:14

Modeling Paracrine Noncanonical Wnt Signaling In Vitro

Published on: December 10, 2021

Related Experiment Videos

Last Updated: Jul 18, 2026

The Soft Agar Colony Formation Assay
08:01

The Soft Agar Colony Formation Assay

Published on: October 27, 2014

Using Confocal Analysis of Xenopus laevis to Investigate Modulators of Wnt and Shh Morphogen Gradients
08:10

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

Published on: December 14, 2015

Modeling Paracrine Noncanonical Wnt Signaling In Vitro
11:14

Modeling Paracrine Noncanonical Wnt Signaling In Vitro

Published on: December 10, 2021

Main Results:

  • Identification of a G protein and an atypical receptor tyrosine kinase as new Wnt signaling components.
  • Discovery of novel interactions between known Wnt pathway elements.
  • Correlation between distinct receptor subcellular localizations and canonical/noncanonical Wnt activity.

Conclusions:

  • Recent advances have expanded the known Wnt signaling network.
  • Receptor localization is a key factor differentiating Wnt pathway activities.
  • Further research into these new components and mechanisms is warranted.