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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

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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 results in tumor...

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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...

Non-Canonical Wnt Signaling Pathways

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Related Experiment Video

Updated: Jun 1, 2026

Modeling Paracrine Noncanonical Wnt Signaling In Vitro

Modeling Paracrine Noncanonical Wnt Signaling In Vitro

Published on: December 10, 2021

Wnt signaling through T-cell factor phosphorylation.

Sergei Y Sokol¹

¹Department of Developmental and Regenerative Biology, Mount Sinai School of Medicine, New York, NY 10029, USA. sergei.sokol@mssm.edu

|May 25, 2011

Summary

This summary is machine-generated.

Wnt signaling stabilizes beta-catenin, converting T-cell factors (TCFs) from repressors to activators. This review explores how post-translational modifications, like phosphorylation, context-dependently regulate TCF function in embryonic development.

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Last Updated: Jun 1, 2026

Modeling Paracrine Noncanonical Wnt Signaling In Vitro

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Published on: December 10, 2021

The Soft Agar Colony Formation Assay

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Published on: October 27, 2014

Area of Science:

Developmental Biology
Molecular Biology
Cell Signaling

Background:

Embryonic signaling pathways mediate gene expression changes.
Wnt signaling stabilizes beta-catenin, a key transcription co-activator.
T-cell factors (TCFs) transition from transcriptional repressors to activators upon Wnt pathway activation.

Purpose of the Study:

To review recent advances in understanding the post-translational regulation of T-cell factors (TCFs).
To elucidate the context-dependent mechanisms by which Wnt signaling modulates TCF function.
To clarify the physiological significance of TCF phosphorylation in Wnt-dependent transcription.

Main Methods:

Literature review of recent studies on TCF regulation.
Analysis of research on Wnt signaling pathways and beta-catenin stabilization.
Examination of studies investigating TCF phosphorylation and its functional outcomes.

Main Results:

Wnt signaling triggers beta-catenin stabilization, which interacts with TCFs.
TCF conversion from repressor to activator is a critical step in Wnt signaling.
The role of TCF phosphorylation in regulating Wnt target gene transcription is context-dependent and not fully understood.

Conclusions:

Post-translational modifications, particularly phosphorylation, play a crucial role in context-dependent TCF regulation.
Further research is needed to fully elucidate the mechanisms and physiological relevance of TCF post-translational modifications in Wnt signaling.
Understanding TCF regulation is vital for comprehending embryonic development and Wnt pathway-associated diseases.