Related Experiment Video
Updated: May 9, 2026
11:14
Modeling Paracrine Noncanonical Wnt Signaling In Vitro
Published on: December 10, 2021
Multiple functions of the noncanonical Wnt pathway
Eva Gómez-Orte1, Beatriz Sáenz-Narciso, Sergio Moreno
1Center for Biomedical Research of La Rioja (CIBIR), C/Piqueras 98, 26006 Logroño, Spain.
Trends in Genetics : TIG
|July 13, 2013
Summary
Wnt signaling pathways in C. elegans regulate cell polarization and development by controlling cytoskeletal rearrangements. New research reveals nontranscriptional Wnt outputs impacting Ras related GTPase activity.
Area of Science:
- Molecular Biology
- Developmental Biology
- Cell Biology
Background:
- WNT proteins are crucial signaling molecules with diverse biological roles.
- WNT signaling pathways are implicated in various developmental processes.
- Understanding WNT pathways in model organisms like C. elegans provides fundamental insights.
Purpose of the Study:
- To review recent advances in WNT-dependent signaling pathways in Caenorhabditis elegans.
- To highlight the link between WNT signals and cytoskeletal rearrangements during development.
- To discuss both transcriptional and novel nontranscriptional WNT outputs.
Main Methods:
- Literature review of WNT signaling research in C. elegans.
- Analysis of studies focusing on WNT's role in mitotic spindle orientation, cell migration, and apoptotic corpse engulfment.
- Examination of research on canonical and noncanonical WNT pathways.
- Inclusion of recent findings on WNT-regulated nontranscriptional outputs.
Main Results:
- WNT signaling orchestrates cytoskeletal dynamics essential for key developmental events.
- Canonical and noncanonical WNT pathways have well-defined transcriptional targets.
- Emerging evidence points to WNT pathways regulating nontranscriptional outputs, including RAC GTPase activity.
- These pathways are critical for cell polarization and developmental processes in C. elegans.
Conclusions:
- WNT signaling is a master regulator of cellular development and polarization.
- The understanding of WNT pathway complexity, including nontranscriptional roles, is expanding.
- C. elegans serves as a valuable model for dissecting WNT signaling mechanisms.
Related Concept Videos
01:41Non-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...
01:41Non-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...
02:54Canonical 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...
02:54Canonical 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...
03:14Notch 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...
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...
03:14Notch 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...
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...