GSK3: a multifaceted kinase in Wnt signaling

Related Experiment Video

Updated: Jun 19, 2026

Light-mediated Reversible Modulation of the Mitogen-activated Protein Kinase Pathway during Cell Differentiation and Xenopus Embryonic Development
09:32

Light-mediated Reversible Modulation of the Mitogen-activated Protein Kinase Pathway during Cell Differentiation and Xenopus Embryonic Development

Published on: June 15, 2017

Dianqing Wu1, Weijun Pan

  • 1Vascular Biology and Therapeutics Program and Department of Pharmacology, Yale University School of Medicine, New Haven, CT 065202, USA. dan.wu@yale.edu

Trends in Biochemical Sciences
|November 4, 2009
PubMed

Insights

Glycogen synthase kinase 3 (GSK3) is crucial in many cell signaling pathways. This review explores GSK3

Area of Science:

  • Cellular signaling pathways
  • Molecular biology
  • Biochemistry

Background:

  • Glycogen synthase kinase 3 (GSK3) acts as a central mediator in diverse signaling pathways.
  • These pathways include those activated by Wnts, hedgehog, growth factors, cytokines, and G protein-coupled ligands.
  • The precise mechanisms of GSK3's role in Wnt-beta-catenin signaling are not fully understood.

Purpose of the Study:

  • To summarize recent findings on GSK3's involvement in Wnt-beta-catenin signaling.
  • To provide explanations, hypotheses, and models for observed GSK3 functions.
  • To clarify the multifaceted roles of GSK3 in cellular signaling.

Main Methods:

  • Literature review of recent research on GSK3.
  • Analysis of studies investigating GSK3's interaction with Wnt signaling components.
  • Synthesis of existing data to propose new models.

Main Results:

  • GSK3 is implicated in Wnt receptor phosphorylation.
  • GSK3's inhibition of beta-catenin phosphorylation is a key event in Wnt signaling.
  • GSK3 exhibits multifaceted roles beyond simple beta-catenin phosphorylation.

Conclusions:

  • Recent findings highlight GSK3's complex involvement in Wnt-beta-catenin signaling.
  • Further research is needed to fully elucidate GSK3's mechanisms.
  • GSK3's diverse roles necessitate updated models for Wnt pathway regulation.

More Related Videos

Modeling Paracrine Noncanonical Wnt Signaling In Vitro11:14

Modeling Paracrine Noncanonical Wnt Signaling In Vitro

Published on: December 10, 2021

Related Concept Videos

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...
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...
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...
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...
MAPK Signaling Cascades01:07

MAPK Signaling Cascades

Mitogen-activated protein kinase, or MAPK pathway, activates three sequential kinases to regulate cellular responses such as proliferation, differentiation, survival, and apoptosis. The canonical MAPK pathway starts with a mitogen or growth factor binding to an RTK. The activated RTKs stimulate Ras, which recruits Raf or MAP3 Kinase (MAPKKK), the first kinase of the MAPK signaling cascade. Raf further phosphorylates and activates MEK or MAP2 Kinases (MAPKK), which in turn phosphorylates MAP...
Amplifying Signals via Enzymatic Cascade01:22

Amplifying Signals via Enzymatic Cascade

When a ligand binds to a cell-surface receptor, the receptor's intracellular domain changes shape, which may either activate its enzyme function or allow its binding to other molecules. The initial signal is amplified by most signal transduction pathways. This means that a single ligand molecule can activate multiple molecules of a downstream target. Proteins that relay a signal are most commonly phosphorylated at one or more sites, activating or inactivating the protein. Kinases catalyze the...