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Published on: December 14, 2015
The WNT signaling pathway from ligand secretion to gene transcription: molecular mechanisms and pharmacological
Hoeke A Baarsma1, Melanie Königshoff, Reinoud Gosens
1Department of Molecular Pharmacology, GRIAC research institute, University of Groningen, Groningen, The Netherlands.
Abstract:
Wingless/integrase-1 (WNT) signaling is a key pathway regulating various aspects of embryonic development; however it also underlies several pathological conditions in man, including various cancers and fibroproliferative diseases in several organs. Investigating the molecular processes involved in (canonical) WNT signaling will open new avenues for generating new therapeutics to specifically target diseases in which WNT signaling is aberrantly regulated. Here we describe the complexity of WNT signal transduction starting from the processes involved in WNT ligand biogenesis and secretion by WNT producing cells followed by a comprehensive overview of the molecular signaling events ultimately resulting in enhanced transcription of specific genes in WNT receiving cells. Finally, the possible targets for therapeutic intervention and the available pharmacological inhibitors for this complex signaling pathway are discussed.
Insights
Wingless/integrase-1 (WNT) signaling regulates development and disease. Understanding WNT pathway molecular processes offers new therapeutic targets for cancers and fibroproliferative diseases.
Area of Science:
- Molecular Biology
- Developmental Biology
- Cell Signaling
Background:
- Wingless/integrase-1 (WNT) signaling is crucial for embryonic development.
- Aberrant WNT signaling is implicated in human pathologies, including cancers and fibroproliferative diseases.
Purpose of the Study:
- To elucidate the molecular mechanisms of canonical WNT signal transduction.
- To identify potential therapeutic targets and pharmacological inhibitors for WNT pathway dysregulation.
Main Methods:
- Review of WNT ligand biogenesis and secretion.
- Comprehensive overview of intracellular WNT signaling events.
- Analysis of WNT-mediated gene transcription.
Main Results:
- Detailed description of WNT pathway activation from ligand secretion to target gene transcription.
- Identification of key molecular players in WNT signal transduction.
Conclusions:
- Understanding WNT signaling complexity is vital for developing targeted therapies.
- Pharmacological targeting of the WNT pathway holds promise for treating WNT-driven diseases.
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