PUBLICATION

Wnt/β-Catenin Signaling Regulates Yap/Taz Activity during Embryonic Development in Zebrafish

Authors
Astone, M., Tesoriero, C., Schiavone, M., Facchinello, N., Tiso, N., Argenton, F., Vettori, A.
ID
ZDB-PUB-240929-21
Date
2024
Source
International Journal of Molecular Sciences   25(18): (Journal)
Registered Authors
Argenton, Francesco, Astone, Matteo, Facchinello, Nicola, Schiavone, Marco, Tesoriero, Chiara, Tiso, Natascia, Vettori, Andrea
Keywords
Hippo, Wnt/β-catenin, Yap/Taz, crosstalk, embryonic development, zebrafish
MeSH Terms
  • Animals
  • beta Catenin/genetics
  • beta Catenin/metabolism
  • Zebrafish*/embryology
  • Zebrafish*/genetics
  • Zebrafish*/metabolism
  • Wnt Signaling Pathway*
  • Transcriptional Coactivator with PDZ-Binding Motif Proteins/metabolism
  • Gene Expression Regulation, Developmental*
  • Adaptor Proteins, Signal Transducing/genetics
  • Adaptor Proteins, Signal Transducing/metabolism
  • Embryonic Development*/genetics
  • Zebrafish Proteins*/genetics
  • Zebrafish Proteins*/metabolism
  • YAP-Signaling Proteins*/metabolism
PubMed
39337493 Full text @ Int. J. Mol. Sci.
Abstract
Hippo-YAP/TAZ and Wnt/β-catenin signaling pathways, by controlling proliferation, migration, cell fate, stemness, and apoptosis, are crucial regulators of development and tissue homeostasis. We employed zebrafish embryos as a model system to elucidate in living reporter organisms the crosstalk between the two signaling pathways. Co-expression analysis between the Wnt/β-catenin Tg(7xTCF-Xla.Siam:GFP)ia4 and the Hippo-Yap/Taz Tg(Hsa.CTGF:nlsmCherry)ia49 zebrafish reporter lines revealed shared spatiotemporal expression profiles. These patterns were particularly evident in key developmental regions such as the midbrain-hindbrain boundary (MHB), epidermis, muscles, neural tube, notochord, floorplate, and otic vesicle. To investigate the relationship between the Wnt/β-catenin pathway and Hippo-Yap/Taz signaling in vivo, we conducted a series of experiments employing both pharmacological and genetic strategies. Modulation of the Wnt/β-catenin pathway with IWR-1, XAV939, or BIO resulted in a significant regulation of the Yap/Taz reporter signal, highlighting a clear correlation between β-catenin and Yap/Taz activities. Furthermore, genetic perturbation of the Wnt/β-catenin pathway, by APC inhibition or DKK1 upregulation, elicited evident and robust alteration of Yap/Taz activity. These findings revealed the intricate regulatory mechanisms underlying the crosstalk between the Wnt/β-catenin and Hippo-Yap/Taz signaling, shedding light on their roles in orchestrating developmental processes in vivo.
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