Wnt/β-Catenin Signaling Regulates Yap/Taz Activity during Embryonic Development in Zebrafish
Anno:
2024
Tipologia prodotto:
Articolo in Rivista
Tipologia ANVUR:
Articolo su rivista
Lingua:
Inglese
Formato:
Elettronico
Referee:
Sì
Nome rivista:
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
ISSN Rivista:
1422-0067
N° Volume:
25
Numero o Fascicolo:
18
Intervallo pagine:
1-20
Parole chiave:
Wnt/beta-catenin; Yap/Taz; Hippo; zebrafish; crosstalk; embryonic development
Breve descrizione dei contenuti:
Hippo-YAP/TAZ and Wnt/beta-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/beta-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/beta-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/beta-catenin pathway with IWR-1, XAV939, or BIO resulted in a significant regulation of the Yap/Taz reporter signal, highlighting a clear correlation between beta-catenin and Yap/Taz activities. Furthermore, genetic perturbation of the Wnt/beta-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/beta-catenin and Hippo-Yap/Taz signaling, shedding light on their roles in orchestrating developmental processes in vivo.