Secreted Frizzled-related Protein 2 (sFRP2) Redirects Non-canonical Wnt Signaling from Fz7 to Ror2 During Vertebrate Gastrulation
Overview
Authors
Affiliations
Convergent extension movements during vertebrate gastrulation require a balanced activity of non-canonical Wnt signaling pathways, but the factors regulating this interplay on the molecular level are poorly characterized. Here we show that sFRP2, a member of the secreted frizzled-related protein (sFRP) family, is required for morphogenesis and papc expression during Xenopus gastrulation. We further provide evidence that sFRP2 redirects non-canonical Wnt signaling from Frizzled 7 (Fz7) to the receptor tyrosine kinase-like orphan receptor 2 (Ror2). During this process, sFRP2 promotes Ror2 signal transduction by stabilizing Wnt5a-Ror2 complexes at the membrane, whereas it inhibits Fz7 signaling, probably by blocking Fz7 receptor endocytosis. The cysteine-rich domain of sFRP2 is sufficient for Ror2 activation, and related sFRPs can substitute for this function. Notably, direct interaction of the two receptors via their cysteine-rich domains also promotes Ror2-mediated papc expression but inhibits Fz7 signaling. We propose that sFRPs can act as a molecular switch, channeling the signal input for different non-canonical Wnt pathways during vertebrate gastrulation.
Secreted Frizzled-Related Protein 1a regulates hematopoietic development in a dose-dependent manner.
Ide A, Carpenter K, Elaswad M, Opria K, Marcellin K, Gilliland C bioRxiv. 2025; .
PMID: 39829913 PMC: 11741364. DOI: 10.1101/2025.01.10.632371.
Cohen M, Brumwell A, Ho T, Garakani K, Montas G, Leong D J Clin Invest. 2024; 134(18).
PMID: 38980870 PMC: 11405054. DOI: 10.1172/JCI174598.
Role of the Ror family receptors in Wnt5a signaling.
Kamizaki K, Minami Y, Nishita M In Vitro Cell Dev Biol Anim. 2024; 60(5):489-501.
PMID: 38587578 DOI: 10.1007/s11626-024-00885-4.
Regulatory changes associated with the head to trunk developmental transition.
Duarte P, Correia R, Novoa A, Mallo M BMC Biol. 2023; 21(1):170.
PMID: 37553620 PMC: 10408190. DOI: 10.1186/s12915-023-01675-2.
Predicting Modifiers of Genotype-Phenotype Correlations in Craniofacial Development.
Kar R, Eberhart J Int J Mol Sci. 2023; 24(2).
PMID: 36674738 PMC: 9864425. DOI: 10.3390/ijms24021222.