Cited by 518Wnt/β-catenin signaling in development and cancerDevelopmental Biology and Gene RegulationRenal and related cancers

Frzb, a Secreted Protein Expressed in the Spemann Organizer, Binds and Inhibits Wnt-8

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Wang, Shouwen, Krinks, Marie, Lin, Keming, Luyten, Frank P, Moos, Malcolm·1997·Cell

Abstract

We isolated a Xenopus homolog of Frzb, a newly described protein containing an amino-terminal Frizzled motif. It dorsalized Xenopus embryos and was expressed in the Spemann organizer during early gastrulation. Unlike Frizzled proteins, endogenous Frzb was soluble. Frzb was secretable and could act across cell boundaries. In several functional assays, Frzb antagonized Xwnt-8, a proposed ventralizing factor with an expression pattern complementary to that of Frzb. Furthermore, Frzb blocked induction of MyoD, an action reported recently for a dominant-negative Xwnt-8. Frzb coimmunoprecipitated with Wnt proteins, providing direct biochemical evidence for Frzb-Wnt interactions. These observations implicate Frzb in axial patterning and support the concept that Frzb binds and inactivates Xwnt-8 during gastrulation, preventing inappropriate ventral signaling in developing dorsal tissues.

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  • A number of secreted proteins that bind to Wnts and prevent their interaction with either Fz or LRP5/6 to antagonize Wnt signaling have been identified, including Dickkopf (Dkk) proteins, Wnt-inhibitor protein (WIF), soluble Frizzled-related proteins (SFRP), Cerebrus, Frzb and Wise.

    “In the extra-cellular matrix, a number of secreted proteins that bind to Wnts and prevent their interaction with either Fz or LRP5/6 to antagonize Wnt signaling have been identified. These include Dickkopf (Dkk) proteins,16 Wnt-inhibitor protein (WIF),17 soluble Frizzled-related proteins (SFRP),18 Cerebrus,19 Frzb20 and the context dependent Wnt inhibitor Wise.21”

    From Wnt signal transduction pathways (2008) · cites this paper as [20]

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Authors
Wang, S., Krinks, M., Lin, K., Luyten, F. P., & Moos, M.
Affiliations
  • United States Food and Drug Administration (US)
  • Center for Biologics Evaluation and Research (US)
  • National Institutes of Health (US)
Corresponding author
Moos, Malcolm
Venue
Cell
Publisher
Elsevier BV
Published
1997-03
Volume
88
Issue
6
Pages
757-766
ISSN
0092-8674 (ISSN-L)
OpenAlex
W1988350691
Cited by
518
References
70
Citations by year
2026: 3 · 2025: 11 · 2024: 8 · 2023: 9 · 2022: 11 · 2021: 6 · 2020: 12 · 2019: 3 · 2018: 13 · 2017: 17 · 2016: 6 · 2015: 12 · 2014: 15 · 2013: 9 · 2012: 14
FWCI
17.08
Type
journal article
Language
en
Open access
Locations
  • Cell (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • George Washington University
  • National Institutes of Health
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Wnt/β-catenin signaling in development and cancer
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Developmental Biology and Gene Regulation
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Renal and related cancers
Keywords
FRZB, Spemann organizer, dorsalization, ventralization, gastrulation, axial patterning, MyoD, Wnt signaling inhibition, secreted proteins, Xenopus embryo
MeSH terms
Frizzled-Related Proteins, Animals, Biological Transport, Cell Communication, Dogs, Embryonic Induction, Female, Glycoproteins, Male, Mesoderm, Microsomes, Protein Binding, Proteins, Rabbits, RNA, Messenger, Solubility, Transcription, Genetic, Xenopus, Zygote, MyoD Protein, Gene Expression Regulation, Developmental, COS Cells, Zebrafish Proteins, Intracellular Signaling Peptides and Proteins, Wnt Proteins

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