Language

English

Publication Date

10-1-2024

Journal

Development

DOI

10.1242/dev.202705

PMID

39369306

PMCID

PMC11463954

PubMedCentral® Posted Date

10-4-2024

PubMedCentral® Full Text Version

Post-print

Abstract

Sonic hedgehog (Shh) signaling regulates embryonic morphogenesis utilizing the primary cilium, the cell's antenna, which acts as a signaling hub. Fuz, an effector of planar cell polarity signaling, regulates Shh signaling by facilitating cilia formation, and the G protein-coupled receptor 161 (Gpr161) is a negative regulator of Shh signaling. The range of phenotypic malformations observed in mice bearing mutations in either of the genes encoding these proteins is similar; however, their functional relationship has not been previously explored. This study identified the genetic and biochemical linkage between Fuz and Gpr161 in mouse neural tube development. Fuz was found to be genetically epistatic to Gpr161 with respect to regulation of Shh signaling in mouse neural tube development. The Fuz protein biochemically interacts with Gpr161, and Fuz regulates Gpr161-mediated ciliary localization, a process that might utilize β-arrestin 2. Our study characterizes a previously unappreciated Gpr161-Fuz axis that regulates Shh signaling during mouse neural tube development.

Keywords

Animals, Hedgehog Proteins, Receptors, G-Protein-Coupled, Neural Tube, Signal Transduction, Mice, Cilia, Gene Expression Regulation, Developmental, beta-Arrestin 2, Epistasis, Genetic, Female, Cytoskeletal Proteins, Intracellular Signaling Peptides and Proteins, Sonic hedgehog signaling, Fuz, Gpr161, Primary cilia, Mouse neural tube development

Published Open-Access

yes

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