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Dev Dyn. 2009 Dec;238(12):3035-42. doi: 10.1002/dvdy.22130.

Planar cell polarity effector gene Fuzzy regulates cilia formation and Hedgehog signal transduction in mouse.

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1
Department of Biology, Eberly College of Science, The Pennsylvania State University, University Park, Pennsylvania 16802, USA.

Abstract

Precise planar cell polarity (PCP) is critical for the development of multiple organ systems in animals. A group of core-PCP proteins are recognized to play crucial roles in convergent extension and other PCP-related processes in mammals. However, the functions of another group of PCP-regulating proteins, the PCP-effector proteins, are yet to be fully studied. In this study, the generation and characterization of a mouse mutant for the PCP effector gene Fuzzy (Fuz) is reported. Fuz homozygous mutants are embryonically lethal, with multiple defects including neural tube defects, abnormal dorsal/ventral patterning of the spinal cord, and defective anterior/posterior patterning of the limb buds. Fuz mutants also exhibit abnormal Hedgehog (Hh) signaling and inefficient proteolytic processing of Gli3. Finally, a significant decrease in cilia was found in Fuz homozygous mutants. In conclusion, Fuz plays an important role in cilia formation, Hh signal transduction, and embryonic development in mammals.

PMID:
19877275
DOI:
10.1002/dvdy.22130
[Indexed for MEDLINE]
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