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Intraflagellar transport, cilia, and mammalian Hedgehog signaling: Analysis in mouse embryonic fibroblasts

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Ocbina, Polloneal Jymmiel R., Anderson, Kathryn V.·2008·Developmental Dynamics

Abstract

Genetic studies in the mouse have shown that Intraflagellar Transport (IFT) is essential for mammalian Hedgehog (Hh) signal transduction. In this study, we take advantage of wild type and IFT mutant mouse embryonic fibroblasts (MEFs) to characterize additional aspects of the relationship between IFT and Hh signaling. Exposure to Sonic hedgehog (Shh) ligand or expression of an activated allele of Smo, SmoA1, activates an Hh reporter in wild‐type MEFs, but not in MEFs derived from embryos that lack IFT172 or the Dync2h1 subunit of the retrograde IFT motor. Similarly, decreased activity of either Sufu or PKA, two negative regulators of Hh signal transduction, activates the pathway in wild‐type, but not IFT mutant, MEFs. In contrast to wild‐type MEFs, Smo is constitutively present in the cilia of Dync2h1 mutant MEFs. This finding suggests that IFT‐dependent trafficking of Hh pathway components through the cilium is essential for their function. Developmental Dynamics 237:2030–2038, 2008. © 2008 Wiley‐Liss, Inc.

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Metadata

Authors
Ocbina, P. J. R., & Anderson, K. V.
Venue
Developmental Dynamics
Publisher
Wiley
Published
2008-05-19
Volume
237
Issue
8
Pages
2030-2038
ISSN
  • 1058-8388 (ISSN-L)
  • 1097-0177
OpenAlex
W2136445329
Cited by
192
References
6
FWCI
10.55
Type
journal article
Language
en
Open access
bronze

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CoChat. (2026). Citation check: Intraflagellar transport, cilia, and mammalian Hedgehog signaling: Analysis in mouse embryonic fibroblasts. https://app.cochat.ai/papers/10.1002/dvdy.21551
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Ocbina, P. J. R., & Anderson, K. V. (2008). Intraflagellar transport, cilia, and mammalian Hedgehog signaling: Analysis in mouse embryonic fibroblasts. Developmental Dynamics. https://doi.org/10.1002/dvdy.21551

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