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ZIRC
ZFIN ID: ZDB-PUB-130903-45
Differential roles for 3-OSTs in the regulation of cilia length and motility
Neugebauer, J.M., Cadwallader, A.B., Amack, J.D., Bisgrove, B.W., and Yost, H.J.
Date: 2013
Source: Development (Cambridge, England) 140(18): 3892-3902 (Journal)
Registered Authors: Amack, Jeffrey, Bisgrove, Brent, Cadwallader, Adam, Neugebauer, Judith, Yost, H. Joseph
Keywords: heparan sulfate proteoglycans, O-Sulfotransferase, OST, 3-OST, HSPG, fibroblast growth factors, FGF, cilia, fluid flow, left-right development, heart asymmetry, gut asymmetry, zebrafish, glycocode
MeSH Terms:
  • Animal Structures/drug effects
  • Animal Structures/metabolism
  • Animals
  • Body Patterning/drug effects
  • Cilia/drug effects
  • Cilia/enzymology*
  • Cilia/ultrastructure
  • Dyneins/metabolism
  • Embryo, Nonmammalian/metabolism
  • Embryo, Nonmammalian/ultrastructure
  • Fibroblast Growth Factors/metabolism
  • Kinesin/metabolism
  • Models, Biological
  • Morpholinos/pharmacology
  • Movement/drug effects
  • Signal Transduction/drug effects
  • Sulfotransferases/metabolism*
  • Transcription Factors/metabolism
  • Zebrafish/embryology
  • Zebrafish/metabolism*
  • Zebrafish Proteins/metabolism*
PubMed: 23946439 Full text @ Development
FIGURES
ABSTRACT

As cells integrate molecular signals from their environment, cell surface receptors require modified proteoglycans for the robust activation of signaling pathways. Heparan sulfate proteoglycans (HSPGs) have long unbranched chains of repetitive disaccharide units that can be sulfated at specific positions by heparan sulfate O-sulfotransferase (OST) families. Here, we show that two members of the 3-OST family are required in distinct signaling pathways to control left-right (LR) patterning through control of Kupffer’s vesicle (KV) cilia length and motility. 3-OST-5 functions in the fibroblast growth factor pathway to control cilia length via the ciliogenic transcription factors FoxJ1a and Rfx2. By contrast, a second 3-OST family member, 3-OST-6, does not regulate cilia length, but regulates cilia motility via kinesin motor molecule (Kif3b) expression and cilia arm dynein assembly. Thus, two 3-OST family members cell-autonomously control LR patterning through distinct pathways that regulate KV fluid flow. We propose that individual 3-OST isozymes create distinct modified domains or ‘glycocodes’ on cell surface proteoglycans, which in turn regulate the response to diverse cell signaling pathways.

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