Fgf16(IRESCre) mice: a tool to inactivate genes expressed in inner ear cristae and spiral prominence epithelium

Dev Dyn. 2009 Feb;238(2):358-66. doi: 10.1002/dvdy.21681.

Abstract

Fibroblast growth factors play important roles in inner ear development. Previous studies showed that mouse Fgf16 is expressed asymmetrically during the otic cup and vesicle stages of development, suggesting roles in regulating or responding to anteroposterior axial cues. Here, we studied otic Fgf16 expression throughout embryonic development and found transcripts in the developing cristae and in a few cells in the lateral wall of the cochlear duct. To determine the otic function of Fgf16 and to follow the fate of Fgf16-expressing cells, we generated an Fgf16(IRESCre) allele. We show that Fgf16 does not have a unique role in inner ear development and that the Fgf16 lineage is found throughout the three cristae, in portions of the semicircular canal ducts, and in the cochlear spiral prominence epithelial cells. This strain will be useful for gene ablations in these tissues.

Publication types

  • Research Support, N.I.H., Extramural

MeSH terms

  • Animals
  • Body Patterning
  • Cell Lineage / physiology
  • Cochlear Duct / embryology
  • Cochlear Duct / metabolism
  • Ear, Inner / embryology*
  • Ear, Inner / metabolism
  • Epithelium / embryology
  • Epithelium / metabolism
  • Fibroblast Growth Factors / biosynthesis*
  • Fibroblast Growth Factors / genetics
  • Mice
  • Mice, Mutant Strains
  • Semicircular Canals / embryology
  • Semicircular Canals / metabolism

Substances

  • Fgf16 protein, mouse
  • Fibroblast Growth Factors