Developmental expression of the TGFβs in the mouse cochlea

Nancy E. Paradies, L. Philip Sanford, Thomas Doetschman, Rick A. Friedman

Research output: Contribution to journalArticlepeer-review

18 Scopus citations


Mice with targeted disruption of the TGFβ2 gene display defects in epithelial-mesenchymal tissue interactions in several tissues including the developing cochlea. Specifically, the region of the spiral limbus and the overlying interdental cells, structures putatively involved in endolymphatic fluid homeostasis, display morphogenetic abnormalities. These findings prompted us to explore the pre-natal and post-natal expression of all three mammalian TGFβ genes in the developing mouse inner ear. TGFβ2 mRNA expression was identified throughout the cochlear epithelium at all of the developmental stages examined. TGFβ3 mRNA expression was identified in the mesenchymal tissues of the cochlea surrounding the otic epithelium. We found no evidence for compensation by the other two TGFβ isoforms in the cochleas of the TGFβ2 mutants.

Original languageEnglish (US)
Pages (from-to)165-168
Number of pages4
JournalMechanisms of Development
Issue number1-2
StatePublished - 1998


  • Cochlea
  • Epithelial-mesenchymal interaction
  • Mouse
  • Spiral limbus
  • TGFβ

ASJC Scopus subject areas

  • Embryology
  • Developmental Biology


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