Characterization of inhibitor of differentiation (Id3) gene expression in the developing cochlear tissue of rats.

Conclusion: The Id3 gene is expressed in the developing cochlear tissue and participates in the development of cochlear progenitor hair cells during the embryonic stage.

Objectives: Inhibitor of differentiation (Id3) is an important transcription factor expressed in the cochlear tissue and progenitor hair cells. It is likely to be involved in cell-cycle progression and the proliferation of cochlear progenitor hair cells during the embryonic stage.