GATA3 is downregulated during hair cell differentiation in the mouse cochlea

Citation
Mn. Rivolta et Mc. Holley, GATA3 is downregulated during hair cell differentiation in the mouse cochlea, J NEUROCYT, 27(9), 1998, pp. 637-647
Citations number
48
Categorie Soggetti
Neurosciences & Behavoir
Journal title
JOURNAL OF NEUROCYTOLOGY
ISSN journal
03004864 → ACNP
Volume
27
Issue
9
Year of publication
1998
Pages
637 - 647
Database
ISI
SICI code
0300-4864(199809)27:9<637:GIDDHC>2.0.ZU;2-3
Abstract
GATA3 is a transcription factor expressed in the inner ear during the early stages of development. A monoclonal antibody revealed that it is expressed in spiral ganglion cells and in all cells of the developing auditory senso ry epithelium in the mouse before the hair cells differentiate at embryonic days 14-16. Expression decreases selectively in the hair cells as they dif ferentiate progressively from the base to the apex of the developing organ of Corti. GATA3 subsequently decreases in the supporting cells and cannot b e detected by immunofluorescence in any cell of the adult sensory epitheliu m. It is not expressed in the vestibular sensory epithelia or surrounding t issues from embryonic day 14. We suggest that GATA3 could act as a represso r of critical genes involved in cell differentiation in the organ of Corti, enabling a progressive formation of the adult cellular pattern.