The hypothesis in this application is that Xath regulates the differentiation of olfactory neurons in Xenopus and functions with another basic-helix-loop-helix (bHLH) gene, NeuroD, to regulate successive stages of olfactory neuron development.
The first aim i s to use in situ hybridization a immunohistochemistry to determine which cell types express Xath during development and regeneration of the olfactory epithelium and determine whether Xath expression coincides with specific stages in olfactory neurogenesis.
The second aim i s to overexpress Xath by RNA injection and to determine whether Xa expression is sufficient to promote differentiation of olfactory neuron precursors.
The third aim i s to perform double in situ hybridization and compare the expression of Xath and NeuroD to see if there is evidence for a functional relationship between these bHLH genes.

Agency
National Institute of Health (NIH)
Institute
National Institute on Deafness and Other Communication Disorders (NIDCD)
Type
Small Research Grants (R03)
Project #
5R03DC003530-02
Application #
2749280
Study Section
Special Emphasis Panel (ZDC1-SRB-S (01))
Project Start
1997-08-01
Project End
2000-07-31
Budget Start
1998-08-01
Budget End
1999-07-31
Support Year
2
Fiscal Year
1998
Total Cost
Indirect Cost
Name
University of Utah
Department
Biology
Type
Schools of Medicine
DUNS #
City
Salt Lake City
State
UT
Country
United States
Zip Code
84112
Burns, Carole J; Vetter, Monica L (2002) Xath5 regulates neurogenesis in the Xenopus olfactory placode. Dev Dyn 225:536-43