Abstract:
:Transcription factor Gata3 is implicated in the formation of autosomal dominant hypoparathyroidism, sensorineural deafness, and renal anomaly (HDR) syndrome. We pursued to identify the potential Gata3 target genes by profiling the gene expression pattern in E9.5 Gata3-/- mouse embryos. Altogether four independent microarray hybridizations were carried out on NIA Mouse15K cDNA arrays. We discovered two hundred and sixty one genes that are downregulated in Gata3 mutant embryos at E9.5 (with a minimal 2.0-fold change). The majority of the differentially expressed genes belong to two functional groups--genes involved in transcription regulation and cellular signaling. One of the genes discovered to be downregulated in Gata3 mutant embryos was tumor suppressor gene Disabled 2. The validity of this finding was checked by using the whole mount in situ hybridization technology. This study revealed that the sites, where Dab2 is downregulated in the mutant embryos partly overlap with the Gata3 expression domains, including the mid-embryo region, branchial arches and facio-acoustic (VII-VIII) neural crest complex. This is the first time when tumor supressor gene Dab2 is shown to be implicated in the defective phenotype of Gata3 mutant mice.
journal_name
Life Scijournal_title
Life sciencesauthors
Airik R,Kärner M,Karis A,Kärner Jdoi
10.1016/j.lfs.2004.10.054subject
Has Abstractpub_date
2005-04-15 00:00:00pages
2559-68issue
22eissn
0024-3205issn
1879-0631pii
S0024-3205(05)00057-3journal_volume
76pub_type
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