Tissue-specific expression of cre recombinase from the Pax8 locus.

Bouchard M, Souabni A, Busslinger M
Genesis. 2004 38 (3): 105-9

PMID: 15048807 · DOI:10.1002/gene.20008

The transcription factor Pax8 is expressed in the developing thyroid gland, inner ear, kidney, and mid-hindbrain region. Pax8 mutant mice die only postnatally due to a thyroid gland defect. Here we report the generation and expression analysis of a Pax8(cre) allele. Cre recombinase activity was detected in known Pax8 expression domains of Pax8(cre/+) and Pax8(cre/cre) embryos carrying the Z/AP transgene, which expresses alkaline phosphatase only after Cre-mediated excision of lacZ sequences. Alkaline phosphatase expression was additionally detected in the adrenal gland and in the facial, vestibulocochlear, and cuneate nerves, which have so far not been associated with Pax8 expression. Our data indicate that the Pax8(cre) allele provides a novel important tool for conditional gene manipulation and lineage tracing in different Pax8 expression domains.

Copyright 2004 Wiley-Liss, Inc.

MeSH Terms (16)

Alkaline Phosphatase Alleles Animals DNA-Binding Proteins Embryo, Mammalian Integrases Lac Operon Mice Mice, Transgenic Nuclear Proteins Paired Box Transcription Factors PAX8 Transcription Factor Tissue Distribution Trans-Activators Transgenes Viral Proteins

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