Format

Send to

Choose Destination
Mol Endocrinol. 2002 Apr;16(4):837-46.

The synergistic activity of thyroid transcription factor 1 and Pax 8 relies on the promoter/enhancer interplay.

Author information

1
Laboratory of Immunology, Regina Elena Cancer Institute, Rome 00158, Italy.

Abstract

The transcription factors, thyroid transcription factor 1 (TTF-1) and Pax 8, play a pivotal role in the transcriptional regulation of the thyroid differentiation marker genes and in the differentiation of the thyroid follicular cells. They have a very restricted tissue distribution, and the thyrocyte is the only cell type with the simultaneous expression of these factors. Here we show that TTF-1 and Pax 8 cooperatively activate their target genes and that their synergistic activity requires the cross-talk between enhancer and gene promoter. We have characterized the cis and trans requirements of the TTF1/Pax 8 synergistic activity on the thyroperoxidase gene. We show that their synergy is also important for thyroglobulin gene transcription.

PMID:
11923479
DOI:
10.1210/mend.16.4.0808
[Indexed for MEDLINE]

Supplemental Content

Full text links

Icon for Silverchair Information Systems
Loading ...
Support Center