Title : Retinoic acid represses Oct-3/4 gene expression through several retinoic acid-responsive elements located in the promoter-enhancer region.

Pub. Date : 1994 Feb

PMID : 8289783






8 Functional Relationships(s)
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1 In accordance with the suggestion that suppression of Oct-3/4 expression is a crucial step during embryogenesis, the Oct-3/4 upstream region contains multiple targets for RA-induced repression, probably to ensure accurate and prompt repression of Oct-3/4 expression. Tretinoin POU class 5 homeobox 1 Homo sapiens
2 Retinoic acid represses Oct-3/4 gene expression through several retinoic acid-responsive elements located in the promoter-enhancer region. Tretinoin POU class 5 homeobox 1 Homo sapiens
3 Retinoic acid (RA)-induced differentiation of embryonal carcinoma (EC) cells is accompanied by decreased expression of the Oct-3/4 gene. Tretinoin POU class 5 homeobox 1 Homo sapiens
4 Retinoic acid (RA)-induced differentiation of embryonal carcinoma (EC) cells is accompanied by decreased expression of the Oct-3/4 gene. Tretinoin POU class 5 homeobox 1 Homo sapiens
5 Previous findings show that sequences in the Oct-3/4 enhancer region (designated RARE1) are targets for RA-mediated repression (H. Okazawa, K. Okamoto, F. Ishino, T. Ishino-Kaneko, S. Takeda, Y. Toyoda, M. Muramatsu, and H. Hamada, EMBO J. Tretinoin POU class 5 homeobox 1 Homo sapiens
6 We identified a novel cis element in the Oct-3/4 promoter harbors a putative Sp1 binding site and a RA-responsive element (designated RAREoct), which are juxtaposed to one another. Tretinoin POU class 5 homeobox 1 Homo sapiens
7 Using site-directed mutagenesis, we show that the RAREoct contributes to the transcriptional activation of Oct-3/4 promoter in P19 cells and, most interestingly, mediates the RA-induced repression in RA-differentiated EC cells. Tretinoin POU class 5 homeobox 1 Homo sapiens
8 In accordance with the suggestion that suppression of Oct-3/4 expression is a crucial step during embryogenesis, the Oct-3/4 upstream region contains multiple targets for RA-induced repression, probably to ensure accurate and prompt repression of Oct-3/4 expression. Tretinoin POU class 5 homeobox 1 Homo sapiens