The human gene Teratocarcinoma-derived growth factor 1 (TDGF1)/Cripto-1/CR-1 which is expressed in a wide variety of human carcinomas is a member of the EGF-cripto FRL1 cryptic (EGF-CFC) gene family. A majority of human colorectal tumors and hepatomas are known to possess a constitutively active canonical Wnt/β-catenin/TCF signaling pathway, also express CR-1. Expression of a short form of CR-1 mRNA in colon carcinoma and hepatoma cell lines suggests that there may be differential regulation of CR-1 expression by the canonical Wnt signaling pathway in colon cancer as well as hepatoma cell lines. The present study demonstrates a direct transcriptional regulation of the short form CR-1 expression by the canonical Wnt signaling pathway through an intronic-exonic enhancer element, containing three tandem TCF/LEF binding sites within the CR-1 gene.
|Original language||English (US)|
|Number of pages||5|
|Journal||Biochemical and Biophysical Research Communications|
|State||Published - Mar 30 2007|
ASJC Scopus subject areas
- Molecular Biology
- Cell Biology