Abstract
Endometrioid adenocarcinoma is the most frequent form of endometrial cancer, usually developing in pre- and peri-menopausal women. β-catenin abnormalities are common in endometrioid type endometrial carcinomas with squamous differentiation. To investigate the role of β-catenin (Ctnnb1) in uterine development and tumorigenesis, mice were generated which expressed a dominant stabilized β-catenin or had β-catenin conditionally ablated in the uterus by crossing the PRCre mouse with the Ctnnb1 f(ex3)/+ mouse or Ctnnb1f/f mouse, respectively. Both of the β-catenin mutant mice have fertility defects and the ability of the uterus to undergo a hormonally induced decidual reaction was lost. Expression of the dominant stabilized β-catenin, PRcre/+Ctnnb1 f(ex3)/+, resulted in endometrial glandular hyperplasia, whereas ablation of β-catenin, PRcre/+Ctnnb1f/f, induced squamous cell metaplasia in the murine uterus. Therefore, we have demonstrated that correct regulation of β-catenin is important for uterine function as well as in the regulation of endometrial epithelial differentiation.
Original language | English (US) |
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Pages (from-to) | 31-40 |
Number of pages | 10 |
Journal | Oncogene |
Volume | 28 |
Issue number | 1 |
DOIs | |
State | Published - Jan 8 2009 |
Keywords
- Estrogen
- Hyperplasia
- Uterus
- β-catenin
ASJC Scopus subject areas
- Molecular Biology
- Genetics
- Cancer Research