To clarify the mechanism of extracellular matrix (ECM) remodeling in bovine endometrium, we investigated the regulation of matrix metalloproteinases (MMPs) and tissue inhibitor of metalloproteinases-3 (TIMP-3) in bovine endometrial stromal cells (BESCs) on type-I collagen gel. When BESCs were seeded onto the center of collagen gel placed in culture dishes, the cells proliferated and formed mult...

Differentiation of human endometrial stromal cells (HESC) into decidual cells represents a highly coordinated process essential for embryo implantation. We show that decidualizing HESC down-regulate the histone methyltransferase enhancer of Zeste homolog 2 (EZH2), resulting in declining levels of trimethylation of histone 3 on lysine 27 (H3K27me3) at the proximal promoters of key decidual marke...

Introduction: Endometrial Carcinoma is one of the most common malignancy of female genital tract and third most common worldwide. No widely accepted screening test for endometrial carcinoma exists. However, cervical cytology has been found to be useful in detecting endometrial disease. The 2001 Bethesda system recommends the reporting of endometrial cells in women of 40 years and more, regardle...

The adult human endometrium rapidly cycles through stages of cell proliferation, differentiation and degeneration. Inappropriate endometrial cell differentiation is a contributing factor in diseases such as endometrial carcinoma and endometriosis. We have identified two homeobox genes that may play a role in the control of endometrial cell differentiation and development. In-situ mRNA hybridiza...

BACKGROUND p16 has been reported to disappear by hypermethylation in various cancers. However, the relationship between the frequency of hypermethylation of p16 and the mechanism of its inactivation has not been completely elucidated in endometrial cancer. MATERIALS AND METHODS Hypermethylation in the promoter region of the p16 gene and the expression of the p16 protein in 51 specimens, inclu...

BACKGROUND A microRNA, miR-34a, plays a key role in inhibiting cellular transformation and carcinogenesis by controlling cell cycle regulation and cell proliferation in various human tumors. However, miR-34a has rarely been reported in endometrial cancer research in Korea. This study was undertaken to analyze miR-34a expression in simple endometrial hyperplasia and endometrial cancer, and to ev...

BACKGROUND Endometrial lesions are common in obstetrics and gynecology, including endometrial polyps, uterine adenomyosis, and malignant endometrial adenocarcinoma. Endometrial lesions seriously affect women's health, fertility, quality of life, and life safety. As a pro-apoptosis gene, p53 is considered to be closely related with human tumors. Murine double mimute 2 (MDM2) is an oncogene that ...

OBJECTIVE Hypermethylation of CpG island is a common mechanism for the inactivation of tumor suppressor genes. Hypermethylation of the E-cadherin promoter region has been rarely studied in endometrial carcinoma of Korean women. The purpose of this study is to investigate methylation status of E-cadherin promoter region in endometrial carcinomas and endometrial hyperplasias, and analyze the corr...

OBJECTIVE To evaluate the performance of simultaneous endometrial aspiration at the time of sonohysterography for screening postmenopausal women at risk for endometrial cancer. METHODS A retrospective cohort study of women older than 50 years who underwent saline-infusion sonohysterography for the evaluation of their endometrium. On completion of imaging, the remaining intracavitary saline an...