Korean J Obstet Gynecol.  2005 Aug;48(8):1942-1949.

Increased Proliferating Activity and Bcl-2 Protein Expression in Eutopic Endometrium with Endometriosis

• Kim MR
• Lee JH
• Seo SS
• Chang HJ
• Hwang KJ
• Kim YA
• Park DW

Abstract

OBJECTIVE
To evaluate the expression of proliferating activity and Bcl-2 protein property in eutopic endometrium with endometriosis.
METHODS
Endometrial tissues were obtained for endometrial biopsy from 2 groups of women. The study groups were 10 samples, which consisted of eutopic endometrial tissue with endometriosis. The remaining 10 samples were control group, which consisted of eutopic endometrial tissue without endometriosis. Expressions of Ki-67 and Bcl-2 protein were immunohistochemically investigated by polyclonal antibody. The computer program (Image pro (+), USA) was used to analysis the staining intensity of tissue samples objectively. Endometrial cells were cultured for 72 hours and the MTT colorimetric assay was used to detect cell proliferation.
RESULTS
In the group of eutopic endometrium with endometriosis, the activity of cell proliferation was significantly increased. The expression of Ki-67 protein and MTT assay were significantly higher than those in the control group. And expression of Bcl-2 protein was significantly higher than those in the control group (P<0.05).
CONCLUSION
Eutopic endometrium with endometriois showed increasing Bcl-2 protein expression and increasing proliferation. It was believed to be associated with endometrial pathological abnormalities in endometriosis.

Keyword

Endometriosis; Endometrium; Proliferation; Bcl-2 protein

MeSH Terms

Biopsy
Cell Proliferation
Endometriosis*
Endometrium*
Female
Humans