Cyclooxygenase-2 expression correlates with apoptosis and angiogenesis in endometrial cancer tissue.

Abstract:

BACKGROUND:Recent experimental studies have indicated that cyclooxygenase-2 (COX-2) suppresses tumor-cell apoptosis and induces intratumoral angiogenesis. PATIENTS AND METHODS:A series of 70 endometrial cancer cases that had undergone a curative resection was studied to determine the correlation between COX-2 expression, apoptosis and angiogenesis in human endometrial cancer tissue. Tissue specimens were evaluated for COX-2, single-strand DNA (ssDNA, apoptosis) and CD31 (angiogenesis) by immunohistochemistry. RESULTS:COX-2 expression was positive exclusively in cancer cells in 37 cases (53%). The apoptotic index was lower in COX-2-positive cancer cells than COX-2-negative cases. Microvessel density was higher in COX-2-positive cancer cases than COX-2-negative cases. COX-2 overexpression was significantly associated with poor prognosis. CONCLUSION:These results suggested that tumor-produced COX-2, which was associated with inhibiting apoptosis and promoting angiogenesis, provided additional prognostic information in endometrial cancer patients.

journal_name

Anticancer Res

journal_title

Anticancer research

authors

Ohno S,Ohno Y,Suzuki N,Soma G,Inoue M

subject

Has Abstract

pub_date

2007-11-01 00:00:00

pages

3765-70

issue

6A

eissn

0250-7005

issn

1791-7530

journal_volume

27

pub_type

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