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J Med Dent Sci. 2005 Dec;52(4):189-93.

Elevated cyclooxygenase-2 expression is associated with histological grade in invasive ductal breast carcinoma.

Author information

1
Department of Surgical Oncology, Graduate School of Medicine, Tokyo Medical and Dental University 1-5-45, Yushima, Bunkyo-ku, Tokyo 113-8519, Japan.

Abstract

PURPOSE:

The aim of this study was to evaluate the expression of cyclooxygenase-2 in human breast cancer using immunohistochemistry and to determine whether the expression of cyclooxygenase-2 is associated with clinicopathological factors in invasive ductal breast carcinoma.

METHODS:

Cyclooxygenase-2 expression was investigated by immunohistochemistry in 30 invasive ductal breast carcinoma specimens and relationships between cyclooxygenase-2 expression and age, histological grade, histological type, nodal status, and hormone receptor status were evaluated.

RESULTS:

Cyclooxygenase-2 expression was found in 56.7% of the tumor samples and was related to histological grade (P<0.01) and histological type (P<0.001).

CONCLUSIONS:

Our results suggest that cyclooxygenase-2 expression has an important role in tumor differentiation in invasive ductal breast carcinoma.

PMID:
16669452
[Indexed for MEDLINE]

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