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Updated: Apr 19, 2026

Assessment of Ovarian Cancer Spheroid Attachment and Invasion of Mesothelial Cells in Real Time
Published on: May 20, 2014
Expression of adhesion molecules and the proliferative activity of carcinosarcoma of the ovary
Hiroshi Hirano1, Tomohiko Kizaki2, Takashi Ito2
1Department of Diagnostic Pathology, Sanda City Hospital, Sanda, Hyogo, Japan Department of Pathology, Steel Memorial Hirohata Hospital, Hyogo, Japan hihirano@toneyama.go.jp.
Background:
To clarify the mechanism underlying the formation of a sarcomatous component of ovarian carcinosarcoma, we investigated the expression of adhesion molecules and the proliferative activity of carcinosarcomas.
Materials And Methods:
We immunohistochemically examined the expression of E-cadherin and β-catenin, and the Ki-67 labeling index (Ki-67 LI) in six carcinosarcomas containing endometrioid carcinoma as a carcinomatous component.
Results:
The sarcomatous components of the carcinosarcomas did not express E-cadherin or β-catenin. All carcinomatous components expressed these molecules but the expression was reduced compared to that in endometrioid ovarian carcinomas. In five of the six carcinosarcomas, the Ki-67 LI of the sarcomatous component was less than that of the carcinomatous component.
Conclusion:
The present results suggest that a carcinomatous component transforms more easily than an ordinary endometrioid carcinoma from the viewpoint of the cell adhesion, and cells in a carcinomatous component continuously transform into sarcomatous cells during the growth of carcinosarcoma.
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