AIMS: Overexpression of hepatocyte nuclear factor-1β (HNF-1β) has been found in ovarian clear cell carcinoma (OCCC) but not in other types of ovarian carcinoma. The aim of this study was to clarify whether the overexpression of HNF-1β is specific for OCCC, and does not occur in ovarian carcinoma with clear cell change. METHODS AND RESULTS: Immunohistochemistry was performed on 178 ovarian carcinomas with clear cells (80 OCCCs, 60 high-grade serous, 25 endometrioid, and 13 mixed endometrioid and clear cell), 22 ovarian high-grade serous carcinomas without clear cells, 41 renal cell carcinomas (RCCs) and 20 hepatocellular carcinomas (HCCs) with clear cytoplasm. Results were evaluated using an H-score (percentage × intensity). Most OCCCs were diffusely and strongly positive (mean H-score 15.1). High-grade serous carcinoma and endometrioid carcinoma with clear cells were usually negative or focally and weakly positive (mean H-scores 1.5 and 1.7, respectively). High-grade serous carcinoma without clear cells had a mean H-score of 0.77. The mean H-scores of the endometrioid and clear cell components in mixed endometrioid and clear cell carcinoma were 6.2 and 15.7, respectively. HNF-1β was expressed in 95.1% of RCCs and in 30% of HCCs. CONCLUSIONS: The diagnosis of ovarian carcinomas with clear cells can be made with greater accuracy by using the intensity and extent of immunoreactivity for HNF-1β.
AIMS: Overexpression of hepatocyte nuclear factor-1β (HNF-1β) has been found in ovarian clear cell carcinoma (OCCC) but not in other types of ovarian carcinoma. The aim of this study was to clarify whether the overexpression of HNF-1β is specific for OCCC, and does not occur in ovarian carcinoma with clear cell change. METHODS AND RESULTS: Immunohistochemistry was performed on 178 ovarian carcinomas with clear cells (80 OCCCs, 60 high-grade serous, 25 endometrioid, and 13 mixed endometrioid and clear cell), 22 ovarian high-grade serous carcinomas without clear cells, 41 renal cell carcinomas (RCCs) and 20 hepatocellular carcinomas (HCCs) with clear cytoplasm. Results were evaluated using an H-score (percentage × intensity). Most OCCCs were diffusely and strongly positive (mean H-score 15.1). High-grade serous carcinoma and endometrioid carcinoma with clear cells were usually negative or focally and weakly positive (mean H-scores 1.5 and 1.7, respectively). High-grade serous carcinoma without clear cells had a mean H-score of 0.77. The mean H-scores of the endometrioid and clear cell components in mixed endometrioid and clear cell carcinoma were 6.2 and 15.7, respectively. HNF-1β was expressed in 95.1% of RCCs and in 30% of HCCs. CONCLUSIONS: The diagnosis of ovarian carcinomas with clear cells can be made with greater accuracy by using the intensity and extent of immunoreactivity for HNF-1β.
Authors: Deborah DeLair; Guangming Han; Julie A Irving; Samuel Leung; Carol A Ewanowich; Teri A Longacre; Cyril B Gilks; Robert A Soslow Journal: Int J Gynecol Pathol Date: 2013-11 Impact factor: 2.762
Authors: Ivana Bubancova; Helena Kovarikova; Jan Laco; Ema Ruszova; Ondrej Dvorak; Vladimir Palicka; Marcela Chmelarova Journal: Int J Mol Sci Date: 2017-02-22 Impact factor: 5.923
Authors: Jaclyn C Watkins; Michael J Downing; Marta Crous-Bou; Evan L Busch; Maxine Chen; Immaculata De Vivo; George L Mutter Journal: J Cancer Epidemiol Date: 2021-03-12