Abstract:
BACKGROUND:Aberrant expression of the facilitative glucose transporter, GLUT1, is found in a wide spectrum of epithelial malignancies. The current study describes an immunohistochemical study of GLUT1 expression in benign, hyperplastic, and malignant endometrial epithelia. METHODS:One hundred sixteen formalin fixed, paraffin embedded sections of benign, hyperplastic, and malignant endometrial epithelium were immunostained with rabbit anti-GLUT1 antibody using the streptavidin-biotin method. RESULTS:Proliferative, secretory, and atrophic endometrium were not stained with GLUT1 antiserum. Rare, minute foci of tubal metaplasia stained positively. Simple and complex endometrial hyperplasias were consistently GLUT1 negative. All specimens of atypical hyperplasia had foci that were positive for GLUT1. All endometrial adenocarcinomas were GLUT1 positive. CONCLUSIONS:The results of the current study appear to indicate that 1) aberrant overexpression of GLUT1 is a consistent feature of endometrioid adenocarcinoma; 2) GLUT1 immunostaining may be useful in distinguishing benign hyperplasias from hyperplasias that are associated strongly with malignancy; and 3) some or all cases of atypical hyperplasia may be neoplastic rather than hyperplastic, given the existence of a molecular defect common to this hyperplastic subtype and endometrioid adenocarcinoma.
journal_name
Cancerjournal_title
Cancerauthors
Wang BY,Kalir T,Sabo E,Sherman DE,Cohen C,Burstein DEsubject
Has Abstractpub_date
2000-06-15 00:00:00pages
2774-81issue
12eissn
0008-543Xissn
1097-0142pii
10.1002/1097-0142(20000615)88:12<2774::AID-CNCR16>journal_volume
88pub_type
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