PMID: 7528164Dec 1, 1994Paper

Immunocytochemical study of epidermal growth factor receptor, transforming growth factor alpha, and "squamous differentiation" in human endometrial carcinoma

Human Pathology
D SantiniA M Mancini

Abstract

The expression of epidermal growth factor receptor (EGFr) and transforming growth factor alpha (TGF-alpha) was compared with the presence of "squamous differentiation" (SD) visualized in various histotypes of endometrial carcinoma by using a panel of monoclonal antibodies. The results of the current study demonstrate that EGFr and TGF-alpha are present in routinely processed endometrial carcinoma. The highest positive EGFr and TGF-alpha expression was seen in the group of adenocarcinomas with SD. The more intense EGFr and TGF-alpha immunoreactivity was observed in "squamous" foci both in adenoacanthomas (AA) and in adenosquamous carcinomas (AS). These EGFr- and TGF-alpha-positive squamous areas prevalently displayed a "stratification-related" cytokeratin (CK) immunoprofile characterized by the expression of CKs 1, 4, 5, 10, 13, 14, and 16. No correlation was found between EGFr- and TGF-alpha-positive status and depth of myometrial invasion or surgical stage. These results clearly demonstrate that EGFr and TGF-alpha expression is related remarkably to endometrial carcinoma with "squamous" areas both morphologically and immunophenotypically. This specific association leads us to suggest that EGFr and TGF-alpha expression in endom...Continue Reading

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