Absence of group II phospholipase A2, a Paneth cell marker, from the epididymis

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Paneth cell-like metaplasia has been reported in the epithelium of the epididymis and prostatic adenocarcinomas. We studied the expression of group II phospholipase A2 (PLA2), a marker of Paneth cell differentiation, in six orchiectomy specimens with Paneth cell-like metaplasia. Both immunohistochemistry for group II PLA2 protein and in situ hybridization for the mRNA of group II PLA2 gave negative results in all six cases but positive reaction for lysozyme. The results show that the cells of the Paneth cell-like metaplasia are not true Paneth cells.

Keywords: Epididymis; Paneth-like cells

Document Type: Original Article

Affiliations: 1: Departments of Pathology, University of Turku, Turku, Finland, 2: Henry Ford Hospital, Detroit, Michigan and 3: Emory University Hospital, Atlanta, Georgia, USA

Publication date: April 1, 2001

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