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[Immunohistochemical characterization of salivary gland tumors with tissue micro-arrays].

Authors
  • Röser, K
  • Jäkel, K T
  • Herbst, H
  • Löning, T
Type
Published Article
Journal
Der Pathologe
Publication Date
Sep 01, 2005
Volume
26
Issue
5
Pages
345–352
Identifiers
PMID: 16049672
Source
Medline
License
Unknown

Abstract

Systematic analysis of gene expression in salivary gland tumors is necessary to identify genes associated with specific tumor types. From the salivary gland register of the University Hospital Hamburg-Eppendorf sufficient samples of various tumors were available to generate Tissue Micro-Arrays (TMA). In light of the considerable heterogeneity of salivary gland tumors, this study was aimed at evaluating the suitability of TMA in salivary gland diagnostics and research. Epithelial antigens are not sufficient for a tumor-type-specific characterization. Myoepithelial markers are suitable for distinguishing biphasic tumor types from purely epithelial tumors. The detection of amylase in acinic cell carcinomas, and the detection of steroid hormone receptors in these and other malignant salivary gland tumors particularly in combination with the expression of transcription factors, oncogenes and proliferation associated antigens result in characteristic expression profiles. These may prove to be valuable for further investigations, especially on the molecular level.

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