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E-cadherin, E-selectin and vascular cell adhesion molecule: immunohistochemical markers for differentiation between

Annette M Müller1, Andreas Weichert, Klaus-Michael Müller

  • 1Institut für Pathologie, Berufsgenossenschaftliche Kliniken Bergmannsheil-Universitätsklinik, Bürkle-de-la-Camp-Platz 1, 44789 Bochum, Germany. annette.mueller@ruhr-uni-bochum.de

Virchows Archiv : an International Journal of Pathology
|July 12, 2002
PubMed

Insights

E-cadherin is a novel immunohistochemical marker that can help differentiate between pleural mesotheliomas and pulmonary adenocarcinomas. This finding aids in the accurate diagnosis of these challenging tumors.

Area of Science:

  • Oncology
  • Pathology
  • Immunohistochemistry

Background:

  • Pleural mesotheliomas and pulmonary adenocarcinomas share histological similarities, complicating differential diagnosis.
  • Current diagnostic methods rely on panels of immunohistochemical markers due to the absence of a specific mesothelioma antibody.

Purpose of the Study:

  • To investigate the expression patterns of three adhesion molecules: vascular cell adhesion molecule (VCAM), E-selectin, and E-cadherin.
  • To identify novel immunohistochemical markers for distinguishing between mesotheliomas and adenocarcinomas in formalin-fixed, paraffin-embedded tissues.

Main Methods:

  • Immunohistochemical analysis of E-cadherin, VCAM, and E-selectin expression.
  • Study included 44 mesotheliomas (15 epithelioid, 15 biphasic, 14 sarcomatoid) and 18 peripheral pulmonary adenocarcinomas.

Main Results:

  • No significant differences in VCAM and E-selectin staining patterns were observed between adenocarcinomas and mesotheliomas.
  • E-cadherin showed significantly different expression: positive in nearly all adenocarcinomas and negative in most mesotheliomas.

Conclusions:

  • E-cadherin is a valuable immunohistochemical marker for differentiating pleural mesotheliomas from peripheral pulmonary adenocarcinomas.
  • E-cadherin offers improved diagnostic accuracy compared to VCAM and E-selectin for these tumor types.

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