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Immunoreactivity for bcl-2 protein in malignant mesothelioma and non-neoplastic mesothelium
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Original ArticleImmunoreactivity for bcl-2 protein in malignant mesothelioma and non-neoplastic mesothelium K. Segers1, M. Ramael1, S. Kumar Singh1, E. Van Marck1
, J. Weyler2, J. Van Meerbeeck3 and P. Vermeire3 | (1) | Department of Pathology, University Hospital of Antwerp, University of Antwerp, Wilrijkstraat 10, B-2650 Edegem, Belgium |
| (2) | Department of Epidemiology and Social Medicine, University of Antwerp, Wilrijk, Belgium |
| (3) | Department of Respiratory Medicine, University Hospital of Antwerp, University of Antwerp, Edegem, Belgium |
Received: 1 April 1994 Accepted: 28 April 1994 Abstract Immunohistochemical study of bcl-2 protein immunoreactivity in human non-neoplastic mesothelium (44 cases) and in malignant mesothelioma (62 cases) using a murine monoclonal antibody (clone 124) showed cytoplasmic immunoreactivity for bcl-2 protein in five cases of malignant mesothelioma. Non-neoplastic mesothelium was not immunoreactive. Immunoreactivity for bcl-2 protein does not add useful prognostic information in malignant mesothelioma since survival times of bcl-2 positive and bcl-2 negative cases did not differ. Nevertheless, the detection of bcl-2 protein in malignant mesothelioma might be useful for the differentiation from reactive mesothelium. Key words Bcl-2 protein - Mesothelioma - Pleura - Immunohistochemistry - Prognosis
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