Volume 92, Issue 4 pp. 551-554
Research Article

Analysis of human meningiomas for aberrations of the MADH2, MADH4, APM-1 and DCC tumor suppressor genes on the long arm of chromosome 18

Rainer Büschges

Rainer Büschges

Department of Pathology, Division of Molecular Histopathology, University of Cambridge, Addenbrooke's Hospital, Cambridge, United Kingdom

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Jan Boström

Jan Boström

Department of Neurosurgery, University of Bonn Medical Center, Bonn, Germany

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Marietta Wolter

Marietta Wolter

Department of Neuropathology, Heinrich-Heine-University, Düsseldorf, Germany

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Britta Blaschke

Britta Blaschke

Department of Neuropathology, Heinrich-Heine-University, Düsseldorf, Germany

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Ruthild G. Weber

Ruthild G. Weber

Institute of Human Genetics, Ruprecht-Karls-University, Heidelberg, Germany

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Peter Lichter

Peter Lichter

Abteilung Organisation komplexer Genome, Deutsches Krebsforschungszentrum, Heidelberg, Germany

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V. Peter Collins

V. Peter Collins

Department of Pathology, Division of Molecular Histopathology, University of Cambridge, Addenbrooke's Hospital, Cambridge, United Kingdom

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Guido Reifenberger

Corresponding Author

Guido Reifenberger

Department of Neuropathology, Heinrich-Heine-University, Düsseldorf, Germany

Fax: +49-211-811-7804

Department of Neuropathology, Heinrich-Heine-University, Moorenstrasse 5, D-40225 Düsseldorf, GermanySearch for more papers by this author
First published: 09 April 2001
Citations: 22

The first three authors contributed equally to this article.

Abstract

We have previously reported that losses of genomic material from the long arm of chromosome 18 are frequent in atypical and anaplastic meningiomas but rare in benign meningiomas. In the present study, we have investigated a series of 37 meningiomas for mutation and expression of 4 tumor suppressor genes (MADH2, MADH4, APM-1 and DCC) located at 18q21. Comparative genomic hybridization or loss of heterozygosity analysis showed losses on chromosome 18 that included sequences from 18q21 in 15 of 37 tumors. Mutation analysis of APM-1revealed a missense mutation (c. 1819G>A: G607S) in 1 atypical meningioma. None of the tumors showed mutations of MADH2 and MADH4 or loss of detectable transcripts from MADH2, MADH4, APM-1and DCC. In contrast to human brain tissue, normal leptomeninges and meningiomas showed preferential expression of a DCC splice variant lacking 60 base pairs from exon 17. Taken together, our data do not support a significant role for MADH2, MADH4, APM-1 and DCC alterations in the pathogenesis of meningiomas. The targeted gene that is inactivated in most meningiomas with 18q losses remains to be identified. © 2001 Wiley-Liss, Inc.

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