Volume 13, Issue 3 pp. 211-216
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Predominant occurrence of somatic mutations of the NF2 gene in meningiomas and schwannomas

P. Mérel

P. Mérel

Laboratoire de Génétique des Tumeurs, INSERM U434, Institut Curie, Paris, France

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K. Hoang-Xuan

K. Hoang-Xuan

Laboratoire de Génétique des Tumeurs, INSERM U434, Institut Curie, Paris, France

Service de Neurologic, CHU Pitié-Salpetrière, Paris, France

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M. Sanson

M. Sanson

Laboratoire de Génétique des Tumeurs, INSERM U434, Institut Curie, Paris, France

Service de Neurologic, CHU Pitié-Salpetrière, Paris, France

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A. Moreau-Aubry

A. Moreau-Aubry

Laboratoire de Génétique des Espécés, INSERM U21, I, Paris, France

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E. K. Bijlsma

E. K. Bijlsma

Institute of Human Genetics, University of Amsterdam, Amsterdam, The Netherlands

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C. Lazaro

C. Lazaro

Department de Genética Molecular, Institu de Recerca Oncologica, Hospital Duran i Reynals Autovia de Castelldefels, Barcelona, Spain

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J. P. Moisan

J. P. Moisan

Laboratoire de Génétique des Espécés, INSERM U21, I, Paris, France

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F. Resche

F. Resche

Service de Neurochirurgie, CHU Nantes, Nastes, France

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I. Nishisho

I. Nishisho

Division of Clinical Genetics, Bromedical Research Center, Osaka University Medical School, Osaka, Japan

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X. Estivill

X. Estivill

Department de Genética Molecular, Institu de Recerca Oncologica, Hospital Duran i Reynals Autovia de Castelldefels, Barcelona, Spain

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J. Y. Delattre

J. Y. Delattre

Service de Neurologic, CHU Pitié-Salpetrière, Paris, France

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M. Poisson

M. Poisson

Service de Neurologic, CHU Pitié-Salpetrière, Paris, France

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C. Theillet

C. Theillet

Institut de Génétique Moléculaire, CNRS UMR 9942, Montpellier, France

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T. Hulsebos

T. Hulsebos

Institute of Human Genetics, University of Amsterdam, Amsterdam, The Netherlands

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O. Delattre

O. Delattre

Laboratoire de Génétique des Tumeurs, INSERM U434, Institut Curie, Paris, France

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G. Thomas

Corresponding Author

G. Thomas

Laboratoire de Génétique des Tumeurs, INSERM U434, Institut Curie, Paris, France

Laboratoire de Génétique des Tumeurs, INSERM U434, Institut Curie, 26 rue d'Ulm, 75231 Paris Cedex 05, FranceSearch for more papers by this author
First published: July 1995
Citations: 106

Abstract

The NF2 gene is a putative tumor-suppressor gene that, when it is altered in the germline, causes neurofibromatosis type 2, a tumor-susceptibility disease that mainly predisposes to schwannomas and meningiomas. The recent isolation of the NF2 gene on chromosome 22 allows the identification of somatic mutations in human tumors. We have searched for mutations of the NF2 gene in 331 primary human tumors using a screening method based on denaturing gradient gel electrophoresis, which allows the detection of mutations in 95% of the coding sequence. Mutations were observed in 17 of 57 meningiomas and in 30 of 89 schwannomas. No mutations were observed for 17 ependymomas, 70 gliomas, 23 primary melanomas, 24 pheochromocytomas, 15 neuroblastomas, 6 medulloblastomas, 15 colon cancers, and 15 breast cancers. All meningiomas and one-half of the schwannomas with identified NF2 mutations demonstrated chromosome 22 allelic losses. We conclude that the involvement of the NF2 gene in human tumorigenesis may be restricted to schwannomas and meningiomas, where it is frequently inactivated by a two-hit process. © 1995 Wiley-Liss, Inc.

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