Volume 131, Issue 5 pp. E830-E835
Short Report

Recurrent deletions of the TNFSF7 and TNFSF9 genes in 19p13.3 in diffuse large B-cell and Burkitt lymphomas

René Scholtysik

René Scholtysik

Institute of Cell Biology (Cancer Research), University of Duisburg-Essen, Medical School, Essen, Germany

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Inga Nagel

Inga Nagel

Institute of Human Genetics, Christian-Albrechts University Kiel and University Hospital Schleswig-Holstein, Campus Kiel, Kiel, Germany

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Markus Kreuz

Markus Kreuz

Institute of Medical Informatics, Statistics and Epidemiology (IMISE), University of Leipzig, Leipzig, Germany

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Inga Vater

Inga Vater

Institute of Human Genetics, Christian-Albrechts University Kiel and University Hospital Schleswig-Holstein, Campus Kiel, Kiel, Germany

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Maciej Giefing

Maciej Giefing

Institute of Human Genetics, Christian-Albrechts University Kiel and University Hospital Schleswig-Holstein, Campus Kiel, Kiel, Germany

Institute of Human Genetics, Polish Academy of Sciences, Poznan, Poland

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Carsten Schwaenen

Carsten Schwaenen

Department of Internal Medicine III, University Hospital of Ulm, Ulm, Germany

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Swen Wessendorf

Swen Wessendorf

Department of Internal Medicine III, University Hospital of Ulm, Ulm, Germany

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Lorenz Trümper

Lorenz Trümper

Department of Hematology/Oncology, University Hospital Göttingen, Göttingen, Germany

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Markus Loeffler

Markus Loeffler

Institute of Medical Informatics, Statistics and Epidemiology (IMISE), University of Leipzig, Leipzig, Germany

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Reiner Siebert

Reiner Siebert

Institute of Human Genetics, Christian-Albrechts University Kiel and University Hospital Schleswig-Holstein, Campus Kiel, Kiel, Germany

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Ralf Küppers

Corresponding Author

Ralf Küppers

Institute of Cell Biology (Cancer Research), University of Duisburg-Essen, Medical School, Essen, Germany

Tel.: 49-201-723-3384, Fax: +49-201-723-3386

Institute of Cell Biology (Cancer Research), University of Duisburg-Essen, Medical School, Virchowstraße 173, D-45122 Essen, GermanySearch for more papers by this author
First published: 31 December 2011
Citations: 25

Abstract

A single nucleotide polymorphism-chip analysis of 98 cases of aggressive B-cell lymphomas revealed a recurrent deletion at 19p13 in nine of the cases. Six further cases with deletions encompassing this region were found in array-comparative genomic hybridization data of 295 aggressive B-cell lymphomas from a previous study. Three cases even showed a homozygous deletion, suggesting a tumor suppressor gene in the deleted region. Two genes encoding members of the tumor necrosis factor superfamily (TNFSF) were located in the minimally deleted region, that is, TNFSF7 and TNFSF9. As no mutations were found within the coding exons of the remaining alleles in the lymphomas with heterozygous deletions, we speculate that the deletions may mostly function through a haploinsufficiency mechanism. The cases with deletions encompassed both diffuse large B-cell lymphomas and Burkitt lymphomas, and a deletion was also found in a Hodgkin lymphoma cell line. Thus, TNFSF7 and TNFSF9 deletions are recurrent genetic lesions in multiple types of human lymphomas.

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