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Ann Oncol. 2000;11 Suppl 1:127-30.

The ATM gene in the pathogenesis of mantle-cell lymphoma.

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  • 1Abteilung Innere Medizin III, University of Ulm, Germany.

Abstract

BACKGROUND:

Mantle-cell lymphoma (MCL) is genetically characterized by the translocation t(11;14)(q13;q32) leading to an overexpression of cyclin-D1, but additional chromosomal abnormalities appear to be required for MCL pathogenesis.

PATIENTS AND METHODS:

Deletions involving chromosome 11q, which were recently found as recurrent aberrations in MCL, were analyzed at the molecular level in a series of 81 MCL by fluorescence in situ hybridization (FISH) with probes from a contiguous set of yeast artificial chromosomes (YACs) spanning bands 11q14-q24.

RESULTS AND CONCLUSIONS:

Loss of chromosome 11 material was observed in 37 of the 81 MCL cases (46%). The consensus deletion comprised YAC 801e11 containing the ATM gene. The minimal region of loss was further narrowed with P1-derived artificial chromosome (PAC) probes. This allowed the identification of a deletion confined to the genomic region of ATM, which, together with intragenic mutations found in the coding sequence, suggests a role of ATM as a tumor suppressor gene in MCL.

PMID:
10707794
[PubMed - indexed for MEDLINE]
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