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  AML/MDS with 11q/MLL amplification show characteristic gene expression signature and interplay of DNA copy number changes

Zatkova, A., Merk, S., Wendehack, M., Bilban, M., Muzik, E. M., Muradyan, A., et al. (2009). AML/MDS with 11q/MLL amplification show characteristic gene expression signature and interplay of DNA copy number changes. Genes, Chromosomes and Cancer, 48(6), 510-520. doi:10.1002/gcc.20658.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0010-7D84-D Version Permalink: http://hdl.handle.net/11858/00-001M-0000-0010-7D85-B
Genre: Journal Article

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 Creators:
Zatkova, Andrea, Author
Merk, Sylvia, Author
Wendehack, Melanie1, Author
Bilban, Martin, Author
Muzik, Eva Maria, Author
Muradyan, Artur2, Author              
Haferlach, Claudia, Author
Haferlach, Torsten, Author
Wimmer, Katharina, Author
Fonatsch, Christa, Author
Ullmann, Reinhard3, Author              
Affiliations:
1Max Planck Society, ou_persistent13              
2Dept. of Vertebrate Genomics (Head: Hans Lehrach), Max Planck Institute for Molecular Genetics, Max Planck Society, ou_1433550              
3Molecular Cytogenetics (Reinhard Ullmann), Dept. of Human Molecular Genetics (Head: Hans-Hilger Ropers), Max Planck Institute for Molecular Genetics, Max Planck Society, ou_1479645              

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 Abstract: AML/MDS patients carrying 11q amplifications involving the mixed lineage leukemia gene (MLL) locus are characterized by a complex aberrant karyotype (CAK) frequently including deletions within 5q, 17p, and 7q, older age and fast progression of the disease with extremely poor prognosis. MLL has been shown to be overexpressed in cases with 11q amplification. However, in most of the cases, the amplified region is not restricted to the MLL locus. In this study, we investigated 19 patients with AML/MDS and MLL gain/amplification. By means of array CGH performed in 12 patients, we were able to delineate the minimal deleted regions within 5q and 17p and identified three independent regions 11q/I-III that were amplified in all cases. Gene expression profiles established in 15 cases were used to identify candidate genes within these regions. Notably, analysis of our data suggests a correlation of loss of 5q and 17p and expression of genes present in 11q23-25. Furthermore, we demonstrate that the gene expression signature can be used to discriminate AML/MDS with MLL amplification from several other types of AML.

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Language(s): eng - English
 Dates: 2009-06
 Publication Status: Published in print
 Pages: -
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 Table of Contents: -
 Rev. Type: -
 Identifiers: eDoc: 473678
DOI: 10.1002/gcc.20658
URI: 10.1002/gcc.20658
 Degree: -

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Title: Genes, Chromosomes and Cancer
Source Genre: Journal
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Pages: - Volume / Issue: 48 (6) Sequence Number: - Start / End Page: 510 - 520 Identifier: ISSN: 1045-2257