Oligonucleotide array-based comparative genomic hybridization analyses of gain 1q21 in multiple myeloma

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Authors

ZAORALOVÁ Romana NĚMEC Pavel GREŠLIKOVÁ Henrieta SMETANA Jan KOVÁŘOVÁ Lucie HÁJEK Roman KUGLÍK Petr

Year of publication 2010
Type Conference abstract
MU Faculty or unit

Faculty of Medicine

Citation
Description Using oligonucleotide array-CGH we analyzed 41 MM samples with gain of 1q21 (CKS1B gene) detected previously by FISH. As input material for array-CGH we used DNA from CD138+ cells separated from bone marrow using magnetic or fluorescence activated cell separation. Taking together 76% (13 of 41) cases had gained not only 1q21 locus but whole 1q arm. Moreover, another 17% (7 of 41) had at least 100 MB gain anywhere at the 1q arm. It is obvious, that not only CKS1B gene, but other genes are affected as well, for example IL-6R or BCL6. Many of them are possibly negative prognostic factors in MM. According to the FISH data (in about 95% cases we detect max. two extra copies of CKS1B), we did not find any high-level amplification of 1q21. In all cases, 1q aberrations were associated with additional copy number alterations, including monosomy of chromosome 13 or hyperdiploidy.
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