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  • Title: Detection of cryptic chromosomal aberrations in the in vitro non-proliferating cells of acute myeloid leukemia.
    Author: Karst C, Heller A, Claussen U, Gebhart E, Liehr T.
    Journal: Int J Oncol; 2005 Aug; 27(2):355-9. PubMed ID: 16010415.
    Abstract:
    A total of 22 acute myeloid leukemia (AML) cases were analyzed by cell-specific comparative genomic hybridization (micro-CGH). Conventional banding analysis identified a monosomy 7 in six (group I), a trisomy 8 in eight (group II) and a normal karyotype in eight cases (group III). A total of 32 additional chromosomal imbalances was detected and confirmed in two independent micro-CGH experiments. However, only in 9 of the 22 cases (group I: 4 cases; group II: 1 case; group III: 4 cases) the existence of 11 of the 32 (34.5%) detected copy number alterations could be confirmed by other fluorescence in situ hybridization (FISH) approaches. These results lead to two conclusions: i) in the in vitro non-proliferating population of AML tumor cells one can detect cryptic chromosomal aberrations, which might constitute tumor markers of diagnostic and prognostic value; ii) The results of CGH need to be checked by other approaches.
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