Genome-wide DNA analysis identifies recurrent imbalances predicting outcome in chronic lymphocytic leukaemia with 17p deletion - PubMed (original) (raw)

doi: 10.1111/j.1365-2141.2008.07373.x. Epub 2008 Aug 24.

Andrea Rinaldi, Ivo Kwee, Elisa Sozzi, Donatella Raspadori, Paola M V Rancoita, Marta Scandurra, Davide Rossi, Clara Deambrogi, Daniela Capello, Emanuele Zucca, Daniela Marconi, Riccardo Bomben, Valter Gattei, Francesco Lauria, Gianluca Gaidano, Francesco Bertoni

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Genome-wide DNA analysis identifies recurrent imbalances predicting outcome in chronic lymphocytic leukaemia with 17p deletion

Francesco Forconi et al. Br J Haematol. 2008 Nov.

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Abstract

Deletion of 17p (TP53) identifies a rare subset of chronic lymphocytic leukaemia (17p- CLL) with aggressive behaviour. Genome-wide DNA-profiling was performed to investigate 18 patients with 17p- CLL. All cases had multiple copy-number (CN) changes. Among the several recurrent CN changes identified, 8q24.13-q24.1-gain (MYC), 8p-loss (TNFRSF10A/B, also known as TRAIL1/2) and 2p16.1-p14-gain (REL/BCL11A) appeared frequently represented. 8p-loss and 2p16.1-p14-gain also appeared clinically relevant and predicted significant shorter time from diagnosis to treatment (8p-loss) and overall survival (8p-loss and 2p16.1-p14-gain, P < 0.05). These observations document a highly unstable genome in 17p- CLL and suggest that additional genes outside the TP53 locus may be important for tumour behaviour.

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