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

Francesco Forconi, 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

Risultato della ricerca: Contributo su rivistaArticolo in rivistapeer review

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.

Lingua originaleInglese
pagine (da-a)532-536
Numero di pagine5
RivistaBritish Journal of Haematology
Volume143
Numero di pubblicazione4
DOI
Stato di pubblicazionePubblicato - nov 2008

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