TY - JOUR
T1 - Genome-wide DNA analysis identifies recurrent imbalances predicting outcome in chronic lymphocytic leukaemia with 17p deletion
AU - Forconi, Francesco
AU - Rinaldi, Andrea
AU - Kwee, Ivo
AU - Sozzi, Elisa
AU - Raspadori, Donatella
AU - Rancoita, Paola M.V.
AU - Scandurra, Marta
AU - Rossi, Davide
AU - Deambrogi, Clara
AU - Capello, Daniela
AU - Zucca, Emanuele
AU - Marconi, Daniela
AU - Bomben, Riccardo
AU - Gattei, Valter
AU - Lauria, Francesco
AU - Gaidano, Gianluca
AU - Bertoni, Francesco
PY - 2008/11
Y1 - 2008/11
N2 - 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.
AB - 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.
KW - 17p13 deletion
KW - 250K Affymetrix
KW - Chronic lymphocytic leukaemia
KW - Genome-wide DNA profile
KW - Single nucleotide polymporphysms
KW - TP53
UR - http://www.scopus.com/inward/record.url?scp=54849430966&partnerID=8YFLogxK
U2 - 10.1111/j.1365-2141.2008.07373.x
DO - 10.1111/j.1365-2141.2008.07373.x
M3 - Article
SN - 0007-1048
VL - 143
SP - 532
EP - 536
JO - British Journal of Haematology
JF - British Journal of Haematology
IS - 4
ER -