Abstract:
:We have studied the occurrence and association of 11q deletions with other chromosomal imbalances in Stage 4 neuroblastomas. To this purpose we have performed comparative genomic hybridization (CGH) analysis on 50 Stage 4 neuroblastomas and these data were analyzed together with those from 33 previously published cases. We observed a high incidence of 11q deletion in Stage 4 neuroblastoma without MYCN amplification (59%) whereas 11q loss was only observed in 15% of neuroblastomas with MYCN-amplification (p = 0.0002) or 11% of cases with 1p deletion detected by CGH (p = 0.0001). In addition, 11q loss showed significant positive correlation with 3p loss (p = 0.0002). Event-free survival was poor and not significantly different for patients with or without 11q deletion. Our study provides further evidence that Stage 4 neuroblastomas with 11q deletions represent a distinct genetic subgroup that typically shows no MYCN-amplification nor 1p deletion. Moreover, it shows that neuroblastomas with 11q deletion also often present 3p deletion. This genetic subgroup shows a similar poor prognosis as MYCN amplified 4 neuroblastomas.
journal_name
Int J Cancerjournal_title
International journal of cancerauthors
Plantaz D,Vandesompele J,Van Roy N,Lastowska M,Bown N,Combaret V,Favrot MC,Delattre O,Michon J,Bénard J,Hartmann O,Nicholson JC,Ross FM,Brinkschmidt C,Laureys G,Caron H,Matthay KK,Feuerstein BG,Speleman Fdoi
10.1002/1097-0215(200002)9999:9999<::aid-ijc1114>3keywords:
subject
Has Abstractpub_date
2001-03-01 00:00:00pages
680-6issue
5eissn
0020-7136issn
1097-0215pii
10.1002/1097-0215(200002)9999:9999<::AID-IJC1114>3journal_volume
91pub_type
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