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- W2084942156 abstract "To establish the significance of chromosome 17 aberrations in the biology of neuroblastomas, the fresh-frozen material of 53 primary neuroblastomas (average patient age: 20.8 months; stage 1 or 2: n = 10; stage 3: n = 10; stage 4: n = 10; stage 4s: n = 23) was studied by means of comparative genomic hybridization (CGH). Follow-up data were available for 52 of 53 cases studied (average follow-up period: 26.4 months). Except for one, all cases had previously been analyzed for MYCN status (semiquantitative Southern blot analysis). Studies of LOH 1p36 (VNTR-PCR) had been performed on 28 of 53 cases.Chromosome 17 gains were detected in 46 of 53 (86.8%) cases. Whole chromosome gains were mostly restricted to localized tumors (stage 1 or 2: 9 of 10 cases; stage 4s:19 of 23; stage 3: 2 of 10; stage 4:0 of 10 cases), whereas distal 17 gains were significantly associated with clinically advanced tumor stages and patients aged over 1 year at diagnosis. Univariate analyses revealed a statistically significant correlation of distal 17q gains with overall survival (P< 0.01, MYCN amplification: P< 0.01; 1p deletion: P< 0.01) and an elevated recurrency rate (17q: P= 0.02, MYCN amplification: P = 0.05; 1p deletion P= 0.3). There was a strong coincidence of distal 17q gains and 1p deletion or MYCN amplification (P < 0.01).Our data indicate that distal chromosome 17q gains are of major prognostic relevance for neuroblastoma patients. However, studies on a larger series of tumors have to be performed to assess whether or not these alterations are independent prognostic markers of a poor clinical outcome." @default.
- W2084942156 created "2016-06-24" @default.
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- W2084942156 date "2001-01-01" @default.
- W2084942156 modified "2023-10-16" @default.
- W2084942156 title "Distal chromosome 17 gains in neuroblastomas detected by comparative genomic hybridization (CGH) are associated with a poor clinical outcome" @default.
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- W2084942156 doi "https://doi.org/10.1002/1096-911x(20010101)36:1<11::aid-mpo1004>3.0.co;2-m" @default.
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