Chromosome band 11q23 deletion predicts poor prognosis in bone marrow metastatic neuroblastoma patients without MYCN amplification.
Cancer Commun (Lond)
; 39(1): 68, 2019 11 04.
Article
in En
| MEDLINE
| ID: mdl-31685009
ABSTRACT
BACKGROUND:
Interphase fluorescence in situ hybridization (FISH) of bone marrow cells has been confirmed to be a direct and valid method to assess the v-myc avian myelocytomatosis viral oncogene neuroblastoma derived homolog (MYCN) amplification in patients with bone marrow metastatic neuroblastoma. MYCN amplification alone, however, is insufficient for pretreatment risk stratification. Chromosome band 11q23 deletion has recently been included in the risk stratification of neuroblastoma. In the present study, we aimed to evaluate the biological characteristics and prognostic impact of 11q23 deletion and MYCN amplification in patients with bone marrow metastatic neuroblastoma.METHODS:
We analyzed the MYCN and 11q23 statuses of 101 patients with bone marrow metastatic neuroblastoma using interphase FISH of bone marrow cells. We specifically compared the biological characteristics and prognostic impact of both aberrations.RESULTS:
MYCN amplification and 11q23 deletion were seen in 12 (11.9%) and 40 (39.6%) patients. The two markers were mutually exclusive. MYCN amplification occurred mainly in patients with high lactate dehydrogenase (LDH) and high neuron-specific enolase (NSE) levels (both P < 0.001), and MYCN-amplified patients had more events (tumor relapse, progression, or death) than MYCN-normal patients (P = 0.004). 11q23 deletion was associated only with age (P = 0.001). Patients with MYCN amplification had poorer outcomes than those with normal MYCN (3-year event-free survival [EFS] rate 8.3 ± 8.0% vs. 43.8 ± 8.5%, P < 0.001; 3-year overall survival [OS] rate 10.4 ± 9.7% vs. 63.5% ± 5.7%, P < 0.001). 11q23 deletion reflected a poor prognosis only for patients with normal MYCN (3-year EFS rate 34.3 ± 9.5% vs. 53.4 ± 10.3%, P = 0.037; 3-year OS rate 42.9 ± 10.4% vs. 75.9 ± 6.1%, P = 0.048). Those with both MYCN amplification and 11q23 deletion had the worst outcome (P < 0.001).CONCLUSIONS:
Chromosome band 11q23 deletion predicts poor prognosis only in bone marrow metastatic neuroblastoma patients without MYCN amplification. Combined assessment of the two markers was much superior to single-marker assessment in recognizing the patients at a high risk of disease progression.Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Thoracic Neoplasms
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Chromosomes, Human, Pair 11
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Bone Marrow Neoplasms
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N-Myc Proto-Oncogene Protein
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Head and Neck Neoplasms
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Abdominal Neoplasms
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Neuroblastoma
Type of study:
Prognostic_studies
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Risk_factors_studies
Limits:
Child
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Child, preschool
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Female
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Humans
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Infant
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Male
Language:
En
Journal:
Cancer Commun (Lond)
Year:
2019
Document type:
Article