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Abstract
MYCN gene amplification and 1p deletion in neuroblastoma patients are associated with poor prognosis and commonly used for patient’s stratification into risk groups. MYCN copy number and 1p deletion status were analyzed with multiplex ligase-dependent probe amplification (MLPA), PCR and FISH. MYCN amplification was revealed in 21 patients (17.2%) simultaneously by MLPA and PCR. In 28 cases (23.0%) 2p gain was detected. 1p deletion was revealed in 28 patients (23.0%) while concordance between PCR and MLPA achieved 95.8%, PCR and FISH - 90.9%. Mean follow-up time achieved 42 months (ranged from 1 month to 13 years). Event-free survival and overall survival in MYCN-amplified patients as well as in patients with 1p deletion were significantly lower comparing with MYCN-negative patients or patients without 1p deletion.References
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