PMID- 16756886 OWN - NLM STAT- MEDLINE DCOM- 20061026 LR - 20190917 IS - 1695-4033 (Print) IS - 1695-4033 (Linking) VI - 64 IP - 5 DP - 2006 May TI - [Genomic profile in high risk neuroblastoma by comparative genomic hybridization]. PG - 449-56 AB - Different subtypes of neuroblastoma (NB) carry associated genetic aberrations that predict their clinical course. Whole chromosome gains are usually associated with early clinical stages and good prognosis, while 1p deletion, 17q gain and MYCN amplification (MNA) are related to advanced stages and poor prognosis. High-risk neuroblastomas (NB-HR) include NB in children aged more than 1 year old, either stage 4 or any stages showing MNA except stage 1. The prognosis of NB-HR patients remains poor, despite aggressive therapy. Only MNA confers poor prognosis. Between January 2000 and February 2005, tumoral specimens from 60 patients with NB-HR were sent to the Spanish Reference Center for NB biological studies. In all cases, MYCN together with 1p36 status was analyzed by fluorescence in situ hybridization (FISH). Comparative genomic hybridization (CGH) was performed in 24 cases. Using FISH we detected 31 MNA cases including 29 with 1p36 deletion; there were 21 cases without MYCN amplification (MNNA) but 7 of these had 1p36 deletion; 8 cases showed MYCN gain (MNG) but 6 of these had 1p36 deletion. CGH showed other chromosomal alterations. Of 11 MNA cases, none had 11q loss and all of them showed 17q gain or 17 disomy. Of the 7 MNNA cases, there were 4 with 11q loss including 2 with 3p loss and all presented 17q gain or 17 disomy. The 6 MNG cases included 4 cases with 11q loss and 5 cases with 17q gain or 17 disomy. Genomic profiling by CGH in NB-HR confirms the interaction among genetic alterations, the prognostic significance of which should be evaluated to establish new treatment criteria. FAU - Noguera Salva, R AU - Noguera Salva R AD - Departamento de Patologia, Facultad de Medicina y Odontologia, Universidad de Valencia, Espana. rosa.noguer@uv.es FAU - Piqueras Franco, M AU - Piqueras Franco M FAU - Ruiz Sauri, A AU - Ruiz Sauri A FAU - Llombart-Bosch, A AU - Llombart-Bosch A FAU - Castel Sanchez, V AU - Castel Sanchez V FAU - Navarro Fos, S AU - Navarro Fos S LA - spa PT - Comparative Study PT - English Abstract PT - Journal Article PT - Research Support, Non-U.S. Gov't TT - Perfil genomico del neuroblastoma de alto riesgo mediante hibridacion genomica comparada. PL - Spain TA - An Pediatr (Barc) JT - Anales de pediatria (Barcelona, Spain : 2003) JID - 101162596 SB - IM MH - Female MH - *Genomics MH - Humans MH - *In Situ Hybridization, Fluorescence MH - Infant MH - Male MH - Neuroblastoma/*genetics MH - Risk Factors EDAT- 2006/06/08 09:00 MHDA- 2006/10/27 09:00 CRDT- 2006/06/08 09:00 PHST- 2006/06/08 09:00 [pubmed] PHST- 2006/10/27 09:00 [medline] PHST- 2006/06/08 09:00 [entrez] AID - 13087872 [pii] AID - 10.1157/13087872 [doi] PST - ppublish SO - An Pediatr (Barc). 2006 May;64(5):449-56. doi: 10.1157/13087872.