PMID- 23265803 OWN - NLM STAT- MEDLINE DCOM- 20130228 LR - 20130108 IS - 2210-7762 (Print) VI - 205 IP - 12 DP - 2012 Dec TI - Analysis of genomic alterations in neuroblastoma by multiplex ligation-dependent probe amplification and array comparative genomic hybridization: a comparison of results. PG - 657-64 LID - S2210-7762(12)00271-2 [pii] LID - 10.1016/j.cancergen.2012.11.002 [doi] AB - In cases of neuroblastoma, recurring genetic alterations--losses of the 1p, 3p, 4p, and 11q and/or gains of 1q, 2p, and 17q chromosome arms--are currently used to define the therapeutic strategy in therapeutic protocols for low- and intermediate-risk patients. Different genome-wide analysis techniques, such as array comparative genomic hybridization (aCGH) or multiplex ligation-dependent probe amplification (MLPA), have been suggested for detecting chromosome segmental abnormalities. In this study, we compared the results of the two technologies in the analyses of the DNA of tumor samples from 91 neuroblastoma patients. Similar results were obtained with the two techniques for 75 samples (82%). In five cases (5.5%), the MLPA results were not interpretable. Discrepancies between the aCGH and MLPA results were observed in 11 cases (12%). Among the discrepancies, a 18q21.2-qter gain and 16p11.2 and 11q14.1-q14.3 losses were detected only by aCGH. The MLPA results showed that the 7p, 7q, and 14q chromosome arms were affected in six cases, while in two cases, 2p and 17q gains were observed; these results were confirmed by neither aCGH nor fluorescence in situ hybridization (FISH) analysis. Because of the higher sensitivity and specificity of genome-wide information, reasonable cost, and shorter time of aCGH analysis, we recommend the aCGH procedure for the analysis of genomic alterations in neuroblastoma. CI - Copyright (c) 2012 Elsevier Inc. All rights reserved. FAU - Combaret, Valerie AU - Combaret V AD - Centre Leon Berard, Laboratoire de Recherche Translationnelle, Lyon, France. valerie.combaret@lyon.unicancer.fr FAU - Iacono, Isabelle AU - Iacono I FAU - Brejon, Stephanie AU - Brejon S FAU - Schleiermacher, Gudrun AU - Schleiermacher G FAU - Pierron, Gaelle AU - Pierron G FAU - Couturier, Jerome AU - Couturier J FAU - Bergeron, Christophe AU - Bergeron C FAU - Blay, Jean-Yves AU - Blay JY LA - eng PT - Comparative Study PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20121221 PL - United States TA - Cancer Genet JT - Cancer genetics JID - 101539150 SB - IM MH - *Chromosome Aberrations MH - Comparative Genomic Hybridization/*methods MH - Genome, Human/*genetics MH - Humans MH - Infant MH - Multiplex Polymerase Chain Reaction/*methods MH - Neoplasm Staging MH - Neuroblastoma/*genetics/*pathology EDAT- 2012/12/26 06:00 MHDA- 2013/03/01 06:00 CRDT- 2012/12/26 06:00 PHST- 2012/03/27 00:00 [received] PHST- 2012/10/25 00:00 [revised] PHST- 2012/11/04 00:00 [accepted] PHST- 2012/12/26 06:00 [entrez] PHST- 2012/12/26 06:00 [pubmed] PHST- 2013/03/01 06:00 [medline] AID - S2210-7762(12)00271-2 [pii] AID - 10.1016/j.cancergen.2012.11.002 [doi] PST - ppublish SO - Cancer Genet. 2012 Dec;205(12):657-64. doi: 10.1016/j.cancergen.2012.11.002. Epub 2012 Dec 21.