PMID- 21484798 OWN - NLM STAT- MEDLINE DCOM- 20120210 LR - 20191210 IS - 1097-0215 (Electronic) IS - 0020-7136 (Linking) VI - 130 IP - 5 DP - 2012 Mar 1 TI - Isolation of disseminated neuroblastoma cells from bone marrow aspirates for pretreatment risk assessment by array comparative genomic hybridization. PG - 1098-108 LID - 10.1002/ijc.26133 [doi] AB - In neuroblastoma, tumor biopsies are used for prognostic evaluation and risk assessment by molecular genetic analyses such as fluorescence in situ hybridization (FISH) and array comparative genomic hybridization (array CGH). Analysis of primary tumors by array CGH can be hampered by the lack of sufficient tumor cells due to small biopsy size or availability of invaded bone marrow only. Given the importance of accurate assessment of genetic alterations in the diagnostic work-up of patients with neuroblastoma, we evaluated the possibility to analyze bone marrow metastases in patients with disseminated disease. Disseminated neuroblastoma cells were isolated from bone marrow aspirates by using either laser capture microdissection (LCM) or magnetic activated cell sorting (MACS). The array CGH profiles of these isolated metastases were compared to array CGH profiles and/or FISH data of the corresponding primary tumor. Here, we show that the major recurrent DNA copy number alterations detected in primary neuroblastoma tumors (i.e., 1p, 3p and 11q deletion, 17q gain and MYCN amplification) can be detected, with high sensitivity and specificity, in the disseminated neuroblastoma cells isolated from the bone marrow aspirates, using an array platform with high coverage for these regions. Moreover, we demonstrate that for archived material, for example, for retrospective studies, LCM is the method of choice, while for fresh bone marrow aspirates, acquired at the time of diagnosis, MACS is superior. CI - Copyright (c) 2011 UICC. FAU - Vandewoestyne, Mado AU - Vandewoestyne M AD - Faculty of Pharmaceutical Sciences, Laboratory of Pharmaceutical Biotechnology, Ghent University, Ghent, Belgium. mado.vandewoestyne@ugent.be. FAU - Kumps, Candy AU - Kumps C FAU - Swerts, Katrien AU - Swerts K FAU - Menten, Bjorn AU - Menten B FAU - Lammens, Tim AU - Lammens T FAU - Philippe, Jan AU - Philippe J FAU - De Preter, Katleen AU - De Preter K FAU - Laureys, Genevieve AU - Laureys G FAU - Van Roy, Nadine AU - Van Roy N FAU - Speleman, Frank AU - Speleman F FAU - Deforce, Dieter AU - Deforce D LA - eng PT - Comparative Study PT - Evaluation Study PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20110609 PL - United States TA - Int J Cancer JT - International journal of cancer JID - 0042124 SB - IM MH - Bone Marrow/*pathology MH - Bone Marrow Neoplasms/diagnosis/*secondary MH - *Comparative Genomic Hybridization MH - Flow Cytometry MH - Humans MH - Laser Capture Microdissection MH - Neuroblastoma/diagnosis/*pathology EDAT- 2011/04/13 06:00 MHDA- 2012/02/11 06:00 CRDT- 2011/04/13 06:00 PHST- 2010/10/14 00:00 [received] PHST- 2011/03/15 00:00 [accepted] PHST- 2011/04/13 06:00 [entrez] PHST- 2011/04/13 06:00 [pubmed] PHST- 2012/02/11 06:00 [medline] AID - 10.1002/ijc.26133 [doi] PST - ppublish SO - Int J Cancer. 2012 Mar 1;130(5):1098-108. doi: 10.1002/ijc.26133. Epub 2011 Jun 9.