PMID- 17653548 OWN - NLM STAT- MEDLINE DCOM- 20080129 LR - 20070823 IS - 1432-0584 (Electronic) IS - 0939-5555 (Linking) VI - 86 IP - 10 DP - 2007 Oct TI - Chromosomal aberrations in congenital bone marrow failure disorders--an early indicator for leukemogenesis? PG - 733-9 AB - As chromosomal instability may contribute to leukemogenesis in patients with congenital bone marrow failure (CBMF) disorders, it was the aim of this study to characterize chromosomally aberrant clones that arise during the clinical course of disease by means of R-banding and fluorescence in situ hybridization (FISH) analyses. In addition, multicolor-FISH and array-comparative genomic hybridization (CGH) were applied to characterize clonal chromosome aberrations in more detail. Between January 2004 and December 2005, we prospectively analyzed 90 samples of 73 patients with proven or suspected CBMF disorders enrolled in a German Study Network of CBMF diseases. Clonal aberrations could be identified in four of 73 patients examined. In one child with congenital thrombocytopenia, Jacobsen syndrome [del(11)(q24)c] was diagnosed, and thus a CBMF could be excluded. In a girl with Shwachman-Diamond syndrome, two independent clones, one with an isochromosome i(7)(q10), another with a complex aberrant karyotype, were identified. Simultaneously, transition into a myelodysplastic syndrome (MDS) occurred. The brother, who was also afflicted with Shwachman-Diamond syndrome, showed an isochromosome i(7q) as a single aberration. In the fourth patient with severe congenital neutropenia, an add(21)(q22) marker containing a low-level amplification of the AML1 gene was identified at the time point of transition into acute myelogenous leukemia (AML). In summary, we suggest that follow-up of patients with CBMF using chromosome and FISH analyses will be helpful for the early detection of transition into MDS or AML and thus should be an integral part of the clinical management of these patients. FAU - Gohring, G AU - Gohring G AD - Institute of Cell and Molecular Pathology, Hannover Medical School, Hannover, Germany. goehring.gudrun@mh-hannover.de FAU - Karow, A AU - Karow A FAU - Steinemann, D AU - Steinemann D FAU - Wilkens, L AU - Wilkens L FAU - Lichter, P AU - Lichter P FAU - Zeidler, C AU - Zeidler C FAU - Niemeyer, C AU - Niemeyer C FAU - Welte, K AU - Welte K FAU - Schlegelberger, B AU - Schlegelberger B LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20070725 PL - Germany TA - Ann Hematol JT - Annals of hematology JID - 9107334 RN - 0 (Core Binding Factor Alpha 2 Subunit) RN - 0 (RUNX1 protein, human) SB - IM MH - Adolescent MH - Adult MH - Case-Control Studies MH - Cell Transformation, Neoplastic/genetics MH - Child MH - Child, Preschool MH - Chromosomal Instability MH - *Chromosome Aberrations MH - Chromosomes, Human/genetics MH - Core Binding Factor Alpha 2 Subunit/*genetics MH - Female MH - Follow-Up Studies MH - Humans MH - In Situ Hybridization, Fluorescence MH - Infant MH - Infant, Newborn MH - Jacobsen Distal 11q Deletion Syndrome/complications/*genetics MH - Leukemia, Myeloid, Acute/etiology/*genetics MH - Male MH - Middle Aged MH - Myelodysplastic Syndromes/complications/congenital/*genetics MH - Neutropenia/complications/congenital/*genetics EDAT- 2007/07/27 09:00 MHDA- 2008/01/30 09:00 CRDT- 2007/07/27 09:00 PHST- 2007/04/12 00:00 [received] PHST- 2007/06/15 00:00 [accepted] PHST- 2007/07/27 09:00 [pubmed] PHST- 2008/01/30 09:00 [medline] PHST- 2007/07/27 09:00 [entrez] AID - 10.1007/s00277-007-0337-z [doi] PST - ppublish SO - Ann Hematol. 2007 Oct;86(10):733-9. doi: 10.1007/s00277-007-0337-z. Epub 2007 Jul 25.