TY - JOUR IS - 11 AV - public PB - S. Karger AG VL - 35 ID - heidok17825 EP - 688 JF - Onkologie N2 - Background: Desmoid tumors are neoplastic proliferations of connective tissues. The mutation status of the gene coding for catenin (cadherin-associated protein) beta 1 (CTNNB1) and trisomy 8 on the chromosomal level have been described to have prognostic relevance. Patients and Methods: In order to elucidate new molecular mechanisms underlying these tumors, we carried out a molecular analysis with a genome-wide human high-density single-nucleotide polymorphism (SNP) array, in 9 patients. Results: Single samples showed numerical aberrations on chromosomes (Chrs) 20 and 6 with either trisomy 20 or monosomy 6. No trisomy 8 could be detected. Recurrent heterozygous deletions were found in Chr 5q (including the APC gene locus, n = 3) and Chr 8p23 (n = 4, containing coding regions for the potential tumor suppressor gene CSMD1). This novel deletion in 8p23 showed an association with local recurrence. In addition, structural chromosomal changes (gain of Chrs 8 and 20) were found in a minority of cases. Conclusion: The genomic alteration affecting the candidate gene CSMD1 could be important in the development of desmoid tumors. UR - https://archiv.ub.uni-heidelberg.de/volltextserver/17825/ SP - 684 A1 - Erben, Philipp A1 - Nowak, Daniel A1 - Sauer, Christian A1 - Ströbel, Philipp A1 - Hofmann, Wolf-Karsten A1 - Hofheinz, Ralf-Dieter A1 - Hohenberger, Peter A1 - Kasper, Bernd SN - 0378-584X TI - Molecular analysis of desmoid tumors with a high-density single-nucleotide polymorphism array identifies new molecular candidate lesions Y1 - 2012/// ER -