title: Molecular analysis of desmoid tumors with a high-density single-nucleotide polymorphism array identifies new molecular candidate lesions creator: Erben, Philipp creator: Nowak, Daniel creator: Sauer, Christian creator: Ströbel, Philipp creator: Hofmann, Wolf-Karsten creator: Hofheinz, Ralf-Dieter creator: Hohenberger, Peter creator: Kasper, Bernd subject: ddc-610 subject: 610 Medical sciences Medicine description: 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. publisher: S. Karger AG date: 2012 type: Article type: info:eu-repo/semantics/article type: NonPeerReviewed format: application/pdf identifier: https://archiv.ub.uni-heidelberg.de/volltextserverhttps://archiv.ub.uni-heidelberg.de/volltextserver/17825/1/ONK2012035011684.pdf identifier: DOI:10.11588/heidok.00017825 identifier: urn:nbn:de:bsz:16-heidok-178258 identifier: Erben, Philipp ; Nowak, Daniel ; Sauer, Christian ; Ströbel, Philipp ; Hofmann, Wolf-Karsten ; Hofheinz, Ralf-Dieter ; Hohenberger, Peter ; Kasper, Bernd (2012) Molecular analysis of desmoid tumors with a high-density single-nucleotide polymorphism array identifies new molecular candidate lesions. Onkologie, 35 (11). pp. 684-688. ISSN 0378-584X relation: https://archiv.ub.uni-heidelberg.de/volltextserver/17825/ rights: info:eu-repo/semantics/openAccess rights: http://archiv.ub.uni-heidelberg.de/volltextserver/help/license_urhg.html language: eng