TY - JOUR A1 - Stenzinger, Albrecht A1 - Endris, Volker A1 - Pfarr, Nicole A1 - Andrulis, Mindaugas A1 - Jöhrens, Korinna A1 - Klauschen, Frederick A1 - Siebolts, Udo A1 - Wolf, Thomas A1 - Koch, Philipp-Sebastian A1 - Schulz, Miriam A1 - Hartschuh, Wolfgang A1 - Goerdt, Sergij A1 - Lennerz, Jochen K. A1 - Wickenhauser, Claudia A1 - Klapper, Wolfram A1 - Anagnostopoulos, Ioannis A1 - Weichert, Wilko T1 - Targeted ultra-deep sequencing reveals recurrent and mutually exclusive mutations of cancer genes in blastic plasmacytoid dendritic cell neoplasm T2 - Oncotarget N2 - Blastic plasmacytoid dendritic cell neoplasm (BPDCN) is a rare haematopoietic malignancy characterized by dismal prognosis and overall poor therapeutic response. Since the biology of BPDCN is barely understood, our study aims to shed light on the genetic make-up of these highly malignant tumors. Using targeted high-coverage massive parallel sequencing, we investigated 50 common cancer genes in 33 BPDCN samples. We detected point mutations in NRAS (27.3% of cases), ATM (21.2%), MET, KRAS, IDH2, KIT (9.1% each), APC and RB1 (6.1% each), as well as in VHL, BRAF, MLH1, TP53 and RET (3% each). Moreover, NRAS, KRAS and ATM mutations were found to be mutually exclusive and we observed recurrent mutations in NRAS, IDH2, APC and ATM. CDKN2A deletions were detected in 27.3% of the cases followed by deletions of RB1 (9.1%), PTEN and TP53 (3% each). The mutual exclusive distribution of some mutations may point to different subgroups of BPDCN whose biological significance remains to be explored. KW - blastic plasmacytoid dendritic cell neoplasm KW - BPDCN KW - recurrent mutations KW - mutually exclusive mutations KW - next generation sequencing KW - ATM KW - KRAS KW - NRAS KW - CDKN2A Y1 - 2014 UR - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/35548 UR - https://nbn-resolving.org/urn:nbn:de:hebis:30:3-355487 UR - http://www.impactjournals.com/oncotarget/misc/linkedout.php?pii=2223 SN - 1949-2553 N1 - This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. VL - 5 IS - 15 SP - 6404 EP - 6413 PB - Impact Journals LLC CY - [S.l.] ER -