@article{WegertVokuhlCollordetal.2018, author = {Wegert, Jenny and Vokuhl, Christian and Collord, Grace and Del Castillo Velasco-Herrera, Martin and Farndon, Sarah J. and Guzzo, Charlotte and Jorgensen, Mette and Anderson, John and Slater, Olga and Duncan, Catriona and Bausenwein, Sabrina and Streitenberger, Heike and Ziegler, Barbara and Furtw{\"a}ngler, Rhoikos and Graf, Norbert and Stratton, Michael R. and Campbell, Peter J. and Jones, David TW and Koelsche, Christian and Pfister, Stefan M. and Mifsud, William and Sebire, Neil and Sparber-Sauer, Monika and Koscielniak, Ewa and Rosenwald, Andreas and Gessler, Manfred and Behjati, Sam}, title = {Recurrent intragenic rearrangements of EGFR and BRAF in soft tissue tumors of infants}, series = {Nature Communications}, volume = {9}, journal = {Nature Communications}, doi = {10.1038/s41467-018-04650-6}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-233446}, year = {2018}, abstract = {Soft tissue tumors of infancy encompass an overlapping spectrum of diseases that pose unique diagnostic and clinical challenges. We studied genomes and transcriptomes of cryptogenic congenital mesoblastic nephroma (CMN), and extended our findings to five anatomically or histologically related soft tissue tumors: infantile fibrosarcoma (IFS), nephroblastomatosis, Wilms tumor, malignant rhabdoid tumor, and clear cell sarcoma of the kidney. A key finding is recurrent mutation of EGFR in CMN by internal tandem duplication of the kinase domain, thus delineating CMN from other childhood renal tumors. Furthermore, we identify BRAF intragenic rearrangements in CMN and IFS. Collectively these findings reveal novel diagnostic markers and therapeutic strategies and highlight a prominent role of isolated intragenic rearrangements as drivers of infant tumors.}, language = {en} } @article{LopezKleinheinzAukemaetal.2019, author = {L{\´o}pez, Cristina and Kleinheinz, Kortine and Aukema, Sietse M. and Rohde, Marius and Bernhart, Stephan H. and H{\"u}bschmann, Daniel and Wagener, Rabea and Toprak, Umut H. and Raimondi, Francesco and Kreuz, Markus and Waszak, Sebastian M. and Huang, Zhiqin and Sieverling, Lina and Paramasivam, Nagarajan and Seufert, Julian and Sungalee, Stephanie and Russell, Robert B. and Bausinger, Julia and Kretzmer, Helene and Ammerpohl, Ole and Bergmann, Anke K. and Binder, Hans and Borkhardt, Arndt and Brors, Benedikt and Claviez, Alexander and Doose, Gero and Feuerbach, Lars and Haake, Andrea and Hansmann, Martin-Leo and Hoell, Jessica and Hummel, Michael and Korbel, Jan O. and Lawerenz, Chris and Lenze, Dido and Radlwimmer, Bernhard and Richter, Julia and Rosenstiel, Philip and Rosenwald, Andreas and Schilhabel, Markus B. and Stein, Harald and Stilgenbauer, Stephan and Stadler, Peter F. and Szczepanowski, Monika and Weniger, Marc A. and Zapatka, Marc and Eils, Roland and Lichter, Peter and Loeffler, Markus and M{\"o}ller, Peter and Tr{\"u}mper, Lorenz and Klapper, Wolfram and Hoffmann, Steve and K{\"u}ppers, Ralf and Burkhardt, Birgit and Schlesner, Matthias and Siebert, Reiner}, title = {Genomic and transcriptomic changes complement each other in the pathogenesis of sporadic Burkitt lymphoma}, series = {Nature Communications}, volume = {10}, journal = {Nature Communications}, organization = {ICGC MMML-Seq Consortium}, doi = {10.1038/s41467-019-08578-3}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-237281}, year = {2019}, abstract = {Burkitt lymphoma (BL) is the most common B-cell lymphoma in children. Within the International Cancer Genome Consortium (ICGC), we performed whole genome and transcriptome sequencing of 39 sporadic BL. Here, we unravel interaction of structural, mutational, and transcriptional changes, which contribute to MYC oncogene dysregulation together with the pathognomonic IG-MYC translocation. Moreover, by mapping IGH translocation breakpoints, we provide evidence that the precursor of at least a subset of BL is a B-cell poised to express IGHA. We describe the landscape of mutations, structural variants, and mutational processes, and identified a series of driver genes in the pathogenesis of BL, which can be targeted by various mechanisms, including IG-non MYC translocations, germline and somatic mutations, fusion transcripts, and alternative splicing.}, language = {en} } @article{WaszakNorthcottBuchhalteretal.2018, author = {Waszak, Sebastian M and Northcott, Paul A and Buchhalter, Ivo and Robinson, Giles W and Sutter, Christian and Groebner, Susanne and Grund, Kerstin B and Brugi{\`e}res, Laurence and Jones, David T W and Pajtler, Kristian W and Morrissy, A Sorana and Kool, Marcel and Sturm, Dominik and Chavez, Lukas and Ernst, Aurelie and Brabetz, Sebastian and Hain, Michael and Zichner, Thomas and Segura-Wang, Maia and Weischenfeldt, Joachim and Rausch, Tobias and Mardin, Balca R and Zhou, Xin and Baciu, Cristina and Lawerenz, Christian and Chan, Jennifer A and Varlet, Pascale and Guerrini-Rousseau, Lea and Fults, Daniel W and Grajkowska, Wiesława and Hauser, Peter and Jabado, Nada and Ra, Young-Shin and Zitterbart, Karel and Shringarpure, Suyash S and De La Vega, Francisco M and Bustamante, Carlos D and Ng, Ho-Keung and Perry, Arie and MacDonald, Tobey J and Driever, Pablo Hern{\´a}iz and Bendel, Anne E and Bowers, Daniel C and McCowage, Geoffrey and Chintagumpala, Murali M and Cohn, Richard and Hassall, Timothy and Fleischhack, Gudrun and Eggen, Tone and Wesenberg, Finn and Feychting, Maria and Lannering, Birgitta and Sch{\"u}z, Joachim and Johansen, Christoffer and Andersen, Tina V and R{\"o}{\"o}sli, Martin and Kuehni, Claudia E and Grotzer, Michael and Kjaerheim, Kristina and Monoranu, Camelia M and Archer, Tenley C and Duke, Elizabeth and Pomeroy, Scott L and Shelagh, Redmond and Frank, Stephan and Sumerauer, David and Scheurlen, Wolfram and Ryzhova, Marina V and Milde, Till and Kratz, Christian P and Samuel, David and Zhang, Jinghui and Solomon, David A and Marra, Marco and Eils, Roland and Bartram, Claus R and von Hoff, Katja and Rutkowksi, Stefan and Ramaswamy, Vijay and Gilbertson, Richard J and Korshunov, Andrey and Taylor, Michael D and Lichter, Peter and Malkin, David and Gajjar, Amar and Korbel, Jan O and Pfister, Stefan M}, title = {Spectrum and prevalence of genetic predisposition in medulloblastoma: a retrospective genetic study and prospective validation in a clinical trial cohort}, series = {The Lancet Oncology}, volume = {19}, journal = {The Lancet Oncology}, doi = {10.1016/S1470-2045(18)30242-0}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-233425}, pages = {785-798}, year = {2018}, abstract = {Background Medulloblastoma is associated with rare hereditary cancer predisposition syndromes; however, consensus medulloblastoma predisposition genes have not been defined and screening guidelines for genetic counselling and testing for paediatric patients are not available. We aimed to assess and define these genes to provide evidence for future screening guidelines. Methods In this international, multicentre study, we analysed patients with medulloblastoma from retrospective cohorts (International Cancer Genome Consortium [ICGC] PedBrain, Medulloblastoma Advanced Genomics International Consortium [MAGIC], and the CEFALO series) and from prospective cohorts from four clinical studies (SJMB03, SJMB12, SJYC07, and I-HIT-MED). Whole-genome sequences and exome sequences from blood and tumour samples were analysed for rare damaging germline mutations in cancer predisposition genes. DNA methylation profiling was done to determine consensus molecular subgroups: WNT (MBWNT), SHH (MBSHH), group 3 (MBGroup3), and group 4 (MBGroup4). Medulloblastoma predisposition genes were predicted on the basis of rare variant burden tests against controls without a cancer diagnosis from the Exome Aggregation Consortium (ExAC). Previously defined somatic mutational signatures were used to further classify medulloblastoma genomes into two groups, a clock-like group (signatures 1 and 5) and a homologous recombination repair deficiency-like group (signatures 3 and 8), and chromothripsis was investigated using previously established criteria. Progression-free survival and overall survival were modelled for patients with a genetic predisposition to medulloblastoma. Findings We included a total of 1022 patients with medulloblastoma from the retrospective cohorts (n=673) and the four prospective studies (n=349), from whom blood samples (n=1022) and tumour samples (n=800) were analysed for germline mutations in 110 cancer predisposition genes. In our rare variant burden analysis, we compared these against 53 105 sequenced controls from ExAC and identified APC, BRCA2, PALB2, PTCH1, SUFU, and TP53 as consensus medulloblastoma predisposition genes according to our rare variant burden analysis and estimated that germline mutations accounted for 6\% of medulloblastoma diagnoses in the retrospective cohort. The prevalence of genetic predispositions differed between molecular subgroups in the retrospective cohort and was highest for patients in the MBSHH subgroup (20\% in the retrospective cohort). These estimates were replicated in the prospective clinical cohort (germline mutations accounted for 5\% of medulloblastoma diagnoses, with the highest prevalence [14\%] in the MBSHH subgroup). Patients with germline APC mutations developed MBWNT and accounted for most (five [71\%] of seven) cases of MBWNT that had no somatic CTNNB1 exon 3 mutations. Patients with germline mutations in SUFU and PTCH1 mostly developed infant MBSHH. Germline TP53 mutations presented only in childhood patients in the MBSHH subgroup and explained more than half (eight [57\%] of 14) of all chromothripsis events in this subgroup. Germline mutations in PALB2 and BRCA2 were observed across the MBSHH, MBGroup3, and MBGroup4 molecular subgroups and were associated with mutational signatures typical of homologous recombination repair deficiency. In patients with a genetic predisposition to medulloblastoma, 5-year progression-free survival was 52\% (95\% CI 40-69) and 5-year overall survival was 65\% (95\% CI 52-81); these survival estimates differed significantly across patients with germline mutations in different medulloblastoma predisposition genes. Interpretation Genetic counselling and testing should be used as a standard-of-care procedure in patients with MBWNT and MBSHH because these patients have the highest prevalence of damaging germline mutations in known cancer predisposition genes. We propose criteria for routine genetic screening for patients with medulloblastoma based on clinical and molecular tumour characteristics.}, language = {en} } @phdthesis{Pickert2024, author = {Pickert, Julia Felicia}, title = {Untersuchungen zum Einfluss des Insulin-like growth factor Rezeptors auf Signalnetzwerke im Multiplen Myelom}, doi = {10.25972/OPUS-36981}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-369815}, school = {Universit{\"a}t W{\"u}rzburg}, year = {2024}, abstract = {Das MM ist eine maligne Erkrankung, die von biologischer und klinischer Heterogenit{\"a}t gepr{\"a}gt ist. Sie ist durch die monoklonale Vermehrung von Plasmazellen charakterisiert. In vorangegangenen Studien wurde eine H{\"a}ufung von Mutationen in RTK nachgewiesen. Diese gingen mit einem negativen Einfluss auf das {\"U}berleben von MM Patientinnen und Patienten einher. Im Rahmen dieser Arbeit wurde der Einfluss des IGF1R an HMZL mittels siRNA-vermitteltem IGF1R-Knockdown untersucht und dessen Effekt auf das Signalnetzwerk mittels Western Blot Analysen ermittelt. Um die Heterogenit{\"a}t des MM besser abzubilden, wurden sechs verschiedenen HMZL ausgew{\"a}hlt. Der IGF1R-Knockdown war in allen HMZL sowohl anhand der Reduktion der IGF1R-Expression als auch der IGF1R-Aktivierung deutlich nachweisbar. Stellvertretend f{\"u}r den PI3K/AKT Signalweg wurde die AKT-Aktivierung untersucht, welche nach IGF1R-Knockdown in allen Linien abnahm. Im Ras/Raf/MEK/ERK Signalweg fiel eine deutliche Reduktion der ERK1/2- und MEK-Aktivierung in den von PCL stammenden HMZL L-363 und MM.1S, sowie in JJN-3 mit der Hochrisikotranslokation t(14;16) auf. Entsprechend der Beobachtungen f{\"u}r die AKT-Aktivierung, nahm die PYK2-Aktivierung in allen HMZL nach IGF1R-Knockdown ab, was auf ein Zusammenspiel von IGF1R, PYK2 und AKT in allen HMZL hindeutet. Zuk{\"u}nftige Untersuchungen werden zeigen, ob IGF1R Inhibitoren alleine oder in Kombination mit z.B. AKT, PYK2 oder Proteasomen-Inhibitoren in bestimmten molekularen MM Subgruppen ein effektives therapeutisches Ziel sind.}, subject = {Plasmozytom}, language = {de} }