1. Spectrum and prevalence of genetic predisposition in medulloblastoma: a retrospective genetic study and prospective validation in a clinical trial cohort
- Author
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Waszak, SM, Northcott, PA, Buchhalter, I, Robinson, GW, Sutter, C, Groebner, S, Grund, KB, Brugières, L, Jones, DTW, Pajtler, KW, Morrissy, AS, Kool, M, Sturm, D, Chavez, L, Ernst, A, Brabetz, S, Hain, M, Zichner, T, Segura-Wang, M, Weischenfeldt, J, Rausch, T, Mardin, BR, Zhou, X, Baciu, C, Lawerenz, C, Chan, JA, Varlet, P, Guerrini-Rousseau, L, Fults, DW, Grajkowska, W, Hauser, P, Jabado, N, Ra, YS, Zitterbart, K, Shringarpure, SS, De La Vega, FM, Bustamante, CD, Ng, HK, Perry, A, MacDonald, TJ, Hernáiz Driever, P, Bendel, AE, Bowers, DC, McCowage, G, Chintagumpala, MM, Cohn, R ; https://orcid.org/0000-0002-2400-1353, Hassall, T, Fleischhack, G, Eggen, T, Wesenberg, F, Feychting, M, Lannering, B, Schüz, J, Johansen, C, Andersen, TV, Röösli, M, Kuehni, CE, Grotzer, M, Kjaerheim, K, Monoranu, CM, Archer, TC, Duke, E, Pomeroy, SL, Shelagh, R, Frank, S, Sumerauer, D, Scheurlen, W, Ryzhova, MV, Milde, T, Kratz, CP, Samuel, D, Zhang, J, Solomon, DA, Marra, M, Eils, R, Bartram, CR, von Hoff, K, Rutkowski, S, Ramaswamy, V, Gilbertson, RJ, Korshunov, A, Taylor, MD, Lichter, P, Malkin, D, Gajjar, A, Korbel, JO, Pfister, SM, Waszak, SM, Northcott, PA, Buchhalter, I, Robinson, GW, Sutter, C, Groebner, S, Grund, KB, Brugières, L, Jones, DTW, Pajtler, KW, Morrissy, AS, Kool, M, Sturm, D, Chavez, L, Ernst, A, Brabetz, S, Hain, M, Zichner, T, Segura-Wang, M, Weischenfeldt, J, Rausch, T, Mardin, BR, Zhou, X, Baciu, C, Lawerenz, C, Chan, JA, Varlet, P, Guerrini-Rousseau, L, Fults, DW, Grajkowska, W, Hauser, P, Jabado, N, Ra, YS, Zitterbart, K, Shringarpure, SS, De La Vega, FM, Bustamante, CD, Ng, HK, Perry, A, MacDonald, TJ, Hernáiz Driever, P, Bendel, AE, Bowers, DC, McCowage, G, Chintagumpala, MM, Cohn, R ; https://orcid.org/0000-0002-2400-1353, Hassall, T, Fleischhack, G, Eggen, T, Wesenberg, F, Feychting, M, Lannering, B, Schüz, J, Johansen, C, Andersen, TV, Röösli, M, Kuehni, CE, Grotzer, M, Kjaerheim, K, Monoranu, CM, Archer, TC, Duke, E, Pomeroy, SL, Shelagh, R, Frank, S, Sumerauer, D, Scheurlen, W, Ryzhova, MV, Milde, T, Kratz, CP, Samuel, D, Zhang, J, Solomon, DA, Marra, M, Eils, R, Bartram, CR, von Hoff, K, Rutkowski, S, Ramaswamy, V, Gilbertson, RJ, Korshunov, A, Taylor, MD, Lichter, P, Malkin, D, Gajjar, A, Korbel, JO, and Pfister, SM
- 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 (MB WNT ), SHH (MB SHH ), group 3 (MB Group3 ), and group 4 (MB Group4 ). 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 co
- Published
- 2018