Oncogene aberrations drive medulloblastoma progression, not initiation

Despite recent advances in understanding disease biology, treatment of group 3/4 medulloblastoma remains a therapeutic challenge in paediatric neuro-oncology1. Bulk-omics approaches have identified considerable intertumoural heterogeneity in group 3/4 medulloblastoma, including the presence of clear...

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Main Authors: Okonechnikov, Konstantin (Author) , Joshi, Piyush (Author) , Körber, Verena (Author) , Rademacher, Anne (Author) , Bortolomeazzi, Michele (Author) , Mallm, Jan-Philipp (Author) , Vaillant, Jan (Author) , da Silva, Patricia Benites Goncalves (Author) , Statz, Britta (Author) , Sepp, Mari (Author) , Sarropoulos, Ioannis (Author) , Yamada, Tetsuya (Author) , Wittmann, Andrea (Author) , Schramm, Kathrin (Author) , Blattner-Johnson, Mirjam (Author) , Fiesel, Petra (Author) , Jones, Barbara Christine (Author) , Jäger, Natalie (Author) , Milde, Till (Author) , Pajtler, Kristian Wilfried (Author) , Tilburg, Cornelis M. van (Author) , Witt, Olaf (Author) , Bochennek, Konrad (Author) , Weber, Katharina Johanna (Author) , Nonnenmacher, Lisa (Author) , Reimann, Christian (Author) , Ghasemi, David R. (Author) , Schüller, Ulrich (Author) , Mynarek, Martin (Author) , Rutkowski, Stefan (Author) , Jones, David T. W. (Author) , Korshunov, Andrey (Author) , Rippe, Karsten (Author) , Westermann, Frank (Author) , Thongjuea, Supat (Author) , Höfer, Thomas (Author) , Kaessmann, Henrik (Author) , Kutscher, Lena (Author) , Pfister, Stefan (Author)
Format: Article (Journal)
Language:English
Published: 07 May 2025
In: Nature
Year: 2025, Volume: 642, Issue: 8069, Pages: 1062-1072
ISSN:1476-4687
DOI:10.1038/s41586-025-08973-5
Online Access:Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1038/s41586-025-08973-5
Verlag, lizenzpflichtig, Volltext: https://www.nature.com/articles/s41586-025-08973-5
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Author Notes:Konstantin Okonechnikov, Piyush Joshi, Verena Körber, Anne Rademacher, Michele Bortolomeazzi, Jan-Philipp Mallm, Jan Vaillant, Patricia Benites Goncalves da Silva, Britta Statz, Mari Sepp, Ioannis Sarropoulos, Tetsuya Yamada, Andrea Wittmann, Kathrin Schramm, Mirjam Blattner-Johnson, Petra Fiesel, Barbara Jones, Natalie Jäger, Till Milde, Kristian W. Pajtler, Cornelis M. van Tilburg, Olaf Witt, Konrad Bochennek, Katharina Johanna Weber, Lisa Nonnenmacher, Christian Reimann, David R. Ghasemi, Ulrich Schüller, Martin Mynarek, Stefan Rutkowski, David T. W. Jones, Andrey Korshunov, Karsten Rippe, Frank Westermann, Supat Thongjuea, Thomas Höfer, Henrik Kaessmann, Lena M. Kutscher, Stefan M. Pfister

MARC

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245 1 0 |a Oncogene aberrations drive medulloblastoma progression, not initiation  |c Konstantin Okonechnikov, Piyush Joshi, Verena Körber, Anne Rademacher, Michele Bortolomeazzi, Jan-Philipp Mallm, Jan Vaillant, Patricia Benites Goncalves da Silva, Britta Statz, Mari Sepp, Ioannis Sarropoulos, Tetsuya Yamada, Andrea Wittmann, Kathrin Schramm, Mirjam Blattner-Johnson, Petra Fiesel, Barbara Jones, Natalie Jäger, Till Milde, Kristian W. Pajtler, Cornelis M. van Tilburg, Olaf Witt, Konrad Bochennek, Katharina Johanna Weber, Lisa Nonnenmacher, Christian Reimann, David R. Ghasemi, Ulrich Schüller, Martin Mynarek, Stefan Rutkowski, David T. W. Jones, Andrey Korshunov, Karsten Rippe, Frank Westermann, Supat Thongjuea, Thomas Höfer, Henrik Kaessmann, Lena M. Kutscher, Stefan M. Pfister 
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520 |a Despite recent advances in understanding disease biology, treatment of group 3/4 medulloblastoma remains a therapeutic challenge in paediatric neuro-oncology1. Bulk-omics approaches have identified considerable intertumoural heterogeneity in group 3/4 medulloblastoma, including the presence of clear single-gene oncogenic drivers in only a subset of cases, whereas in most cases, large-scale copy number aberrations prevail2,3. However, intratumoural heterogeneity, the role of oncogene aberrations, and broad copy number variation in tumour evolution and treatment resistance remain poorly understood. To dissect this interplay, we used single-cell technologies (single-nucleus RNA sequencing (snRNA-seq), single-nucleus assay for transposase-accessible chromatin with high-throughput sequencing (snATAC-seq) and spatial transcriptomics) on a cohort of group 3/4 medulloblastoma with known alterations in the oncogenes MYC, MYCN and PRDM6. We show that large-scale chromosomal aberrations are early tumour-initiating events, whereas the single-gene oncogenic events arise late and are typically subclonal, but MYC can become clonal upon disease progression to drive further tumour development and therapy resistance. Spatial transcriptomics shows that the subclones are mostly interspersed across tumour tissue, but clear segregation is also present. Using a population genetics model, we estimate medulloblastoma initiation in the cerebellar unipolar brush cell lineage starting from the first gestational trimester. Our findings demonstrate how single-cell technologies can be applied for early detection and diagnosis of this fatal disease. 
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