Abstract
Many genes that drive normal cellular development also contribute to oncogenesis. Medulloblastoma (MB) tumors likely arise from neuronal progenitors in the cerebellum, and we hypothesized that the heterogeneity observed in MBs with sonic hedgehog (SHH) activation could be due to differences in developmental pathways. To investigate this question, here we perform single-nucleus RNA sequencing on highly differentiated SHH MBs with extensively nodular histology and observed malignant cells resembling each stage of canonical granule neuron development. Through innovative computational approaches, we connect these results to published datasets and find that some established molecular subtypes of SHH MB appear arrested at different developmental stages. Additionally, using multiplexed proteomic imaging and MALDI imaging mass spectrometry, we identify distinct histological and metabolic profiles for highly differentiated tumors. Our approaches are applicable to understanding the interplay between heterogeneity and differentiation in other cancers and can provide important insights for the design of targeted therapies.
Original language | English (US) |
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Article number | 270 |
Journal | Nature communications |
Volume | 15 |
Issue number | 1 |
DOIs | |
State | Published - Dec 2024 |
Funding
This study was funded by U01-CA184898 (E.F, J.P.M., S.L.P.), U01-CA253547 (J.P.M., E.F., R.W.R.), R01-NS089076 (E.F.), P50-HD105351 (S.L.P.), R35-NS122339 (R.W.R.), U24-CA220341 (J.P.M.), R01-NS106155 (M.D.T.), R01-CA159859 (M.D.T.), R01-CA255369 (M.D.T.), SU2C-AACR-DT1113 (M.D.T.), SU2C-AACR-DT-19-15 (M.D.T.), SU2C - Convergence 3.14 (S.M.D.), M.I.T. Takeda Fellowship (M.P.G.), Robert J. Arceci Innovation Award from St. Baldrick’s Foundation (OA), PEDIAC consortium, INCA_15670 (OA), and INCa PRTK-19-027 (CD/OA). Additionally, M.D.T. is supported by The Pediatric Brain Tumour Foundation, The Terry Fox Research Institute, The Canadian Institutes of Health Research, The Cure Search Foundation, Matthew Larson Foundation (IronMatt), b.r.a.i.n.child, Meagan’s Walk, SWIFTY Foundation, The Brain Tumour Charity, Genome Canada, Genome BC, Genome Quebec, the Ontario Research Fund, Worldwide Cancer Research, V-Foundation for Cancer Research, and the Ontario Institute for Cancer Research through funding provided by the Government of Ontario, Canadian Cancer Society Research Institute Impact grant, a Cancer Research UK Brain Tumour Award, and the Garron Family Chair in Childhood Cancer Research at the Hospital for Sick Children and the University of Toronto. D.R.G. was supported with personal grants by the German Academic Scholarship Foundation (Studienstiftung des Deutschen Volkes) and the Mildred Scheel Doctoral Fellowship program of the German Cancer Aid (Deutsche Krebshilfe). DRG and KWP are thankful to the non-profit foundation Ein Kiwi gegen Krebs for their support. We also thank Yoon-Jae Cho, John Michaels, Koei Chin, Joe Gray, Connie New, and Ali Abdullatif for their help with the manuscript. Additionally, we appreciate support from the USC Norris Comprehensive Cancer Center Translational Pathology Core (P30CA014089), the Pediatric Research Biorepository at CHLA, and the Histology Core at the Koch Institute at MIT.
ASJC Scopus subject areas
- General Chemistry
- General Biochemistry, Genetics and Molecular Biology
- General Physics and Astronomy