Proteogenomic and metabolomic characterization of human glioblastoma

Clinical Proteomic Tumor Analysis Consortium

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

Glioblastoma (GBM) is the most aggressive nervous system cancer. Understanding its molecular pathogenesis is crucial to improving diagnosis and treatment. Integrated analysis of genomic, proteomic, post-translational modification and metabolomic data on 99 treatment-naive GBMs provides insights to GBM biology. We identify key phosphorylation events (e.g., phosphorylated PTPN11 and PLCG1) as potential switches mediating oncogenic pathway activation, as well as potential targets for EGFR-, TP53-, and RB1-altered tumors. Immune subtypes with distinct immune cell types are discovered using bulk omics methodologies, validated by snRNA-seq, and correlated with specific expression and histone acetylation patterns. Histone H2B acetylation in classical-like and immune-low GBM is driven largely by BRDs, CREBBP, and EP300. Integrated metabolomic and proteomic data identify specific lipid distributions across subtypes and distinct global metabolic changes in IDH-mutated tumors. This work highlights biological relationships that could contribute to stratification of GBM patients for more effective treatment.

Original languageEnglish (US)
Pages (from-to)509-528.e20
JournalCancer Cell
Volume39
Issue number4
DOIs
StatePublished - Apr 12 2021

Keywords

  • CPTAC
  • acetylome
  • glioblastoma
  • lipidome
  • metabolome
  • proteogenomics
  • proteomics
  • signaling
  • single nuclei RNA-seq

ASJC Scopus subject areas

  • Oncology
  • Cell Biology
  • Cancer Research

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