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Comparative epigenetic analysis of tumour initiating cells and syngeneic EPSC-derived neural stem cells in glioblastoma.

ABSTRACT: Epigenetic mechanisms which play an essential role in normal developmental processes, such as self-renewal and fate specification of neural stem cells (NSC) are also responsible for some of the changes in the glioblastoma (GBM) genome. Here we develop a strategy to compare the epigenetic and transcriptional make-up of primary GBM cells (GIC) with patient-matched expanded potential stem cell (EPSC)-derived NSC (iNSC). Using a comparative analysis of the transcriptome of syngeneic GIC/iNSC pairs, we identify a glycosaminoglycan (GAG)-mediated mechanism of recruitment of regulatory T cells (Tregs) in GBM. Integrated analysis of the transcriptome and DNA methylome of GBM cells identifies druggable target genes and patient-specific prediction of drug response in primary GIC cultures, which is validated in 3D and in vivo models. Taken together, we provide a proof of principle that this experimental pipeline has the potential to identify patient-specific disease mechanisms and druggable targets in GBM.

SUBMITTER: Vinel C

PROVIDER: S-EPMC8531305 | biostudies-literature |

REPOSITORIES: biostudies-literature

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Glioblastoma-initiating cells: relationship with neural stem cells and the micro-environment.

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Comparative analysis of glioblastoma initiating cells and patient-matched EPSC-derived neural stem cells as a discovery tool and drug matching strategy

Project description:This SuperSeries is composed of the SubSeries listed below.

2021-09-17 | GSE155994 | GEO

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Comparative analysis of glioblastoma initiating cells and patient-matched EPSC-derived neural stem cells as a discovery tool and drug matching strategy [array]

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