Single-cell landscapes of primary glioblastomas and matched organoids and cell lines reveal variable retention of inter- and intra-tumor heterogeneity
|Study ID||Alternative Stable ID||Type|
Glioblastomas (GBMs) are aggressive primary malignant brain tumors characterized by extensive levels of inter- and intra-tumor genetic and phenotypic heterogeneity. Patient-derived organoids (PDOs) have recently emerged as useful models to study such heterogeneity. Here, we present bulk exome as well as single-cell genome and transcriptome profiles of primary IDH wild type GBMs from ten patients, including two recurrent tumors, as well as PDOs and brain tumor-initiating cell (BTIC) lines derived from these patients. We find that PDOs are genetically similar to and variably retain gene expression characteristics of their parent tumors. At the phenotypic level, PDOs appear to exhibit similar levels of transcriptional heterogeneity as their parent tumors, whereas BTIC lines tend to be enriched for cells in a more uniform transcriptional state. The datasets introduced here will provide a valuable resource to help guide experiments using GBM-derived organoids, especially in the context of studying cellular heterogeneity.
Study Datasets 4 datasets.
Click on a Dataset ID in the table below to learn more, and to find out who to contact about access to these data
Whole-exome sequencing (~250X coverage) of primary GBM tumours and matched patient-derived organoids and normal blood. Samples from two spatially distinct regions of seven tumours from five patients (five primary, two recurrent).
|Illumina HiSeq 2500||29|
Single-cell RNA-seq of primary GBM tumours and matched patient-derived organoids and gliomasphere lines. Obtained using the 10X Genomics single-cell 3' expression solution (v2 chemistry). Primary samples and PDOs from 12 tumours from 10 patients (10 primary, two recurrent), and gliomasphere lines from a subset of five tumours. Samples were obtained from two spatially distinct regions of each tumour.
|Illumina HiSeq 2500||99|
Single-cell whole-genome sequencing of primary GBM tumours and matched patient-derived organoids. Obtained using the 10X Genomics single-cell CNV solution. Samples from two spatially distinct regions of five tumours from three patients (three primary, two recurrent).
|HiSeq X Ten||16|
Single-cell RNA-seq of first-, second-, and third-generation patient-derived organoids. Obtained using the 10X Genomics single-cell 3' expression solution (v3 chemistry). First- and second-generation PDOs from one patient and first-, second-, and third-generation PDOs from three additional patients.
|Illumina NovaSeq 6000||11|