Dissecting intratumor heterogeneity of nodal B cell lymphoma on the transcriptional, genetic, and drug response level

Study ID Alternative Stable ID Type
EGAS00001004335 Other

Study Description

Tumor heterogeneity encompasses both the malignant cells and their microenvironment. While heterogeneity between individual patients is well-known to affect the efficacy of anti-cancer, most personalized treatment approaches do not account for intratumor heterogeneity. We addressed this issue by studying the heterogeneity of lymph node-derived B cell non-Hodgkin lymphoma (B-NHL) by single cell RNA-sequencing (scRNA-seq) and transcriptome-informed flow cytometry. We identified transcriptionally distinct malignant subclones and compared their drug response and genomic profiles. Malignant subclones of the same patient responded strikingly different to anti-cancer drugs ex vivo, which recapitulated subclone-specific drug sensitivity during in vivo treatment. Tumor infiltrating T cells represented the majority of non-malignant cells, whose gene expression signatures were similar across all donors, whereas the frequencies of T cell subsets varied significantly between the donors. Our data provide new insights into the heterogeneity of B-NHL and highlight the relevance of intratumor ... (Show More)

Study Datasets 4 datasets.

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Dataset ID Description Technology Samples
paired WGS sequencing of nodal B-cell lymphoma, one tumor and one control, one patient (H021). Sequencing on Hiseq XTen with TruSeq Nano library preparation kit.
HiSeq X Ten 2
paired WGS data of one tumor of one patient with nodal B-cell lymphoma. Tumor cells were sorted according to CD48 expression in a high and low fraction. Library preparation with TruSeq Nano and sequencing on Hiseq XTen.
HiSeq X Ten 2
Tumors and control of nodal B-cell lymphoma of one patient. WES sequencing on Illumina HiSeq 4000 with Agilent SureSelect V5+UTRs. Bam files were aligned with bwa mem to hg19.
Illumina HiSeq 4000 5
paired EXOME sequencing on Illumina HiSeq 4000 using Agilent SureSelect V6 of one tumor sample of one patient with B-cell lymphoma. The bam-file was mapped to the hg19 genome.
Illumina HiSeq 4000 1

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