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Local radiation enhances systemic CAR T-cell efficacy by augmenting antigen crosspresentation and T-cell infiltration

GSE281695 Mus musculus (mouse) RNA-seq (gene expression) 25 samples Submitted 2024/11/13 Platform GPL34290
At a glance

RNA-seq (gene expression) · mouse · 25 samples

What it is
RNA-seq (gene expression)Gene activity measured by sequencing. The summary does not mention single-cell work, so this is most likely bulk: one average per sample, the usual starting point for comparing groups.
Organism
Mus musculus (mouse)
Samples
25 samples: 9 conditions, mostly in triplicateGroups are read from the sample names, not from the paper. Check the list below.
Data you can get
A processed table (series matrix) and supplementary files from NCBI; the raw sequencing reads from ENA. Which of these hold counts depends on the study, so check the file list.
Paper
Local radiation enhances systemic CAR T-cell efficacy by augmenting antigen crosspresentation and T-cell infiltrationBlood advances · 2024
Summary (written by the submitters)
Chimeric antigen receptor (CAR) T-cell therapy targeting CD19 (CART-19) represents a significant advance in the treatment of patients with relapsed or refractory CD19+ B-cell lymphomas. However, a significant portion of patients either relapse or fail to respond. Moreover, many patients have symptomatic disease, requiring bridging radiation therapy (RT) during the period of CAR T-cell manufacturing.
Read the full summary ↓
To investigate the impact of 1 to 2 fractions of low-dose RT on CART-19 treatment response, we developed a mouse model using A20 lymphoma cells for CART-19 therapy. We found that low-dose fractionated RT had a positive effect on generating abscopal systemic antitumor responses beyond the irradiated site. The combination of RT with CART-19 therapy resulted in additive effects on tumor growth in irradiated masses. Notably, a significant additional increase in antitumor effect was observed in nonirradiated tumors. Mechanistically, our results validate activation of the cyclic guanosine adenosine synthetase/stimulator of interferon genes pathway, tumor-associated antigen crosspriming, and elicitation of epitope spreading. Collectively, our findings suggest that RT may serve as an optimal priming and bridging modality for CAR T-cell therapy, overcoming treatment resistance and improving clinical outcomes in patients with CD19+ hematologic malignancies.
Published in
Local radiation enhances systemic CAR T-cell efficacy by augmenting antigen crosspresentation and T-cell infiltration
Kostopoulos N, Costabile F, Krimitza E et al. · Blood advances 2024 · PMID 39213422 · doi:10.1182/bloodadvances.2024012599
This dataset
Download · which file do I need?

Direct links to NCBI and ENA, no account and no request form. Pick by what you want to do: take the small processed table to look, the supplementary files to re-analyse, or the original raw data to start over.

1 · Just have a look

Processed table

The series matrix: one table of values per sample as the submitters processed it. The smallest download, and it opens in Excel or R. Start here to see what the data look like.

2 · Re-analyse it

Supplementary files

The count tables and other files the authors uploaded. Take only the samples you need, or the whole study as GSE281695_RAW.tar (it can run to tens of gigabytes).

3 · Start from the raw reads

Raw sequencing reads

The original FASTQ files, straight from the sequencer, held at ENA. Large, and you align them yourself, so only choose this if you need to re-process the study from scratch.

What the files usually look like: For RNA-seq the counts are usually a table among the supplementary files (look for 'counts', 'expression', 'FPKM' or 'TPM' in the file name). The series matrix of a sequencing study is sometimes nearly empty.

Also filed as BioProject PRJNA1185241 and SRA study SRP544728. Searching any of these in the dataset finder brings you back here.

Study design
9 conditions, mostly in triplicate
Control ×3 1x8 24h I ×3 1x8 24h NI ×3 2x4 24h I ×3 2x4 24h NI ×3 1x8 7d I ×2 1x8 7d NI ×2 2x4 7d I ×2 +3 more

Supports a case/control comparison: 2 samples read as cases, 3 as controls.

How we read this: 9 replicated groups read from 25 sample titles; they account for 23 of them. These groups are guessed from the sample names, not taken from the paper, so check them against the sample list below before relying on them.

Samples in this study
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Metadata from NCBI GEO, cached and refreshed periodically — the NCBI page above is authoritative. Downloads link straight to NCBI/ENA; nothing is proxied through BioTransfer.