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CRISPR/Cas9 mutagenesis screening identifies PRDM1 as a key regulator of the natural killer T cell central memory program and effector function

GSE261930 Homo sapiens (human) RNA-seq (gene expression) 51 samples Submitted 2025/01/10 Platform GPL24676
At a glance

RNA-seq (gene expression) · human · 51 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
Homo sapiens (human)
Samples
51 samples
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
PRDM1 Is a Key Regulator of the NKT-cell Central Memory Program and Effector FunctionCancer immunology research · 2025
Summary (written by the submitters)
Natural killer T cells (NKTs) are a promising platform for cancer immunotherapy, but few genes involved in regulation of NKT therapeutic activity have been identified. To discover regulators of NKT functional fitness, we developed a CRISPR/Cas9-based mutagenesis screen that employs a guide (g)RNA library targeting 1,118 immune-related genes.
Read the full summary ↓
Unmodified NKTs and NKTs expressing a GD2-specific chimeric antigen receptor (CAR.NKTs) were transduced with the gRNA library and exposed to CD1d+/GD2- leukemia or CD1d-/GD2+ neuroblastoma cells, respectively, over six challenge cycles in vitro. Quantification of gRNA abundance revealed enrichment of PRDM1-specific gRNAs in both NKTs and CAR.NKTs, a result that was validated through targeted PRDM1 knockout. Transcriptional, phenotypic, and functional analyses demonstrated that CAR.NKTs with PRDM1 knockout undergo central memory-like differentiation and resist exhaustion while downregulating granzyme B and mediating reduced cytotoxicity in vitro and moderate antitumor activity in an in vivo xenogeneic neuroblastoma model. In contrast, shRNA-mediated knockdown of PRDM1 expression preserved CAR.NKT effector function while promoting central memory differentiation, resulting in CAR.NKTs with potent in vivo antitumor activity. Thus, we identified PRDM1 as a regulator of NKT memory differentiation and effector function that can be exploited to improve the efficacy of next-generation NKT-based cancer immunotherapy.
Published in
PRDM1 Is a Key Regulator of the NKT-cell Central Memory Program and Effector Function
Tian G, Barragan GA, Yu H et al. · Cancer immunology research 2025 · PMID 39820712 · doi:10.1158/2326-6066.CIR-24-0259
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 GSE261930_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 PRJNA1089601 and SRA study SRP496465. Searching any of these in the dataset finder brings you back here.

Samples in this study

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