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SETDB1-mediated repression of RhoB promotes EMT and metastatic progression in prostate cancer [RNA-Seq]

GSE316851 Homo sapiens (human) RNA-seq (gene expression) 9 samples Submitted 2026/07/09 Platform GPL34281
At a glance

RNA-seq (gene expression) · human · 9 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)
Topic
Prostate cancerThis series is part of our curated briefing on it.
Samples
9 samples: 3 × siCont vs 3 × siSETDB1-1 vs 3 × siSETDB1-2Groups 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.
Summary (written by the submitters)
Metastatic castration-resistant prostate cancer (CRPC) remains a clinical challenge, and epithelial–mesenchymal transition (EMT) contributes to metastatic progression and reduced response to therapy. However, the upstream epigenetic mechanisms that sustain EMT programs in advanced prostate cancer (PCa) are not fully defined. We identify the histone H3 lysine 9 (H3K9) methyltransferase SET domain bifurcated 1 (SETDB1) as a key regulator of EMT and metastasis through direct repression of the small GTPase RhoB.
Read the full summary ↓
SETDB1 is genomically amplified and transcriptionally upregulated in metastatic CRPC, and SETDB1 depletion reduces cell migration, invasion, and metastatic dissemination. Integrated chromatin profiling and transcriptomic analyses demonstrate that SETDB1 occupies the RhoB promoter and mediates its transcriptional silencing through H3K9 methylation. Restoration of RhoB reverses EMT gene expression and suppresses invasive behavior, whereas RhoB knockdown rescues the effects of SETDB1 depletion, establishing RhoB as a critical downstream effector of SETDB1 function. Androgen signaling inhibitor-resistant PCa models exhibit RhoB loss and EMT activation, linking this axis to therapy-resistant phenotypes. Finally, antisense oligonucleotide-mediated SETDB1 silencing restores RhoB expression and suppresses EMT and invasion in CRPC cell models. Together, these findings define a SETDB1-RhoB epigenetic pathway that promotes EMT and metastatic progression in PCa and may be therapeutically targeted in advanced disease.
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 GSE316851_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 PRJNA1405341 and SRA study SRP664599. Searching any of these in the dataset finder brings you back here.

Study design
3 × siCont vs 3 × siSETDB1-1 vs 3 × siSETDB1-2

Supports a between-group comparison across 9 samples.

How we read this: 3 replicated groups read from 9 sample titles; they account for 9 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
More Prostate cancer datasets

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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.