Evidence map›Paper›PMID 39695328›Full record

ArticleOncogene2025

PRMT5-regulated splicing of DNA repair genes drives chemoresistance in breast cancer stem cells.

Matthew S Gillespie, Kelly Chiang, Gemma L Regan-Mochrie, Soo-Youn Choi, Ciara M Ward, Debashish Sahay, Paloma Garcia, Roland Arnold, Clare C Davies

Abstract read
In one paragraph

Article in Oncogene, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed, 1 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

16 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Article
  3. Article
  4. Review
  5. Review
  6. Article
  7. Disulfiram metabolite Cu(DDC)EBioMedicine · 2026
    Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. EMT and cancer stem cells: Drivers of therapy resistance and promising therapeutic targets.Drug resistance updates : reviews and commentaries in antimicrobial and anticancer chemotherapy · 2025
    Review
  13. PRMT5 activity sustains histone production to maintain genome integrity.bioRxiv : the preprint server for biology · 2025
    Article
  14. Review
  15. Article
  16. Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

9 authors.

Matthew S Gillespie *Department of Cancer and Genomic Sciences, University of Birmingham, Birmingham, B15 2TT, UK.
Kelly Chiang *Department of Cancer and Genomic Sciences, University of Birmingham, Birmingham, B15 2TT, UK.
Gemma L Regan-MochrieDepartment of Cancer and Genomic Sciences, University of Birmingham, Birmingham, B15 2TT, UK.
Soo-Youn ChoiDepartment of Cancer and Genomic Sciences, University of Birmingham, Birmingham, B15 2TT, UK.
Ciara M WardDepartment of Cancer and Genomic Sciences, University of Birmingham, Birmingham, B15 2TT, UK.
Debashish SahayDepartment of Cancer and Genomic Sciences, University of Birmingham, Birmingham, B15 2TT, UK.
Paloma GarciaDepartment of Cancer and Genomic Sciences, University of Birmingham, Birmingham, B15 2TT, UK.ORCID http://orcid.org/0000-0001-5582-8575
Roland ArnoldDepartment of Cancer and Genomic Sciences, University of Birmingham, Birmingham, B15 2TT, UK.
Clare C DaviesDepartment of Cancer and Genomic Sciences, University of Birmingham, Birmingham, B15 2TT, UK. c.c.davies@bham.ac.uk.ORCID http://orcid.org/0000-0003-3097-1791

Funding

Breast Cancer Now (BCN) 2019AugPR1320Breast Cancer Now (BCN) 2023.05PR1630Cancer Research UK (CRUK) C52376/A25500
6 · The paper itself

Abstract

Breast cancer stem cells (BCSCs) are a rare cell population that is responsible for tumour initiation, metastasis and chemoresistance. Despite this, the mechanism by which BCSCs withstand genotoxic stress is largely unknown. Here, we uncover a pivotal role for the arginine methyltransferase PRMT5 in mediating BCSC chemoresistance by modulating DNA repair efficiency. Mechanistically, we identify PRMT5 as a major regulator of DNA damage response (DDR) gene splicing in BCSCs, particularly those integral to the Fanconi Anaemia and homologous recombination pathways, with PRMT5 inhibition synergising with chemotherapy to promote BCSC apoptosis. A comparison of BCSCs and their bulk cell progeny identified some shared (ATM, DDX11, EXO1, FAN1, SLX4) but many unique (ATR, RAD17, RAD51D, RUVBL1) PRMT5-dependent alternative DDR splicing events. Surprisingly, these skipped exons and retained intron events rarely lead to substantial gene expression repression, suggesting that PRMT5 inhibition predominantly results in nuclear detention of intron-containing transcripts and the production of non-canonical isoforms with compromised protein function. Since many genes within the same DDR pathway undergo deregulated splicing, this study thus reveals additional points of vulnerability and alternative combination drug strategies that could improve the therapeutic efficacy of PRMT5 inhibitors to promote BCSC eradication.

Indexed as

Breast NeoplasmsDNA RepairDrug Resistance, NeoplasmNeoplastic Stem CellsProtein-Arginine N-MethyltransferasesAlternative SplicingCell Line, TumorDNA DamageFemaleGene Expression Regulation, NeoplasticHumansPRMT5 protein, humanProtein-Arginine N-Methyltransferases

Identifiers

PMID39695328
PMCPMC11932929

What OpenQuestion holds

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LicenceCC BY
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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.