Evidence map›Paper›PMID 25684141›Full record

ArticleOncogene2015

Stable oncogenic silencing in vivo by programmable and targeted de novo DNA methylation in breast cancer.

S Stolzenburg, A S Beltran, T Swift-Scanlan, A G Rivenbark, R Rashwan, P Blancafort

Open access · hybridAbstract read
In one paragraph

Article in Oncogene, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 51 papers.

0numbers the graph read from it
0cells of the map it votes in
51citing papers in PubMed
6.3field-weighted citation impact, top 3% of its field
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

51 citing papers in PubMed, 92 citations in OpenAlex.

  1. Review
  2. Review
  3. Epigenetic editing: from concept to clinic.Nature reviews. Drug discovery · 2026
    Review
  4. Article
  5. Review
  6. Review
  7. SOX on tumors, a comfort or a constraint?Cell death discovery · 2024
    Review
  8. Neuroepigenetic Editing.Methods in molecular biology (Clifton, N.J.) · 2024
    Review
  9. Article
  10. Article
  11. Article
  12. Article
  13. Review
  14. Review
  15. Article
  16. Review
  17. Review
  18. DNMT3A and DNMT3B in Breast Tumorigenesis and Potential Therapy.Frontiers in cell and developmental biology · 2022
    Review
  19. Review
  20. Article
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

6 authors at 3 institutions in 2 countries.

S StolzenburgCancer Epigenetics Group, The Harry Perkins Institute of Medical Research, Western Australia & School of Anatomy, Physiology and Human Biology, M309, The University of Western Australia, Nedlands, Western Australia, Australia.
A S BeltranDepartment of Pharmacology, School of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA.
T Swift-ScanlanLineberger Comprehensive Cancer Center/School of Nursing, University of North Carolina, Chapel Hill, NC, USA.
A G RivenbarkDepartment of Pathology and Laboratory Medicine, University of North Carolina School of Medicine, Chapel Hill, NC, USA.
R RashwanCancer Epigenetics Group, The Harry Perkins Institute of Medical Research, Western Australia & School of Anatomy, Physiology and Human Biology, M309, The University of Western Australia, Nedlands, Western Australia, Australia.
P BlancafortCancer Epigenetics Group, The Harry Perkins Institute of Medical Research, Western Australia & School of Anatomy, Physiology and Human Biology, M309, The University of Western Australia, Nedlands, Western Australia, Australia.
University of North Carolina at Chapel Hill · USHarry Perkins Institute of Medical Research · AUUNC Lineberger Comprehensive Cancer Center

Funding

Targeted epigenetic silencing of oncogenic Transcription Factors (PQ18)R01CA170370 · NCI · UNIV OF NORTH CAROLINA CHAPEL HILL · PI BLANCAFORT, PILAR · 2012 to 2015
$900k
Precision engineering of DNA methylation patterns in the human genomeR01DA036906 · NIDA · UNIVERSITY OF WESTERN AUSTRALIA · PI BLANCAFORT, PILAR, LISTER, RYAN · 2013 to 2014
$350k
NCI NIH HHS R01 CA170370NCI NIH HHS R01CA170370NIDA NIH HHS R01 DA036906NIDA NIH HHS R01DA036906
6 · The paper itself

Abstract

With the recent comprehensive mapping of cancer genomes, there is now a need for functional approaches to edit the aberrant epigenetic state of key cancer drivers to reprogram the epi-pathology of the disease. In this study we utilized a programmable DNA-binding methyltransferase to induce targeted incorporation of DNA methylation (DNAme) in the SOX2 oncogene in breast cancer through a six zinc finger (ZF) protein linked to DNA methyltransferase 3A (ZF-DNMT3A). We demonstrated long-lasting oncogenic repression, which was maintained even after suppression of ZF-DNMT3A expression in tumor cells. The de novo DNAme was faithfully propagated and maintained through cell generations even after the suppression of the expression of the chimeric methyltransferase in the tumor cells. Xenograft studies in NUDE mice demonstrated stable SOX2 repression and long-term breast tumor growth inhibition, which lasted for >100 days post implantation of the tumor cells in mice. This was accompanied with a faithful maintenance of DNAme in the breast cancer implants. In contrast, downregulation of SOX2 by ZF domains engineered with the Krueppel-associated box repressor domain resulted in a transient and reversible suppression of oncogenic gene expression. Our results indicated that targeted de novo DNAme of the SOX2 oncogenic promoter was sufficient to induce long-lasting epigenetic silencing, which was not only maintained during cell division but also significantly delayed the tumorigenic phenotype of cancer cells in vivo, even in the absence of treatment. Here, we outline a genome-based targeting approach to long-lasting tumor growth inhibition with potential applicability to many other oncogenic drivers that are currently refractory to drug design.

Indexed as

AnimalsBreast NeoplasmsCell DivisionCell Line, TumorDNA (Cytosine-5-)-MethyltransferasesDNA MethylationDNA Methyltransferase 3ADown-RegulationEpigenesis, GeneticFemaleGene ExpressionGene SilencingHumansMCF-7 CellsMiceMice, NudeDNA (Cytosine-5-)-MethyltransferasesDNA Methyltransferase 3ADNMT3A protein, humanDnmt3a protein, mouseSOX2 protein, humanSOXB1 Transcription Factors

Identifiers

PMID25684141
PMCPMC4633433
OpenAlexW2024962857

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

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.