Evidence map›Paper›PMID 28973434›Full record

ArticleNucleic acids research2017

dCas9-based epigenome editing suggests acquisition of histone methylation is not sufficient for target gene repression.

Henriette O'Geen, Chonghua Ren, Charles M Nicolet, Andrew A Perez, Julian Halmai, Victoria M Le, Joel P Mackay, Peggy J Farnham, David J Segal

Open access · goldAbstract read
In one paragraph

Article in Nucleic acids research, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 136 papers.

0numbers the graph read from it
0cells of the map it votes in
136citing papers in PubMed
8.7field-weighted citation impact, top 2% 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

136 citing papers in PubMed, 250 citations in OpenAlex.

  1. Review
  2. Article
  3. Review
  4. Advances and clinical potential of epigenome editing.Cellular and molecular life sciences : CMLS · 2026
    Review
  5. Review
  6. In Vivo T-Cell Engineering: Revolution in Delivery Strategies and Clinical Translation.BioDrugs : clinical immunotherapeutics, biopharmaceuticals and gene therapy · 2026
    Review
  7. Review
  8. Epigenetic editing: from concept to clinic.Nature reviews. Drug discovery · 2026
    Review
  9. Article
  10. Article
  11. Review
  12. Article
  13. Epigenome editing based treatment: Progresses and challenges.Molecular therapy : the journal of the American Society of Gene Therapy · 2026
    Review
  14. Review
  15. Article
  16. Article
  17. Review
  18. Article
  19. Reversing transgene silencing via targeted chromatin editing.bioRxiv : the preprint server for biology · 2025
    Article
  20. Article

76 more citing papers are in PubMed but not listed here.

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 at 4 institutions in 3 countries.

Henriette O'GeenGenome Center and Department of Biochemistry and Molecular Medicine, University of California, Davis, CA 95616, USA.
Chonghua RenGenome Center and Department of Biochemistry and Molecular Medicine, University of California, Davis, CA 95616, USA.
Charles M NicoletDepartment of Biochemistry and Molecular Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA 90089, USA.
Andrew A PerezDepartment of Biochemistry and Molecular Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA 90089, USA.
Julian HalmaiGenome Center and Department of Biochemistry and Molecular Medicine, University of California, Davis, CA 95616, USA.
Victoria M LeGenome Center and Department of Biochemistry and Molecular Medicine, University of California, Davis, CA 95616, USA.
Joel P MackaySchool of Life and Environmental Sciences, The University of Sydney, Sydney, NSW 2006, Australia.
Peggy J FarnhamDepartment of Biochemistry and Molecular Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA 90089, USA.
David J SegalGenome Center and Department of Biochemistry and Molecular Medicine, University of California, Davis, CA 95616, USA.
University of California, Davis · USUniversity of Southern California · USSouth China Normal University · CNThe University of Sydney · AU

Funding

CRISPR-based epigenetic modifiersR21CA204563 · NCI · UNIVERSITY OF CALIFORNIA AT DAVIS · PI SEGAL, DAVID J · 2016 to 2017
$732k
NCI NIH HHS R21 CA204563
6 · The paper itself

Abstract

Distinct epigenomic profiles of histone marks have been associated with gene expression, but questions regarding the causal relationship remain. Here we investigated the activity of a broad collection of genomically targeted epigenetic regulators that could write epigenetic marks associated with a repressed chromatin state (G9A, SUV39H1, Krüppel-associated box (KRAB), DNMT3A as well as the first targetable versions of Ezh2 and Friend of GATA-1 (FOG1)). dCas9 fusions produced target gene repression over a range of 0- to 10-fold that varied by locus and cell type. dCpf1 fusions were unable to repress gene expression. The most persistent gene repression required the action of several effector domains; however, KRAB-dCas9 did not contribute to persistence in contrast to previous reports. A 'direct tethering' strategy attaching the Ezh2 methyltransferase enzyme to dCas9, as well as a 'recruitment' strategy attaching the N-terminal 45 residues of FOG1 to dCas9 to recruit the endogenous nucleosome remodeling and deacetylase complex, were both successful in targeted deposition of H3K27me3. Surprisingly, however, repression was not correlated with deposition of either H3K9me3 or H3K27me3. Our results suggest that so-called repressive histone modifications are not sufficient for gene repression. The easily programmable dCas9 toolkit allowed precise control of epigenetic information and dissection of the relationship between the epigenome and gene regulation.

Indexed as

Gene SilencingChromatinDNA (Cytosine-5-)-MethyltransferasesDNA Methyltransferase 3AEndonucleasesEpigenomicsErb-b2 Receptor Tyrosine KinasesGene EditingHCT116 CellsHEK293 CellsHistocompatibility AntigensHistone-Lysine N-MethyltransferaseHistonesHumansMethylationMethyltransferasesChromatinDNA (Cytosine-5-)-MethyltransferasesDNA Methyltransferase 3ADNMT3A protein, humanEHMT2 protein, humanEndonucleasesERBB2 protein, humanErb-b2 Receptor Tyrosine KinasesHistocompatibility AntigensHistone-Lysine N-MethyltransferaseHistonesMethyltransferasesNuclear ProteinsRecombinant Fusion ProteinsRepressor ProteinsRNA, MessengerSUV39H1 protein, humanTranscription FactorsZFPM1 protein, humanZNF350 protein, human

Identifiers

PMID28973434
PMCPMC5622328
OpenAlexW2730980172

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.