Evidence map›Paper›PMID 24568341›Full record

ArticleHuman gene therapy2014

Dissecting the mechanism of histone deacetylase inhibitors to enhance the activity of zinc finger nucleases delivered by integrase-defective lentiviral vectors.

Alok V Joglekar, Libby Stein, Michelle Ho, Megan D Hoban, Roger P Hollis, Donald B Kohn

Open access · greenAbstract read
In one paragraph

Article in Human gene therapy, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
1.0field-weighted citation impact, top 25% 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

11 citing papers in PubMed, 17 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Prostaglandin EMolecular therapy : the journal of the American Society of Gene Therapy · 2018
    Article
  8. Article
  9. Article
  10. Review
  11. Engineered Viruses as Genome Editing Devices.Molecular therapy : the journal of the American Society of Gene Therapy · 2016
    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

6 authors at 1 institution in 1 country.

Alok V JoglekarDepartment of Microbiology, Immunology, and Molecular Genetics; and Eli & Edythe Broad Center of Regenerative Medicine & Stem Cell Research; University of California , Los Angeles, Los Angeles, CA 90095.
Libby Stein
Michelle Ho
Megan D Hoban
Roger P Hollis
Donald B Kohn
University of California System · US

Funding

Transduction of Human Stem and Progenitor CellsP01HL073104 · NHLBI · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI KOHN, DONALD B · 2003 to 2013
$18.3M
NHLBI NIH HHS 2P01 HL073104NHLBI NIH HHS P01 HL073104
6 · The paper itself

Abstract

Integrase-defective lentiviral vectors (IDLVs) have been of limited success in the delivery of zinc finger nucleases (ZFNs) to human cells, due to low expression. A reason for reduced gene expression has been proposed to involve the epigenetic silencing of vector genomes, carried out primarily by histone deacetylases (HDACs). In this study, we tested valproic acid (VPA), a known HDAC inhibitor (HDACi), for its ability to increase transgene expression from IDLVs, especially in the context of ZFN delivery. Using ZFNs targeting the human adenosine deaminase (ADA) gene in K562 cells, we demonstrated that treatment with VPA enhanced ZFN expression by up to 3-fold, resulting in improved allelic disruption at the ADA locus. Furthermore, three other U.S. Food and Drug Administration-approved HDACis (vorinostat, givinostat, and trichostatin-A) exhibited a similar effect on the activity of ZFN-IDLVs in K562 cells. In primary human CD34(+) cells, VPA- and vorinostat-treated cells showed higher levels of expression of both green fluorescent protein (GFP) as well as ZFNs from IDLVs. A major mechanism for the effects of HDAC inhibitors on improving expression was from their modulation of the cell cycle, and the influence of heterochromatinization was determined to be a lesser contributing factor.

Indexed as

DeoxyribonucleasesGenetic VectorsIntegrasesLentivirusTransduction, GeneticViral ProteinsHistone Deacetylase InhibitorsHumansK562 CellsZinc FingersDeoxyribonucleasesHistone Deacetylase InhibitorsIntegrasesViral Proteins

Identifiers

PMID24568341
PMCPMC4098962
OpenAlexW2041453578

What OpenQuestion holds

Textmetadata
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.