Evidence map›Paper›PMID 19877879›Full record

ArticleHuman gene therapy2010

Modification of integration site preferences of an HIV-1-based vector by expression of a novel synthetic protein.

Robert M Silvers, Johanna A Smith, Michael Schowalter, Samuel Litwin, Zhihui Liang, Kyla Geary, René Daniel

Open access · greenAbstract read
In one paragraph

Article in Human gene therapy, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 40 papers.

0numbers the graph read from it
0cells of the map it votes in
40citing papers in PubMed
5.6field-weighted citation impact, top 4% 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

40 citing papers in PubMed, 71 citations in OpenAlex.

  1. Article
  2. Review
  3. Review
  4. Review
  5. Efficient Nuclease-Directed Integration of Lentivirus Vectors into the Human Ribosomal DNA Locus.Molecular therapy : the journal of the American Society of Gene Therapy · 2020
    Article
  6. Cellular and molecular mechanisms of HIV-1 integration targeting.Cellular and molecular life sciences : CMLS · 2018
    Review
  7. Article
  8. Review
  9. Retroviral DNA Integration.Chemical reviews · 2016
    Review
  10. Article
  11. Review
  12. Article
  13. Article
  14. Sites of retroviral DNA integration: From basic research to clinical applications.Critical reviews in biochemistry and molecular biology · 2016
    Review
  15. Retroviral integration: Site matters: Mechanisms and consequences of retroviral integration site selection.BioEssays : news and reviews in molecular, cellular and developmental biology · 2015
    Review
  16. Review
  17. Article
  18. Article
  19. Article
  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

7 authors at 1 institution in 1 country.

Robert M SilversDivision of Infectious Diseases, Center for Human Virology, Thomas Jefferson University, Philadelphia, PA 19107, USA.
Johanna A Smith
Michael Schowalter
Samuel Litwin
Zhihui Liang
Kyla Geary
René Daniel
Fox Chase Cancer Center · US

Funding

Cellular co-factors in stable retroviral transductionR01CA125272 · NCI · THOMAS JEFFERSON UNIVERSITY · PI DANIEL, RENE · 2007 to 2011
$1.2M
Targeting Retroviral DNA Integration: Role of Host Cell ProteinsR21CA135214 · NCI · THOMAS JEFFERSON UNIVERSITY · PI DANIEL, RENE · 2008 to 2009
$382k
NCI NIH HHS CA125272NCI NIH HHS CA135214NCI NIH HHS R01 CA125272NCI NIH HHS R21 CA135214
6 · The paper itself

Abstract

HIV-1-based lentiviral vectors are a promising tool for gene therapy. However, integration of a lentiviral vector into host cell genes may lead to the development of cancer. Therefore, control of integration site selection is critical to the successful outcome of gene therapy approaches that use these vectors. The discovery that integration site selection by HIV-1 and HIV-1-based vectors is controlled by the LEDGF/p75 protein has presented new opportunities to control integration site selection. In this study, we tested the hypothesis that a fusion protein containing the C-terminal HIV integrase-binding portion of LEDGF/p75, and the N-terminal chromodomain of heterochromatin protein-1alpha (HP1alpha), can target HIV-1 vector DNA outside of genes. We show that this fusion protein, termed TIHPLE, associates with the heterochromatin hallmark trimethylated Lys-9 of histone H3 (H3K9me3). Transient overexpression of TIHPLE alters integration site selection by an HIV-1-based vector and decreases the number of integration events that occur in genes. This change in integration site selection was achieved without a reduction in overall integration efficiency. Furthermore, we show that TIHPLE increases integration in the vicinity of H3K9me3 and in repetitive DNA sequences. These data provide a novel approach to address the problem of the tendency of retroviral vectors to integrate at undesirable sites of the human genome.

Indexed as

Genetic VectorsBinding SitesBlotting, WesternCell ProliferationChromatin ImmunoprecipitationChromobox Protein Homolog 5Chromosomal Proteins, Non-HistoneGreen Fluorescent ProteinsHeterochromatinHistonesHIV-1HumansImmunoenzyme TechniquesImmunoprecipitationIntercellular Signaling Peptides and ProteinsLentivirusCBX5 protein, humanChromobox Protein Homolog 5Chromosomal Proteins, Non-Histoneenhanced green fluorescent proteinGreen Fluorescent ProteinsHeterochromatinHistonesIntercellular Signaling Peptides and Proteinslens epithelium-derived growth factorLysineRecombinant Fusion ProteinsRNA, Messenger

Identifiers

PMID19877879
PMCPMC2865216
OpenAlexW2022269865

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.