Evidence map›Paper›PMID 16825499›Full record

ArticleBlood2006

Cell-culture assays reveal the importance of retroviral vector design for insertional genotoxicity.

Ute Modlich, Jens Bohne, Manfred Schmidt, Christof von Kalle, Sabine Knöss, Axel Schambach, Christopher Baum

Open access · bronzeAbstract read
In one paragraph

Article in Blood, 2006. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 181 papers.

0numbers the graph read from it
0cells of the map it votes in
181citing papers in PubMed
20.0field-weighted citation impact, top 1% 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

181 citing papers in PubMed, 322 citations in OpenAlex.

  1. Trial
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  10. Development of anMolecular therapy. Methods & clinical development · 2023
    Article
  11. TGFCells · 2023
    Article
  12. Review
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  15. Article
  16. Evaluating the state of the science for adeno-associated virus integration: An integrated perspective.Molecular therapy : the journal of the American Society of Gene Therapy · 2022
    Review
  17. Review
  18. Review
  19. Review
  20. Evaluation of twoMolecular therapy. Methods & clinical development · 2021
    Article

121 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

7 authors at 2 institutions in 1 country.

Ute ModlichDepartment of Experimental Hematology, Hannover Medical School, Carl-Neuberg-Strasse 1, D-30625 Hannover, Germany.
Jens Bohne
Manfred Schmidt
Christof von Kalle
Sabine Knöss
Axel Schambach
Christopher Baum
Medizinische Hochschule Hannover · DENational Center for Tumor Diseases · DE

Funding

Prevention of insertional mutagenesis in gene therapyR01CA107492 · NCI · CINCINNATI CHILDRENS HOSP MED CTR · PI BAUM, CHRISTOPHER · 2005 to 2008
$917k
NCI NIH HHS R01 CA 107492-01A2
6 · The paper itself

Abstract

Retroviral vectors with long terminal repeats (LTRs), which contain strong enhancer/promoter sequences at both ends of their genome, are widely used for stable gene transfer into hematopoietic cells. However, recent clinical data and mouse models point to insertional activation of cellular proto-oncogenes as a dose-limiting side effect of retroviral gene delivery that potentially induces leukemia. Self-inactivating (SIN) retroviral vectors do not contain the terminal repetition of the enhancer/promoter, theoretically attenuating the interaction with neighboring cellular genes. With a new assay based on in vitro expansion of primary murine hematopoietic cells and selection in limiting dilution, we showed that SIN vectors using a strong internal retroviral enhancer/promoter may also transform cells by insertional mutagenesis. Most transformed clones, including those obtained after dose escalation of SIN vectors, showed insertions upstream of the third exon of Evi1 and in reverse orientation to its transcriptional orientation. Normalizing for the vector copy number, we found the transforming capacity of SIN vectors to be significantly reduced when compared with corresponding LTR vectors. Additional modifications of SIN vectors may further increase safety. Improved cell-culture assays will likely play an important role in the evaluation of insertional mutagenesis.

Indexed as

Genetic VectorsMutagenesis, InsertionalAnimalsBase SequenceBone Marrow CellsCell Culture TechniquesDNA, ViralGene Expression RegulationGenetic TherapyHumansLeukemiaMiceMice, Inbred C57BLProto-OncogenesRetroviridaeSafetyDNA, Viral

Identifiers

PMID16825499
PMCPMC1895590
OpenAlexW2058895038

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.