Evidence map›Paper›PMID 19262615›Full record

ArticleGene therapy2009

Validation of a mutated PRE sequence allowing high and sustained transgene expression while abrogating WHV-X protein synthesis: application to the gene therapy of WAS.

M A Zanta-Boussif, S Charrier, A Brice-Ouzet, S Martin, P Opolon, A J Thrasher, T J Hope, A Galy

Abstract readEvaluation Study
PubMed Publisher
In one paragraph

Article in Gene therapy, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 52 papers.

0numbers the graph read from it
0cells of the map it votes in
52citing papers in PubMed
3.5field-weighted citation impact, top 7% 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

52 citing papers in PubMed, 86 citations in OpenAlex.

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  17. Strategies to improve safety profile of AAV vectors.Frontiers in molecular medicine · 2022
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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

8 authors at 4 institutions in 3 countries.

M A Zanta-BoussifTranslational Research and Development, Genethon, Evry, France.
S Charrier
A Brice-Ouzet
S Martin
P Opolon
A J Thrasher
T J Hope
A Galy
Genethon (France) · FRInstitut Gustave Roussy · FRNorthwestern University · USUniversity College London · GB

Funding

Wellcome Trust
6 · The paper itself

Abstract

The woodchuck hepatitis virus posttranscriptional regulatory element (WPRE) is widely used in retroviral gene transfer vectors. However, this element contains an open-reading frame (ORF) encoding a truncated peptide of the woodchuck hepatitis virus X protein (WHX). Because we are developing a lentiviral vector for the gene therapy of Wiskott-Aldrich syndrome (WAS), we evaluated whether the WPRE was needed in the gene transfer cassette and tested the possibility of replacing it with a mutated derivative. The transcriptional activity of the WPRE was undetectable in the context of the lentiviral vector but the element was capable of translating a polypeptide. This capability was abrogated by mutating the WHX ORF translation start. The WPRE was required to express high levels of the transgene and for that, the native form or mutated derivatives functioned equivalently. The vector using a WAS gene promoter and the mut6 WPRE induced long-term expression of the WAS transgene in vivo, correcting cytoskeletal defects, thymocyte and B-cell numbers and improved the colitis of WAS-null mice. By providing additional evidence of efficacy of this WAS lentiviral vector with improved safety features, our results validate a mutated WPRE, which should be useful in future gene therapy applications.

Indexed as

AnimalsCell LineColitisGene Expression RegulationGenetic TherapyGenetic VectorsHepatitis B Virus, WoodchuckHumansLentivirusMiceMutationOpen Reading FramesPlasmidsTrans-ActivatorsTransduction, GeneticTransgenesprotein X, Woodchuck hepatitis B virusTrans-Activators

Identifiers

PMID19262615
OpenAlexW2017990041

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.