Evidence map›Paper›PMID 15716977›Full record

ArticleGene therapy2005

Library-based selection of retroviruses selectively spreading through matrix metalloprotease-positive cells.

I Hartl, R M Schneider, Y Sun, J Medvedovska, M P Chadwick, S J Russell, K Cichutek, C J Buchholz

Abstract read
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In one paragraph

Article in Gene therapy, 2005. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed
2.8field-weighted citation impact, top 10% 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

10 citing papers in PubMed, 27 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
  4. Article
  5. Article
  6. Targeted cell entry of lentiviral vectors.Molecular therapy : the journal of the American Society of Gene Therapy · 2008
    Article
  7. Article
  8. Article
  9. Identification of a retroviral receptor used by an envelope protein derived by peptide library screening.Proceedings of the National Academy of Sciences of the United States of America · 2007
    Article
  10. 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

8 authors at 3 institutions in 3 countries.

I HartlMedizinische Biotechnologie, Paul-Ehrlich-Institut, Langen, Germany.
R M Schneider
Y Sun
J Medvedovska
M P Chadwick
S J Russell
K Cichutek
C J Buchholz
Paul Ehrlich Institut · DEBiocompatibles (United Kingdom) · GBMayo Clinic in Florida · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Viruses conditionally replicating in cancer cells form an attractive novel class of antitumoral agents. To engineer such viruses infectivity can be coupled with proteolytic activity of the target cell by modifying the envelope (Env) protein of murine leukaemia virus (MLV) with blocking domains that prevent cell entry unless they are cleaved off by tumour-associated proteases like the matrix metalloproteases (MMP). Here we show that MLV variants selectively spreading through MMP-positive cells can be evolved from virus libraries, in which a standard MMP-2 substrate peptide connecting the blocking domain CD40L with the Env protein was diversified. Passaging the virus library on human fibrosarcoma or glioma cell lines resulted in the selection of about 10 virus clones, of which the three most frequent ones were shown to become activated by MMPs and to be replication competent on MMP-positive cells only. On these cells, the selected linker peptides improved the spreading by several orders of magnitude in vitro, as well as in tumour xenografts in vivo, approaching the kinetic of the unmodified wild-type virus. The data suggest that retroviral protease substrate libraries form a potent tool for the engineering of viruses conditionally replicating in a given cancer cell type of interest.

Indexed as

Gene LibraryAnimalsBlotting, WesternGene TargetingGenetic VectorsGene Transfer TechniquesHumansMatrix MetalloproteinasesMiceMice, SCIDNeoplasmsNeoplasm TransplantationPlasmidsRetroviridaeTropismTumor Cells, CulturedMatrix Metalloproteinases

Identifiers

PMID15716977
OpenAlexW2083982701

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.