Evidence map›Paper›PMID 11526456›Full record

ArticleGene therapy2001

Evidence for nonspecific adsorption of targeted retrovirus vector particles to cells.

M Pizzato, E D Blair, M Fling, J Kopf, A Tomassetti, R A Weiss, Y Takeuchi

Abstract read
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In one paragraph

Article in Gene therapy, 2001. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed
3.2field-weighted citation impact, top 8% 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

22 citing papers in PubMed, 58 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Cell entry of enveloped viruses.Advances in genetics · 2011
    Review
  9. Article
  10. Article
  11. Cell carriers for oncolytic viruses: Fed Ex for cancer therapy.Molecular therapy : the journal of the American Society of Gene Therapy · 2009
    Review
  12. Article
  13. Article
  14. Article
  15. Cyclophosphamide facilitates antitumor efficacy against subcutaneous tumors following intravenous delivery of reovirus.Clinical cancer research : an official journal of the American Association for Cancer Research · 2008
    Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. The Trojan exosome hypothesis.Proceedings of the National Academy of Sciences of the United States of America · 2003
    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 2 institutions in 2 countries.

M PizzatoWohl Virion Centre, Windeyer Institute of Medical Sciences, University College London, UK.
E D Blair
M Fling
J Kopf
A Tomassetti
R A Weiss
Y Takeuchi
University College London · GBFondazione IRCCS Istituto Nazionale dei Tumori · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The ability to specifically target a cell-type is important for the development of vectors for in vivo gene therapy. In order to produce retrovirus vectors targeting ovarian cancer cells, which specifically overexpress alpha folate receptor (alphaFR), a single chain antibody was fused as an N-terminal extension of the ecotropic and amphotropic murine leukemia virus (MLV) envelope glycoproteins. Vector particles bearing the modified glycoproteins were produced and analysed. Although conventional FACS studies indicated that viral particles bearing the modified Env could bind to ovarian cancer cells, targeted infection was not achieved. The initial step of virus-cell interaction was further studied using an immunofluorescence technique, which allows visualisation of single retrovirus particles. Vectors bearing chimeric or wild-type glycoproteins bound equally well to cells with or without the targeted receptor, although soluble chimeric glycoproteins bound specifically to FBP. Our results indicate that the incorporation of specific ligands to the virus envelope does not necessarily result in significant enhancement of vector particle binding. A similar interaction was also observed using Env-defective virus particles, suggesting that cellular factors incorporated into the lipid envelope play a dominant role in promoting initial adsorption of virus particles to cells. Significant implications arise from these observations on the interpretation of previous reports on 'targeted' vectors, and for the development of vectors for in vivo gene therapy protocols.

Indexed as

Receptors, Cell Surface3T3 CellsAdsorptionAnimalsAntibodies, MonoclonalBlotting, WesternCarrier ProteinsFemaleFlow CytometryFolate Receptors, GPI-AnchoredGenes, ImmunoglobulinGene TargetingGenetic EngineeringGenetic TherapyGenetic VectorsImmunoglobulin FragmentsAntibodies, MonoclonalCarrier ProteinsFolate Receptors, GPI-AnchoredImmunoglobulin FragmentsImmunoglobulin Variable RegionReceptors, Cell Surface

Identifiers

PMID11526456
OpenAlexW2322528816

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.