Evidence map›Paper›PMID 21698427›Full record

ArticleJournal of molecular medicine (Berlin, Germany)2011

Cancer suicide gene therapy with TK.007: superior killing efficiency and bystander effect.

Ellen Preuss, Alexander Muik, Kristoffer Weber, Jürgen Otte, Dorothee von Laer, Boris Fehse

Abstract read
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In one paragraph

Article in Journal of molecular medicine (Berlin, Germany), 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
2.0field-weighted citation impact, top 13% 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

21 citing papers in PubMed, 40 citations in OpenAlex.

  1. Article
  2. Article
  3. Review
  4. Article
  5. Article
  6. Review
  7. Article
  8. Article
  9. Article
  10. Enzyme/Prodrug Systems for Cancer Gene Therapy.Current pharmacology reports · 2016
    Article
  11. Review
  12. Article
  13. Article
  14. Genetically engineered theranostic mesenchymal stem cells for the evaluation of the anticancer efficacy of enzyme/prodrug systems.Journal of controlled release : official journal of the Controlled Release Society · 2015
    Article
  15. Article
  16. Article
  17. Suicide Gene Therapy for Cancer - Current Strategies.Journal of genetic syndromes & gene therapy · 2013
    Article
  18. Gap junctions and Bystander Effects: Good Samaritans and executioners.Wiley interdisciplinary reviews. Membrane transport and signaling · 2013
    Article
  19. Frontiers in Suicide Gene Therapy of Cancer.Journal of genetic syndromes & gene therapy · 2012
    Article
  20. Review
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

6 authors at 4 institutions in 2 countries.

Ellen PreussResearch Department Cell and Gene Therapy, Clinic for Stem Cell Transplantation, University Medical Centre Hamburg-Eppendorf, Hamburg, Germany.
Alexander Muik
Kristoffer Weber
Jürgen Otte
Dorothee von Laer
Boris Fehse
University Medical Center Hamburg-Eppendorf · DEGeorg Speyer Haus · DEHilfe für krebskranke Kinder Frankfurt · DEInnsbruck Medical University · AT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Suicide gene therapy is a promising concept in oncology. We have recently introduced a novel suicide gene, TK.007, which was shown to excel established herpes simplex virus thymidine kinase (HSVtk) variants when used for donor-lymphocyte modification in adoptive immunotherapy models. Here, the potential of TK.007 in killing cancer cells was studied. Initially, we transduced tumour cell lines derived from different neoplasias (glioblastoma, melanoma, lung cancer, colon cancer) with lentiviral LeGO vectors encoding TK.007 or the splice-corrected (sc)HSVtk together with an eGFP/Neo-marker. Based on direct in vitro comparison, we found that TK.007 facilitates more efficient tumour cell killing at significantly lower ganciclovir doses in all tumour cell lines tested. Also, using different readout systems, we found a significantly stronger bystander effect of TK.007 as compared to scHSVtk. Importantly, in vitro data were confirmed in vivo using a subcutaneous G62 glioblastoma model in NOD/SCID mice. In mice transplanted with scHSVtk-positive tumours, treatment with low (10 mg/kg) or standard (50 mg/kg) ganciclovir doses resulted only in short-term growth inhibition or transient tumour remission, respectively. In striking contrast, in the TK.007 group, all animals achieved continuous complete remission after both standard and low-dose ganciclovir. Finally, a substantial bystander effect for TK.007 was also confirmed with the G62 model in vivo, where significantly prolonged survival for mice bearing tumours containing only 10% or 50% TK.007-expressing cells was observed. In summary, our data indicate strongly improved anti-tumour activity of TK.007 as compared to conventional HSVtk. We therefore suppose that TK.007 is an excellent candidate for cancer suicide gene therapy.

Indexed as

Bystander EffectGenes, Transgenic, SuicideAnimalsAntiviral AgentsCell Line, TumorDose-Response Relationship, DrugGanciclovirGenetic TherapyHumansMiceMice, Inbred NODMice, SCIDNeoplasmsNeoplasm TransplantationSimplexvirusThymidine KinaseAntiviral AgentsGanciclovirThymidine KinaseViral Proteins

Identifiers

PMID21698427
OpenAlexW2035806061

What OpenQuestion holds

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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.