Evidence map›Paper›PMID 23928731›Full record

ArticleCancer gene therapy2013

The role of cyclophosphamide in enhancing antitumor efficacy of an adenovirus oncolytic vector in subcutaneous Syrian hamster tumors.

B A Young, J F Spencer, B Ying, A E Tollefson, K Toth, W S M Wold

Open access · bronzeAbstract read
In one paragraph

Article in Cancer gene therapy, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
2.6field-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

16 citing papers in PubMed, 22 citations in OpenAlex.

  1. Article
  2. Review
  3. Therapeutic Applications for Oncolytic Self-Replicating RNA Viruses.International journal of molecular sciences · 2022
    Review
  4. Article
  5. Article
  6. Review
  7. Review
  8. Article
  9. Review
  10. Predictive and Prognostic Clinical Variables in Cancer Patients Treated With Adenoviral Oncolytic Immunotherapy.Molecular therapy : the journal of the American Society of Gene Therapy · 2016
    Article
  11. Article
  12. Article
  13. Article
  14. Review
  15. Article
  16. 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

6 authors at 1 institution in 1 country.

B A YoungDepartment of Molecular Microbiology and Immunology, Saint Louis University School of Medicine, St Louis, MO, USA.
J F Spencer
B Ying
A E Tollefson
K Toth
W S M Wold
Saint Louis University · US

Funding

Hamster Model for Oncolytic Adenovirus VectorsR01CA118022 · NCI · SAINT LOUIS UNIVERSITY · PI WOLD, WILLIAM SM · 2006 to 2010
$1.3M
NCI NIH HHS CA118022NCI NIH HHS R01 CA118022
6 · The paper itself

Abstract

We have previously reported that intratumoral injection of VRX-007--an Ad5 (a species C adenovirus)-based vector overexpressing adenovirus death protein--can suppress the growth of subcutaneous HaK (hamster renal cancer) tumors. VRX-007 replication and tumor growth inhibition are enhanced when the hamsters are immunosuppressed by a high dose of cyclophosphamide (CP), an immunosuppressive and chemotherapeutic agent. Here, we report that continuous immunosuppression with CP was not required for increased oncolytic activity of VRX-007 because short-term dosing or continuous dosing with the drug yielded similar antitumor results. Prolonged viral replication was found only in animals on continuous CP treatment. We used 007-Luc, a replication-competent, luciferase-expressing vector similar to VRX-007, to investigate the replication of the vector over time. Tumor growth inhibition was similar in hamsters given CP treatment either 1 week before or 1 week after 007-Luc injection, which suggests that CP exerts its antitumor efficacy independently of vector therapy. 007-Luc did not spread far from the inoculation site, even in immunosuppressed, CP-treated animals. Our results indicate that the enhanced effectiveness that is produced by the combination of VRX-007 and CP therapies is due to their two independent mechanisms and that they do not have to be given simultaneously for the improved outcome.

Indexed as

AdenoviridaeAnimalsAntineoplastic Agents, AlkylatingCell Line, TumorCricetinaeCyclophosphamideFemaleGene ExpressionGene OrderGenes, ReporterGenetic VectorsHumansNeoplasmsOncolytic VirotherapyOncolytic VirusesVirus ReplicationAntineoplastic Agents, AlkylatingCyclophosphamide

Identifiers

PMID23928731
PMCPMC3778155
OpenAlexW2082104130

What OpenQuestion holds

Textmetadata
LicenceTDM
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.