Evidence map›Paper›PMID 21686134›Full record

ArticleInternational journal of clinical and experimental medicine2011

Development of targeted therapy for bladder cancer mediated by a double promoter plasmid expressing diphtheria toxin under the control of IGF2-P3 and IGF2-P4 regulatory sequences.

Doron Amit, Sagi Tamir, Tatiana Birman, Ofer N Gofrit, Abraham Hochberg

Open access · greenAbstract read
In one paragraph

Article in International journal of clinical and experimental medicine, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed
5.4field-weighted citation impact, top 5% 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

20 citing papers in PubMed, 35 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Experimental Study of Potential CD8BioMed research international · 2022
    Article
  5. Article
  6. Long noncoding RNAAging · 2019
    Article
  7. Review
  8. Exploring Cytotoxic mRNAs as a Novel Class of Anti-cancer Biotherapeutics.Molecular therapy. Methods & clinical development · 2018
    Article
  9. Article
  10. Review
  11. Review
  12. Article
  13. Review
  14. Article
  15. Killing of cancer cells through the use of eukaryotic expression vectors harbouring genes encoding nucleases and ribonuclease inhibitor.Tumour biology : the journal of the International Society for Oncodevelopmental Biology and Medicine · 2015
    Review
  16. Evidence that Igf2 down-regulation in postnatal tissues and up-regulation in malignancies is driven by transcription factor E2f3.Proceedings of the National Academy of Sciences of the United States of America · 2013
    Article
  17. Article
  18. Review
  19. 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

5 authors.

Doron Amit
Sagi Tamir
Tatiana Birman
Ofer N Gofrit
Abraham Hochberg

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe human IGF2-P3 and IGF2-P4 promoters are highly active in bladder carcinoma, while existing at a nearly undetectable level in the surrounding normal tissue. A double promoter DTA-expressing vector was created, carrying on a single construct two separate genes expressing diphtheria toxin A-fragment (DTA), from two different regulatory sequences, selected from the cancer-specific promoters IGF2-P3 and IGF2-P4.

methodsIGF2-P3 and IGF2-P4 expression was tested in samples of urothelial carcinoma (UC) of the bladder (n=67) by RT-PCR or by ISH. The therapeutic potential of single promoter expression vectors (P3-DTA and P4-DTA) was tested and compared to the double promoter toxin vector P4-DTA-P3-DTA in UC cell lines and in heterotopic and orthotopic animal models for bladder cancer.

resultsNearly 86% of UC patients highly expressed IGF2-P4 and IGF2-P3, as determined by ISH. The double promoter vector (P4-DTA-P3-DTA) exhibited superior ability to inhibit tumor development by 68% (P=0.004) compared to the single promoter expression vectors, in heterotopic bladder tumors. The average size of the P4-DTA-P3-DTA bladder tumors (in orthotopically treated mice) was 83% smaller (P<0.001) than that of the control group.

conclusionsOverall, the double promoter vector exhibited enhanced anti-cancer activity relative to single promoter expression vectors carrying either gene alone. Our findings show that bladder tumors may be successfully treated by intravesical instillation of the double promoter vector P4-DTA-P3-DTA.

Indexed as

bladder cancer cellscancerIGF2targeted cancer therapy

Identifiers

PMID21686134
PMCPMC3113498
OpenAlexW1534691359

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.