Evidence map›Paper›PMID 18369382›Full record

ArticleCancer gene therapy2008

Tumor-targeting prodrug-activating bacteria for cancer therapy.

C-M Cheng, Y-L Lu, K-H Chuang, W-C Hung, J Shiea, Y-C Su, C-H Kao, B-M Chen, S Roffler, T-L Cheng

Abstract read
PubMed Publisher
In one paragraph

Article in Cancer gene therapy, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 30 papers.

0numbers the graph read from it
0cells of the map it votes in
30citing papers in PubMed
4.0field-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

30 citing papers in PubMed, 86 citations in OpenAlex.

  1. Review
  2. Review
  3. Designing live bacterial therapeutics for cancer.Advanced drug delivery reviews · 2025
    Review
  4. EngineeredInternational journal of nanomedicine · 2025
    Article
  5. Exploiting bacteria for cancer immunotherapy.Nature reviews. Clinical oncology · 2024
    Review
  6. Article
  7. Review
  8. Review
  9. Article
  10. Review
  11. Review
  12. [Nan fang yi ke da xue xue bao = Journal of Southern Medical University · 2021
    Article
  13. Review
  14. Article
  15. Bacteria-cancer interactions: bacteria-based cancer therapy.Experimental & molecular medicine · 2019
    Review
  16. Tumor vascular infarction: prospects and challenges.International journal of hematology · 2017
    Review
  17. Article
  18. Article
  19. Article
  20. Bioluminescent bacterial imaging in vivo.Journal of visualized experiments : JoVE · 2012
    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

10 authors at 4 institutions in 1 country.

C-M ChengGraduate Institute of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan.
Y-L Lu
K-H Chuang
W-C Hung
J Shiea
Y-C Su
C-H Kao
B-M Chen
S Roffler
T-L Cheng
Kaohsiung Medical University · TWInstitute of Biomedical Sciences, Academia Sinica · TWNational Sun Yat-sen University · TWChia Nan University of Pharmacy and Science · TW

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Increasing the specificity of chemotherapy may improve the efficacy of cancer treatment. Toward this aim, we developed a strain of bacteria to express enzymes for selective prodrug activation and non-invasive imaging in tumors. beta-glucuronidase and the luxCDABE gene cluster were expressed in the DH5alpha strain of Escherichia coli to generate DH5alpha-lux/betaG. These bacteria emitted light for imaging and hydrolyzed the glucuronide prodrug 9ACG to the topoisomerase I inhibitor 9-aminocamptothecin (9AC). By optical imaging, colony-forming units (CFUs) and staining for betaG activity, we found that DH5alpha-lux/betaG preferentially localized and replicated within CL1-5 human lung tumors in mice. The intensity of luminescence, CFU and betaG activity increased with time, indicating bacterial replication occurred in tumors. In comparison with DH5alpha-lux/betaG, 9AC or 9ACG treatment, combined systemic administration of DH5alpha-lux/betaG followed by 9ACG prodrug treatment significantly (P<0.005) delayed the growth of CL1-5 tumors. Our results demonstrate that prodrug-activating bacteria may be useful for selective cancer chemotherapy.

Indexed as

AnimalsBacteriaGlucuronidaseGlucuronidesHumansModels, BiologicalNeoplasmsProdrugsGlucuronidaseGlucuronidesProdrugs

Identifiers

PMID18369382
OpenAlexW2020291295

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.