Evidence map›Paper›PMID 20389288›Full record

ArticleMolecular therapy : the journal of the American Society of Gene Therapy2010

Orally administered bifidobacteria as vehicles for delivery of agents to systemic tumors.

Michelle Cronin, David Morrissey, Simon Rajendran, Shereen M El Mashad, Douwe van Sinderen, Gerald C O'Sullivan, Mark Tangney

Open access · bronzeAbstract read
In one paragraph

Article in Molecular therapy : the journal of the American Society of Gene Therapy, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 56 papers.

0numbers the graph read from it
0cells of the map it votes in
56citing papers in PubMed
7.1field-weighted citation impact, top 3% 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

56 citing papers in PubMed, 113 citations in OpenAlex.

  1. Programmable genetic control of tumor-colonizingbioRxiv : the preprint server for biology · 2026
    Article
  2. Article
  3. Review
  4. Micro/Nano-Motors for Enhanced Tumor Diagnosis and Therapy.International journal of molecular sciences · 2025
    Review
  5. EngineeredCancers · 2025
    Review
  6. Article
  7. Review
  8. Article
  9. Review
  10. Review
  11. Review
  12. Article
  13. Review
  14. Review
  15. Pharmaceutics · 2023
    Article
  16. Refined control of CRISPR-Cas9 gene editing inFrontiers in immunology · 2023
    Article
  17. Review
  18. Review
  19. Microbiome in drug resistance to colon cancer.Current opinion in physiology · 2021
    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

7 authors at 2 institutions in 1 country.

Michelle CroninCork Cancer Research Centre, Mercy University Hospital and Leslie C. Quick Jnr. Laboratory, University College Cork, Cork, Ireland.
David Morrissey
Simon Rajendran
Shereen M El Mashad
Douwe van Sinderen
Gerald C O'Sullivan
Mark Tangney
University College Cork · IEMercy University Hospital · IE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Certain bacteria have emerged as biological gene vectors with natural tumor specificity, capable of specifically delivering genes or gene products to the tumor environment when intravenously (i.v.) administered to rodent models. We show for the first time that oral administration of bacteria to mice resulted in their translocation from the gastrointestinal tract (GIT) with subsequent homing to and replication specifically in tumors. The commensal, nonpathogenic Bifidobacterium breve UCC2003 harboring a plasmid expressing lux fed to mice bearing subcutaneous (s.c.) tumors were readily detected specifically in tumors, by live whole-body imaging, at levels similar to i.v. administration. Reporter gene expression was visible for >2 weeks in tumors. Mice remained healthy throughout experiments. Cytokine analyses indicated a significant upregulation of interferon-gamma (IFN-gamma) in the GIT of bifidobacteria-fed mice, which is associated with increases in epithelial permeability. However, B. breve feeding did not increase systemic levels of other commensal bacteria. The presence of tumor was not necessary for translocation to systemic organs to occur. These findings indicate potential for safe and efficient gene-based treatment and/or detection of tumors via ingestion of nonpathogenic bacteria expressing therapeutic or reporter genes.

Indexed as

Administration, OralAnimalsBifidobacteriumCytokinesEnzyme AssaysEnzyme-Linked Immunosorbent AssayFemaleFlow CytometryGastrointestinal TractGenetic VectorsImmunity, CellularImmunity, HumoralInterferon-gammaMelanoma, ExperimentalMiceMice, Inbred C57BLCytokinesInterferon-gamma

Identifiers

PMID20389288
PMCPMC2911250
OpenAlexW2124662953

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.