Evidence map›Paper›PMID 23922014›Full record

ArticleMolecular therapy : the journal of the American Society of Gene Therapy2013

Engineering of bacteria for the visualization of targeted delivery of a cytolytic anticancer agent.

Sheng-Nan Jiang, Seung-Hwan Park, Hee Jung Lee, Jin Hai Zheng, Hyung-Seok Kim, Hee-Seung Bom, Yeongjin Hong, Michael Szardenings, Myung Geun Shin, Sun-Chang Kim and 3 more

Open access · bronzeAbstract read
In one paragraph

Article in Molecular therapy : the journal of the American Society of Gene Therapy, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 80 papers.

0numbers the graph read from it
0cells of the map it votes in
80citing papers in PubMed
6.9field-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

80 citing papers in PubMed, 143 citations in OpenAlex.

  1. Review
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  3. Article
  4. EngineeredMolecular therapy. Oncology · 2026
    Article
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20 more citing papers are in PubMed but not listed here.

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

13 authors at 6 institutions in 3 countries.

Sheng-Nan Jiang1] Laboratory of In Vivo Molecular Imaging, Chonnam National University Hwasun Hospital, Hwasun, Republic of Korea [2] Department of Nuclear Medicine, Haikou Hospital Affiliated to Xiangya School of Medicine, Central South University, China.
Seung-Hwan Park
Hee Jung Lee
Jin Hai Zheng
Hyung-Seok Kim
Hee-Seung Bom
Yeongjin Hong
Michael Szardenings
Myung Geun Shin
Sun-Chang Kim
Vasilis Ntziachristos
Hyon E Choy
Jung-Joon Min
Chonnam National University · KRChonnam National University Hwasun Hospital · KRFraunhofer Institute for Cell Therapy and Immunology · DEGreen Cross (South Korea) · KRKorea Advanced Institute of Science and Technology · KRTechnical University of Munich · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

A number of recent reports have demonstrated that attenuated Salmonella typhimurium are capable of targeting both primary and metastatic tumors. The use of bacteria as a vehicle for the delivery of anticancer drugs requires a mechanism that precisely regulates and visualizes gene expression to ensure the appropriate timing and location of drug production. To integrate these functions into bacteria, we used a repressor-regulated tetracycline efflux system, in which the expression of a therapeutic gene and an imaging reporter gene were controlled by divergent promoters (tetAP and tetRP) in response to extracellular tetracycline. Attenuated S. typhimurium was transformed with the expression plasmids encoding cytolysin A, a therapeutic gene, and renilla luciferase variant 8, an imaging reporter gene, and administered intravenously to tumor-bearing mice. The engineered Salmonella successfully localized to tumor tissue and gene expression was dependent on the concentration of inducer, indicating the feasibility of peripheral control of bacterial gene expression. The bioluminescence signal permitted the localization of gene expression from the bacteria. The engineered bacteria significantly suppressed both primary and metastatic tumors and prolonged survival in mice. Therefore, engineered bacteria that carry a therapeutic and an imaging reporter gene for targeted anticancer therapy can be designed as a theranostic agent.

Indexed as

AnimalsCell Line, TumorDoxycyclineGenes, ReporterGenetic EngineeringGenetic TherapyHumansLuminescent MeasurementsLung NeoplasmsMaleMiceMice, Inbred BALB CNeoplasm MetastasisPerforinPromoter Regions, GeneticSalmonella typhimuriumDoxycyclinePerforin

Identifiers

PMID23922014
PMCPMC3831040
OpenAlexW2097503372

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.