Evidence map›Paper›PMID 27558018›Full record

ArticleAMB Express2016

Angiogenic inhibitors delivered by the type III secretion system of tumor-targeting Salmonella typhimurium safely shrink tumors in mice.

Lei Shi, Bin Yu, Chun-Hui Cai, Jian-Dong Huang

Open access · goldAbstract read
In one paragraph

Article in AMB Express, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
3.7field-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

18 citing papers in PubMed, 33 citations in OpenAlex.

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  8. Recombinant AttenuatedCancers · 2022
    Review
  9. Review
  10. Use ofFrontiers in oncology · 2021
    Review
  11. Review
  12. Article
  13. Bacteria-cancer interactions: bacteria-based cancer therapy.Experimental & molecular medicine · 2019
    Review
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  16. Review
  17. Article
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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

4 authors at 3 institutions in 2 countries.

Lei ShiFaculty of Medicine, School of Biomedical Sciences, The University of Hong Kong, L3-72, Laboratory Block, 21 Sassoon Road, Pokfulam, Hong Kong.
Bin YuFaculty of Medicine, School of Biomedical Sciences, The University of Hong Kong, L3-72, Laboratory Block, 21 Sassoon Road, Pokfulam, Hong Kong.
Chun-Hui CaiDepartment of Obstetrics and Gynaecology, The University of Hong Kong, Pokfulam, Hong Kong.
Jian-Dong HuangFaculty of Medicine, School of Biomedical Sciences, The University of Hong Kong, L3-72, Laboratory Block, 21 Sassoon Road, Pokfulam, Hong Kong. jdhuang@hku.hk.
University of Hong Kong · HKCity University of Hong Kong, Shenzhen Research Institute · CNTongji University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Despite of a growing number of bacterial species that apparently exhibit intrinsic tumor-targeting properties, no bacterium is able to inhibit tumor growth completely in the immunocompetent hosts, due to its poor dissemination inside the tumors. Oxygen and inflammatory reaction form two barriers and restrain the spread of the bacteria inside the tumors. Here, we engineered a Salmonella typhimurium strain named ST8 which is safe and has limited ability to spread beyond the anaerobic regions of tumors. When injected systemically to tumor-bearing immunocompetent mice, ST8 accumulated in tumors at levels at least 100-fold greater than parental obligate anaerobic strain ST4. ST8/pSEndo harboring therapeutic plasmids encoding Endostatin fused with a secreted protein SopA could target vasculature at the tumor periphery, can stably maintain and safely deliver a therapeutic vector, release angiogenic inhibitors through a type III secretion system (T3SS) to interfere with the pro-angiogenic action of growth factors in tumors. Mice with murine CT26 colon cancer that had been injected with ST8/pSEndo showed efficient tumor suppression by inducing more severe necrosis and inhibiting blooding vessel density within tumors. Our findings provide a therapeutic platform for indirectly acting therapeutic strategies such as anti-angiogenesis and immune therapy.

Indexed as

Anti-angiogenesisBacterial cancer therapySalmonella typhimuriumTumor-targetingType III secretion systemViable region

Identifiers

PMID27558018
PMCPMC4996802
OpenAlexW2512585896

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.