Evidence map›Paper›PMID 23463096›Full record

ArticleJournal of cancer research and clinical oncology2013

Delivery of the co-expression plasmid pEndo-Si-Stat3 by attenuated Salmonella serovar typhimurium for prostate cancer treatment.

Xin Li, Yang Li, Bo Wang, Kun Ji, Zuowen Liang, Baofeng Guo, Jiadi Hu, Di Yin, Yanwei Du, Dennis J Kopecko and 4 more

Open access · greenAbstract read
In one paragraph

Article in Journal of cancer research and clinical oncology, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
3.1field-weighted citation impact, top 11% 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

11 citing papers in PubMed, 26 citations in OpenAlex.

  1. Recombinant AttenuatedCancers · 2022
    Review
  2. Article
  3. Article
  4. Optimized AttenuatedFrontiers in microbiology · 2021
    Article
  5. Targeting ProgrammedCancers · 2019
    Review
  6. Article
  7. Review
  8. Article
  9. Article
  10. Article
  11. 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

14 authors at 4 institutions in 2 countries.

Xin LiDepartment of Pathophysiology, Prostate Diseases Prevention and Treatment Research Center, Norman Bethune Medical School, Jilin University, Xinmin Street, Changchun, 130021, People's Republic of China.
Yang Li
Bo Wang
Kun Ji
Zuowen Liang
Baofeng Guo
Jiadi Hu
Di Yin
Yanwei Du
Dennis J Kopecko
Dhananjaya V Kalvakolanu
Xuejian Zhao
Deqi Xu
Ling Zhang
Jilin University · CNUniversity of Maryland, Baltimore · USCenter for Biologics Evaluation and Research · USNational Vaccine and Serum Institute · CN

Funding

MODULATION OF IFN ACTION VIA NOVEL REGULATORY FACTORSR01CA078282 · NCI · UNIVERSITY OF MARYLAND BALTIMORE · PI KALVAKOLANU, DHAN V. · 1998 to 2014
$4.4M
Cytokine modulated novel growth inhibitory mechanismsR01CA105005 · NCI · UNIVERSITY OF MARYLAND BALTIMORE · PI KALVAKOLANU, DHAN V. · 2004 to 2013
$2.7M
NCI NIH HHS CA105005NCI NIH HHS CA78282NCI NIH HHS R01 CA078282NCI NIH HHS R01 CA105005
6 · The paper itself

Abstract

objectivesTo investigate the therapeutic utility of an attenuated bacterium carrying a plasmid that co-expresses Endostatin, an inhibitor of tumor neovasculogenesis, and a shRNA that targets Stat3 to suppress prostate cancer growth.

methodsPlasmid pEndo-Si-Stat3 was constructed and introduced into an attenuated strain of Salmonella enterica serovar typhimurium. The resultant recombinant bacterium was used as a vector to deliver the plasmid to tumor cells growing in vivo. Tumor-associated gene and protein expression changes were measured by using RT-PCR and Western blot analyses. Expression of Endostatin in tumor tissue was detected by ELISA. The presence of vector bacteria in tissues was monitored and tumor destruction was assessed by using TUNEL and H&E staining assays.

resultsBacterially delivered pEndo-Si-Stat3 decreased Stat3 levels and increased Endostatin expression in mouse tumors, resulting in a significant suppression of tumor growth (P < 0.01). Expression of Bcl-2 and PCNA was down-regulated and Caspase3 expression was up-regulated to promote apoptosis of tumor cells.

conclusionsSuccessful delivery by attenuated Salmonella of the combination therapeutic plasmid simultaneously knocked down the expression of Stat3 and resulted in over-expression of Endostatin, which synergistically inhibited prostate cancer growth.

Indexed as

Gene Transfer TechniquesAnimalsAntigens, CD34ApoptosisBlotting, WesternCell Line, TumorCombined Modality TherapyEndostatinsGene ExpressionGenetic TherapyGenetic VectorsImmunohistochemistryMaleMiceMice, Inbred C57BLPlasmidsAntigens, CD34EndostatinsRNA, Small InterferingSTAT3 Transcription FactorVascular Endothelial Growth Factor A

Identifiers

PMID23463096
PMCPMC3874139
OpenAlexW2023228659

What OpenQuestion holds

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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.