Evidence map›Paper›PMID 19020110›Full record

ArticleClinical and vaccine immunology : CVI2009

Construction and characterization of an attenuated Listeria monocytogenes strain for clinical use in cancer immunotherapy.

Anu Wallecha, Paulo Cesar Maciag, Sandra Rivera, Yvonne Paterson, Vafa Shahabi

Open access · diamondAbstract read
In one paragraph

Article in Clinical and vaccine immunology : CVI, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 35 papers.

0numbers the graph read from it
0cells of the map it votes in
35citing papers in PubMed
1.9field-weighted citation impact, top 14% 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

35 citing papers in PubMed, 70 citations in OpenAlex.

  1. Review
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  9. Bacteria-Based Nanoprobes for Cancer Therapy.International journal of nanomedicine · 2024
    Review
  10. [Sichuan da xue xue bao. Yi xue ban = Journal of Sichuan University. Medical science edition · 2023
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  11. Engineering living therapeutics with synthetic biology.Nature reviews. Drug discovery · 2021
    Review
  12. Article
  13. Current clinical microbiology reports · 2019
    Article
  14. Vaccines · 2018
    Review
  15. Review
  16. Review
  17. Review
  18. Article
  19. Review
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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

5 authors at 2 institutions in 1 country.

Anu WallechaResearch and Development, Advaxis Inc., 675 US Highway One, Suite 120, Technology Center of New Jersey, North Brunswick, NJ 08902, USA. wallecha@advaxis.com
Paulo Cesar Maciag
Sandra Rivera
Yvonne Paterson
Vafa Shahabi
Advaxis (United States) · USUniversity of Pennsylvania · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Listeria monocytogenes has been exploited previously as a vaccine vector for the delivery of heterologous proteins such as tumor-specific antigens for active cancer immunotherapy. However, for effective use of live vector in clinics, safety is a major concern. In the present study, we describe an irreversibly attenuated and highly immunogenic L. monocytogenes platform, the L. monocytogenes dal-, dat-, and actA-deleted strain that expresses the human prostate-specific antigen (PSA) using an antibiotic resistance marker-free plasmid (the dal dat DeltaactA 142 strain expressing PSA). Despite limited in vivo survival, the dal dat DeltaactA 142 strain was able to elicit efficient immune responses required for tumor clearance. Our results showed that immunization of mice with the dal dat DeltaactA 142 strain caused the regression of the tumors established by the prostate adenocarcinoma cell line expressing PSA. An evaluation of immunologic potency indicated that the dal dat DeltaactA 142 strain elicits a high frequency of PSA-specific immune responses. Interestingly, immunization with the dal dat DeltaactA 142 strain induced significant infiltration of PSA-specific T cells in the intratumoral milieu. Collectively, our data suggest that the dal dat DeltaactA 142 strain is a safe and potent vector for clinical use and that this platform may be further exploited as a potential candidate to express other single or multiple antigens for cancer immunotherapy.

Indexed as

AdenocarcinomaAnimalsCancer VaccinesGene DeletionGenes, BacterialImmunotherapyListeria monocytogenesMaleMiceMice, Inbred C57BLMice, KnockoutNeoplasmsPlasmidsProstate-Specific AntigenSurvival AnalysisVaccines, AttenuatedCancer VaccinesProstate-Specific AntigenVaccines, Attenuated

Identifiers

PMID19020110
PMCPMC2620657
OpenAlexW2148070717

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.