Evidence map›Paper›PMID 19584282›Full record

ArticleCancer research2009

High efficacy of a Listeria-based vaccine against metastatic breast cancer reveals a dual mode of action.

Sun Hee Kim, Francisco Castro, Yvonne Paterson, Claudia Gravekamp

Open access · bronzeAbstract read
In one paragraph

Article in Cancer research, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 110 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
110citing papers in PubMed, 1 pooled it
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

110 citing papers in PubMed, 1 synthesis or guideline pooled it, 203 citations in OpenAlex.

  1. Pooled it
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  16. Designing live bacterial therapeutics for cancer.Advanced drug delivery reviews · 2025
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  20. Preliminary Exploration ofAnimals : an open access journal from MDPI · 2025
    Article

50 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

4 authors at 3 institutions in 1 country.

Sun Hee KimCalifornia Pacific Medical Center Research Institute, San Francisco, California, USA.
Francisco Castro
Yvonne Paterson
Claudia Gravekamp
California Pacific Medical Center · USUniversity of Pennsylvania · USYeshiva University · US

Funding

DNA vaccines for metastatic breat cancer at old ageR01AG023096 · NIA · UNIVERSITY OF TEXAS HLTH SCI CTR SAN ANT · PI GRAVEKAMP, CLAUDIA · 2004 to 2010
$1.2M
New Approaches to Prevent or Treat Breast Cancer MetastasesR21CA129470 · NCI · CALIFORNIA PACIFIC MED CTR RES INSTITUTE · PI GRAVEKAMP, CLAUDIA · 2008 to 2009
$414k
NCI NIH HHS R21 CA129470NIA NIH HHS 1R01 AG023096-01NIA NIH HHS R01 AG023096
6 · The paper itself

Abstract

Most cancer vaccines induce CTL responses to tumor-associated antigens (TAA). Killing of tumor cells occurs through TAA-specific CTL-mediated cytolysis. Here, we show that one preventive followed by two therapeutic immunizations with an attenuated Listeria monocytogenes (LM)-based vaccine eradicates all metastases and almost the entire primary tumor in the syngeneic, aggressive mouse breast tumor model 4T1. We provide strong evidence that this is due to the combined result of direct kill by Listeria infecting the tumor cells and by CTL responses against Listeria antigens. We showed by electron microscopy that LM expressing truncated listeriolysin O (LLO) and amino acid fragments 311 to 660 of TAA Mage-b (LM-LLO-Mage-b(311-660)) and the control strain LM-LLO infect tumor cells in vitro and in vivo. In vitro data indicate that tumor cell death occurs through activation of NADP(+) oxidase and increased intracellular Ca(2+) levels, both resulting in the production of high ROS levels. Because both LM-LLO and LM-LLO-Mage-b(311-660) showed equally strong efficacies in vivo, we concluded that LM-LLO was crucial and Mage-b was of less importance. We found strong CTL responses to LM-LLO in the spleen, and depletion of CD8 T cells in vivo resulted in significant tumor regrowth (52%) in LM-LLO-vaccinated mice, indicating that LM-LLO-specific CTL indeed partially contributed to tumor cell kill in vivo. This dual mode of action of a Listeria-based vaccine has not been described before and may provide new directions in the development of more effective vaccines against metastatic breast cancer.

Indexed as

AnimalsBacterial ToxinsBreast NeoplasmsCalciumCancer VaccinesCell Line, TumorCell SurvivalHeat-Shock ProteinsHemolysin ProteinsHost-Pathogen InteractionsHumansImmunizationListeria monocytogenesMammary Neoplasms, ExperimentalMiceMicroscopy, ElectronBacterial ToxinsCalciumCancer VaccinesHeat-Shock ProteinsHemolysin ProteinshlyA protein, Listeria monocytogenesNADPH OxidasesReactive Oxygen SpeciesVaccines, Attenuated

Identifiers

PMID19584282
PMCPMC3127451
OpenAlexW2129918247

What OpenQuestion holds

Textmetadata
LicenceTDM
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.