Evidence map›Paper›PMID 23028664›Full record

ArticlePloS one2012

Production of Fibronectin Binding Protein A at the surface of Lactococcus lactis increases plasmid transfer in vitro and in vivo.

Daniela Pontes, Silvia Innocentin, Silvina Del Carmen, Juliana Franco Almeida, Jean-Guy Leblanc, Alejandra de Moreno de Leblanc, Sébastien Blugeon, Claire Cherbuy, François Lefèvre, Vasco Azevedo and 3 more

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed
3.4field-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

20 citing papers in PubMed, 37 citations in OpenAlex.

  1. Current Progress and Challenges in the Study of Adjuvants for Oral Vaccines.BioDrugs : clinical immunotherapeutics, biopharmaceuticals and gene therapy · 2023
    Review
  2. Article
  3. Oral Vaccination of Mice WithFrontiers in microbiology · 2022
    Article
  4. RecombinantJournal of diabetes research · 2021
    Article
  5. Frontiers in microbiology · 2021
    Article
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  12. Review
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  15. 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

13 authors at 6 institutions in 3 countries.

Daniela PontesINRA, UMR1319 Micalis, Jouy-en-Josas, France.
Silvia Innocentin
Silvina Del Carmen
Juliana Franco Almeida
Jean-Guy Leblanc
Alejandra de Moreno de Leblanc
Sébastien Blugeon
Claire Cherbuy
François Lefèvre
Vasco Azevedo
Anderson Miyoshi
Philippe Langella
Jean-Marc Chatel
AgroParisTech · FRMicrobiologie de l’alimentation au service de la santé · FRConsejo Nacional de Investigaciones Científicas y Técnicas · ARUniversidade Federal de Minas Gerais · BRCentro Científico Tecnológico - Tucumán · ARVirologie et Immunologie Moléculaires · FR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Lactococci are noninvasive lactic acid bacteria frequently used as protein delivery vectors and, more recently, as DNA delivery vehicles. We previously showed that Lactococcus lactis (LL) expressing the Fibronectin-Binding Protein A of Staphylococcus aureus (LL-FnBPA+) showed higher internalization rates in vitro in Caco-2 cells than the native (wt) lactococci and were able to deliver a eukaryotic Green Fluorescent Protein (GFP) expression plasmid in 1% of human Caco-2 cells. Here, using the bovine beta-lactoglobulin (BLG), one of the major cow's milk allergen, and GFP we characterized the potential of LL-FnBPA+ as an in vivo DNA vaccine delivery vehicle. We first showed that the invasive strain LL-FnBPA+ carrying the plasmid pValac:BLG (LL-FnBPA+ BLG) was more invasive than LL-BLG and showed the same invasivity as LL-FnBPA+. Then we demonstrated that the Caco-2 cells, co-incubated with LL-FnBPA+ BLG produced up to 30 times more BLG than the Caco-2 cells co-incubated with the non invasive LL-BLG. Using two different gene reporters, BLG and GFP, and two different methods of detection, EIA and fluorescence microscopy, we showed in vivo that: i) in order to be effective, LL-FnBPA+ required a pre-coating with Fetal Calf Serum before oral administration; ii) plasmid transfer occurred in enterocytes without regard to the strains used (invasive or not); iii) the use of LL-FnBPA+ increased the number of mice producing BLG, but not the level of BLG produced. We thus confirmed the good potential of invasive recombinant lactic acid bacteria as DNA delivery vector in vivo.

Indexed as

Adhesins, BacterialAnimalsBiological TransportCaco-2 CellsCattleDNA, ComplementaryEnterocytesFemaleGenetic VectorsGreen Fluorescent ProteinsHumansLactococcus lactisLactoglobulinsMicePlasmidsPromoter Regions, GeneticAdhesins, BacterialDNA, Complementaryfibronectin-binding proteins, bacterialGreen Fluorescent ProteinsLactoglobulinsVaccines, DNA

Identifiers

PMID23028664
PMCPMC3459934
OpenAlexW2086735377

What OpenQuestion holds

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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.