Evidence map›Paper›PMID 32101539›Full record

ArticlePloS one2020

In vitro evaluations on canine monocyte-derived dendritic cells of a nanoparticles delivery system for vaccine antigen against Echinococcus granulosus.

Nadège Milhau, Eyad Almouazen, Sylvie Bouteille, Imène Hellel-Bourtal, Samira Azzouz-Maache, Uruguaysito Benavides, Anne-Françoise Petavy, Thierry Marchal

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed
3.9field-weighted citation impact, top 6% 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

7 citing papers in PubMed, 31 citations in OpenAlex.

  1. Article
  2. Review
  3. Article
  4. Article
  5. The RecombinantFrontiers in immunology · 2022
    Article
  6. Review
  7. 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

8 authors at 2 institutions in 2 countries.

Nadège MilhauUniversité de Lyon, VetAgro Sup, UPSP ICE 2011.03.101, Marcy L'Etoile, France.
Eyad AlmouazenUniv Lyon, Université Claude Bernard Lyon 1, CNRS, LAGEPP UMR 5007, Villeurbanne, France.
Sylvie BouteilleUniversité de Lyon, VetAgro Sup, Laboratoire d'Histopathologie, Marcy L'Etoile, France.
Imène Hellel-BourtalUniv Lyon, Université Claude Bernard Lyon 1, CNRS, LAGEPP UMR 5007, Villeurbanne, France.
Samira Azzouz-MaacheISPB-Faculté de Pharmacie, Université Claude-Bernard Lyon 1, Lyon, France.
Uruguaysito BenavidesImmunology Department, Faculty of Veterinary, Universidad de la República, Montevideo, Uruguay.
Anne-Françoise PetavyISPB-Faculté de Pharmacie, Université Claude-Bernard Lyon 1, Lyon, France.
Thierry MarchalUniversité de Lyon, VetAgro Sup, UPSP ICE 2011.03.101, Marcy L'Etoile, France.ORCID 0000-0002-4206-1886
Université Claude Bernard Lyon 1 · FRUniversidad de la República de Uruguay · UY

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Since dogs play a central role in the contamination of humans and livestock with Echinococcus granulosus, the development of an effective vaccine for dogs is essential to control the disease caused by this parasite. For this purpose, a formulation based on biodegradable polymeric nanoparticles (NPs) as delivery system of recombinant Echinococcus granulosus antigen (tropomyosin EgTrp) adjuved with monophosphoryl lipid A (MPLA) has been developed. The obtained nanoparticles had a size of approximately 200 nm in diameter into which the antigen was correctly preserved and encapsulated. The efficiency of this system to deliver the antigen was evaluated in vitro on canine monocyte-derived dendritic cells (cMoDCs) generated from peripheral blood monocytes. After 48 h of contact between the formulations and cMoDCs, we observed no toxic effect on the cells but a strong internalization of the NPs, probably through different pathways depending on the presence or not of MPLA. An evaluation of cMoDCs activation by flow cytometry showed a stronger expression of CD80, CD86, CD40 and MHCII by cells treated with any of the tested formulations or with LPS (positive control) in comparison to cells treated with PBS (negative control). A higher activation was observed for cells challenged with EgTrp-NPs-MPLA compared to EgTrp alone. Formulations with MPLA, even at low ratio of MPLA, give better results than formulations without MPLA, proving the importance of the adjuvant in the nanoparticles structure. Moreover, autologous T CD4+ cell proliferation observed in presence of cMoDCs challenged with EgTrp-NPs-MPLA was higher than those observed after challenged with EgTrp alone (p<0.05). These first results suggest that our formulation could be used as an antigen delivery system to targeting canine dendritic cells in the course of Echinococcus granulosus vaccine development.

Indexed as

Adjuvants, ImmunologicAnimalsAntigens, ProtozoanCD4-Positive T-LymphocytesCell DifferentiationCell ProliferationCells, CulturedDendritic CellsDogsDrug CarriersEchinococcosisEchinococcus granulosusImmunogenicity, VaccineLipid ALymphocyte ActivationMonocytesAdjuvants, ImmunologicAntigens, ProtozoanDrug CarriersLipid Amonophosphoryl lipid APolyesterspoly(lactide)Protozoan VaccinesTropomyosinVaccines, Synthetic

Identifiers

PMID32101539
PMCPMC7043750
OpenAlexW3007801384

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.