Evidence map›Paper›PMID 34694744›Full record

ArticleIET nanobiotechnology2021

Development and immunobiological evaluation of nanoparticles containing an immunodominant epitope of herpes simplex virus.

Gabriel M Hilario, Fernando B Sulczewski, Raquel Liszbinski, Larissa D Mello, Gustavo Hagen, Tiago Fazolo, Jayme Neto, Eliane Dallegrave, Pedro Romão, Tanira Aguirre and 1 more

Abstract read
In one paragraph

Article in IET nanobiotechnology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
–field-weighted citation impact
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

2 citing papers in PubMed.

  1. Review
  2. 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

11 authors.

Gabriel M HilarioLaboratorio de Imunovirologia, Universidade Federal de Ciências da Saúde de Porto Alegre, Brazil.
Fernando B SulczewskiLaboratorio de Imunovirologia, Universidade Federal de Ciências da Saúde de Porto Alegre, Brazil.ORCID https://orcid.org/0000-0001-5611-6967
Raquel LiszbinskiLaboratorio de Imunovirologia, Universidade Federal de Ciências da Saúde de Porto Alegre, Brazil.
Larissa D MelloLaboratório de Nanotecnologia, Universidade Franciscana, Brazil.
Gustavo HagenLaboratorio de Imunovirologia, Universidade Federal de Ciências da Saúde de Porto Alegre, Brazil.
Tiago FazoloLaboratório de Imunologia Celular e Molecular, Universidade Federal de Ciências da Saúde de Porto Alegre, Brazil.
Jayme NetoLaboratorio de Imunovirologia, Universidade Federal de Ciências da Saúde de Porto Alegre, Brazil.
Eliane DallegraveLaboratório de Pesquisa em Toxicologia, Universidade Federal de Ciências da Saúde de Porto Alegre, Brazil.
Pedro RomãoLaboratório de Imunologia Celular e Molecular, Universidade Federal de Ciências da Saúde de Porto Alegre, Brazil.
Tanira AguirreLaboratório de Imunoterapia, Universidade Federal de Ciências da Saúde de Porto Alegre, Brazil.ORCID https://orcid.org/0000-0001-7178-6686
Luiz C Rodrigues JuniorLaboratorio de Imunovirologia, Universidade Federal de Ciências da Saúde de Porto Alegre, Brazil.ORCID https://orcid.org/0000-0002-5380-8930

Funding

Conselho Nacional de Desenvolvimento Científico e Tecnológico 458846/2014-7
6 · The paper itself

Abstract

Herpes simplex virus (HSV) 1 and 2 are viruses that infect individuals worldwide and for which there is no cure or vaccine available. The protective response against herpes is mostly mediated by CD8 T lymphocytes that respond to the immunodominant SSIEFARL epitope. However, there are some obstacles concerning the use of free SSIEFARL for vaccine or immunotherapy. The aim of this study was to evaluate the feasibility of nanoencapsulation of SSIEFARL and its immunostimulatory properties. Nano/SSIEFARL was produced by interfacial polymerization in methylmetacrylate, and the physico-chemical properties, morphology and immunobiological parameters were evaluated. To evaluate the ex vivo capacity of Nano/SSIEFARL, we used splenocytes from HSV-1-infected mice to enhance the frequency of SSIEFARL-specific CD8 T lymphocytes. The results indicate that Nano/SSIEFARL has a spherical shape, an average diameter of 352 ± 22 nm, the PDI was 0.361 ± 0.009 and is negatively charged (-26.30 ± 35). The stability at 4°C was 28 days. Also, Nano/SSIEFARL is not toxic for cells at low concentrations in vitro and it is taken up by JAWS II dendritic cells. No histopathological changes were observed in kidneys, liver and lymph nodes of animals treated with Nano/SSIEFARL. Nan/SSIEFARL increased the production of IL-1β, TNF-α and IL-12 by the dendritic cells. Finally, Nano/SSIEFARL expanded the frequency of SSIEFARL-specific CD8+T lymphocytes at the same rate as free SSIEFARL. In conclusion all data together indicate that SSIEFARL is suitable for nanoencapsulation, and the system produced presents some immunoadjuvant properties that can be used to improve the immune response against herpes.

Indexed as

Herpesvirus 1, HumanNanoparticlesAnimalsCD8-Positive T-LymphocytesImmunodominant EpitopesMiceMice, Inbred C57BLImmunodominant Epitopes

Identifiers

PMID34694744
PMCPMC8675790

What OpenQuestion holds

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LicenceCC BY
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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.