Evidence map›Paper›PMID 25692783›Full record

ArticlePLoS neglected tropical diseases2015

Regulation of Leishmania (L.) amazonensis protein expression by host T cell dependent responses: differential expression of oligopeptidase B, tryparedoxin peroxidase and HSP70 isoforms in amastigotes isolated from BALB/c and BALB/c nude mice.

Priscila Camillo Teixeira, Leonardo Garcia Velasquez, Ana Paula Lepique, Eloiza de Rezende, José Matheus Camargo Bonatto, Marcello Andre Barcinski, Edecio Cunha-Neto, Beatriz Simonsen Stolf

Abstract read
In one paragraph

Article in PLoS neglected tropical diseases, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed, 1 pooled it
–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

16 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Review
  3. Article
  4. Molecular interaction assaysThe journal of venomous animals and toxins including tropical diseases · 2025
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  6. Characterization ofParasitology · 2022
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  11. CD100/Sema4D Increases Macrophage Infection byFrontiers in microbiology · 2018
    Article
  12. Article
  13. Comparative genomics of Tunisian Leishmania major isolates causing human cutaneous leishmaniasis with contrasting clinical severity.Infection, genetics and evolution : journal of molecular epidemiology and evolutionary genetics in infectious diseases · 2017
    Article
  14. Article
  15. Article
  16. 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.

Priscila Camillo TeixeiraHeart Institute (InCor), University of São Paulo School of Medicine, São Paulo, São Paulo, Brazil.
Leonardo Garcia VelasquezDepartment of Parasitology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil.
Ana Paula LepiqueDepartment of Immunology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil.
Eloiza de RezendeDepartment of Parasitology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil.
José Matheus Camargo BonattoDepartment of Biochemistry, Institute of Chemistry, University of São Paulo, São Paulo, Brazil.
Marcello Andre BarcinskiOswaldo Cruz Institute-FioCruz, Rio de Janeiro, Brazil.
Edecio Cunha-NetoHeart Institute (InCor), University of São Paulo School of Medicine, São Paulo, São Paulo, Brazil.
Beatriz Simonsen StolfDepartment of Parasitology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Leishmaniasis is an important disease that affects 12 million people in 88 countries, with 2 million new cases every year. Leishmania amazonensis is an important agent in Brazil, leading to clinical forms varying from localized (LCL) to diffuse cutaneous leishmaniasis (DCL). One interesting issue rarely analyzed is how host immune response affects Leishmania phenotype and virulence. Aiming to study the effect of host immune system on Leishmania proteins we compared proteomes of amastigotes isolated from BALB/c and BALB/c nude mice. The athymic nude mice may resemble patients with diffuse cutaneous leishmaniasis, considered T-cell hyposensitive or anergic to Leishmania's antigens. This work is the first to compare modifications in amastigotes' proteomes driven by host immune response. Among the 44 differentially expressed spots, there were proteins related to oxidative/nitrosative stress and proteases. Some correspond to known Leishmania virulence factors such as OPB and tryparedoxin peroxidase. Specific isoforms of these two proteins were increased in parasites from nude mice, suggesting that T cells probably restrain their posttranslational modifications in BALB/c mice. On the other hand, an isoform of HSP70 was increased in amastigotes from BALB/c mice. We believe our study may allow identification of potential virulence factors and ways of regulating their expression.

Indexed as

AnimalsAntigens, ProtozoanBrazilDisease Models, AnimalFemaleHSP70 Heat-Shock ProteinsHumansLeishmania mexicanaLeishmaniasis, Diffuse CutaneousMiceMice, Inbred BALB CMice, NudePeroxidasesProtein IsoformsProtozoan ProteinsSerine EndopeptidasesAntigens, ProtozoanHSP70 Heat-Shock Proteinsoligopeptidase BPeroxidasesProtein IsoformsProtozoan ProteinsSerine Endopeptidasestryparedoxin peroxidase

Identifiers

PMID25692783
PMCPMC4333223

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Registered trials

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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.