Evidence map›Paper›PMID 30497493›Full record

ArticleParasites & vectors2018

Differential expression of proteins in genetically distinct Trypanosoma cruzi samples (TcI and TcII DTUs) isolated from chronic Chagas disease cardiac patients.

Maykon Tavares de Oliveira, Karina Taciana Santos Silva, Leandro Xavier Neves, Max Jean de Ornelas Toledo, William Castro-Borges, Marta de Lana

Open access · goldAbstract readCase Reports
In one paragraph

Article in Parasites & vectors, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
0.5field-weighted citation impact, top 31% 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

6 citing papers in PubMed, 11 citations in OpenAlex.

  1. Article
  2. Coinfection by multipleMicrobiology and molecular biology reviews : MMBR · 2025
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  3. An Overview ofPathogens (Basel, Switzerland) · 2025
    Review
  4. Article
  5. Characterization of NovelInternational journal of molecular sciences · 2024
    Article
  6. Virulence · 2022
    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

6 authors at 2 institutions in 1 country.

Maykon Tavares de OliveiraPrograma de Pós-Graduação em Ciências Biológicas do Núcleo de Pesquisas em Ciências Biológicas (NUPEB), Campus Universitário Morro do Cruzeiro, Universidade Federal de Ouro Preto, CEP, Ouro Preto, MG, 35400-000, Brazil.
Karina Taciana Santos SilvaDepartamento de Farmácia, Escola de Farmácia, Campus Universitário Morro do Cruzeiro, Universidade Federal de Ouro Preto, CEP, Ouro Preto, MG, 35400-000, Brazil.
Leandro Xavier NevesPrograma de Pós-Graduação em Biotecnologia do Núcleo de Pesquisas em Ciências Biológicas (NUPEB), Campus Universitário Morro do Cruzeiro, Universidade Federal de Ouro Preto, CEP: 35400-000, Ouro Preto, MG, Brazil.
Max Jean de Ornelas ToledoDepartamento de Ciências Básicas da Saúde - Parasitologia, Universidade Estadual de Maringá, CEP: 87020-900, Maringá, Paraná, PR, Brazil.
William Castro-BorgesPrograma de Pós-Graduação em Ciências Biológicas do Núcleo de Pesquisas em Ciências Biológicas (NUPEB), Campus Universitário Morro do Cruzeiro, Universidade Federal de Ouro Preto, CEP, Ouro Preto, MG, 35400-000, Brazil. wborges@ufop.edu.br.
Marta de LanaPrograma de Pós-Graduação em Ciências Biológicas do Núcleo de Pesquisas em Ciências Biológicas (NUPEB), Campus Universitário Morro do Cruzeiro, Universidade Federal de Ouro Preto, CEP, Ouro Preto, MG, 35400-000, Brazil.
Universidade Federal de Ouro Preto · BRUniversidade Estadual de Maringá · BR

Funding

Fundação de Amparo à Pesquisa do Estado de Minas Gerais APQ-00766-16Fundação de Amparo à Pesquisa do Estado de Minas Gerais APQ-03367-16
6 · The paper itself

Abstract

backgroundTrypanosoma cruzi, a hemoflagellate protozoan parasite and the etiological agent of Chagas disease (CD), exhibits great genetic and biological diversity. Infected individuals may present clinical manifestations with different levels of severity. Several hypotheses have been proposed to attempt to correlate the diversity of clinical signs and symptoms to the genetic variability of T. cruzi. This work aimed to investigate the differential expression of proteins from two distinct genetic groups of T. cruzi (discrete typing units TcI and TcII), isolated from chronically infected individuals displaying the cardiac form of CD. For this purpose, epimastigote forms of the two isolates were cultured in vitro and the cells recovered for protein extraction. Comparative two-dimensional (2D) gel electrophoreses were performed and differentially expressed spots selected for identification by mass spectrometry, followed by database searching and protein categorization.

resultsThe 2D electrophoretic profiles revealed the complex composition of the T. cruzi extracted proteome. Protein spots were distributed along the entire pH and molecular mass ranges attesting for the integrity of the protein preparations. In total, 46 differentially expressed proteins were identified present in 40 distinct spots found in the comparative gel analyses. Of these, 16 displayed upregulation in the gel from TcI-typed parasites and 24 appeared overexpressed in the gel from TcII-typed parasites. Functional characterization of differentially expressed proteins revealed major alterations associated with stress response, lipid and amino acid metabolism in parasites of the TcII isolate, whilst those proteins upregulated in the TcI sample were primarily linked to central metabolic pathways.

conclusionsThe comparative 2D-gel electrophoresis allowed detection of major differences in protein expression between two T. cruzi isolates, belonging to the TcI and TcII genotypes. Our findings suggest that patients displaying the cardiac form of the disease harbor parasites capable of exhibiting distinct proteomic profiles. This should be of relevance to disease prognosis and treatment.

Indexed as

Chagas CardiomyopathyElectrophoresis, Gel, Two-DimensionalFemaleGenetic VariationGenotypeHumansProteomicsProtozoan ProteinsTrypanosoma cruziProtozoan ProteinsChagas diseaseDifferential proteomicsDTUsTrypanosoma cruzi

Identifiers

PMID30497493
PMCPMC6267078
OpenAlexW2902856774

What OpenQuestion holds

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LicenceCC BY
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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.