Evidence map›Paper›PMID 24244781›Full record

ArticlePLoS neglected tropical diseases2013

Trypanosoma cruzi TcSMUG L-surface mucins promote development and infectivity in the triatomine vector Rhodnius prolixus.

Marcelo S Gonzalez, Marcela S Souza, Eloi S Garcia, Nadir F S Nogueira, Cícero B Mello, Gaspar E Cánepa, Santiago Bertotti, Ignacio M Durante, Patrícia Azambuja, Carlos A Buscaglia

Open access · goldAbstract read
In one paragraph

Article in PLoS neglected tropical diseases, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed, 1 pooled it
1.8field-weighted citation impact, top 15% 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

21 citing papers in PubMed, 1 synthesis or guideline pooled it, 40 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. Article
  5. Adhesion ofmSphere · 2024
    Article
  6. Review
  7. Modulation of Virulence Factors duringPathogens (Basel, Switzerland) · 2022
    Review
  8. Review
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  10. Article
  11. Review
  12. Review
  13. Article
  14. Article
  15. Article
  16. Review
  17. Article
  18. A Brief View of the Surface Membrane Proteins fromJournal of parasitology research · 2017
    Review
  19. Review
  20. 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

10 authors at 6 institutions in 2 countries.

Marcelo S GonzalezLaboratório de Biologia de Insetos, Departamento de Biologia Geral, Instituto de Biologia, Universidade Federal Fluminense, Morro do Valonguinho S/N, Centro, Niterói, Rio de Janeiro, Brazil ; Instituto Nacional de Entomologia Molecular (INCT-EM, CNPq), Brazil.
Marcela S Souza
Eloi S Garcia
Nadir F S Nogueira
Cícero B Mello
Gaspar E Cánepa
Santiago Bertotti
Ignacio M Durante
Patrícia Azambuja
Carlos A Buscaglia
Instituto Tecnológico de Chascomús · ARInstituto Nacional de Ciência e Tecnologia em Entomologia Molecular · BRUniversidade Federal Fluminense · BRConsejo Nacional de Investigaciones Científicas y Técnicas · ARFundação Oswaldo Cruz · BRState University of Norte Fluminense · BR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundTcSMUG L products were recently identified as novel mucin-type glycoconjugates restricted to the surface of insect-dwelling epimastigote forms of Trypanosoma cruzi, the etiological agent of Chagas disease. The remarkable conservation of their predicted mature N-terminal region, which is exposed to the extracellular milieu, suggests that TcSMUG L products may be involved in structural and/or functional aspects of the interaction with the insect vector. METHODOLOGY AND PRINCIPAL

findingsHere, we investigated the putative roles of TcSMUG L mucins in both in vivo development and ex vivo attachment of epimastigotes to the luminal surface of the digestive tract of Rhodnius prolixus. Our results indicate that the exogenous addition of TcSMUG L N-terminal peptide, but not control T. cruzi mucin peptides, to the infected bloodmeal inhibited the development of parasites in R. prolixus in a dose-dependent manner. Pre-incubation of insect midguts with the TcSMUG L peptide impaired the ex vivo attachment of epimastigotes to the luminal surface epithelium, likely by competing out TcSMUG L binding sites on the luminal surface of the posterior midgut, as revealed by fluorescence microscopy. CONCLUSION AND SIGNIFICANCE: Together, these observations indicate that TcSMUG L mucins are a determinant of both adhesion of T. cruzi epimastigotes to the posterior midgut epithelial cells of the triatomine, and the infection of the insect vector, R. prolixus.

Indexed as

AnimalsChagas DiseaseInsect VectorsMucinsRhodniusTrypanosoma cruziMucins

Identifiers

PMID24244781
PMCPMC3828161
OpenAlexW1997827039

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.