Evidence map›Paper›PMID 22278327›Full record

ArticleClinical and vaccine immunology : CVI2012

Biochemical characterization and differential expression of a 16.5-kilodalton tegument-associated antigen from the liver fluke Fasciola hepatica.

José F Gaudier, Kimberly Cabán-Hernández, Antonio Osuna, Ana M Espino

Open access · diamondAbstract read
In one paragraph

Article in Clinical and vaccine immunology : CVI, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
3.7field-weighted citation impact, top 7% 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

13 citing papers in PubMed, 25 citations in OpenAlex.

  1. Enolase and 16.5-kDa Tegument-Associated Protein inJournal of extracellular biology · 2025
    Article
  2. Article
  3. Immunodiagnosis of Fascioliasis in Ruminants by ELISA Method: A Mini-Review.The Malaysian journal of medical sciences : MJMS · 2023
    Review
  4. First molecular evidence ofFrontiers in veterinary science · 2022
    Article
  5. Review
  6. Isolation and Analysis of Fasciola hepatica Extracellular Vesicles.Methods in molecular biology (Clifton, N.J.) · 2020
    Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
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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

4 authors at 2 institutions in 2 countries.

José F GaudierLaboratory of Immunology and Molecular Parasitology, Department of Microbiology, University of Puerto Rico, School of Medicine, San Juan, Puerto Rico.
Kimberly Cabán-Hernández
Antonio Osuna
Ana M Espino
University of Puerto Rico System · PRUniversidad de Granada · ES

Funding

RISE Option III: MBRS RISE at the UPR Medical Sciences CampusR25GM061838 · NIGMS · UNIVERSITY OF PUERTO RICO MED SCIENCES · PI CADILLA, CARMEN LYDIA · 2000 to 2021
$25.5M
STEERING COMMITTEEU54MD008149 · NIMHD · MOREHOUSE SCHOOL OF MEDICINE · PI OFILI, ELIZABETH O. · 2012 to 2018
$21.1M
THE NUTRIGENOMICS OF VITAMIN D METABOLISM IN AFRICAN-AMERICANSU54RR022762 · NCRR · CHARLES R. DREW UNIVERSITY OF MED & SCI · PI NORRIS, KEITH C · 2007 to 2011
$19.6M
Towards a vaccine against Fasciola hepatica using FhSAP2 as an antigenSC1AI096108 · NIAID · UNIVERSITY OF PUERTO RICO MED SCIENCES · PI ESPINO, ANA M · 2011 to 2013
$662k
NCRR NIH HHS 3-U54-RR022762-03S1NCRR NIH HHS U54 RR022762NIAID NIH HHS 1SC1AI096108-01A2NIAID NIH HHS SC1 AI096108NIGMS NIH HHS R25 GM061838NIGMS NIH HHS R25GM061838NIMHD NIH HHS U54 MD008149
6 · The paper itself

Abstract

A cDNA encoding a 16.5-kDa protein termed FhTP16.5 was identified by immunoscreening of a cDNA library from Fasciola hepatica adult flukes using pooled sera from rabbits infected with F. hepatica for 4 weeks. Quantitative reverse transcriptase PCR (qPCR) analysis revealed that FhTP16.5 is not expressed in unembryonated eggs. It is poorly expressed in miracidia and highly expressed at the juvenile and adult stages; however, significant differences were found between the expression levels of FhTP16.5 in juveniles versus adult flukes. Recombinant FhTP16.5 was expressed at high levels in Escherichia coli, purified by affinity chromatography, and used to raise anti-FhTP16.5 polyclonal antibodies in rabbits. Immunoblot analysis using the anti-FhTP16.5 IgG antibody identified FhTP16.5 in crude and tegumental extracts and in excretory-secretory products of F. hepatica. The protein was not detected in crude extracts of Schistosoma mansoni or Schistosoma japonicum. Antibodies to FhTP16.5 were detected in the sera of rabbits at 3 to 12 weeks of F. hepatica infection as well as in the sera of humans with chronic fascioliasis; these findings suggest that FhTP16.5 could be a good antigen for serodiagnosis of fascioliasis. Immunohistochemistry demonstrated that FhTP16.5 localizes to the surface of the tegument of various developmental stages and in parenchymal tissues of the adult fluke. Such specific localization makes FhTP16.5 an attractive target for immunoprophylaxis or chemotherapy.

Indexed as

Gene Expression RegulationAnimalsAntibodies, HelminthAntigens, HelminthChromatography, AffinityDisease Models, AnimalEscherichia coliFasciola hepaticaFascioliasisGene LibraryHumansImmunohistochemistryMolecular WeightRabbitsRecombinant ProteinsAntibodies, HelminthAntigens, HelminthRecombinant Proteins

Identifiers

PMID22278327
PMCPMC3294618
OpenAlexW2130752292

What OpenQuestion holds

Textmetadata
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.