Evidence map›Paper›PMID 29876861›Full record

ArticleParasitology research2018

Anti-GK1 antibodies damage Taenia crassiceps cysticerci through complement activation.

Guadalupe Núñez, Nelly Villalobos, Cinthia P Herrera, José Navarrete-Perea, Adriana Méndez, José J Martinez-Maya, Raúl J Bobes, Gladis Fragoso, Edda Sciutto, Laura Aguilar and 1 more

Abstract read
PubMed Publisher
In one paragraph

Article in Parasitology research, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
0.3field-weighted citation impact, top 40% 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

4 citing papers in PubMed, 6 citations in OpenAlex.

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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

11 authors at 1 institution in 1 country.

Guadalupe NúñezFacultad de Medicina Veterinaria y Zootecnia, Universidad Nacional Autónoma de México, Circuito Escolar. Ciudad Universitaria, 04510, Mexico City, Mexico.
Nelly VillalobosFacultad de Medicina Veterinaria y Zootecnia, Universidad Nacional Autónoma de México, Circuito Escolar. Ciudad Universitaria, 04510, Mexico City, Mexico.
Cinthia P HerreraFacultad de Medicina Veterinaria y Zootecnia, Universidad Nacional Autónoma de México, Circuito Escolar. Ciudad Universitaria, 04510, Mexico City, Mexico.
José Navarrete-PereaInstituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, Circuito Escolar, Ciudad Universitaria, 04510, Mexico City, Mexico.
Adriana MéndezFacultad de Medicina Veterinaria y Zootecnia, Universidad Nacional Autónoma de México, Circuito Escolar. Ciudad Universitaria, 04510, Mexico City, Mexico.
José J Martinez-MayaFacultad de Medicina Veterinaria y Zootecnia, Universidad Nacional Autónoma de México, Circuito Escolar. Ciudad Universitaria, 04510, Mexico City, Mexico.
Raúl J BobesInstituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, Circuito Escolar, Ciudad Universitaria, 04510, Mexico City, Mexico.
Gladis FragosoInstituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, Circuito Escolar, Ciudad Universitaria, 04510, Mexico City, Mexico.
Edda SciuttoInstituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, Circuito Escolar, Ciudad Universitaria, 04510, Mexico City, Mexico. edda@unam.mx.ORCID http://orcid.org/0000-0001-5608-5355
Laura AguilarFacultad de Medicina, Universidad Nacional Autónoma de México, Circuito Escolar. Ciudad Universitaria, 04510, Mexico City, Mexico.
Irene P Del ArenalFacultad de Medicina, Universidad Nacional Autónoma de México, Circuito Escolar. Ciudad Universitaria, 04510, Mexico City, Mexico. darenal@bq.unam.mx.
Universidad Nacional Autónoma de México · MX

Funding

Consejo Nacional de Ciencia y Tecnología 253891Dirección General de Asuntos del Personal Académico, Universidad Nacional Autónoma de México IN218816Dirección General de Asuntos del Personal Académico, Universidad Nacional Autónoma de México (MX) IG200414
6 · The paper itself

Abstract

Taeniasis-cysticercosis, a zoonosis caused by Taenia solium, is prevalent in underdeveloped countries, where marginalization promotes its continued transmission. Pig cysticercosis, an essential stage for transmission, is preventable by vaccination. An efficient multiepitope vaccine against pig cysticercosis, S3Pvac, was developed. Previous studies showed that antibodies against one of the S3Pvac components, GK-1, are capable of damaging T. solium cysticerci, inhibiting their ability to transform into the adult stage in golden hamster gut. This study is aimed to evaluate one of the mechanisms that could mediate anti-GK-1 antibody-dependent protection. To this end, pig anti-GK-1 antibodies were produced and purified by using protein A. Proteomic analysis showed that the induced antibodies recognized the respective native cysticercal protein KE7 (Bobes et al. Infect Immun 85:e00395-17, 2017) and two additional T. solium proteins (endophilin B1 and Gp50). A new procedure to evaluate cysticercus viability, based on quantifying the cytochrome c released after parasite damage, was developed. Taenia crassiceps cysticerci were cultured in the presence of differing amounts of anti-GK-1 antibody and complement in a saturating concentration, along with the respective controls. Cysticercus viability was assessed by recording parasite motility, trypan blue exclusion, and cytochrome c levels in cysticercal soluble extract. Anti-GK-1 antibody significantly increased cysticercus damage as measured by all three methods. Parasite evaluation by electron microscopy after treatment with anti-GK-1 antibody plus complement demonstrated cysticercus damage as shorter, capsule-severed microtrichia; a decrease in glycocalyx length with respect to untreated cysts; and disaggregated desmosomes. These results demonstrate that anti-GK-1 antibodies damage cysticerci through classic complement activation.

Indexed as

Complement ActivationAnimalsAntibodies, HelminthAntigens, HelminthCricetinaeCysticercosisFemaleMesocricetusMiceMice, Inbred BALB CProteomicsSwineTaeniaTaeniasisAntibodies, HelminthAntigens, HelminthComplement systemCyst viabilityCytochrome cGK-1Taenia crassiceps cysticerci

Identifiers

PMID29876861
OpenAlexW2806350448

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.