Evidence map›Paper›PMID 24176018›Full record

ArticleBMC infectious diseases2013

Protective immunity against Toxoplasma gondii induced by DNA immunization with the gene encoding a novel vaccine candidate: calcium-dependent protein kinase 3.

Nian-Zhang Zhang, Si-Yang Huang, Dong-Hui Zhou, Jia Chen, Ying Xu, Wei-Peng Tian, Jing Lu, Xing-Quan Zhu

Open access · goldAbstract read
In one paragraph

Article in BMC infectious diseases, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed, 1 pooled it
3.9field-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

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

  1. Pooled it
  2. Article
  3. Article
  4. Article
  5. Article
  6. Review
  7. Article
  8. In-depth computational analysis of calcium-dependent protein kinase 3 ofClinical and experimental vaccine research · 2020
    Article
  9. Article
  10. Article
  11. Calcium-dependent protein kinases are potential targets forClinical and experimental vaccine research · 2018
    Review
  12. Article
  13. Article
  14. Resistance to ChronicBioMed research international · 2017
    Article
  15. The effect of chitosan nanospheres on the immunogenicity of Toxoplasma lysate vaccine in mice.Journal of parasitic diseases : official organ of the Indian Society for Parasitology · 2016
    Article
  16. Article
  17. Article
  18. Article
  19. Recent advances in Toxoplasma gondii immunotherapeutics.The Korean journal of parasitology · 2014
    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

8 authors at 5 institutions in 1 country.

Nian-Zhang Zhang
Si-Yang HuangState Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, Gansu Province 730046, PR China. huangsiyang@caas.cn.
Dong-Hui Zhou
Jia Chen
Ying Xu
Wei-Peng Tian
Jing Lu
Xing-Quan Zhu
Chinese Academy of Agricultural Sciences · CNLanzhou Veterinary Research Institute · CNAnhui Agricultural University · CNNortheast Agricultural University · CNSouth China Agricultural University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundToxoplasma gondii can infect almost all warm-blood animals including human beings. The plant-like calcium-dependent protein kinases (CDPKs) harbored by T. gondii are involved in gliding motility, cell invasion, egress and some other developmental processes, and so have been implicated as important virulence factors.

methodsIn the present study, we constructed a DNA vaccine expressing T. gondii CDPK3 (TgCDPK3) and evaluated its protective efficacy against T. gondii infection in Kunming mice. The gene sequence encoding TgCDPK3 was inserted into the eukaryotic expression vector pVAX I, and mice were immunized with pVAX-CDPK3 intramuscularly.

resultsThe results showed that mice immunized with pVAX-CDPK3 developed a high level of specific antibodies and a strong lymphoproliferative response. The significantly increased levels of IFN-γ, IL-2, IL-12 (p70) and IL-23 and high ratio of IgG2a to IgG1 antibody titers indicated that a Th1 type response was elicited after immunization with pVAX-CDPK3. Furthermore, the percentage of CD4+ T cells in mice vaccinated with pVAX-CDPK3 was significantly increased. After lethal challenge with the tachyzoites of the virulent T. gondii RH strain, the mice immunized with pVAX-CDPK3 prolonged the survival time from 10 days to 24 days (13.5 ± 4.89) compared to untreated mice or those received PBS or pVAX I which died within 7 days (P < 0.05). In chronic infection model (10 cysts of the T. gondii PRU strain), the numbers of brain cysts of the mice immunized with pVAX-CDPK3 reduced significantly when compared with those in control groups (P < 0.05), and the rate of reduction could reach to about 50%.

conclusionsTgCDPK3 can generate protective immunity against acute and chronic T. gondii infection in Kunming mice and is a promising vaccine candidate for further development of an effective vaccine against T. gondii.

Indexed as

AnimalsAntibodies, ProtozoanCalcium-Binding ProteinsCytokinesFemaleMiceProtein KinasesProtozoan ProteinsProtozoan VaccinesRandom AllocationToxoplasmaToxoplasmosis, AnimalVaccines, DNAAntibodies, ProtozoanCalcium-Binding ProteinsCytokinesProtein KinasesProtozoan ProteinsProtozoan VaccinesVaccines, DNA

Identifiers

PMID24176018
PMCPMC4228491
OpenAlexW2013622575

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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.