Evidence map›Paper›PMID 15684324›Full record

ArticleThe Journal of experimental medicine2005

Synergistic role of micronemal proteins in Toxoplasma gondii virulence.

Odile Cérède, Jean François Dubremetz, Martine Soête, Didier Deslée, Henri Vial, Daniel Bout, Maryse Lebrun

Open access · bronzeAbstract read
In one paragraph

Article in The Journal of experimental medicine, 2005. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 83 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
83citing papers in PubMed, 1 pooled it
5.7field-weighted citation impact, top 3% 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

83 citing papers in PubMed, 1 synthesis or guideline pooled it, 192 citations in OpenAlex.

  1. A systematic review on efficiency of microneme proteins to induce protective immunity against Toxoplasma gondii.European journal of clinical microbiology & infectious diseases : official publication of the European Society of Clinical Microbiology · 2019
    Pooled it
  2. HarnessingAnnals of medicine · 2026
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  5. Two anchoring proteins control daughter apical complex assembly inbioRxiv : the preprint server for biology · 2026
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  6. A novel anti-Microbiology spectrum · 2026
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  7. Surface antigen SAG1 mediatesInfection and immunity · 2025
    Article
  8. Article
  9. Article
  10. Review
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  12. scDual-Seq ofFrontiers in immunology · 2023
    Article
  13. Article
  14. Article
  15. Comprehensive Overview ofPathogens (Basel, Switzerland) · 2021
    Review
  16. Article
  17. Article
  18. Diverse Roles of TgMIC1/4/6 in theFrontiers in microbiology · 2021
    Review
  19. Article
  20. Article

23 more citing papers are in PubMed but not listed here.

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

7 authors at 2 institutions in 1 country.

Odile CérèdeUMR Université-INRA d'Immunologie Parasitaires, Faculté des Sciences Pharmaceutiques et Biologiques, 37200 Tours, France.
Jean François Dubremetz
Martine Soête
Didier Deslée
Henri Vial
Daniel Bout
Maryse Lebrun
Centre National de la Recherche Scientifique · FRUniversité de Tours · FR

Funding

Production of New Adenovector Constructs with Fiber-Shaft ModificationsZ01AI005093 · NIAID · NIAID EXTRAMURAL ACTIVITIES · PI WALLACE, KIMBERLY · 2007 to 2008
$2.7M
Intramural NIH HHS Z01 AI005093NIAID NIH HHS AI05093Wellcome Trust
6 · The paper itself

Abstract

Apicomplexan parasites invade cells by a unique mechanism involving discharge of secretory vesicles called micronemes. Microneme proteins (MICs) include transmembrane and soluble proteins expressing different adhesive domains. Although the transmembrane protein TRAP and its homologues are thought to bridge cell surface receptors and the parasite submembranous motor, little is known about the function of other MICs. We have addressed the role of MIC1 and MIC3, two soluble adhesins of Toxoplasma gondii, in invasion and virulence. Single deletion of the MIC1 gene decreased invasion in fibroblasts, whereas MIC3 deletion had no effect either alone or in the mic1KO context. Individual disruption of MIC1 or MIC3 genes slightly reduced virulence in the mouse, whereas doubly depleted parasites were severely impaired in virulence and conferred protection against subsequent challenge. Single substitution of two critical amino acids in the chitin binding-like (CBL) domain of MIC3 abolished MIC3 binding to cells and generated the attenuated virulence phenotype. Our findings identify the CBL domain of MIC3 as a key player in toxoplasmosis and reveal the synergistic role of MICs in virulence, supporting the idea that parasites have evolved multiple ligand-receptor interactions to ensure invasion of different cells types during the course of infection.

Indexed as

Amino Acid SequenceAnimalsAnimals, Genetically ModifiedCell Adhesion MoleculesGene TargetingGenetic Complementation TestHumansMaleMiceMice, Inbred BALB CMolecular Sequence DataPhenotypeProtozoan ProteinsSecretory VesiclesSequence AlignmentToxoplasmaCell Adhesion MoleculesMIC1 protein, Toxoplasma gondiiMIC3 protein, Toxoplasma gondiiProtozoan Proteins

Identifiers

PMID15684324
PMCPMC2213027
OpenAlexW2162071653

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-SA
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.