Evidence map›Paper›PMID 26374900›Full record

ArticleThe Journal of biological chemistry2015

Calcium Signaling throughout the Toxoplasma gondii Lytic Cycle: A STUDY USING GENETICALLY ENCODED CALCIUM INDICATORS.

Lucas Borges-Pereira, Alexandre Budu, Ciara A McKnight, Christina A Moore, Stephen A Vella, Miryam A Hortua Triana, Jing Liu, Celia R S Garcia, Douglas A Pace, Silvia N J Moreno

Abstract read
In one paragraph

Article in The Journal of biological chemistry, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 46 papers.

0numbers the graph read from it
0cells of the map it votes in
46citing papers in PubMed
–field-weighted citation impact
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

46 citing papers in PubMed.

  1. Article
  2. Article
  3. Molecular biology of the cell · 2025
    Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Egress Regulatory Factors: HowPathogens (Basel, Switzerland) · 2023
    Review
  10. Article
  11. Article
  12. Article
  13. Article
  14. eLife · 2021
    Article
  15. Calcium signaling in intracellular protist parasites.Current opinion in microbiology · 2021
    Review
  16. Article
  17. Article
  18. CaMolecular microbiology · 2021
    Article
  19. Article
  20. Intracellular CaInternational journal of molecular sciences · 2021
    Review
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.

Lucas Borges-PereiraCenter for Tropical and Emerging Global Diseases, University of Georgia, Athens, Georgia 30602.
Alexandre BuduCenter for Tropical and Emerging Global Diseases, University of Georgia, Athens, Georgia 30602.
Ciara A McKnightCenter for Tropical and Emerging Global Diseases, University of Georgia, Athens, Georgia 30602.
Christina A MooreCenter for Tropical and Emerging Global Diseases, University of Georgia, Athens, Georgia 30602; Department of Cellular Biology, University of Georgia, Athens, Georgia 30602.
Stephen A VellaCenter for Tropical and Emerging Global Diseases, University of Georgia, Athens, Georgia 30602.
Miryam A Hortua TrianaCenter for Tropical and Emerging Global Diseases, University of Georgia, Athens, Georgia 30602.
Jing LiuCenter for Tropical and Emerging Global Diseases, University of Georgia, Athens, Georgia 30602.
Celia R S GarciaCenter for Tropical and Emerging Global Diseases, University of Georgia, Athens, Georgia 30602.
Douglas A PaceCenter for Tropical and Emerging Global Diseases, University of Georgia, Athens, Georgia 30602.
Silvia N J MorenoCenter for Tropical and Emerging Global Diseases, University of Georgia, Athens, Georgia 30602; Department of Cellular Biology, University of Georgia, Athens, Georgia 30602. Electronic address: smoreno@uga.edu.

Funding

Training in Tropical and Emerging Global Diseases - SupplementT32AI060546 · NIAID · UNIVERSITY OF GEORGIA (UGA) · PI Silvia N Moreno, Vasant Muralidharan · 2004 to 2026
$5.1M
The plant-like vacuole of Toxoplasma gondiiR01AI096836 · NIAID · UNIVERSITY OF GEORGIA · PI MORENO, SILVIA N · 2012 to 2016
$1.8M
Genetically Encoded Calcium Indicators in Toxoplasma gondiiR21AI110027 · NIAID · UNIVERSITY OF GEORGIA · PI MORENO, SILVIA N · 2014 to 2015
$411k
NIAID NIH HHS AI060546NIAID NIH HHS AI-096836NIAID NIH HHS AI-110027NIAID NIH HHS R01 AI096836NIAID NIH HHS R21 AI110027NIAID NIH HHS T32 AI060546
6 · The paper itself

Abstract

Toxoplasma gondii is an obligate intracellular parasite that invades host cells, creating a parasitophorous vacuole where it communicates with the host cell cytosol through the parasitophorous vacuole membrane. The lytic cycle of the parasite starts with its exit from the host cell followed by gliding motility, conoid extrusion, attachment, and invasion of another host cell. Here, we report that Ca(2+) oscillations occur in the cytosol of the parasite during egress, gliding, and invasion, which are critical steps of the lytic cycle. Extracellular Ca(2+) enhances each one of these processes. We used tachyzoite clonal lines expressing genetically encoded calcium indicators combined with host cells expressing transiently expressed calcium indicators of different colors, and we measured Ca(2+) changes in both parasites and host simultaneously during egress. We demonstrated a link between cytosolic Ca(2+) oscillations in the host and in the parasite. Our approach also allowed us to measure two new features of motile parasites, which were enhanced by Ca(2+) influx. This is the first study showing, in real time, Ca(2+) signals preceding egress and their direct link with motility, an essential virulence trait.

Indexed as

Calcium SignalingAnimalsCalcium IonophoresCell LineHeLa CellsHost-Parasite InteractionsHumansIonomycinLuminescent ProteinsRecombinant ProteinsToxoplasmaTransfectionVirulenceCalcium IonophoresIonomycinLuminescent ProteinsRecombinant Proteinscalciumcalcium imagingGCaMPglidinghost-pathogen interactionlytic cyclesignalingToxoplasma gondii

Identifiers

PMID26374900
PMCPMC4646405

What OpenQuestion holds

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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.