Evidence map›Paper›PMID 17846116›Full record

ArticleInfection and immunity2007

Presentation of Toxoplasma gondii antigens via the endogenous major histocompatibility complex class I pathway in nonprofessional and professional antigen-presenting cells.

Florence Dzierszinski, Marion Pepper, Jason S Stumhofer, David F LaRosa, Emma H Wilson, Laurence A Turka, Sandra K Halonen, Christopher A Hunter, David S Roos

Open access · greenAbstract read
In one paragraph

Article in Infection and immunity, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 47 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
47citing 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

47 citing papers in PubMed, 1 synthesis or guideline pooled it, 73 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. Article
  5. Article
  6. Variation in CD8 T cell IFNγ differentiation to strains ofFrontiers in cellular and infection microbiology · 2023
    Article
  7. Article
  8. Article
  9. Article
  10. Review
  11. Article
  12. Article
  13. Article
  14. Article
  15. Innate immunity to Toxoplasma gondii infection.Nature reviews. Immunology · 2014
    Review
  16. Article
  17. Article
  18. Review
  19. Article
  20. Toxoplasmosis.Handbook of clinical neurology · 2013
    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

9 authors at 2 institutions in 1 country.

Florence DzierszinskiDepartment of Biology, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA. florence.dzierszinski@mcgill.ca
Marion Pepper
Jason S Stumhofer
David F LaRosa
Emma H Wilson
Laurence A Turka
Sandra K Halonen
Christopher A Hunter
David S Roos
University of Pennsylvania · USMontana State University · US

Funding

GENETIC DISSECTION OF TOXOPLASMA GONDIIR37AI028724 · NIAID · UNIVERSITY OF PENNSYLVANIA · PI ROOS, DAVID S. · 1999 to 2008
$4.3M
Regulation of the early immune response to toxoplasma gondiiR01AI042334 · NIAID · UNIVERSITY OF PENNSYLVANIA · PI HUNTER, CHRISTOPHER A · 1998 to 2013
$4.1M
Expression and function of the TLRs on T cellsR01AI062789 · NIAID · UNIVERSITY OF PENNSYLVANIA · PI TURKA, LAURENCE A · 2006 to 2010
$1.9M
FOLATE METABOLISM AND DRUG RESISTANCE IN TOXOPLASMAR01AI028724 · NIAID · UNIVERSITY OF PENNSYLVANIA · PI ROOS, DAVID S. · 1989 to 1997
–
NIAID NIH HHS AI028724NIAID NIH HHS AI062789NIAID NIH HHS AI42334NIAID NIH HHS R01 AI042334NIAID NIH HHS R01 AI062789NIAID NIH HHS R37 AI028724
6 · The paper itself

Abstract

Challenge with the intracellular protozoan parasite Toxoplasma gondii induces a potent CD8+ T-cell response that is required for resistance to infection, but many questions remain about the factors that regulate the presentation of major histocompatibility complex class I (MHC-I)-restricted parasite antigens and about the role of professional and nonprofessional accessory cells. In order to address these issues, transgenic parasites expressing ovalbumin (OVA), reagents that track OVA/MHC-I presentation, and OVA-specific CD8+ T cells were exploited to compare the abilities of different infected cell types to stimulate CD8+ T cells and to define the factors that contribute to antigen processing. These studies reveal that a variety of infected cell types, including hematopoietic and nonhematopoietic cells, are capable of activating an OVA-specific CD8+ T-cell hybridoma, and that this phenomenon is dependent on the transporter associated with antigen processing and requires live T. gondii. Several experimental approaches indicate that T-cell activation is a consequence of direct presentation by infected host cells rather than cross-presentation. Surprisingly, nonprofessional antigen-presenting cells (APCs) were at least as efficient as dendritic cells at activating this MHC-I-restricted response. Studies to assess whether these cells are involved in initiation of the CD8+ T-cell response to T. gondii in vivo show that chimeric mice expressing MHC-I only in nonhematopoietic compartments are able to activate OVA-specific CD8+ T cells upon challenge. These findings associate nonprofessional APCs with the initial activation of CD8+ T cells during toxoplasmosis.

Indexed as

AnimalsAntigen-Presenting CellsAntigens, ProtozoanCD8-Positive T-LymphocytesFemaleGenes, ReporterHistocompatibility Antigens Class ILymphocyte ActivationMiceMice, Inbred BALB CMice, Inbred C57BLMice, TransgenicOvalbuminToxoplasmaToxoplasmosisAntigens, ProtozoanHistocompatibility Antigens Class IOvalbumin

Identifiers

PMID17846116
PMCPMC2168266
OpenAlexW2122308306

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.