Evidence map›Paper›PMID 12183516›Full record

ArticleInfection and immunity2002

Susceptibility of interleukin-2-deficient mice to Toxoplasma gondii is associated with a defect in the production of gamma interferon.

Eric N Villegas, Linda A Lieberman, Simon R Carding, Christopher A Hunter

Open access · greenAbstract read
In one paragraph

Article in Infection and immunity, 2002. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
1.2field-weighted citation impact, top 24% 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

14 citing papers in PubMed, 34 citations in OpenAlex.

  1. The Live-Attenuated PruΔAnimals : an open access journal from MDPI · 2026
    Article
  2. Article
  3. Article
  4. Detection and characterization of diverse coccidian protozoa shed by California sea lions.International journal for parasitology. Parasites and wildlife · 2016
    Article
  5. Review
  6. Article
  7. Article
  8. Review
  9. T cells need Nod too?Nature immunology · 2009
    Article
  10. Article
  11. T cell expression of MyD88 is required for resistance to Toxoplasma gondii.Proceedings of the National Academy of Sciences of the United States of America · 2008
    Article
  12. Article
  13. Article
  14. 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

4 authors at 2 institutions in 2 countries.

Eric N VillegasDepartment of Pathobiology, University of Pennsylvania, School of Veterinary Medicine, Philadelphia 19104-6050, USA.
Linda A Lieberman
Simon R Carding
Christopher A Hunter
University of Pennsylvania · USUniversity of Leeds · GB

Funding

IMMUNOPATHOGENESIS OF TOXOPLASMIC ENCEPHALITISR01AI041158 · NIAID · UNIVERSITY OF PENNSYLVANIA · PI HUNTER, CHRISTOPHER A · 1996 to 2019
$4.8M
Regulation of the early immune response to toxoplasma gondiiR01AI042334 · NIAID · UNIVERSITY OF PENNSYLVANIA · PI HUNTER, CHRISTOPHER A · 1998 to 2013
$4.1M
USE OF SCID &IMMUNOCOMPETENT MICE TO ANALYZE PATHOGENESIS OF ORAL LISTERIOSISP01RR012211 · NCRR · UNIVERSITY OF PENNSYLVANIA · PI ROZMIAREK, HARRY NMN · 1998 to 2002
$863k
GAMMA/DELTA T CELLS AND PATHOGEN INDUCED IMMUNE RESPONSER01AI045993 · NIAID · UNIVERSITY OF PENNSYLVANIA · PI SCOTT, PHILLIP A. · 1999 to 2003
$805k
GUT FLORA AS A PROVOCATEUR OF AUTOIMMUNE COLITISR01AI041562 · NIAID · UNIVERSITY OF PENNSYLVANIA · PI FELSBURG, PETER J · 1998 to 2002
$481k
ORIGIN AND DEVELOPMENT OF HUMAN GD T-CELLSR01AI031972 · NIAID · UNIVERSITY OF PENNSYLVANIA · PI CARDING, SIMON RICHARD · 1994 to 1996
–
MINORITY PREDOCTORAL FELLOWSHIP PROGRAMF31AI009562 · NIAID · UNIVERSITY OF PENNSYLVANIA · PI VILLEGAS, ERIC N · 1995 to 1999
–
NCRR NIH HHS P01 RR012211NCRR NIH HHS P01RR12211NIAID NIH HHS AI 09562NIAID NIH HHS AI31972NIAID NIH HHS AI41158NIAID NIH HHS AI41562NIAID NIH HHS AI42334NIAID NIH HHS AI45993NIAID NIH HHS F31 AI009562NIAID NIH HHS R01 AI041158NIAID NIH HHS R01 AI042334NIAID NIH HHS R01 AI045993
6 · The paper itself

Abstract

Costimulation through the B7-CD28 interaction is an important second signal for T-cell activation, and previous studies have shown that CD28(-/-) mice infected with Toxoplasma gondii generate suboptimal CD4(+) T-cell responses, associated with a defect in production of the T-cell growth factor interleukin-2 (IL-2). To address the role of IL-2 in the expansion of T cells during toxoplasmosis, IL-2(-/-) mice were infected with T. gondii and their ability to generate a protective T-cell response was assessed. Although IL-2(-/-) mice produced normal levels of IL-12p40, they had reduced levels of gamma interferon (IFN-gamma) in serum, had an increased parasite burden, and succumbed to infection with T. gondii within 20 days. Fluorescence-activated cell sorter analysis revealed that, although uninfected IL-2(-/-) mice had an increased number of activated T cells compared with uninfected IL-2(+/+) mice, following infection they were unable to further upregulate this population. Examination of the ability of splenocytes from uninfected and infected mice to produce IFN-gamma revealed that IL-2(-/-) mice were hyporesponsive to stimulation with anti-CD3 or parasite antigen compared with wild-type mice, and the addition of IL-2 alone or in combination with IL-12 or stimulation with phorbol myristate acetate and ionomycin did not restore the production of IFN-gamma. Together, these studies reveal that IL-2(-/-) mice are unable to generate a protective IFN-gamma response following infection with T. gondii and suggest that IL-2(-/-) mice have an intrinsic defect in their ability to activate and expand IFN-gamma-producing T cells required for resistance to T. gondii.

Indexed as

AnimalsCD4-Positive T-LymphocytesFemaleInterferon-gammaInterleukin-12Interleukin-12 Subunit p40Interleukin-2Lymphocyte ActivationMaleMiceMice, Inbred C57BLMice, KnockoutProtein SubunitsSignal TransductionSpleenT-LymphocytesInterferon-gammaInterleukin-12Interleukin-12 Subunit p40Interleukin-2Protein Subunits

Identifiers

PMID12183516
PMCPMC128219
OpenAlexW2127548152

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.