Evidence map›Paper›PMID 12045244›Full record

ArticleThe Journal of experimental medicine2002

Treatment with soluble interleukin-15Ralpha exacerbates intracellular parasitic infection by blocking the development of memory CD8+ T cell response.

Imtiaz A Khan, Magali Moretto, Xiao-Qing Wei, Martha Williams, Joseph D Schwartzman, Foo Y Liew

Open access · bronzeAbstract read
In one paragraph

Article in The Journal of experimental medicine, 2002. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed
1.2field-weighted citation impact, top 21% 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

23 citing papers in PubMed, 51 citations in OpenAlex.

  1. Review
  2. Article
  3. Review
  4. Influence of the Host and Parasite Strain on the Immune Response DuringFrontiers in cellular and infection microbiology · 2020
    Review
  5. Article
  6. Review
  7. Article
  8. Article
  9. Review
  10. Review
  11. CD8 T Cells and Toxoplasma gondii: A New Paradigm.Journal of parasitology research · 2011
    Article
  12. Article
  13. Article
  14. Article
  15. Review
  16. Article
  17. Article
  18. Lack of IL-15 results in the suboptimal priming of CD4+ T cell response against an intracellular parasite.Proceedings of the National Academy of Sciences of the United States of America · 2006
    Article
  19. Article
  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

6 authors at 2 institutions in 2 countries.

Imtiaz A KhanDepartment of Microbiology, Immunology and Parasitology, Louisiana State University Health Science Center, New Orleans, LA 70112, USA. ikhan@lsuhsc.edu
Magali Moretto
Xiao-Qing Wei
Martha Williams
Joseph D Schwartzman
Foo Y Liew
Louisiana State University Health Sciences Center New Orleans · USUniversity of Glasgow · GB

Funding

LONG TERM IMMUNITY AGAINST TOXOPLASMOSISR01AI033325 · NIAID · LOUISIANA STATE UNIV HSC NEW ORLEANS · PI KHAN, IMTIAZ AHMED · 1998 to 2020
$6.2M
LONG TERM IMMUNITY AGAINST TOXOPLASMOSISR21AI033325 · NIAID · DARTMOUTH COLLEGE · PI KHAN, IMTIAZ AHMED · 1997 to 1997
–
TOXOPLASMA GONDII MEDIATED IMMUNOSUPPRESSIONR29AI033325 · NIAID · DARTMOUTH COLLEGE · PI KHAN, IMTIAZ AHMED · 1992 to 1996
–
NIAID NIH HHS AI 33325NIAID NIH HHS R01 AI033325
6 · The paper itself

Abstract

Interferon (IFN)-gamma-producing CD8+ T cells are important for the successful resolution of the obligate intracellular parasite Toxoplasma gondii by preventing the reactivation or controlling a repeat infection. Previous reports from our laboratory have shown that exogenous interleukin (IL)-15 treatment augments the CD8+ T cell response against the parasite. However, the role of endogenous IL-15 in the proliferation of activated/memory CD8+ T cells during toxoplasma or any other infection is unknown. In this study, we treated T. gondii immune mice with soluble IL-15 receptor alpha (sIL-15Ralpha) to block the host endogenous IL-15. The treatment markedly reduced the ability of the immune animals to control a lethal infection. CD8+ T cell activities in the sIL-15Ralpha-administered mice were severely reduced as determined by IFN-gamma release and target cell lysis assays. The loss of CD8+ T cell immunity due to sIL-15Ralpha treatment was further demonstrated by adoptive transfer experiments. Naive recipients transferred with CD44(hi) activated/memory CD8+ T cells and treated with sIL-15Ralpha failed to resist a lethal T. gondii infection. Moreover, sIL-15Ralpha treatment of the recipients blocked the ability of donor CD44(hi) activated/memory CD8+ T cells to replicate in response to T. gondii challenge. To our knowledge, this is the first demonstration of the important role of host IL-15 in the development of antigen-specific memory CD8+ T cells against an intracellular infection.

Indexed as

Adoptive TransferAnimalsCD8-Positive T-LymphocytesFemaleImmunologic MemoryInterleukin-15IntestinesIntracellular FluidLiverMiceMice, Inbred C57BLReceptors, Interleukin-15Receptors, Interleukin-2SolubilityTime FactorsToxoplasmaIl15ra protein, mouseInterleukin-15Receptors, Interleukin-15Receptors, Interleukin-2

Identifiers

PMID12045244
PMCPMC2193543
OpenAlexW2155796943

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.