Evidence map›Paper›PMID 15184505›Full record

ArticleThe Journal of experimental medicine2004

Low dose Leishmania major promotes a transient T helper cell type 2 response that is down-regulated by interferon gamma-producing CD8+ T cells.

Jude E Uzonna, Karen L Joyce, Phillip Scott

Open access · bronzeAbstract read
In one paragraph

Article in The Journal of experimental medicine, 2004. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 76 papers.

0numbers the graph read from it
0cells of the map it votes in
76citing papers in PubMed
6.3field-weighted citation impact, top 4% 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

76 citing papers in PubMed, 153 citations in OpenAlex.

  1. Article
  2. Article
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  5. Lack of Hypoxia Inducible Factor-1α Influences on Macrophages Ability to Deal withJID innovations : skin science from molecules to population health · 2025
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  8. Article
  9. Article
  10. Article
  11. Article
  12. The Mechanism of CD8Biomolecules · 2021
    Review
  13. Article
  14. Immune Responses in Cutaneous Leishmaniasis:Journal of arthropod-borne diseases · 2021
    Article
  15. Review
  16. Assessment of Incubation Period of Cutaneous Leishmaniasis due toThe American journal of tropical medicine and hygiene · 2020
    Article
  17. Review
  18. Article
  19. Microorganisms · 2020
    Review
  20. Article

16 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

3 authors at 1 institution in 1 country.

Jude E UzonnaDepartment of Pathobiology, School of Veterinary Medicine, University of Pennsylvania, 3800 Spruce Street, Philadelphia 19104, USA.
Karen L Joyce
Phillip Scott
University of Pennsylvania · US

Funding

IL12 AS AN IMMUNOPOTENTIATOR IN LEISHMANIASISR01AI035914 · NIAID · UNIVERSITY OF PENNSYLVANIA · PI SCOTT, PHILLIP · 1994 to 2013
$4.5M
IL-12 as an immunopotentiator in leishmaniasisR21AI035914 · NIAID · UNIVERSITY OF PENNSYLVANIA · PI SCOTT, PHILLIP A. · 2002 to 2002
$396k
NIAID NIH HHS AI-35914NIAID NIH HHS R01 AI035914NIAID NIH HHS R21 AI035914
6 · The paper itself

Abstract

An unresolved issue in the field of T helper (Th) cell development relates to the findings that low doses of antigen promote Th2 cell development in vitro, whereas several classic in vivo studies suggest the opposite. Here we resolve this paradox by studying the early immune response in mice after infection with different doses of Leishmania major. We found that low parasite doses induced a Th2 response in C57BL/6 (B6) mice, whereas high doses induced a Th1 response. However, the Th2 response in low dose-infected mice was transient and the animals healed. The appearance of a Th1 response after low dose infection was dependent upon the concomitant activation of interferon gamma-producing CD8+ T cells. In the absence of CD8+ T cells, the Th2 response was maintained. However, either neutralization of interleukin (IL)-4 or administration of IL-12 promoted a Th1 response after low dose infection of CD8-deficient mice, indicating that the required role for CD8+ T cells was limited to modulation of CD4+ T cell responses. Thus, the discrepant results seen between in vivo and in vitro studies on the effects of antigen dose on Th cell differentiation may depend upon whether CD8+ T cells participate in the immune response.

Indexed as

AnimalsAntigens, ProtozoanCD8-Positive T-LymphocytesDown-RegulationFemaleInterferon-gammaLeishmania majorLeishmaniasis, CutaneousMiceMice, Inbred C57BLTh2 CellsAntigens, ProtozoanInterferon-gamma

Identifiers

PMID15184505
PMCPMC2211781
OpenAlexW2144939426

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.