Evidence map›Paper›PMID 14657221›Full record

ArticleThe Journal of experimental medicine2003

Leishmania major LACK antigen is required for efficient vertebrate parasitization.

Ben L Kelly, Daniel B Stetson, Richard M Locksley

Abstract read
In one paragraph

Article in The Journal of experimental medicine, 2003. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 43 papers.

0numbers the graph read from it
0cells of the map it votes in
43citing 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

43 citing papers in PubMed.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Review
  6. Article
  7. Evaluation ofMicrobiology spectrum · 2025
    Article
  8. Article
  9. Article
  10. Article
  11. Review
  12. Article
  13. Identification ofMicroorganisms · 2022
    Article
  14. Review
  15. Proteomic Analysis ofPathogens (Basel, Switzerland) · 2021
    Article
  16. Article
  17. Leishmaniasis.Indian journal of critical care medicine : peer-reviewed, official publication of Indian Society of Critical Care Medicine · 2021
    Article
  18. Visualizing theFrontiers in immunology · 2021
    Review
  19. Article
  20. Prediction ofGalen medical journal · 2018
    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

3 authors.

Ben L KellyHoward Hughes Medical Institute, Department of Medicine, University of California San Francisco, San Francisco, CA 94143, USA.
Daniel B Stetson
Richard M Locksley

Funding

Parasite immunity orchestrated by type 2 immune cellsR01AI026918 · NIAID · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI LOCKSLEY, RICHARD M · 1988 to 2022
$3.8M
Parasite Immunity Orchestrated by Th2 CellsR37AI026918 · NIAID · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI LOCKSLEY, RICHARD M · 2006 to 2015
$3.8M
NIAID NIH HHS AI26918
6 · The paper itself

Abstract

The Leishmania major LACK antigen is a key target of the immune response in susceptible BALB/c mice and remains a viable vaccine candidate for human leishmaniasis. We describe the genomic organization of the four lack genes in the L. major diploid genome together with results of selected lack gene targeting. Parasites containing a single lack gene in either the upstream or downstream locus grew comparably to wild-type promastigotes in vitro, but failed to parasitize BALB/c mice efficiently, even in a T cell-deficient environment. The replication of single copy lack mutants as amastigotes was attenuated in macrophages in vitro, and parasites failed to increase in numbers in immunodeficient mice, despite their persistence over months. Complementation with an additional lack copy was sufficient to induce robust lesion development, which also occurred using parasites with two lack genes. Conversely, attempts to generate lack-null parasites failed, suggesting that LACK is required for parasite viability. These data suggest that LACK is critical for effective mammalian parasitization and thus represents a potential drug target for leishmaniasis.

Indexed as

AnimalsAntigens, ProtozoanBlotting, SouthernBlotting, WesternGenes, ProtozoanGene TargetingLeishmania majorMacrophagesMiceMice, Inbred BALB CMicroscopy, FluorescenceProtozoan ProteinsTemperatureAntigens, ProtozoanLACK antigen, LeishmaniaProtozoan Proteins

Identifiers

PMID14657221
PMCPMC2194132

What OpenQuestion holds

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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.