Evidence map›Paper›PMID 25098291›Full record

ArticleJournal of immunology (Baltimore, Md. : 1950)2014

The immunotherapeutic role of regulatory T cells in Leishmania (Viannia) panamensis infection.

Allison Ehrlich, Tiago Moreno Castilho, Karen Goldsmith-Pestana, Wook-Jin Chae, Alfred L M Bothwell, Tim Sparwasser, Diane McMahon-Pratt

Open access · bronzeAbstract read
In one paragraph

Article in Journal of immunology (Baltimore, Md. : 1950), 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed
3.2field-weighted citation impact, top 8% 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

25 citing papers in PubMed, 44 citations in OpenAlex.

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  14. Antileishmanial activity of a new chloroquine analog in an animal model of Leishmania panamensis infection.International journal for parasitology. Drugs and drug resistance · 2020
    Article
  15. A Nutritional Supplement (DìLshAnimals : an open access journal from MDPI · 2020
    Article
  16. Circulatory microRNAs: promising non-invasive prognostic and diagnostic biomarkers for parasitic infections.European journal of clinical microbiology & infectious diseases : official publication of the European Society of Clinical Microbiology · 2020
    Review
  17. Article
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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

7 authors at 2 institutions in 2 countries.

Allison EhrlichDepartment of Epidemiology of Microbial Diseases, Yale School of Public Health, New Haven, CT 06520;
Tiago Moreno CastilhoDepartment of Epidemiology of Microbial Diseases, Yale School of Public Health, New Haven, CT 06520;
Karen Goldsmith-PestanaDepartment of Epidemiology of Microbial Diseases, Yale School of Public Health, New Haven, CT 06520;
Wook-Jin ChaeDepartment of Immunobiology, Yale School of Medicine, New Haven, CT 06520; and.
Alfred L M BothwellDepartment of Immunobiology, Yale School of Medicine, New Haven, CT 06520; and.
Tim SparwasserInstitute of Infection Immunology, Centre for Experimental and Clinical Infection Research, TWINCORE, 30625 Hanover, Germany.
Diane McMahon-PrattDepartment of Epidemiology of Microbial Diseases, Yale School of Public Health, New Haven, CT 06520; diane.mcmahon-pratt@yale.edu.
Yale University · USCenter for Experimental and Clinical Infection Research · DE

Funding

Training in Parasitology and Vector BiologyT32AI007404 · NIAID · YALE UNIVERSITY · PI TSCHUDI, CHRISTIAN · 1991 to 2017
$3.8M
Improved Treatment of American Cutaneous Leishmaniasis by ImmunomodulationR01AI093775 · NIAID · YALE UNIVERSITY · PI GORE SARAVIA, NANCY, MCMAHON PRATT, DIANE · 2011 to 2014
$2.6M
NIAID NIH HHS R01 AI093775NIAID NIH HHS R01AI093775NIAID NIH HHS T32 AI007404NIAID NIH HHS T32AI07404
6 · The paper itself

Abstract

Leishmania (Viannia) parasites are etiological agents of cutaneous leishmaniasis in the New World. Infection is characterized by a mixed Th1/Th2 inflammatory response, which contributes to disease pathology. However, the role of regulatory T cells (Tregs) in Leishmania (Viannia) disease pathogenesis is unclear. Using the mouse model of chronic L. (V.) panamensis infection, we examined the hypothesis that Treg functionality contributes to control of pathogenesis. Upon infection, Tregs (CD4(+)Foxp3(+)) presented with a dysregulated phenotype, in that they produced IFN-γ, expressed Tbet, and had a reduced ability to suppress T cell proliferation in vitro. Targeted ablation of Tregs resulted in enlarged lesions, increased parasite load, and enhanced production of IL-17 and IFN-γ, with no change in IL-10 and IL-13 levels. This indicated that an increased inflammatory response was commensurate with disease exacerbation and that the remaining impaired Tregs were important in regulation of disease pathology. Conversely, adoptive transfer of Tregs from naive mice halted disease progression, lowered parasite burden, and reduced cytokine production (IL-10, IL-13, IL-17, IFN-γ). Because Tregs appeared to be important for controlling infection, we hypothesized that their expansion could be used as an immunotherapeutic treatment approach. As a proof of principle, chronically infected mice were treated with rIL-2/anti-IL-2 Ab complex to expand Tregs. Treatment transitorily increased the numbers and percentage of Tregs (draining lymph node, spleen), which resulted in reduced cytokine responses, ameliorated lesions, and reduced parasite load (10(5)-fold). Thus, immunotherapy targeting Tregs could provide an alternate treatment strategy for leishmaniasis caused by Leishmania (Viannia) parasites.

Indexed as

Immunotherapy, AdoptiveAnimalsAntibodiesAntigen-Antibody ComplexCell ProliferationFemaleIndoleamine-Pyrrole 2,3,-DioxygenaseInflammationInterferon-gammaInterleukin-10Interleukin-13Interleukin-17Interleukin-2Leishmania guyanensisLeishmaniasis, MucocutaneousLymphocyte CountAntibodiesAntigen-Antibody ComplexIL10 protein, mouseIndoleamine-Pyrrole 2,3,-DioxygenaseInterferon-gammaInterleukin-10Interleukin-13Interleukin-17Interleukin-2Transforming Growth Factor beta

Identifiers

PMID25098291
PMCPMC4170189
OpenAlexW2159048228

What OpenQuestion holds

Textmetadata
LicenceTDM
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.