Evidence map›Paper›PMID 18802050›Full record

ArticleJournal of immunology (Baltimore, Md. : 1950)2008

Only a subset of phosphoantigen-responsive gamma9delta2 T cells mediate protective tuberculosis immunity.

Charles T Spencer, Getahun Abate, Azra Blazevic, Daniel F Hoft

Open access · bronzeAbstract readComparative Study
In one paragraph

Article in Journal of immunology (Baltimore, Md. : 1950), 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 71 papers.

0numbers the graph read from it
0cells of the map it votes in
71citing papers in PubMed
2.2field-weighted citation impact, top 13% 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

71 citing papers in PubMed, 108 citations in OpenAlex.

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  9. A Novel Role for γδ T Cells in Protection Against Severe Melioidosis.American journal of respiratory cell and molecular biology · 2024
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  18. Cell reports methods · 2022
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11 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

4 authors at 1 institution in 2 countries.

Charles T SpencerDepartment of Internal Medicine, Saint Louis University, St. Louis, MO 63104, USA.
Getahun Abate
Azra Blazevic
Daniel F Hoft
Saint Louis University · US

Funding

Role of gammadelta T Cells in Vaccine-Induced ImmunityR01AI048391 · NIAID · SAINT LOUIS UNIVERSITY · PI HOFT, DANIEL F. · 2002 to 2019
$6.1M
EVALUATION OF CONTROL MEASURES AGAINST DISEASES OTHER THAN AIDS-266025464N01AI025464 · NIAID · SAINT LOUIS UNIVERSITY · PI CHAPLESKI, ELIZABETH · 2003 to 2006
–
NIAID NIH HHS N01 AI025464NIAID NIH HHS N01-AI-25464NIAID NIH HHS R01 AI048391NIAID NIH HHS R01-AI-48391
6 · The paper itself

Abstract

Mycobacterium tuberculosis and Mycobacterium bovis bacillus Calmette-Guérin (BCG) induce potent expansions of human memory Vgamma(9)(+)Vdelta(2)(+) T cells capable of IFN-gamma production, cytolytic activity, and mycobacterial growth inhibition. Certain phosphoantigens expressed by mycobacteria can stimulate gamma(9)delta(2) T cell expansions, suggesting that purified or synthetic forms of these phosphoantigens may be useful alone or as components of new vaccines or immunotherapeutics. However, we show that while mycobacteria-activated gamma(9)delta(2) T cells potently inhibit intracellular mycobacterial growth, phosphoantigen-activated gamma(9)delta(2) T cells fail to inhibit mycobacteria, although both develop similar effector cytokine and cytolytic functional capacities. gamma(9)delta(2) T cells receiving TLR-mediated costimulation during phosphoantigen activation also failed to inhibit mycobacterial growth. We hypothesized that mycobacteria express Ags, other than the previously identified phosphoantigens, that induce protective subsets of gamma(9)delta(2) T cells. Testing this hypothesis, we compared the TCR sequence diversity of gamma(9)delta(2) T cells expanded with BCG-infected vs phosphoantigen-treated dendritic cells. BCG-stimulated gamma(9)delta(2) T cells displayed a more restricted TCR diversity than phosphoantigen-activated gamma(9)delta(2) T cells. In addition, only a subset of phosphoantigen-activated gamma(9)delta(2) T cells functionally responded to mycobacteria-infected dendritic cells. Furthermore, differential inhibitory functions of BCG- and phosphoantigen-activated gamma(9)delta(2) T cells were confirmed at the clonal level and were not due to differences in TCR avidity. Our results demonstrate that BCG infection can activate and expand protective subsets of phosphoantigen-responsive gamma(9)delta(2) T cells, and provide the first indication that gamma(9)delta(2) T cells can develop pathogen specificity similar to alphabeta T cells. Specific targeting of protective gamma(9)delta(2) T cell subsets will be important for future tuberculosis vaccines.

Indexed as

Amino Acid SequenceAntigens, BacterialCell LineClone CellsHemiterpenesHumansImmunity, InnateLymphocyte ActivationMolecular Sequence DataMycobacterium bovisOrganophosphorus CompoundsReceptors, Antigen, T-Cell, gamma-deltaT-Lymphocyte SubsetsTuberculosis, PulmonaryAntigens, BacterialHemiterpenesisopentenyl pyrophosphateOrganophosphorus CompoundsReceptors, Antigen, T-Cell, gamma-delta

Identifiers

PMID18802050
PMCPMC2670066
OpenAlexW1724974106

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.