Evidence map›Paper›PMID 18550809›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2008

NK T cells provide lipid antigen-specific cognate help for B cells.

Elizabeth A Leadbetter, Manfred Brigl, Petr Illarionov, Nadia Cohen, Megan C Luteran, Shiv Pillai, Gurdyal S Besra, Michael B Brenner

Open access · bronzeAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 142 papers.

0numbers the graph read from it
0cells of the map it votes in
142citing papers in PubMed
8.0field-weighted citation impact, top 2% 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

142 citing papers in PubMed, 245 citations in OpenAlex.

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  6. [Research progress on the role of invariant natural killer T cells in immune-mediated liver injury].Zhonghua gan zang bing za zhi = Zhonghua ganzangbing zazhi = Chinese journal of hepatology · 2025
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  17. T-betCell metabolism · 2022
    Article
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  20. Review

82 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

8 authors at 4 institutions in 2 countries.

Elizabeth A LeadbetterDivision of Rheumatology, Immunology, and Allergy, Brigham and Women's Hospital, Harvard Medical School, 1 Jimmy Fund Way, Boston, MA 02115, USA.
Manfred Brigl
Petr Illarionov
Nadia Cohen
Megan C Luteran
Shiv Pillai
Gurdyal S Besra
Michael B Brenner
Harvard University · USBrigham and Women's Hospital · USUniversity of Birmingham · GBMassachusetts General Hospital · US

Funding

MECHANISMS OF ARTHRITIC &DERMATOLOGY DISORDERST32AR007530 · NIAMS · BRIGHAM AND WOMEN'S HOSPITAL · PI Michael B. Brenner, Ellen M Gravallese · 1986 to 2026
$10.4M
Medical Research Council G0400421NIAMS NIH HHS T32 AR007530NIAMS NIH HHS T32 AR007530-21
6 · The paper itself

Abstract

The mechanisms of T cell help for production of antilipid antibodies are largely unknown. This study shows that invariant NK T cells (iNK T cells) and B cells cooperate in a model of antilipid antigen-specific antibody responses. We use a model haptenated lipid molecule, 4-hydroxy-3-nitrophenyl-alphaGalactosylCeramide (NP-alphaGalCer), to demonstrate that iNK T cells provide cognate help to lipid-antigen-presenting B cells. B cells proliferate and IgG anti-NP is produced from in vivo-immunized mice and in vitro cocultures of B and NK T cells after exposure to NP-alphaGalCer, but not closely related control glycolipids. This B cell response is absent in CD1d(-/-) and Jalpha18(-/-) mice but not CD4(-/-) mice. The antibody response to NP-alphaGalCer is dominated by the IgM, IgG3, and IgG2c isotypes, and marginal zone B cells stimulate better in vitro lipid antigen-driven proliferation than follicular B cells, suggesting an important role for this B cell subset. iNK T cell help for B cells is shown to involve cognate help from CD1d-instructed lipid-specific iNK T cells, with help provided via CD40L, B7-1/B7-2, and IFN-gamma, but not IL-4. This model provides evidence of iNK T cell help for antilipid antibody production, an important aspect of infections, autoimmune diseases, and vaccine development. Our findings also now allow prediction of those microbial antigens that would be expected to elicit cognate iNKT cell help for antibody production, namely those that can stimulate iNKT cells and at the same time have a polar moiety that can be recognized by antibodies.

Indexed as

Antibody FormationAnimalsAntigen PresentationAntigen-Presenting CellsAntigensB-LymphocytesCD4-Positive T-LymphocytesGalactosylceramidesHaptensImmunoglobulin GImmunoglobulin MKiller Cells, NaturalLymphocyte ActivationMiceMice, Inbred C57BLT-Lymphocyte Subsets4-hydroxy-3-nitrophenylgalactosylceramideAntigensGalactosylceramidesHaptensImmunoglobulin GImmunoglobulin M

Identifiers

PMID18550809
PMCPMC2448838
OpenAlexW2017312699

What OpenQuestion holds

Textmetadata
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.