Evidence map›Paper›PMID 22613797›Full record

ArticleBlood2012

SAP expression in invariant NKT cells is required for cognate help to support B-cell responses.

Cynthia Detre, Marton Keszei, Natividad Garrido-Mesa, Katalin Kis-Toth, Wilson Castro, Amma F Agyemang, Natacha Veerapen, Gurdyal S Besra, Michael C Carroll, George C Tsokos and 3 more

Abstract read
In one paragraph

Article in Blood, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing 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

21 citing papers in PubMed.

  1. Review
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  14. Role and regulation of CD1d in normal and pathological B cells.Journal of immunology (Baltimore, Md. : 1950) · 2014
    Review
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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

13 authors.

Cynthia DetreDivision of Immunology, Department of Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02115, USA. cdetre@bidmc.harvard.edu
Marton Keszei
Natividad Garrido-Mesa
Katalin Kis-Toth
Wilson Castro
Amma F Agyemang
Natacha Veerapen
Gurdyal S Besra
Michael C Carroll
George C Tsokos
Ninghai Wang
Elizabeth A Leadbetter
Cox Terhorst

Funding

Pilot & Feasibility ProgramP30DK043351 · NIDDK · MASSACHUSETTS GENERAL HOSPITAL · PI RAYMOND T CHUNG · 1991 to 2026
$35.3M
The Slamf3, Slamf5, and Slamf6 receptor-induced pathways to murine lupusP01AI065687 · NIAID · BETH ISRAEL DEACONESS MEDICAL CENTER · PI SHARPE, ARLENE H. · 2006 to 2016
$14.7M
TRANSGENIC MODELS OF T CELL RECEPTOR IMMUNODEFICIENCIESP01AI035714 · NIAID · BETH ISRAEL DEACONESS MEDICAL CENTER · PI TERHORST, CORNELIS P · 1994 to 2007
$9.3M
NIAID NIH HHS P01 AI035714NIAID NIH HHS P01 AI065687NIAID NIH HHS P01 AI 35714NIAID NIH HHS R01 AI 065687NIDDK NIH HHS P30 DK043351
6 · The paper itself

Abstract

One of the manifestations of X-linked lymphoproliferative disease (XLP) is progressive agammaglobulinemia, caused by the absence of a functional signaling lymphocyte activation molecule (SLAM)-associated protein (SAP) in T, invariant natural killer T (NKT) cells and NK cells. Here we report that α-galactosylceramide (αGalCer) activated NKT cells positively regulate antibody responses to haptenated protein antigens at multiple checkpoints, including germinal center formation and affinity maturation. Whereas NKT cell-dependent B cell responses were absent in SAP(-/-).B6 mice that completely lack NKT cells, the small number of SAP-deficient NKT cells in SAP(-/-).BALB/c mice adjuvated antibody production, but not the germinal center reaction. To test the hypothesis that SAP-deficient NKT cells can facilitate humoral immunity, SAP was deleted after development in SAP(fl/fl).tgCreERT2.B6 mice. We find that NKT cell intrinsic expression of SAP is dispensable for noncognate helper functions, but is critical for providing cognate help to antigen-specific B cells. These results demonstrate that SLAM-family receptor-regulated cell-cell interactions are not limited to T-B cell conjugates. We conclude that in the absence of SAP, several routes of NKT cell-mediated antibody production are still accessible. The latter suggests that residual NKT cells in XLP patients might contribute to variations in dysgammaglobulinemia.

Indexed as

AnimalsAntineoplastic Agents, HormonalB-LymphocytesCell CommunicationFemaleGalactosylceramidesGene ExpressionGerminal CenterHaptensIntracellular Signaling Peptides and ProteinsKiller Cells, NaturalLymphocyte ActivationLymphoproliferative DisordersMaleMiceMice, Inbred BALB Calpha-galactosylceramideAntineoplastic Agents, HormonalGalactosylceramidesHaptensIntracellular Signaling Peptides and ProteinsSh2d1a protein, mouseSignaling Lymphocytic Activation Molecule Associated ProteinTamoxifen

Identifiers

PMID22613797
PMCPMC3390951

What OpenQuestion holds

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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.