Evidence map›Paper›PMID 19801983›Full record

ArticleNature immunology2009

An endogenous positively selecting peptide enhances mature T cell responses and becomes an autoantigen in the absence of microRNA miR-181a.

Peter J R Ebert, Shan Jiang, Jianming Xie, Qi-Jing Li, Mark M Davis

Open access · greenAbstract read
In one paragraph

Article in Nature immunology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 144 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
144citing papers in PubMed, 1 pooled it
7.2field-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

144 citing papers in PubMed, 1 synthesis or guideline pooled it, 252 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Article
  4. Review
  5. Review
  6. Article
  7. Review
  8. The partitioning of TCR repertoires by thymic selection.The Journal of experimental medicine · 2024
    Review
  9. Article
  10. Article
  11. Article
  12. Review
  13. Article
  14. Memory-phenotype CD4JMA journal · 2022
    Review
  15. Review
  16. Homeostasis of Naive and Memory T Lymphocytes.Cold Spring Harbor perspectives in biology · 2021
    Review
  17. Review
  18. Article
  19. Review
  20. Article

84 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

5 authors at 2 institutions in 1 country.

Peter J R EbertThe Howard Hughes Medical Institute, Stanford University School of Medicine, Stanford, California, USA.
Shan Jiang
Jianming Xie
Qi-Jing Li
Mark M Davis
Stanford University · USDuke Medical Center · US

Funding

T CELL RECEPTOR STRUCTURE AND EXPRESSIONR01AI022511 · NIAID · STANFORD UNIVERSITY · PI DAVIS, MARK MORRIS · 1985 to 2014
$3.3M
MicroRNAs as T cell sensitivity RheostatsR01AI073724 · NIAID · STANFORD UNIVERSITY · PI NOLAN, GARRY P · 2009 to 2013
$2.0M
MURINE T-CELL RECEPTOR STRUCTURE AND RECOGNITIONR37AI022511 · NIAID · STANFORD UNIVERSITY · PI DAVIS, MARK MORRIS · 1995 to 2004
$1.3M
Howard Hughes Medical InstituteNIAID NIH HHS R01 AI022511NIAID NIH HHS R01 AI073724NIAID NIH HHS R37 AI022511
6 · The paper itself

Abstract

Thymic positive selection is based on the interactions of T cell antigen receptors (TCRs) with self peptide-major histocompatibility complex (MHC) ligands, but the identity of selecting peptides for MHC class II-restricted TCRs and the functional consequences of this peptide specificity are not clear. Here we identify several endogenous self peptides that positively selected the MHC class II-restricted 5C.C7 TCR. The most potent of these also enhanced mature T cell activation, which supports the hypothesis that one function of positive selection is to produce T cells that can use particular self peptide-MHC complexes for activation and/or homeostasis. We also show that inhibiting the microRNA miR-181a resulted in maturation of T cells that overtly reacted toward these erstwhile positively selecting peptides. Therefore, miR-181a helps to guarantee the clonal deletion of particular moderate-affinity clones by modulating the TCR signaling threshold of thymocytes.

Indexed as

Lymphocyte ActivationAnimalsCells, CulturedClonal DeletionGene Expression RegulationHistocompatibility Antigens Class IIMiceMice, KnockoutMicroRNAsPeptidesReceptors, Antigen, T-CellThymus GlandT-LymphocytesHistocompatibility Antigens Class IIMicroRNAsmirn181 microRNA, mousePeptidesReceptors, Antigen, T-Cell

Identifiers

PMID19801983
PMCPMC3762483
OpenAlexW2103780522

What OpenQuestion holds

Textmetadata
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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.