Evidence map›Paper›PMID 24129702›Full record

ArticleScience signaling2013

Distinct temporal patterns of T cell receptor signaling during positive versus negative selection in situ.

Heather J Melichar, Jenny O Ross, Paul Herzmark, Kristin A Hogquist, Ellen A Robey

Abstract read
In one paragraph

Article in Science signaling, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 64 papers.

0numbers the graph read from it
0cells of the map it votes in
64citing 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

64 citing papers in PubMed.

  1. Trial
  2. Article
  3. Article
  4. AFrontiers in immunology · 2026
    Article
  5. Article
  6. Article
  7. Article
  8. Review
  9. Article
  10. Review
  11. Review
  12. Article
  13. Article
  14. Article
  15. A Beginner's Guide to T Cell Development.Methods in molecular biology (Clifton, N.J.) · 2023
    Review
  16. Studying T Cell Development in Neonatal and Adult Thymic Slices.Methods in molecular biology (Clifton, N.J.) · 2023
    Article
  17. Article
  18. Article
  19. The ICOS-ICOSL pathway tunes thymic selection.Immunology and cell biology · 2022
    Article
  20. Article

4 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.

Heather J Melichar1Division of Immunology and Pathogenesis, Department of Molecular and Cell Biology, University of California, Berkeley, Berkeley, CA 94720, USA.
Jenny O Ross
Paul Herzmark
Kristin A Hogquist
Ellen A Robey

Funding

Signals That Control Thymocyte MigrationR01AI064227 · NIAID · UNIVERSITY OF CALIFORNIA BERKELEY · PI ELLEN A ROBEY · 2006 to 2026
$7.4M
NIAID NIH HHS AI064227-07NIAID NIH HHS R01 AI064227
6 · The paper itself

Abstract

The recognition by the T cell receptor (TCR) of self-peptides presented by the major histocompatibility complex (MHC) on antigen-presenting cells, such as dendritic cells and thymic epithelial cells, controls T cell fate in the thymus, with weak TCR signals inducing survival (positive selection) and stronger signals inducing death (negative selection). In vitro studies indicate that peptide ligands that induce positive selection stimulate a low, but sustained, pattern of TCR signaling; however, the temporal pattern of TCR signaling in MHC class I-restricted thymocytes (thymocytes that are presented with peptides by MHC class I) in the thymus, under conditions that support positive selection, is unknown. We addressed this question by examining intracellular Ca(2+) dynamics and migratory changes in thymocytes undergoing positive and negative selection in thymic slices. Brief, serial signaling events that were separated by migratory periods and low cytosolic Ca(2+) concentrations correlated with the positive selection of MHC class I-restricted thymocytes, whereas sustained Ca(2+) signaling and the arrest of thymocytes were associated with negative selection. Low-avidity peptides and the presentation of peptides by cortical thymic epithelial cells, rather than dendritic cells, failed to induce strong migratory arrest of thymocytes, which led to transient TCR signaling. Thus, we provide a comparison of positive and negative selection signals in situ and suggest that the absence of strong stop signals distinguishes between positive and negative selection.

Indexed as

AnimalsAntigen PresentationCalciumCell MovementCells, CulturedDendritic CellsFlow CytometryHistocompatibility Antigens Class IMiceMice, Inbred C57BLMice, KnockoutMice, TransgenicMicroscopy, Fluorescence, MultiphotonOrgan Culture TechniquesOvalbuminPeptide FragmentsCalciumHistocompatibility Antigens Class IOvalbuminPeptide FragmentsReceptors, Antigen, T-Cell

Identifiers

PMID24129702
PMCPMC4078262

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Registered trials

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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.