Evidence map›Paper›PMID 37822497›Full record

ArticleiScience2023

Naive T lymphocytes chemotax long distance to CCL21 but not to a source of bioactive S1P.

Nicolas Garcia-Seyda, Solene Song, Valentine Seveau de Noray, Luc David-Broglio, Christoph Matti, Marc Artinger, Florian Dupuy, Martine Biarnes-Pelicot, Marie-Pierre Valignat, Daniel F Legler and 2 more

Abstract read
In one paragraph

Article in iScience, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing 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

6 citing papers in PubMed.

  1. Article
  2. Article
  3. Regulatory T cell and endothelial cell crosstalk.Nature reviews. Immunology · 2025
    Review
  4. Article
  5. Review
  6. Review
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

12 authors.

Nicolas Garcia-SeydaAix Marseille University, Inserm, CNRS, Turing Center for Living Systems, LAI, Marseille, France.
Solene SongAix Marseille University, Inserm, CNRS, Turing Center for Living Systems, LAI, Marseille, France.
Valentine Seveau de NorayAix Marseille University, Inserm, CNRS, Turing Center for Living Systems, LAI, Marseille, France.
Luc David-BroglioAix Marseille University, Inserm, CNRS, Turing Center for Living Systems, LAI, Marseille, France.
Christoph MattiBiotechnology Institute Thurgau (BITg) at the University of Konstanz, Unterseestrasse 47, 8280 Kreuzlingen, Switzerland.
Marc ArtingerBiotechnology Institute Thurgau (BITg) at the University of Konstanz, Unterseestrasse 47, 8280 Kreuzlingen, Switzerland.
Florian DupuyAix Marseille University, Inserm, CNRS, Turing Center for Living Systems, LAI, Marseille, France.
Martine Biarnes-PelicotAix Marseille University, Inserm, CNRS, Turing Center for Living Systems, LAI, Marseille, France.
Marie-Pierre ValignatAix Marseille University, Inserm, CNRS, Turing Center for Living Systems, LAI, Marseille, France.
Daniel F LeglerBiotechnology Institute Thurgau (BITg) at the University of Konstanz, Unterseestrasse 47, 8280 Kreuzlingen, Switzerland.
Marc BajénoffAix Marseille University, Inserm, CNRS, CIML, Marseille, France.
Olivier TheodolyAix Marseille University, Inserm, CNRS, Turing Center for Living Systems, LAI, Marseille, France.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Naive T lymphocytes traffic through the organism in search for antigen, alternating between blood and secondary lymphoid organs. Lymphocyte homing to lymph nodes relies on CCL21 chemokine sensing by CCR7 receptors, while exit into efferent lymphatics relies on sphingolipid S1P sensing by S1PR1 receptors. While both molecules are claimed chemotactic, a quantitative analysis of naive T lymphocyte migration along defined gradients is missing. Here, we used a reductionist approach to study the real-time single-cell response of naive T lymphocytes to CCL21 and serum rich in bioactive S1P. Using microfluidic and micropatterning ad hoc tools, we show that CCL21 triggers stable polarization and long-range chemotaxis of cells, whereas S1P-rich serum triggers a transient polarization only and no significant displacement, potentially representing a brief transmigration step through exit portals. Our

Indexed as

Cell biologyImmune responseImmunity

Identifiers

PMID37822497
PMCPMC10562802

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.