Evidence map›Paper›PMID 19252491›Full record

ArticleNature immunology2009

Cannabinoid receptor 2 mediates the retention of immature B cells in bone marrow sinusoids.

João P Pereira, Jinping An, Ying Xu, Yong Huang, Jason G Cyster

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 121 papers.

0numbers the graph read from it
0cells of the map it votes in
121citing papers in PubMed
8.4field-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

121 citing papers in PubMed, 203 citations in OpenAlex.

  1. Article
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  4. Review
  5. Article
  6. Lymphotoxin beta receptorInfection and immunity · 2025
    Article
  7. Article
  8. Article
  9. Article
  10. Review
  11. Review
  12. Article
  13. Article
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  15. Article
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  17. Review
  18. Review
  19. Expression and Functions of the CBFrontiers in pharmacology · 2022
    Article
  20. Article

61 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

5 authors at 2 institutions in 1 country.

João P PereiraHoward Hughes Medical Institute and Department of Microbiology and Immunology, University of California San Francisco, USA.
Jinping An
Ying Xu
Yong Huang
Jason G Cyster
Howard Hughes Medical Institute · USUniversity of California, San Francisco · US

Funding

B LYMPHOCYTE MIGRATION AND HOMEOSTASISR01AI040098 · NIAID · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI Jason G Cyster · 1997 to 2026
$7.0M
Beta Lymphocyte Migration and HomeostasisR37AI040098 · NIAID · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI CYSTER, JASON G · 2002 to 2011
$3.2M
Howard Hughes Medical InstituteNIAID NIH HHS N01 AI040098NIAID NIH HHS R37 AI040098
6 · The paper itself

Abstract

Immature B cells developing in the bone marrow are found in the parenchyma and sinusoids. The mechanisms that control the positioning of B cells in the sinusoids are not understood. Here we show that the integrin alpha(4)beta(1) (VLA-4) and its ligand VCAM-1 were required, whereas the chemokine receptor CXCR4 was dispensable, for sinusoidal retention of B cells. Instead, cannabinoid receptor 2 (CB2), a Galpha(i) protein-coupled receptor upregulated in immature B cells, was required for sinusoidal retention. Using two-photon microscopy, we found immature B cells entering and crawling in sinusoids; these immature B cells were displaced by CB2 antagonism. Moreover, CB2-deficient mice had a lower frequency of immunoglobulin lambda-chain-positive B cells in the peripheral blood and spleen. Our findings identify unique requirements for the retention of B cells in the bone marrow sinusoidal niche and suggest involvement of CB2 in the generation of the B cell repertoire.

Indexed as

AnimalsBone MarrowCell MovementGTP-Binding Protein alpha SubunitsImmunoglobulin lambda-ChainsIntegrin alpha4beta1MiceMice, Inbred C57BLMice, KnockoutPrecursor Cells, B-LymphoidReceptor, Cannabinoid, CB2Receptors, CXCR4SpleenUp-RegulationVascular Cell Adhesion Molecule-1CXCR4 protein, mouseGTP-Binding Protein alpha SubunitsImmunoglobulin lambda-ChainsIntegrin alpha4beta1Receptor, Cannabinoid, CB2Receptors, CXCR4Vascular Cell Adhesion Molecule-1

Identifiers

PMID19252491
PMCPMC2768754
OpenAlexW2105708181

What OpenQuestion holds

Textmetadata
LicenceTDM
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.