Evidence map›Paper›PMID 16924491›Full record

ArticleImmunogenetics2006

Formation of B and T cell subsets require the cannabinoid receptor CB2.

David Ziring, Bo Wei, Peter Velazquez, Matthew Schrage, Nancy E Buckley, Jonathan Braun

Abstract read
PubMed Publisher
In one paragraph

Article in Immunogenetics, 2006. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 46 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
46citing papers in PubMed, 1 pooled it
3.8field-weighted citation impact, top 7% 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

46 citing papers in PubMed, 1 synthesis or guideline pooled it, 96 citations in OpenAlex.

  1. Pooled it
  2. Chemical Probes for Investigating the Endocannabinoid System.Current topics in behavioral neurosciences · 2026
    Review
  3. Article
  4. Article
  5. Review
  6. Article
  7. Article
  8. Role of the Endocannabinoid System in the Regulation of Intestinal Homeostasis.Cellular and molecular gastroenterology and hepatology · 2022
    Review
  9. Review
  10. Article
  11. Article
  12. The Potential Use of Cannabis in Tissue Fibrosis.Frontiers in cell and developmental biology · 2021
    Review
  13. Article
  14. Article
  15. Paternal activation of CBScientific reports · 2019
    Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. GαFrontiers in immunology · 2018
    Article
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

6 authors at 2 institutions in 1 country.

David ZiringDepartment of Pediatrics, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA 90095, USA.
Bo Wei
Peter Velazquez
Matthew Schrage
Nancy E Buckley
Jonathan Braun
University of California, Los Angeles · USCalifornia State Polytechnic University · US

Funding

Women's CancersP30CA016042 · NCI · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI Samuel Wheeler French · 1985 to 2026
$134.5M
Using polygenic scores to enhance both variant discovery, and understanding of functional consequences of genetic variation in IBD.P01DK046763 · NIDDK · CEDARS-SINAI MEDICAL CENTER · PI TARGAN, STEPHAN R. · 1992 to 2020
$31.1M
The Response of Choline and Folate Status to Controlled Levels of Choline IntakeS06GM053933 · NIGMS · CALIFORNIA STATE POLY U POMONA · PI LAMUNYON, CRAIG W · 1997 to 2007
$15.1M
Regulatory B Cells in Mucosal Homeostasis and IBDR01DK069434 · NIDDK · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI BRAUN, JONATHAN · 2005 to 2010
$1.3M
IEL B-cells: Phenotype and Developmental RequirementsF31AI058919 · NIAID · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI VELAZQUEZ, PETER · 2004 to 2004
$28k
NCI NIH HHS CA16042NIAID NIH HHS AI58919NIDDK NIH HHS DK46763NIDDK NIH HHS DK69434NIGMS NIH HHS GM53933
6 · The paper itself

Abstract

A recent and surprising body of research has linked changes in immune function to biologic and therapeutic targeting of cannabinoid receptors, which prototypically respond to delta-9 tetrahydrocannabinol. The peripheral cannabinoid receptor CB2 is highly expressed in immune cell types (macrophages, dendritic cells, and B cells), and pharmacologically alters their cytokine production and responsiveness. Accordingly, cannabinoid agonists can powerfully alter susceptibility to certain microbial infections, atherosclerosis, and cancer immunotherapy. What is unknown is the physiologic role of natural levels of endocannabinoids and their receptors in normal immune homeostasis. Galphai2-/- mice are deficient in the formation of certain B and T cell subsets and are susceptible to immune dysregulation, notably developing inflammatory bowel disease. A key issue is the identity of the Gi-coupled receptors relevant to this Galphai2-signaling pathway. We find that mice deficient in CB2, the Gi-coupled peripheral endocannabinoid receptor, have profound deficiencies in splenic marginal zone, peritoneal B1a cells, splenic memory CD4+ T cells, and intestinal natural killer cells and natural killer T cells. These findings partially phenocopy and extend the lymphocyte developmental disorder associated with the Galphai2-/- genotype, and suggest that the endocannabinoid system is required for the formation of T and B cell subsets involved in immune homeostasis. This noncompensatable requirement for physiologic function of the endocannabinoid system is novel. Because levels of endocannabinoids are highly restricted microanatomically, local regulation of their production and receptor expression offers a new principle for regional immune homeostasis and disease susceptibility, and extends and refines the rationale for CB2-targeted immunotherapy in immune and inflammatory diseases.

Indexed as

AnimalsBase SequenceB-Lymphocyte SubsetsDNAGene ExpressionGTP-Binding Protein alpha Subunit, Gi2Immunologic MemoryIntestinal MucosaKiller Cells, NaturalMiceMice, Inbred C3HMice, Inbred C57BLMice, KnockoutOrgan SpecificityPhenotypeReceptor, Cannabinoid, CB2DNAGnai2 protein, mouseGTP-Binding Protein alpha Subunit, Gi2Receptor, Cannabinoid, CB2

Identifiers

PMID16924491
OpenAlexW2037874848

What OpenQuestion holds

Textmetadata
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.