Evidence map›Paper›PMID 25086774›Full record

ArticleNature immunology2014

Activation of a G protein-coupled receptor by its endogenous ligand triggers the innate immune response of Caenorhabditis elegans.

Olivier Zugasti, Neelanjan Bose, Barbara Squiban, Jérôme Belougne, C Léopold Kurz, Frank C Schroeder, Nathalie Pujol, Jonathan J Ewbank

Open access · greenAbstract read
In one paragraph

Article in Nature immunology, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 86 papers.

0numbers the graph read from it
0cells of the map it votes in
86citing papers in PubMed
4.1field-weighted citation impact, top 5% 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

86 citing papers in PubMed, 142 citations in OpenAlex.

  1. Article
  2. Article
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  4. Novel infection byInfection and immunity · 2026
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  5. Pre-cuticle DPY-6 acts as a blueprint for aECM periodic organization inbioRxiv : the preprint server for biology · 2026
    Article
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  18. iScience · 2024
    Article
  19. Review
  20. Review

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

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

8 authors at 2 institutions in 2 countries.

Olivier Zugasti1] Centre d'Immunologie de Marseille-Luminy, UM2 Aix-Marseille Université, Case 906, Marseille, France. [2] INSERM, U1104, 13288 Marseille, France. [3] CNRS, UMR7280, Marseille, France.
Neelanjan BoseDepartment of Chemistry and Chemical Biology, Boyce Thompson Institute, Cornell University, Ithaca, New York, USA.
Barbara Squiban1] Centre d'Immunologie de Marseille-Luminy, UM2 Aix-Marseille Université, Case 906, Marseille, France. [2] INSERM, U1104, 13288 Marseille, France. [3] CNRS, UMR7280, Marseille, France. [4].
Jérôme Belougne1] Centre d'Immunologie de Marseille-Luminy, UM2 Aix-Marseille Université, Case 906, Marseille, France. [2] INSERM, U1104, 13288 Marseille, France. [3] CNRS, UMR7280, Marseille, France.
C Léopold Kurz1] Centre d'Immunologie de Marseille-Luminy, UM2 Aix-Marseille Université, Case 906, Marseille, France. [2] INSERM, U1104, 13288 Marseille, France. [3] CNRS, UMR7280, Marseille, France. [4].
Frank C SchroederDepartment of Chemistry and Chemical Biology, Boyce Thompson Institute, Cornell University, Ithaca, New York, USA.
Nathalie Pujol1] Centre d'Immunologie de Marseille-Luminy, UM2 Aix-Marseille Université, Case 906, Marseille, France. [2] INSERM, U1104, 13288 Marseille, France. [3] CNRS, UMR7280, Marseille, France.
Jonathan J Ewbank1] Centre d'Immunologie de Marseille-Luminy, UM2 Aix-Marseille Université, Case 906, Marseille, France. [2] INSERM, U1104, 13288 Marseille, France. [3] CNRS, UMR7280, Marseille, France.ORCID 0000000212576862
Centre National de la Recherche Scientifique · FRCornell University · US

Funding

Enhancing and expanding the CGC Strain CollectionP40OD010440 · OD · UNIVERSITY OF MINNESOTA · PI Ann E. Rougvie · 2012 to 2026
$7.5M
Small Molecule Signaling in Caenorhabditis elegansR01GM088290 · NIGMS · BOYCE THOMPSON INST FOR PLANT RESEARCH · PI SCHROEDER, FRANK CLEMENS · 2010 to 2017
$2.2M
NIGMS NIH HHS GM088290NIGMS NIH HHS R01 GM088290NIH HHS P40 OD010440
6 · The paper itself

Abstract

Immune defenses are triggered by microbe-associated molecular patterns or as a result of damage to host cells. The elicitors of immune responses in the nematode Caenorhabditis elegans are unclear. Using a genome-wide RNA-mediated interference (RNAi) screen, we identified the G protein-coupled receptor (GPCR) DCAR-1 as being required for the response to fungal infection and wounding. DCAR-1 acted in the epidermis to regulate the expression of antimicrobial peptides via a conserved p38 mitogen-activated protein kinase pathway. Through targeted metabolomics analysis we identified the tyrosine derivative 4-hydroxyphenyllactic acid (HPLA) as an endogenous ligand. Our findings reveal DCAR-1 and its cognate ligand HPLA to be triggers of the epidermal innate immune response in C. elegans and highlight the ancient role of GPCRs in host defense.

Indexed as

AnimalsCaenorhabditis elegansCaenorhabditis elegans ProteinsEpidermisImmunity, InnateLigandsMAP Kinase Signaling SystemMycosesPhenylpropionatesReceptors, G-Protein-CoupledRNA InterferenceWounds and Injuries4-hydroxyphenyllactic acidCaenorhabditis elegans Proteinsdihydrocaffeic acid receptor 1, C elegansLigandsPhenylpropionatesReceptors, G-Protein-Coupled

Identifiers

PMID25086774
PMCPMC4139443
OpenAlexW1970762617

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.