Evidence map›Paper›PMID 23271661›Full record

ArticleNature communications2012

Extracellular Ca2+ is a danger signal activating the NLRP3 inflammasome through G protein-coupled calcium sensing receptors.

Manuela Rossol, Matthias Pierer, Nora Raulien, Dagmar Quandt, Undine Meusch, Kathrin Rothe, Kristin Schubert, Torsten Schöneberg, Michael Schaefer, Ute Krügel and 4 more

Open access · hybridAbstract read
In one paragraph

Article in Nature communications, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 253 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
253citing papers in PubMed, 1 pooled it
11.3field-weighted citation impact, top 1% 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

253 citing papers in PubMed, 1 synthesis or guideline pooled it, 473 citations in OpenAlex.

  1. The calcium-sensing receptor in sepsis and septic shock, mechanistic pathways and translational perspectives: a systematic review.Inflammation research : official journal of the European Histamine Research Society ... [et al.] · 2026
    Pooled it
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193 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

14 authors at 2 institutions in 2 countries.

Manuela RossolRheumatology Unit, Department of Internal Medicine, University of Leipzig, Leipzig, Germany.
Matthias Pierer
Nora Raulien
Dagmar Quandt
Undine Meusch
Kathrin Rothe
Kristin Schubert
Torsten Schöneberg
Michael Schaefer
Ute Krügel
Sanela Smajilovic
Hans Bräuner-Osborne
Christoph Baerwald
Ulf Wagner
Leipzig University · DEUniversity of Copenhagen · DK

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Activation of the NLRP3 inflammasome enables monocytes and macrophages to release high levels of interleukin-1β during inflammatory responses. Concentrations of extracellular calcium can increase at sites of infection, inflammation or cell activation. Here we show that increased extracellular calcium activates the NLRP3 inflammasome via stimulation of G protein-coupled calcium sensing receptors. Activation is mediated by signalling through the calcium-sensing receptor and GPRC6A via the phosphatidyl inositol/Ca(2+) pathway. The resulting increase in the intracellular calcium concentration triggers inflammasome assembly and Caspase-1 activation. We identified necrotic cells as one source for excess extracellular calcium triggering this activation. In vivo, increased calcium concentrations can amplify the inflammatory response in the mouse model of carrageenan-induced footpad swelling, and this effect was inhibited in GPRC6A(-/-) mice. Our results demonstrate that G-protein-coupled receptors can activate the inflammasome, and indicate that increased extracellular calcium has a role as a danger signal and amplifier of inflammation.

Indexed as

AnimalsCalciumCarrier ProteinsCells, CulturedFemaleHumansInflammasomesInterleukin-1betaMaleMiceMice, Inbred C57BLMice, KnockoutMonocytesNLR Family, Pyrin Domain-Containing 3 ProteinReceptors, Calcium-SensingReceptors, G-Protein-CoupledCalciumCarrier ProteinsGPRC6A protein, humanGPRC6A protein, mouseInflammasomesInterleukin-1betaNLR Family, Pyrin Domain-Containing 3 ProteinNLRP3 protein, humanNlrp3 protein, mouseReceptors, Calcium-SensingReceptors, G-Protein-Coupled

Identifiers

PMID23271661
PMCPMC3535422
OpenAlexW2071517838

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.