Evidence map›Paper›PMID 26522434›Full record

ArticleNeuropharmacology2016

Allosteric modulation of metabotropic glutamate receptor 4 activates IDO1-dependent, immunoregulatory signaling in dendritic cells.

Claudia Volpi, Giada Mondanelli, Maria T Pallotta, Carmine Vacca, Alberta Iacono, Marco Gargaro, Elisa Albini, Roberta Bianchi, Maria L Belladonna, Sylvain Celanire and 16 more

Open access · hybridAbstract read
In one paragraph

Article in Neuropharmacology, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
0.9field-weighted citation impact, top 32% 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

17 citing papers in PubMed, 30 citations in OpenAlex.

  1. Modulating glutamate neurotransmission inFrontiers in immunology · 2026
    Review
  2. Review
  3. Article
  4. Article
  5. Article
  6. Article
  7. Review
  8. Article
  9. Article
  10. Review
  11. Positive allosteric modulation of indoleamine 2,3-dioxygenase 1 restrains neuroinflammation.Proceedings of the National Academy of Sciences of the United States of America · 2020
    Article
  12. Frontiers in pharmacology · 2020
    Article
  13. Article
  14. Article
  15. Review
  16. Article
  17. 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

26 authors at 4 institutions in 2 countries.

Claudia VolpiDepartment of Experimental Medicine, University of Perugia, Piazzale Gambuli 1, 06132 Perugia, Italy.
Giada MondanelliDepartment of Experimental Medicine, University of Perugia, Piazzale Gambuli 1, 06132 Perugia, Italy.
Maria T PallottaDepartment of Experimental Medicine, University of Perugia, Piazzale Gambuli 1, 06132 Perugia, Italy.
Carmine VaccaDepartment of Experimental Medicine, University of Perugia, Piazzale Gambuli 1, 06132 Perugia, Italy.
Alberta IaconoDepartment of Experimental Medicine, University of Perugia, Piazzale Gambuli 1, 06132 Perugia, Italy.
Marco GargaroDepartment of Experimental Medicine, University of Perugia, Piazzale Gambuli 1, 06132 Perugia, Italy.
Elisa AlbiniDepartment of Experimental Medicine, University of Perugia, Piazzale Gambuli 1, 06132 Perugia, Italy.
Roberta BianchiDepartment of Experimental Medicine, University of Perugia, Piazzale Gambuli 1, 06132 Perugia, Italy.
Maria L BelladonnaDepartment of Experimental Medicine, University of Perugia, Piazzale Gambuli 1, 06132 Perugia, Italy.
Sylvain CelanireAddex Therapeutics, Chemin des Aulx 14, 1228, Plans les Ouates, Geneva, Switzerland.
Céline MordantAddex Therapeutics, Chemin des Aulx 14, 1228, Plans les Ouates, Geneva, Switzerland.
Madeleine HerouxAddex Therapeutics, Chemin des Aulx 14, 1228, Plans les Ouates, Geneva, Switzerland.
Isabelle Royer-UriosAddex Therapeutics, Chemin des Aulx 14, 1228, Plans les Ouates, Geneva, Switzerland.
Manfred SchneiderAddex Therapeutics, Chemin des Aulx 14, 1228, Plans les Ouates, Geneva, Switzerland.
Pierre-Alain VitteAddex Therapeutics, Chemin des Aulx 14, 1228, Plans les Ouates, Geneva, Switzerland.
Mathias CacquevelAddex Therapeutics, Chemin des Aulx 14, 1228, Plans les Ouates, Geneva, Switzerland.
Laurent GalibertAddex Therapeutics, Chemin des Aulx 14, 1228, Plans les Ouates, Geneva, Switzerland.
Sonia-Maria PoliAddex Therapeutics, Chemin des Aulx 14, 1228, Plans les Ouates, Geneva, Switzerland.
Aldo SolariDepartment of Economics, Management, and Statistics, University of Milano-Bicocca, Piazza dell'Ateneo Nuovo 1, 20126 Milano, Italy.
Silvio BicciatoDepartment of Life Sciences, Via G. Campi 287, University of Modena and Reggio Emilia, 41100 Modena, Italy.
Mario CalvittiDepartment of Experimental Medicine, University of Perugia, Piazzale Gambuli 1, 06132 Perugia, Italy.
Cinzia AntognelliDepartment of Experimental Medicine, University of Perugia, Piazzale Gambuli 1, 06132 Perugia, Italy.
Paolo PuccettiDepartment of Experimental Medicine, University of Perugia, Piazzale Gambuli 1, 06132 Perugia, Italy.
Ciriana OrabonaDepartment of Experimental Medicine, University of Perugia, Piazzale Gambuli 1, 06132 Perugia, Italy.
Francesca FallarinoDepartment of Experimental Medicine, University of Perugia, Piazzale Gambuli 1, 06132 Perugia, Italy.
Ursula GrohmannDepartment of Experimental Medicine, University of Perugia, Piazzale Gambuli 1, 06132 Perugia, Italy. Electronic address: ugrohmann@tin.it.
University of Perugia · ITAddex Therapeutics (Switzerland) · CHUniversity of Milano-Bicocca · ITUniversity of Modena and Reggio Emilia · IT

Funding

European Research Council 338954
6 · The paper itself

Abstract

Metabotropic glutamate receptor 4 (mGluR4) possesses immune modulatory properties in vivo, such that a positive allosteric modulator (PAM) of the receptor confers protection on mice with relapsing-remitting experimental autoimmune encephalomyelitis (RR-EAE). ADX88178 is a newly-developed, one such mGluR4 modulator with high selectivity, potency, and optimized pharmacokinetics. Here we found that application of ADX88178 in the RR-EAE model system converted disease into a form of mild-yet chronic-neuroinflammation that remained stable for over two months after discontinuing drug treatment. In vitro, ADX88178 modulated the cytokine secretion profile of dendritic cells (DCs), increasing production of tolerogenic IL-10 and TGF-β. The in vitro effects required activation of a Gi-independent, alternative signaling pathway that involved phosphatidylinositol-3-kinase (PI3K), Src kinase, and the signaling activity of indoleamine 2,3-dioxygenase 1 (IDO1). A PI3K inhibitor as well as small interfering RNA targeting Ido1-but not pertussis toxin, which affects Gi protein-dependent responses-abrogated the tolerogenic effects of ADX88178-conditioned DCs in vivo. Thus our data indicate that, in DCs, highly selective and potent mGluR4 PAMs such as ADX88178 may activate a Gi-independent, long-lived regulatory pathway that could be therapeutically exploited in chronic autoimmune diseases such as multiple sclerosis.

Indexed as

Allosteric RegulationAnimalsDendritic CellsFemaleIndoleamine-Pyrrole 2,3,-DioxygenaseMicePhosphatidylinositol 3-KinasesPyrimidinesReceptors, Metabotropic GlutamateRNA, Small InterferingSignal TransductionThiazoles5-methyl-N-(4-methylpyrimidin-2-yl)-4-(1H-pyrazol-4-yl)thiazol-2-amineIDO1 protein, mouseIndoleamine-Pyrrole 2,3,-Dioxygenasemetabotropic glutamate receptor 4Phosphatidylinositol 3-KinasesPyrimidinesReceptors, Metabotropic GlutamateRNA, Small InterferingThiazolesAutoimmunityDendritic cellsImmune regulationIndoleamine 2,3-dioxygenase 1mGluR4NeuroinflammationNoncanonical GPCR signalingPI3KSrc kinaseTryptophan metabolism

Identifiers

PMID26522434
PMCPMC4720030
OpenAlexW1934532153

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.