Dopaminergic stimulation of myeloid antigen-presenting cells attenuates signal transducer and activator of transcription 3-activation favouring the development of experimental autoimmune encephalomyelitis

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dc.contributor.authorPrado, C.
dc.contributor.authorGaiazzi, M.
dc.contributor.authorGonzález, H.
dc.contributor.authorUgalde, V.
dc.contributor.authorFigueroa, A.
dc.contributor.authorOsorio-Barrios, F.J.
dc.contributor.authorLópez, E.
dc.contributor.authorLladser, A.
dc.contributor.authorRasini, E.
dc.contributor.authorMarino, F.
dc.contributor.authorZaffaroni, M.
dc.contributor.authorCosentino, M.
dc.contributor.authorPacheco, R.
dc.date.accessioned2018-09-25T13:42:21Z
dc.date.available2018-09-25T13:42:21Z
dc.date.issued2018-03
dc.descriptionIndexación: Scopus.es_ES
dc.description.abstractThe dual potential to promote tolerance or inflammation to self-antigens makes dendritic cells (DCs) fundamental players in autoimmunity. Previous results have shown that stimulation of dopamine receptor D5 (DRD5) in DCs potentiates their inflammatory behaviour, favouring the development of experimental autoimmune encephalomyelitis (EAE). Here, we aimed to decipher the underlying mechanism and to test its relevance in multiple sclerosis (MS) patients. Our data shows that DRD5-deficiency confined to DCs in EAE mice resulted in reduced frequencies of CD4+ T-cell subsets with inflammatory potential in the central nervous system, including not only Th1 and Th17 cells but also granulocyte-macrophage colony-stimulating factor producers. Importantly, ex vivo depletion of dopamine from DCs resulted in a dramatic reduction of EAE severity, highlighting the relevance of an autocrine loop promoting inflammation in vivo. Mechanistic analyses indicated that DRD5-signalling in both mouse DCs and human monocytes involves the attenuation of signal transducer and activator of transcription 3-activation, a transcription factor that limits the production of the inflammatory cytokines interleukin (IL)-12 and IL-23. Furthermore, we found an exacerbated expression of all dopamine receptors in peripheral blood pro-inflammatory monocytes obtained from MS patients. These findings illustrate a novel mechanism by which myeloid antigen-presenting cells may trigger the onset of their inflammatory behaviour promoting the development of autoimmunity. © 2018 Prado, Gaiazzi, González, Ugalde, Figueroa, Osorio-Barrios, López, Lladser, Rasini, Marino, Zaffaroni, Cosentino and Pacheco.es_ES
dc.description.urihttps://www.frontiersin.org/articles/10.3389/fimmu.2018.00571/full
dc.identifier.citationFrontiers in Immunology, 9(MAR), art. no. 571.es_ES
dc.identifier.issn1664-3224
dc.identifier.otherDOI: 10.3389/fimmu.2018.00571
dc.identifier.urihttp://repositorio.unab.cl/xmlui/handle/ria/7053
dc.language.isoenes_ES
dc.publisherFrontiers Mediaes_ES
dc.subjectAntigen-presenting cellses_ES
dc.subjectCD4+ T cellses_ES
dc.subjectDopaminees_ES
dc.subjectExperimental autoimmune encephalomyelitises_ES
dc.subjectMultiple sclerosises_ES
dc.titleDopaminergic stimulation of myeloid antigen-presenting cells attenuates signal transducer and activator of transcription 3-activation favouring the development of experimental autoimmune encephalomyelitises_ES
dc.typeArtículoes_ES
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