Por favor, use este identificador para citar o enlazar este Item:http://hdl.handle.net/20.500.12105/11478
Título
Dendritic Cells and Microglia Have Non-redundant Functions in the Inflamed Brain with Protective Effects of Type 1 cDCs.
Autor(es)
Gallizioli, Mattia | Miró-Mur, Francesc | Otxoa-de-Amezaga, Amaia | Cugota, Roger | Salas-Perdomo, Angélica | Justicia, Carles | Brait, Vanessa H | Ruiz-Jaén, Francisca | Arbaizar-Rovirosa, Maria | Pedragosa, Jordi | Bonfill-Teixidor, Ester | Gelderblom, Mathias | Magnus, Tim | Cano, Eva ISCIII | del Fresno, Carlos CNIC | Sancho, David CNIC | Planas, Anna M
Fecha de publicación
2020-10-20
Cita
Cell Rep. 2020; 33(3):108291
Idioma
Inglés
Tipo de documento
journal article
Resumen
Brain CD11c+ cells share features with microglia and dendritic cells (DCs). Sterile inflammation increases brain CD11c+ cells, but their phenotype, origin, and functions remain largely unknown. We report that, after cerebral ischemia, microglia attract DCs to the inflamed brain, and astroglia produce Flt3 ligand, supporting development and expansion of CD11c+ cells. CD11c+ cells in the inflamed brain are a complex population derived from proliferating microglia and infiltrating DCs, including a major subset of OX40L+ conventional cDC2, and also cDC1, plasmacytoid, and monocyte-derived DCs. Despite sharing certain morphological features and markers, CD11c+ microglia and DCs display differential expression of pattern recognition receptors and chemokine receptors. DCs excel CD11c- and CD11c+ microglia in the capacity to present antigen through MHCI and MHCII. Of note, cDC1s protect from brain injury after ischemia. We thus reveal aspects of the dynamics and functions of brain DCs in the regulation of inflammation and immunity.
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