RT Journal Article T1 Immune Tolerance in the Oral Mucosa A1 Peláez Prestel, Héctor Fernando A1 Sánchez Trincado López, José Luis A1 Lafuente Duarte, Esther María A1 Reche Gallardo, Pedro Antonio AB The oral mucosa is a site of intense immune activity, where a large variety of immune cells meet to provide a first line of defense against pathogenic organisms. Interestingly, the oral mucosa is exposed to a plethora of antigens from food and commensal bacteria that must be tolerated. The mechanisms that enable this tolerance are not yet fully defined. Many works have focused on active immune mechanisms involving dendritic and regulatory T cells. However, epithelial cells also make a major contribution to tolerance by influencing both innate and adaptive immunity. Therefore, the tolerogenic mechanisms concurring in the oral mucosa are intertwined. Here, we review them systematically, paying special attention to the role of oral epithelial cells. PB MDPI SN 1422-0067 YR 2021 FD 2021-11-10 LK https://hdl.handle.net/20.500.14352/5059 UL https://hdl.handle.net/20.500.14352/5059 LA eng NO Comunidad de Madrid NO Universidad Complutense de Madrid DS Docta Complutense RD 1 may 2024