TY - JOUR A1 - Olesch, Catherine A1 - Ringel, Christian A1 - Brüne, Bernhard A1 - Weigert, Andreas T1 - Beyond immune cell migration : the emerging role of the sphingosine-1-phosphate receptor S1PR4 as a modulator of innate immune cell activation T2 - Mediators of inflammation N2 - The sphingolipid sphingosine-1-phosphate (S1P) emerges as an important regulator of immunity, mainly by signaling through a family of five specific G protein-coupled receptors (S1PR1–5). While S1P signaling generally has the potential to affect not only trafficking but also differentiation, activation, and survival of a diverse range of immune cells, the specific outcome depends on the S1P receptor repertoire expressed on a given cell. Among the S1PRs, S1PR4 is specifically abundant in immune cells, suggesting a major role of the S1P/S1PR4 axis in immunity. Recent studies indeed highlight its role in activation of immune cells, differentiation, and, potentially, trafficking. In this review, we summarize the emerging data that support a major role of S1PR4 in modulating immunity in humans and mice and discuss therapeutic implications. Y1 - 2017 UR - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/46370 UR - https://nbn-resolving.org/urn:nbn:de:hebis:30:3-463702 SN - 1466-1861 SN - 0962-9351 N1 - Copyright © 2017 Catherine Olesch et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. VL - 26 IS - Art. 6059203 SP - 1 EP - 12 PB - Hindawi Publishing Corp. CY - Sylvania, Ohio ER -