| Autor: |
Dieke van Dinther, Henrike Veninga, Salvador Iborra, Ellen G.F. Borg, Leoni Hoogterp, Katarzyna Olesek, Marieke R. Beijer, Sjoerd T.T. Schetters, Hakan Kalay, Juan J. Garcia-Vallejo, Kees L. Franken, Lamin B. Cham, Karl S. Lang, Yvette van Kooyk, David Sancho, Paul R. Crocker, Joke M.M. den Haan |
| Jazyk: |
angličtina |
| Rok vydání: |
2018 |
| Předmět: |
|
| Zdroj: |
Cell Reports, Vol 22, Iss 6, Pp 1484-1495 (2018) |
| Druh dokumentu: |
article |
| ISSN: |
2211-1247 |
| DOI: |
10.1016/j.celrep.2018.01.021 |
| Popis: |
Summary: Splenic CD169+ macrophages are located in the marginal zone to efficiently capture blood-borne pathogens. Here, we investigate the requirements for the induction of CD8+ T cell responses by antigens (Ags) bound by CD169+ macrophages. Upon Ag targeting to CD169+ macrophages, we show that BATF3-dependent CD8α+ dendritic cells (DCs) are crucial for DNGR-1-mediated cross-priming of CD8+ T cell responses. In addition, we demonstrate that CD169, a sialic acid binding lectin involved in cell-cell contact, preferentially binds to CD8α+ DCs and that Ag transfer to CD8α+ DCs and subsequent T cell activation is dependent on the sialic acid-binding capacity of CD169. Finally, functional CD169 mediates optimal CD8+ T cell responses to modified vaccinia Ankara virus infection. Together, these data indicate that the collaboration of CD169+ macrophages and CD8α+ DCs for the initiation of effective CD8+ T cell responses is facilitated by binding of CD169 to sialic acid containing ligands on CD8α+ DCs. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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