Differential MHC class II synthesis and ubiquitination confers distinct antigen-presenting properties on conventional and plasmacytoid dendritic cells
- Author(s)
- Young, LJ; Wilson, NS; Schnorrer, P; Proietto, A; ten Broeke, T; Matsuki, Y; Mount, AM; Belz, GT; O'Keeffe, M; Ohmura-Hoshino, M; Ishido, S; Stoorvogel, W; Heath, WR; Shortman, K; Villadangos, JA;
- Details
- Publication Year 2008-11,Volume 9,Issue #11,Page 1244-1252
- Journal Title
- NATURE IMMUNOLOGY
- Publication Type
- Journal Article
- Abstract
- The importance of conventional dendritic cells (cDCs) in the processing and presentation of antigen is well established, but the contribution of plasmacytoid dendritic cells (pDCs) to these processes, and hence to T cell immunity, remains unclear. Here we showed that unlike cDCs, pDCs continued to synthesize major histocompatibility complex (MHC) class II molecules and the MHC class II ubiquitin ligase MARCH1 long after activation. Sustained MHC class II-peptide complex formation, ubiquitination and turnover rendered pDCs inefficient in the presentation of exogenous antigens but enabled pDCs to continuously present endogenous viral antigens in their activated state. As the antigen-presenting abilities of cDCs and pDCs are fundamentally distinct, these two cell types may activate largely nonoverlapping repertoires of CD4(+) T cells.
- Publisher
- NATURE PUBLISHING GROUP
- Keywords
- IN-VIVO; T-CELLS; SURFACE EXPRESSION; IMMUNE-RESPONSES; INFLUENZA-VIRUS; CD8(+); ACTIVATION; MOUSE; IMMATURE; CD4(+)
- Publisher's Version
- https://doi.org/10.1038/ni.1665
- Terms of Use/Rights Notice
- Refer to copyright notice on published article.
Creation Date: 2008-11-01 12:00:00