PMID- 19949081 OWN - NLM STAT- MEDLINE DCOM- 20100108 LR - 20171116 IS - 1550-6606 (Electronic) IS - 0022-1767 (Linking) VI - 184 IP - 1 DP - 2010 Jan 1 TI - Cutting edge: limited specialization of dendritic cell subsets for MHC class II-associated presentation of viral particles. PG - 26-9 LID - 10.4049/jimmunol.0901540 [doi] AB - Dendritic cells (DCs) are the most important APC. It was recently reported that there is a dichotomy for Ag presentation by DC subsets; exogenous Ags reach the MHC class I pathway, but not the MHC class II pathway, in CD8(+) DCs, whereas CD8(-) DCs only process Ags for the MHC class II pathway. In this study, we used virus-like particles (VLPs) to show that CD8(+) and CD8(-) DCs efficiently capture and process VLPs for presentation in association with MHC class II in vivo. In contrast, CD8(+) DCs, but not CD8(-) DCs, cross presented VLP-derived peptides. This pattern was changed in an FcgammaR-dependent fashion in the presence of VLP-specific Abs, because under those conditions both DC subsets failed to efficiently cross present. Thus, the presentation of viral particles to CD4(+) T cells is not restricted to distinct DC subsets, whereas the presentation of viral particles to CD8(+) T cells is limited to CD8(+) DCs. FAU - Keller, Susanne A AU - Keller SA AD - Cytos Biotechnology AG, Zurich-Schlieren, Switzerland. FAU - Bauer, Monika AU - Bauer M FAU - Manolova, Vania AU - Manolova V FAU - Muntwiler, Simone AU - Muntwiler S FAU - Saudan, Philippe AU - Saudan P FAU - Bachmann, Martin F AU - Bachmann MF LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20091130 PL - United States TA - J Immunol JT - Journal of immunology (Baltimore, Md. : 1950) JID - 2985117R RN - 0 (Antigens, Viral) RN - 0 (CD8 Antigens) RN - 0 (Histocompatibility Antigens Class II) SB - IM MH - Animals MH - Antigen Presentation/*immunology MH - Antigens, Viral/immunology MH - CD8 Antigens/immunology MH - Cross-Priming/immunology MH - Dendritic Cells/*immunology MH - Flow Cytometry MH - Histocompatibility Antigens Class II/*immunology MH - Mice MH - Mice, Inbred C57BL MH - Virion/*immunology EDAT- 2009/12/02 06:00 MHDA- 2010/01/09 06:00 CRDT- 2009/12/02 06:00 PHST- 2009/12/02 06:00 [entrez] PHST- 2009/12/02 06:00 [pubmed] PHST- 2010/01/09 06:00 [medline] AID - jimmunol.0901540 [pii] AID - 10.4049/jimmunol.0901540 [doi] PST - ppublish SO - J Immunol. 2010 Jan 1;184(1):26-9. doi: 10.4049/jimmunol.0901540. Epub 2009 Nov 30.