Cutting Edge: Intravenous Soluble Antigen Is Presented to CD4 T Cells by CD8− Dendritic Cells, but Cross-Presented to CD8 T Cells by CD8+ Dendritic Cells
Author(s) -
Joanne Pooley,
William R. Heath,
Ken Shortman
Publication year - 2001
Publication title -
the journal of immunology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.737
H-Index - 372
eISSN - 1550-6606
pISSN - 0022-1767
DOI - 10.4049/jimmunol.166.9.5327
Subject(s) - cytotoxic t cell , mhc class i , cd8 , cross presentation , antigen presentation , dendritic cell , antigen presenting cell , cd1 , biology , spleen , mhc class ii , microbiology and biotechnology , antigen , immunology , major histocompatibility complex , chemistry , interleukin 21 , in vitro , biochemistry
Mouse spleen contains three distinct mature dendritic cell (DC) populations (CD4(+)8(-), CD4(-)8(-), and CD4(-)8(+)) which retain a capacity to take up particulate and soluble AGS: Although the three splenic DC subtypes showed similar uptake of injected soluble OVA, they differed markedly in their capacity to present this Ag and activate proliferation in OVA-specific CD4 or CD8 T cells. For class II MHC-restricted presentation to CD4 T cells, the CD8(-) DC subtypes were more efficient, but for class I MHC-restricted presentation to CD8 T cells, the CD8(+) DC subtype was far more effective. This differential persisted when the DC were activated with LPS. The CD8(+) DC are therefore specialized for in vivo cross-presentation of exogenous soluble Ags into the class I MHC presentation pathway.
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