The exogenous pathway for antigen presentation on major histocompatibility complex class II and CD1 molecules

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    Abstract

    The endosomes and lysosomes of antigen-presenting cells host the processing and assembly reactions that result in the display of peptides on major histocompatibility complex (MHC) class II molecules and lipid-linked products on CD1 molecules. This environment is potentially hostile for T cell epitope and MHC class II survival, and the influence of regulators of protease activity and specialized chaperones that assist MHC class II assembly is crucial. At present, evidence indicates that individual proteases make both constructive and destructive contributions to antigen processing for MHC class II presentation to CD4 T cells. Some features of CD1 antigen capture within the endocytic pathway are also discussed.

    Original languageEnglish
    Pages (from-to)685-692
    Number of pages8
    JournalNature Immunology
    Volume5
    Issue number7
    DOIs
    Publication statusPublished - Jul 2004

    Keywords

    • INVARIANT CHAIN
    • MHC CLASS-II
    • HLA-DM
    • CATHEPSIN-S
    • LYSOSOMAL THIOL REDUCTASE
    • DISULFIDE BONDS
    • DENDRITIC CELLS
    • IN-VIVO
    • ASPARAGINYL ENDOPEPTIDASE
    • T-CELL SELECTION

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