The ins and outs of MHC class II-mediated antigen processing and presentation

Paul A. Roche, Kazuyuki Furuta

Research output: Contribution to journalReview article

257 Citations (Scopus)

Abstract

Antigenic peptide-loaded MHC class II molecules (peptide-MHC class II) are constitutively expressed on the surface of professional antigen-presenting cells (APCs), including dendritic cells, B cells, macrophages and thymic epithelial cells, and are presented to antigen-specific CD4 + T cells. The mechanisms of antigen uptake, the nature of the antigen processing compartments and the lifetime of cell surface peptide-MHC class II complexes can vary depending on the type of APC. It is likely that these differences are important for the function of each distinct APC subset in the generation of effective adaptive immune responses. In this Review, we describe our current knowledge of the mechanisms of uptake and processing of antigens, the intracellular formation of peptide-MHC class II complexes, the intracellular trafficking of peptide-MHC class II complexes to the APC plasma membrane and their ultimate degradation.

Original languageEnglish
Pages (from-to)203-216
Number of pages14
JournalNature Reviews Immunology
Volume15
Issue number4
DOIs
Publication statusPublished - Mar 25 2015

ASJC Scopus subject areas

  • Immunology and Allergy
  • Immunology

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