Proteases: essential actors in processing antigens and intracellular Toll-like receptors

MHC class II molecules expressed by professional antigen presenting cells (pAPCs) such as macrophages, B cells and dendritic cells (DCs) play a fundamental role in presenting peptides to CD4+ T cells. However, to elicit CD4+-T cells immunity, pAPCs need an additional signal, which can be delivered b...

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Main Author: Bénédicte eManoury
Format: Article
Language:English
Published: Frontiers Media S.A. 2013-09-01
Series:Frontiers in Immunology
Subjects:
Online Access:http://journal.frontiersin.org/Journal/10.3389/fimmu.2013.00299/full
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author Bénédicte eManoury
author_facet Bénédicte eManoury
author_sort Bénédicte eManoury
collection DOAJ
description MHC class II molecules expressed by professional antigen presenting cells (pAPCs) such as macrophages, B cells and dendritic cells (DCs) play a fundamental role in presenting peptides to CD4+ T cells. However, to elicit CD4+-T cells immunity, pAPCs need an additional signal, which can be delivered by Toll-like receptors (TLRs) molecules. TLRs recognize microbial patterns and are critical in initiating immune responses. Proteases, which provide peptide ligands for the MHC class II antigenic presentation pathway, were recently shown to cleave and activate intracellular Toll-like receptors in endosomal compartments. Here, I give an overview on the individual roles of the most well studied proteases in both antigen and TLRs processing.
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spelling doaj.art-2e77f79534a74676a399d84ab4fd42232022-12-22T03:44:44ZengFrontiers Media S.A.Frontiers in Immunology1664-32242013-09-01410.3389/fimmu.2013.0029964675Proteases: essential actors in processing antigens and intracellular Toll-like receptorsBénédicte eManoury0INSERM U1013, Université Paris Descartes, Sorbonne Paris Cité,MHC class II molecules expressed by professional antigen presenting cells (pAPCs) such as macrophages, B cells and dendritic cells (DCs) play a fundamental role in presenting peptides to CD4+ T cells. However, to elicit CD4+-T cells immunity, pAPCs need an additional signal, which can be delivered by Toll-like receptors (TLRs) molecules. TLRs recognize microbial patterns and are critical in initiating immune responses. Proteases, which provide peptide ligands for the MHC class II antigenic presentation pathway, were recently shown to cleave and activate intracellular Toll-like receptors in endosomal compartments. Here, I give an overview on the individual roles of the most well studied proteases in both antigen and TLRs processing.http://journal.frontiersin.org/Journal/10.3389/fimmu.2013.00299/fullDendritic Cellsprocessingantigen processingProteasesMHC class IIinvariant chain
spellingShingle Bénédicte eManoury
Proteases: essential actors in processing antigens and intracellular Toll-like receptors
Frontiers in Immunology
Dendritic Cells
processing
antigen processing
Proteases
MHC class II
invariant chain
title Proteases: essential actors in processing antigens and intracellular Toll-like receptors
title_full Proteases: essential actors in processing antigens and intracellular Toll-like receptors
title_fullStr Proteases: essential actors in processing antigens and intracellular Toll-like receptors
title_full_unstemmed Proteases: essential actors in processing antigens and intracellular Toll-like receptors
title_short Proteases: essential actors in processing antigens and intracellular Toll-like receptors
title_sort proteases essential actors in processing antigens and intracellular toll like receptors
topic Dendritic Cells
processing
antigen processing
Proteases
MHC class II
invariant chain
url http://journal.frontiersin.org/Journal/10.3389/fimmu.2013.00299/full
work_keys_str_mv AT benedicteemanoury proteasesessentialactorsinprocessingantigensandintracellulartolllikereceptors