Results 1 to 10 of about 703,883 (163)

The Small GTPase Rab7 Regulates Antigen Processing in B Cells in a Possible Interplay with Autophagy Machinery [PDF]

open access: yesCells, 2023
In B cells, antigen processing and peptide-antigen (pAg) presentation is essential to ignite high-affinity antibody responses with the help of cognate T cells.
Marika Runsala   +7 more
doaj   +2 more sources

Rewiring tumor visibility: The immunopeptidome as a dynamic interface between antigen processing, microenvironmental stress, and immune recognition [PDF]

open access: yesFrontiers in Oncology
The tumor immunopeptidome dictates whether malignant cells remain visible or invisible to immune surveillance, yet its regulation extends far beyond canonical antigen processing. Here, we synthesize recent insights into how proteasomes, immunoproteasomes,
Kangkang Zhao   +5 more
doaj   +2 more sources

Lysosomal checkpoints in renal autoimmunity: from antigen processing to metabolic-immune crosstalk [PDF]

open access: yesFrontiers in Immunology
Lysosomes serve as critical intracellular hubs for degradation and signaling, playing a central role in maintaining immune homeostasis. In recent years, lysosomal functions have been conceptualized as a series of “checkpoints” that finely regulate the ...
Zhengjing Fu, Xiang Xu
doaj   +2 more sources

The ATG8 Family Proteins GABARAP and GABARAPL1 Target Antigen to Dendritic Cells to Prime CD4+ and CD8+ T Cells

open access: yesCells, 2022
Vaccine therapy is a promising method of research to promote T cell immune response and to develop novel antitumor immunotherapy protocols. Accumulating evidence has shown that autophagy is involved in antigen processing and presentation to T cells.
Leïla Fonderflick   +5 more
doaj   +1 more source

Molecular tracking devices quantify antigen distribution and archiving in the murine lymph node

open access: yeseLife, 2021
The detection of foreign antigens in vivo has relied on fluorescent conjugation or indirect read-outs such as antigen presentation. In our studies, we found that these widely used techniques had several technical limitations that have precluded a ...
Shannon M Walsh   +9 more
doaj   +1 more source

The ER folding sensor UGGT1 acts on TAPBPR-chaperoned peptide-free MHC I

open access: yeseLife, 2023
Adaptive immune responses are triggered by antigenic peptides presented on major histocompatibility complex class I (MHC I) at the surface of pathogen-infected or cancerous cells.
Lina Sagert   +5 more
doaj   +1 more source

Interferon-gamma-activated macrophages infected with Burkholderia cenocepacia process and present bacterial antigens to T-cells by class I and II major histocompatibility complex molecules

open access: yesEmerging Microbes and Infections, 2020
Burkholderia cenocepacia is an emerging opportunistic pathogen for people with cystic fibrosis and chronic granulomatous disease. Intracellular survival in macrophages within a membrane-bound vacuole (BcCV) that delays acidification and maturation into ...
Roberto Rosales-Reyes   +10 more
doaj   +1 more source

Pathways of Antigen Processing [PDF]

open access: yesAnnual Review of Immunology, 2013
T cell recognition of antigen-presenting cells depends on their expression of a spectrum of peptides bound to major histocompatibility complex class I (MHC-I) and class II (MHC-II) molecules. Conversion of antigens from pathogens or transformed cells into MHC-I- and MHC-II-bound peptides is critical for mounting protective T cell responses, and similar
Janice S, Blum   +2 more
openaire   +2 more sources

The yin/yang balance of the MHC-self-immunopeptidome

open access: yesFrontiers in Immunology, 2022
The MHC-self immunopeptidome of professional antigen presenting cells is a cognate ligand for the TCRs expressed on both conventional and thymic-derived natural regulatory T cells.
Laura Santambrogio, Alessandra Franco
doaj   +1 more source

The role of insulin-regulated aminopeptidase in MHC class I antigen presentation

open access: yesFrontiers in Immunology, 2012
Production of MHC I ligands from antigenic proteins generally requires multiple proteolytic events. While the proteolytic steps required for antigen processing in the endogenous pathway are clearly established, persisting gaps of knowledge regarding ...
Peter M Van Endert, Loredana eSaveanu
doaj   +1 more source

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