Quantifying epitope presentation using mass spectrometry
Date
2015
Authors
Croft, Nathan P
Purcell, Anthony
Tscharke, David
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Pergamon-Elsevier Ltd
Abstract
Understanding the absolute quantities of MHC-bound epitopes (pMHC) presented on the surface of cells has long been a critical missing element in our knowledge of antigen presentation to T cells. Until recently, attaining such information has been restricted to the use of pMHC complex-specific monoclonal antibodies or T cell assays probing fractionated peptides eluted from cells. Although successful in a variety of cases, such approaches are limited in their scope and feasibility due to the nature of the reagents they are reliant upon. Here we report on the advancement of targeted mass spectrometry techniques to provide simultaneous and direct measurements of the relative and absolute levels of pMHC molecules and its potential for impact upon the field of antigen processing and presentation.
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Source
Molecular Immunology
Type
Journal article
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2037-12-31