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Foreignness as a matter of degree: the relative immunogenicity of peptide/MHC ligands
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UNSPECIFIED (2004) Foreignness as a matter of degree: the relative immunogenicity of peptide/MHC ligands. JOURNAL OF THEORETICAL BIOLOGY, 231 (4). pp. 535-548. doi:10.1016/j.jtbi.2004.07.008 ISSN 0022-5193.
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Official URL: http://dx.doi.org/10.1016/j.jtbi.2004.07.008
Abstract
The ability of T lymphocytes (T cells) to recognize and attack foreign invaders while leaving healthy cells unharmed is often analysed as a discrete self/non-self dichotomy, with each peptide/MHC ligand classified as either self or non-self. We argue that the ligand immunogenicity is more naturally treated as a continuous quantity, and show how to define and quantitate relative ligand immunogenicity. In our theory, self-tolerance is acquired through reduction of the relative immunogenicity of autoantigens, whereas xenoantigens, typically not presented during induction of deletional tolerance, retain a high degree of relative immunogenicity. Autoantigens that are not prominently presented in deletional tolerance likewise retain a high relative immunogenicity and remain essentially foreign. According to our analysis, any given autoantigen can attain a high level of relative immunogenicity, provided it is presented at sufficiently high levels. Our theory provides a quantitative tool to analyse the immunogenicity of tumour-associated neoantigens and the aetiology of autoimmune disease. (C) 2004 Elsevier Ltd. All rights reserved.
Item Type: | Journal Article | ||||
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Subjects: | Q Science > QH Natural history > QH301 Biology | ||||
Journal or Publication Title: | JOURNAL OF THEORETICAL BIOLOGY | ||||
Publisher: | ACADEMIC PRESS LTD ELSEVIER SCIENCE LTD | ||||
ISSN: | 0022-5193 | ||||
Official Date: | 21 December 2004 | ||||
Dates: |
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Volume: | 231 | ||||
Number: | 4 | ||||
Number of Pages: | 14 | ||||
Page Range: | pp. 535-548 | ||||
DOI: | 10.1016/j.jtbi.2004.07.008 | ||||
Publication Status: | Published |
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