| http://dbpedia.org/ontology/abstract
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T-cell receptor revision (alternative term … T-cell receptor revision (alternative term: antigen receptor editing) is a process in the peripheral immune system which is used by mature T cells to alter their original antigenic specificity based on rearranged T cell receptors (TCR). This process can lead either to continuous appearance of potentially self-reactive T cells in the body, not controlled by the central tolerance mechanism in the thymus or better eliminate such self-reactive T cells on the other hand and thus contributing to peripheral tolerance - the extent of each has not been completely understood yet. This process occurs during follicular helper T cell formation in lymph node germinal centers. T cell revision is achieved via reactivation of recombination enzymes RAG1 and/or RAG2 after T cell activation in the periphery and random recombination of their CDR sequences. Post-revision peripheral T cell repertoire is strengthening all essential features of self-tolerant and self-MHC-restricted T cell repertoire generated in the thymus while keeping all its hallmarks - reactivity towards foreign antigens and homeostatic proliferation in response to self-MHC, so-called tonic signaling.se to self-MHC, so-called tonic signaling.
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11279
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| rdfs:comment |
T-cell receptor revision (alternative term … T-cell receptor revision (alternative term: antigen receptor editing) is a process in the peripheral immune system which is used by mature T cells to alter their original antigenic specificity based on rearranged T cell receptors (TCR). This process can lead either to continuous appearance of potentially self-reactive T cells in the body, not controlled by the central tolerance mechanism in the thymus or better eliminate such self-reactive T cells on the other hand and thus contributing to peripheral tolerance - the extent of each has not been completely understood yet. This process occurs during follicular helper T cell formation in lymph node germinal centers. formation in lymph node germinal centers.
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| rdfs:label |
T cell receptor revision
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