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Receptor editing in lymphocyte development and central tolerance
Author(s): Nemazee D (Nemazee, David)
Source: NATURE REVIEWS IMMUNOLOGY    Volume: 6    Issue: 10    Pages: 728-740    Published: OCT 2006  
Times Cited: 47     References: 137     
Abstract: The specificities of lymphocytes for antigen are generated by a quasi-random process of gene rearrangement that often results in non-functional or autoreactive antigen receptors. Regulation of lymphocyte specificities involves not only the elimination of cells that display 'unsuitable' receptors for antigen but also the active genetic correction of these receptors by secondary recombination of the DNA. As I discuss here, an important mechanism for the genetic correction of antigen receptors is ongoing recombination, which leads to receptor editing. Receptor editing is probably an adaptation that is necessitated by the high probability of receptor autoreactivity. In both B cells and T cells, the genes that encode the two chains of the antigen receptor seem to be specialized to promote, on the one hand, the generation of diverse specificities and, on the other hand, the regulation of these specificities through efficient editing.
Document Type: Review
Language: English
Reprint Address: Nemazee, D (reprint author), Scripps Res Inst, Dept Immunol, Mail Drop IMM-29,10550 N Torrey Pines Rd, La Jolla, CA 92037 USA
Addresses:
1. Scripps Res Inst, Dept Immunol, La Jolla, CA 92037 USA
Publisher: NATURE PUBLISHING GROUP, MACMILLAN BUILDING, 4 CRINAN ST, LONDON N1 9XW, ENGLAND
Subject Category: Immunology
IDS Number: 094PN
ISSN: 1474-1733
DOI: 10.1038/nri1939
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