Negative selection, not receptor editing, is a physiological response of autoreactive thymocytes.

Abstract excerpt

Antigen receptor editing-a process of secondary rearrangements of antigen receptor genes in autoreactive lymphocytes-is a well-established tolerance mechanism in B cells, whereas its role in T cells remains controversial. Here, we investigated this issue using a novel Tcra knock-in locus, which ensured appropriate timing of TCRα expression and allowed secondary rearrangements. Under these conditions the only...

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