Deletion of potentially self-reactive T cell receptor specificities in L3T4-, Lyt-2- T cells of lpr mice [published erratum appears in J Exp Med 1989 Apr 1;169(4):1515-6]

doi:10.1084/jem.168.6.2221

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Deletion of potentially self-reactive T cell receptor specificities in L3T4-, Lyt-2- T cells of lpr mice [published erratum appears in J Exp Med 1989 Apr 1;169(4):1515-6]

BL Kotzin, SK Babcock and LR Herron
Department of Medicine, Veterans Administration Medical Center, Denver, Colorado.

The current study examines the possibility that the TCR repertoire of L3T4-, Lyt-2- cells in lpr/lpr mice is enriched for self-reactive specificities. T cells utilizing V beta 17a and V beta 8.1 gene products have been shown to be clonally eliminated in nonautoimmune mice expressing I-Ek and Mlsa/H-2k, respectively, because of their potential self reactivity. We quantitated these V beta specificities in lymph nodes and spleens of lpr/lpr mice. The results indicate that lpr- dependent L3T4-/Lyt-2- T cells, similar to normal peripheral T cells, have undergone a repertoire modification such that potential self- reactive V beta specificities have been eliminated. Evidence for tolerance in this population provides insight into the development of these aberrant cells, and may also have important implications for normal T cell development in the thymus.
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