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. 1993 May 1;177(5):1481–1485. doi: 10.1084/jem.177.5.1481

Bacterial superantigens mediate T cell deletions in the mouse severe combined immunodeficiency-human liver/thymus model

PMCID: PMC2190996  PMID: 8478618

Abstract

The ability to analyze T cell receptor (TCR) thymic repertoire shaping in humans by self and foreign ligands is hampered by the lack of suitable models. We recently documented that the mouse severe combined immunodeficiency (SCID)-human fetal liver/thymus model recapitulates the TCR V beta gene repertoire of human thymocytes. Here, we show that an exogenous superantigen, staphylococcal enterotoxin B, administered to such mice induces clonal deletions in both CD4+8- and CD8+4- cells involving the same human V beta clones that are selected in vitro by this toxin. This model, therefore, may allow comprehensive studies into the effects of microbial and other agents on human T cell thymic selection processes in a biologically relevant setting.

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Selected References

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