Selective survival of naturally occurring human CD4+CD25+Foxp3+ regulatory T cells cultured with rapamycin.

Abstract excerpt

Naturally occurring CD4(+)CD25(+) regulatory T (nTreg) cells are essential for maintaining T cell tolerance to self Ags. We show that discrimination of human Treg from effector CD4(+)CD25(+) non-nTreg cells and their selective survival and proliferation can now be achieved using rapamycin (sirolimus). Human purified CD4(+)CD25(high) T cell subsets stimulated via TCR and CD28 or by IL-2 survived and expanded up to...

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