That the signal transduction pathways used by the cytokines IL-2 and IL-15 are identical would suggest that these cytokines have redundant roles in lymphoid development ; instead , IL-2 is the guardian of thymus-derived T-cell homeostasis , while interleukin-15 promotes extrathymic development of T and NK cells .
that the signal transduction pathways used by the cytokines il-2 and il-15 are identical would suggest that these cytokines have redundant roles in lymphoid development ; instead , il-2 is the guardian of thymus-derived t-cell homeostasis , while interleukin-15 promotes extrathymic development of t and nk cells .
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