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The common gamma c-cytokines and transplantation tolerance

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Vu M. D., Li X. C.

Archivum Immunologiae et Therapiae Experimentalis

2004

vol. 52

issue 4

267-273

Transplant rejection, like tolerance, is a T cell-dependent event. There is compelling evidence to suggest that induction of transplant tolerance is an actively learned process in which T cells need to engage the alloantigens in order to learn to tolerate the allograft. A family of cytokines whose receptors use the same IL-2 receptor gamma chain (also called the common gamma c) plays an important role in regulating multiple aspects of the allograft response (i.e. rejection vs. tolerance). It is undeniable that gamma c-cytokines can drive clonal expansion and effector maturation of alloreactive T cells, and therefore, targeting such cytokines or their receptor components remains an attractive way of blocking transplant rejection. However, we just started to appreciate that gamma c-cytokines also regulate the acquisition of transplant tolerance via programming activated T cells for apoptotic cell death and via guiding the evolution of regulatory T cells. Thus, understanding precisely the role of gamma c-cytokines in regulating T cell homeostasis and T cell regulation is critically important in the induction of transplant tolerance.

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1 Archivum Immunologiae et Therapiae Experimentalis

1 2004

1 Li X. C.

1 Vu M. D.

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The common gamma c-cytokines and transplantation tolerance