Table 1.

Role of NK cells in graft rejection by γ_c⁺ or by γ_c⁻ MI CD4⁺ T cells

	Donor T cells
Host	MIγc+Bcl-2+	MIγγc− Bcl-2+
NK+	Rejection	Acceptance
NK−	Rejection	Acceptance

Thymocytes from MI γ_c⁺ Bcl-2⁺ or MI γ_c⁻ Bcl-2⁺ mice were adoptively transferred to NK cell-competent (Rag2^−/−) or -deficient (Rag2^−/−γ_c^−/−) female hosts. One day later, male skin grafts were surgically placed. Graft acceptance or rejection was followed up to 120 days. Four recipient mice of each genotype were analyzed.