In vitro melanoma—B16F10 lung—TC-1, lymphoma—YAC-1, thymoma—EG7In vivo: C57BL/6, Ly5.1þ & IFNAR1–/– mice, LCMV-clone 13 (Cl13),: IP or IV, anti-CD4. The gene discussed is IFNAR1; the disease is melanoma.