An agent that activates natural killer cells and is useful in renal cell carcinoma is:: (A) Aldesleukin, (B) Etanercept, (C) Leflunomide, (D) Thalidomide
Answer is A. (Ref: Katzung 10/e p906) Recombinant IL-2 (aldesleukin) is used for the treatment of malignatn melanoma and renal cell carcinoma.