<prompt> Which of the following immunosuppressants is not used for the treatment of cancers?CyclophosphamideCyclosporineMethotrexate6-Mercaptopurine  <response>: Ref: KDT 6e p839, 840 All antimetabolites can be used as anticancer drugs except azathioprine. Cyclosporine acts by inhibiting the transcription of IL-2 gene. It has no anti-cancer propey. 