The present invention provides agents useful in the treatment of cancer, as well as systems for identifying and/or characterizing such agents, and systems for identifying and/or characterizing patient populations responsive to particular agents.Linvention concerne des agents utiles dans le traitement du cancer, ainsi que des systèmes permettant didentifier et/ou de caractériser de tels agents et des systèmes permettant didentifier et/ou de caractériser des populations de patients répondant à des agents particuliers.