Therapeutic agents for the treatment of leukemia
The invention provides for methods of treating a mammal who has a BCR/ABL-mediated leukemia, including chronic myelogenous leukemia (CML), particularly the blast crisis stage of CML, Philadelphia-positive acute lymphoblastic leukemia (Ph′-ALL), and refractory leukemias. The invention also provides for compounds for the treatment of these leukemias and methods of identifying anti-leukemic agents.
1. A method for treating a BCR/ABL-mediated leukemia in a mammal consisting of administering to said mammal a therapeutically effective amount of a PP2A activating compound selected from the group consisting of protamine sulfate; rolipram; butyryl-forskolin; 1,9-dideoxy-forskolin; and FTY720; wherein the PP2A activating compound is optionally administered with a pharmaceutically acceptable carrier.
2. The method of claim 1 , wherein the BCR/ABL-mediated leukemia is chronic myelogenous leukemia or Philadelphia positive acute lymphoblastic leukemia.
3. The method of claim 1 , wherein the mammal is in the blast crisis stage of chronic myelogenous leukemia.
4. The method of claim 1 , wherein the mammal is resistant to imatinib therapy.
5. The method of claim 1 , wherein the mammal has refractory leukemia.