Differentiation Therapy of Acute Myeloid Leukaemia: Combining RAR-agonists and G-CSF.

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The application of cancer treatments that target specific molecules hold significant promise. However to apply these treatments detailed knowledge is required of the how the molecular targets function in cells. Our previous work using normal blood cells has identified two genes ( MAD1 and p27KIP1 ) that are required for the effects of one such targeted treatment that is aimed at the retinoic acid receptor alpha. We propose to test this treatment in mouse models of human leukaemia and in human leukemia cells grown in the laboratory. By deleting the genes for MAD1 and p27KIP1 we will determine if leukaemias lacking these genes fail to respond to treatments targeting the retinoic acid receptor alpha. We will also test if treatments that target retinoic acid receptors in combination with G-CSF, a protein that has previously been demonstrated to have anti-leukaemic activity, can work together to block growth of leukaemic and genetically modified cells. Together these studies will help define classes of leukamias that either will or will not respond to treatments aimed at retinoic acid receptor to better target future leukemia treatments.