Interestingly, the alteration of osteoblastic cells by activation of the PTH receptor in BCR-ABL induced mouse model of chronic myeloid leukemia (CML), decreases CML disease but enhances MLL-AF9 induced AML development, demonstrating that distinct myeloid disease required different niches factors [61]. This evidence concerns the gene MLLT3 and chronic myelogenous leukemia, BCR-ABL1 positive.