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Publication : Induction of acute myeloid leukemia in mice by the human leukemia-specific fusion gene NUP98-HOXD13 in concert with Meis1.

First Author  Pineault N Year  2003
Journal  Blood Volume  101
Issue  11 Pages  4529-38
PubMed ID  12543865 Mgi Jnum  J:83938
Mgi Id  MGI:2664428 Doi  10.1182/blood-2002-08-2484
Citation  Pineault N, et al. (2003) Induction of acute myeloid leukemia in mice by the human leukemia-specific fusion gene NUP98-HOXD13 in concert with Meis1. Blood 101(11):4529-38
abstractText  HOX genes, notably members of the HOXA cluster, and HOX cofactors have increasingly been linked to human leukemia. Intriguingly, HOXD13, a member of the HOXD cluster not normally expressed in hematopoietic cells, was recently identified as a partner of NUP98 in a t(2;11) translocation associated with t-AML/MDS. We have now tested directly the leukemogenic potential of the NUP98-HOXD13 t(2; 11) fusion gene in the murine hematopoietic model. NUP98-HOXD13 strongly promoted growth and impaired differentiation of early hematopoietic progenitor cells in vitro; this effect was dependent on the NUP98 portion and an intact HOXD13 homeodomain. Expression of the NUP98-HOXD13 fusion gene in vivo resulted in a partial impairment of lymphopoiesis but did not induce evident hematologic disease until late after transplantation (more than 5 months), when some mice developed a myeloproliferative-like disease. In contrast, mice transplanted with bone marrow (BM) cells cotransduced with NUP98-HOXD13 and the HOX cofactor Meis1 rapidly developed lethal and transplantable acute myeloid leukemia (AML), with a median disease onset of 75 days. In summary, this study demonstrates that NUP98-HOXD13 can be directly implicated in the molecular process leading to leukemic transformation, and it supports a model in which the transforming properties of NUP98-HOXD13 are mediated through HOX-dependent pathways.
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