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PML-RAR  co-operates with Sox4 in acute myeloid leukemia development in mice

Omidvar, Nader, Maunakea, M. L., Jones, L., Sevcikova, S., Yin, B., Himmel, K. L., Tennant, T. R., Le Beau, M. M., Largaespada, D. A. and Kogan, S. C. 2013. PML-RAR  co-operates with Sox4 in acute myeloid leukemia development in mice. Haematologica 98 (3) , pp. 424-427. 10.3324/haematol.2011.057067

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Acute promyelocytic leukemia is characterized by a chromosomal translocation involving the retinoic acid receptor alpha gene. To identify co-operating pathways to leukemogenesis, we crossed MRP8-PML/RARA transgenic mice with BXH-2 mice which harbor an endogenous murine leukemia virus that causes acute myeloid leukemia. Approximately half of the leukemias that arose in this cross showed features of acute promyelocytic leukemia. We identified 22 proviral insertion sites in acute promyelocytic-like leukemias and focused our analysis on insertion at Sox4, a HMG box transcription factor. Using a transplant model, co-operation between PML-RARα and Sox4 was confirmed with increased penetrance and reduced latency of disease. Interestingly, karyotypic analysis revealed cytogenetic changes suggesting that the factors combined to initiate but not complete leukemic transformation. The cooperation between these transcription factors is consistent with the paradigm of multiple routes to the disease and reinforces the concept that transcription factor networks are important therapeutic targets in myeloid leukemias. © 2013 Ferrata Storti Foundation.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Medicine
Subjects: R Medicine > R Medicine (General)
Publisher: Ferrata Storti Foundation
ISSN: 0390-6078
Last Modified: 04 Jun 2017 09:29

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