• Leukemia research · Apr 2013

    Review

    The role of Janus kinase 2 (JAK2) in myeloproliferative neoplasms: therapeutic implications.

    • Alfonso Quintás-Cardama.
    • Department of Leukemia, Division of Cancer Medicine, MD Anderson Cancer Center, Houston, TX 77030, USA. aquintas@mdanderson.org
    • Leuk. Res. 2013 Apr 1; 37 (4): 465-72.

    AbstractThe acquired recurrent mutation, JAK2 V617F, is the most frequent mutation associated with myeloproliferative neoplasms (MPNs). JAK2 signaling is critical in normal hematopoiesis. Studies using genetically engineered mouse models demonstrated a central role of JAK2 V617F in the pathogenesis of MPNs. Data in animal models showed that JAK2 inhibitors target JAK2 V617F kinase and decrease disease burden. Clinical trials demonstrated that JAK1/2 inhibitors ameliorate constitutional symptoms and reduce spleen size in patients with myelofibrosis. However, JAK2 inhibitors have limited ability to reduce JAK2 V617F allele burden or bone marrow fibrosis in humans. JAK2 inhibitor-based combination therapies are being explored.Copyright © 2012 Elsevier Ltd. All rights reserved.

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