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Published in: Current Hematologic Malignancy Reports 6/2017

01-12-2017 | Myeloproliferative Neoplasms (B Stein, Section Editor)

Novel Therapies for Myelofibrosis

Authors: Kristen Pettit, Olatoyosi Odenike

Published in: Current Hematologic Malignancy Reports | Issue 6/2017

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Abstract

Purpose of Review

The purpose of the review was to provide a contemporary update of novel agents and targets under investigation in myelofibrosis in the Janus kinase (JAK) inhibitor era.

Recent Findings

Myelofibrosis (MF) is a clonal stem cell disease characterized by marrow fibrosis and a heterogeneous disease phenotype with a variable degree of splenomegaly, cytopenias, and constitutional symptoms that significantly impact quality of life and survival. Overactive JAK/STAT signaling is a hallmark of MF. The only approved therapy for MF, JAK1/2 inhibitor ruxolitinib, can ameliorate splenomegaly, improve symptoms, and prolong survival in some patients. Therapeutic challenges remain, however. Myelosuppression limits the use of ruxolitinib in some patients, eventual drug resistance is common, and the underlying malignant clone persists despite therapy. A deeper understanding of the pathogenesis of MF has informed the development of additional agents.

Summary

Promising targets under investigation include JAK1 and JAK2 and downstream intermediates in related signaling pathways, epigenetic modifiers, pro-inflammatory cytokines, and immune regulators.
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Metadata
Title
Novel Therapies for Myelofibrosis
Authors
Kristen Pettit
Olatoyosi Odenike
Publication date
01-12-2017
Publisher
Springer US
Published in
Current Hematologic Malignancy Reports / Issue 6/2017
Print ISSN: 1558-8211
Electronic ISSN: 1558-822X
DOI
https://doi.org/10.1007/s11899-017-0403-0

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