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Myelofibrosis: clinicopathologic features, prognosis, and management
Jennifer M O'Sullivan1, Claire N Harrison1
1Guy's and St Thomas' NHS Foundation Trust, London, United Kingdom.
Clinical Advances in Hematology & Oncology : H&O
|May 10, 2018
Summary
Myelofibrosis, a myeloproliferative neoplasm, involves clonal hematopoietic stem cell proliferation. While JAK inhibitors like ruxolitinib manage symptoms, stem cell transplant remains the only cure for this MPN.
Area of Science:
- Hematology
- Oncology
- Molecular Biology
Background:
- Myelofibrosis is a BCR-ABL-negative myeloproliferative neoplasm (MPN) driven by clonal hematopoietic stem cell proliferation.
- Clinical presentation is heterogeneous, necessitating risk stratification for effective management.
- Key driver mutations include JAK2 V617F, CALR, and MPL.
Purpose of the Study:
- To review the clinical features, pathogenesis, risk stratification, and management of myelofibrosis.
- To discuss current and emerging targeted therapies for myelofibrosis.
- To highlight the role of JAK inhibitors and the curative potential of stem cell transplantation.
Main Methods:
- Review of current literature on myelofibrosis.
- Analysis of advancements in understanding MPN pathogenesis.
- Evaluation of therapeutic strategies, including JAK inhibitors and stem cell transplantation.
Main Results:
- Ruxolitinib, a JAK1/JAK2 inhibitor, improves symptoms and survival but lacks disease-altering effects.
- Allogeneic hematopoietic stem cell transplant is the only curative treatment for myelofibrosis.
- Newer JAK inhibitors and non-JAK targeted therapies are under investigation.
Conclusions:
- Myelofibrosis management requires careful risk stratification and tailored therapeutic approaches.
- Targeted therapies have advanced treatment, but stem cell transplant remains the definitive cure.
- Ongoing research focuses on novel agents and combination therapies to overcome current treatment limitations.
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