Murine Models of Myelofibrosis
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Updated: Dec 11, 2025
Author Spotlight: Analyzing Bone Marrow Microenvironment in Murine Hematological Malignancies
Published on: November 10, 2023
Sebastien Jacquelin1, Frederike Kramer2, Ann Mullally2
1Cancer program QIMR Berghofer Medical Research Institute, Brisbane, Queensland 4006, Australia.
Abstract:
Myelofibrosis (MF) is subtype of myeloproliferative neoplasm (MPN) characterized by a relatively poor prognosis in patients. Understanding the factors that drive MF pathogenesis is crucial to identifying novel therapeutic approaches with the potential to improve patient care. Driver mutations in three main genes (janus kinase 2 (JAK2), calreticulin (CALR), and myeloproliferative leukemia virus oncogene (MPL)) are recurrently mutated in MPN and are sufficient to engender MPN using animal models. Interestingly, animal studies have shown that the underlying molecular mutation and the acquisition of additional genetic lesions is associated with MF outcome and transition from early stage MPN such as essential thrombocythemia (ET) and polycythemia vera (PV) to secondary MF. In this issue, we review murine models that have contributed to a better characterization of MF pathobiology and identification of new therapeutic opportunities in MPN.
Insights
Myelofibrosis (MF) is a serious myeloproliferative neoplasm (MPN). Murine models reveal how genetic mutations drive MF and its progression, guiding new therapeutic strategies for better patient outcomes.
Area of Science:
- Hematology
- Oncology
- Genetics
Background:
- Myelofibrosis (MF) is a myeloproliferative neoplasm (MPN) with a poor prognosis.
- Understanding MF pathogenesis is key to developing new therapies.
- Driver mutations (JAK2, CALR, MPL) are central to MPN development.
Purpose of the Study:
- To review murine models of MF.
- To explore how these models advance understanding of MF pathobiology.
- To identify novel therapeutic opportunities in MPN.
Main Methods:
- Review of existing literature on murine models of MF.
- Analysis of genetic lesions and their impact on MF outcome.
- Examination of disease progression from ET/PV to secondary MF.
Main Results:
- Murine models have significantly improved the characterization of MF pathobiology.
- Genetic mutations and additional lesions correlate with MF prognosis.
- These models facilitate the identification of therapeutic targets.
Conclusions:
- Murine models are invaluable tools for studying MF.
- Insights from these models can lead to improved treatments for MPN patients.
- Further research using animal models holds promise for advancing MF therapy.
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