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Updated: Feb 15, 2026

A Method for Screening and Validation of Resistant Mutations Against Kinase Inhibitors
Published on: December 7, 2014
[Research Progress on Effect of JAK Inhibitors on Myelofibrosis- Review]
Jun-Xiu Liu1, Wei Chen1, Kai-Lin Xu1
1Department of Hematology, The Affiliated Hospital of Xuzhou Medical University, Xuzhou 221002, Jiangsu Province, China.
Abstract:
Myelofibrosis(MF) is a type of myeloprolifirative neoplasms which is difficult to be treated. With the discovery of V617F mutation site in Janus kinase 2 (JAK2), JAK inhibitor provides a new treatment strategy for patients with myelofibrosis. Since 2011 the FDA in USA approved the first generation of JAK inhibitor Ruxolitinib for marketing, a growing number of JAK inhibitors have been entering into the clinical trials and showed a certain clinical efficacy. On the one hand, some JAK inhibitors for single application can effectively relieve the clinical symptoms of patients with myelofibrosis, slow down disease progression, and prolong the survival; on the other hand, JAK inhibitor can also be applied in combination with traditional or other new targeted drugs for MF patients, even during the allogenetic hematopoietic stem cell transplantation, thus providing more choices for targeted therapy on the patients with myelofibrosis. This review focuses mainly on the latest advances of JAK inhibitors for the patients with myelofibrosis.
Insights
Janus kinase (JAK) inhibitors offer a new treatment strategy for myelofibrosis, a challenging myeloproliferative neoplasm. These targeted therapies show efficacy in single or combination applications, improving patient outcomes.
Area of Science:
- Hematology
- Oncology
- Pharmacology
Background:
- Myelofibrosis (MF) is a complex myeloproliferative neoplasm with limited treatment options.
- The identification of the Janus kinase 2 (JAK2) V617F mutation paved the way for targeted therapies.
- JAK inhibitors represent a significant advancement in managing myelofibrosis.
Purpose of the Study:
- To review the latest advancements in Janus kinase (JAK) inhibitors for myelofibrosis treatment.
- To highlight the efficacy and applications of JAK inhibitors in clinical settings.
- To discuss the role of JAK inhibitors in monotherapy, combination therapy, and during stem cell transplantation.
Main Methods:
- Review of recent clinical trials and research on JAK inhibitors for myelofibrosis.
- Analysis of data regarding the efficacy of JAK inhibitors in symptom relief and disease progression.
- Exploration of combination strategies involving JAK inhibitors and other therapeutic agents.
Main Results:
- JAK inhibitors have demonstrated significant clinical efficacy in treating myelofibrosis.
- Single-agent JAK inhibitors can alleviate symptoms, slow disease progression, and improve survival.
- Combination therapies utilizing JAK inhibitors offer expanded treatment choices, including during allogeneic hematopoietic stem cell transplantation.
Conclusions:
- Janus kinase (JAK) inhibitors are a crucial therapeutic class for myelofibrosis patients.
- These targeted agents provide effective options for symptom management and disease control.
- The versatility of JAK inhibitors allows for diverse treatment strategies, enhancing patient care.
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