Beyond JAK Inhibition: Molecular Pathogenesis and Novel Therapeutic Strategies for the Treatment of Myeloproliferative Neoplasms (MPNs)

A special issue of Cancers (ISSN 2072-6694). This special issue belongs to the section "Molecular Cancer Biology".

Deadline for manuscript submissions: 30 April 2024 | Viewed by 3187

Special Issue Editor


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Guest Editor
The Ben May Department for Cancer Research, The University of Chicago, Chicago, IL 60637, USA
Interests: myeloid malignancies; calreticulin; unfolded protein response; cancer cell metabolism; calcium signaling

Special Issue Information

Dear Colleagues,

The BCR/ABL-negative myeloproliferative neoplasms (MPNs), driven by mutations in JAK2, calreticulin (CALR), or the thrombopoietin receptor (MPL), are unified by the presence of constitutive JAK/STAT signaling. As such, JAK inhibitors have become an important therapeutic approach for treating MPN patients, particularly those with myelofibrosis for whom hematopoietic stem cell transplantation (HSCT) is not an option. However, although these agents impart profound clinical benefit, they are not curative and fail to alter disease progression.

Because of the shared presence of aberrant JAK/STAT signaling, MPN driver mutations have long been thought of as overlapping in their mechanisms of hematopoietic transformation. However, in recent years, evidence of their distinct molecular and cellular effects has begun to emerge. Understanding the mechanisms underlying the differential molecular pathogenesis of each MPN driver, and exploiting this knowledge to identify unique, targetable dependencies for each mutation, will help to move the needle towards the development of novel, highly specific and potentially curative treatment strategies for MPNs.

This Special Issue will highlight work that sheds light on the molecular mechanisms underlying the pathogenesis of mutant JAK2, CALR, and MPL-driven MPNs, and the targetable dependencies unique to each that may represent new therapeutic avenues. This work will provide invaluable insight into the future of MPN treatment, in which the elucidation of basic molecular mechanisms will give way to rationally designed therapies and precision medicine to cure patients without HSCT.

Dr. Shannon Elisabeth Elf
Guest Editor

Manuscript Submission Information

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Keywords

  • philadelphia-negative myeloproliferative neoplasms (MPNs) 
  • mechanisms of disease pathogenesis 
  • novel molecular dependencies 
  • molecular targeted therapies 
  • immunotherapies

Published Papers (1 paper)

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Research

15 pages, 3387 KiB  
Article
Metabolic Biomarkers Affecting Cell Proliferation and Prognosis in Polycythemia Vera
by Ziqing Wang, Yan Lv, Erpeng Yang, Yujin Li, Dehao Wang, Guang Hu, Yumeng Li, Mingjing Wang, Weiyi Liu, Mingqian Sun and Xiaomei Hu
Cancers 2022, 14(19), 4913; https://doi.org/10.3390/cancers14194913 - 07 Oct 2022
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Abstract
Polycythemia vera (PV) is a malignant clonal hematological disease of hematopoietic stem cells characterized by the proliferation of peripheral blood cells, and JAK2 mutation is one of the main causes of PV peripheral blood cell proliferation. Abnormal cell metabolism is a new feature [...] Read more.
Polycythemia vera (PV) is a malignant clonal hematological disease of hematopoietic stem cells characterized by the proliferation of peripheral blood cells, and JAK2 mutation is one of the main causes of PV peripheral blood cell proliferation. Abnormal cell metabolism is a new feature of malignant proliferation of tumor cells, but the role of metabolism in the pathogenesis and prognosis of PV remains unclear. We analyzed metabolic differences of peripheral blood sera between 32 PV patients and 20 healthy controls (HCs) by liquid chromatography–mass spectrometry (LC–MS) to investigate their relationship with cell proliferation and to screen for prognosis-related metabolic biomarkers. Compared to HC, 33 endogenous metabolites were significantly changed in PV and were involved in fatty acid metabolism, glucose metabolism, sphingolipid metabolism, and amino acid metabolism pathways. Among them, seven metabolites were closely associated with JAK2 mutations, 2 of which may contribute to the proliferation of peripheral blood cells in PV patients. A set of potential prognostic metabolic biomarkers containing four metabolites was identified by a receiver operating characteristic (ROC) curve according to the risk stratification of the PV patients and their combined AUC value of 0.952, with a sensitivity of 90.905% and specificity of 90.909% at the optimal cutoff point. Metabonomics is an important tool for the study of the pathogenesis of PV and the relationship between JAK2 gene mutation. Furthermore, the potential biomarkers of this study may provide a reference for the prognosis of PV. Full article
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