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Over the past decades, a variety of MPN mouse models have been developed to express in HSC the main mutations identified in patients: JAK2V617F, CALRdel52 or ins5 and MPLW515L. These models mimic quite faithfully human PV or ET with their natural evolutions into MF and their hemostasis complications, demonstrating the driver function of these mutations in MPN. Here, we review these models and show how they have improved our general understanding of MPN regarding (1) the mechanisms of fibrosis, thrombosis/hemorrhages and disease initiation, (2) the roles of additional mutations and signaling pathways in disease progression and (3) the preclinical development of novel therapies. We also address controversial results between these models and remind how these models may differ from human MPN onset and also how basically mice are not humans, encouraging caution when one draw lessons from mice to humans. Furthermore, the contribution of germline genetic predisposition, HSC and niche aging, metabolic, oxidative, replicative or genotoxic stress, inflammation, immune escape and additional mutations need to be considered in further investigations to encompass the full complexity of human MPN in mice. Copyright © 2022 Elsevier Inc. All rights reserved.


Camelia Benlabiod, Tracy Dagher, Caroline Marty, Jean-Luc Villeval. Lessons from mouse models of MPN. International review of cell and molecular biology. 2022;366:125-185

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PMID: 35153003

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