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Keywords = chronic eosinophilic leukemia (CEL)

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22 pages, 364 KiB  
Review
Biological Markers of Myeloproliferative Neoplasms in Children, Adolescents and Young Adults
by Aleksandra Ozygała, Joanna Rokosz-Mierzwa, Paulina Widz, Paulina Skowera, Mateusz Wiliński, Borys Styka and Monika Lejman
Cancers 2024, 16(23), 4114; https://doi.org/10.3390/cancers16234114 - 8 Dec 2024
Viewed by 2324
Abstract
Myeloproliferative neoplasms (MPNs) are clonal hematopoietic cancers characterized by hyperproliferation of the myeloid lineages. These clonal marrow disorders are extremely rare in pediatric patients. MPN is reported to occur 100 times more frequently in adults, and thus research is primarily focused on this [...] Read more.
Myeloproliferative neoplasms (MPNs) are clonal hematopoietic cancers characterized by hyperproliferation of the myeloid lineages. These clonal marrow disorders are extremely rare in pediatric patients. MPN is reported to occur 100 times more frequently in adults, and thus research is primarily focused on this patient group. At present, modern diagnostic techniques, primarily genetic, facilitate the identification of the biology of these diseases. The key genes are JAK2, MPL, and CALR, namely, driver mutations, which are present in approximately 90% of patients with suspected MPN. Moreover, there are more than 20 other mutations that affect the development of these hematological malignancies, as evidenced by a review of the literature. The pathogenic mechanism of MPNs is characterized by the dysregulation of the JAK/STAT signaling pathway (JAK2, MPL, CALR), DNA methylation (TET2, DNMT3A, IDH1/2), chromatin structure (ASXL1, EZH2), and splicing (SF3B1, U2AF2, SRSF2). Although rare, myeloproliferative neoplasms can involve young patients and pose unique challenges for clinicians in diagnosis and therapy. The paper aims to review the biological markers of MPNs in pediatric populations—a particular group of patients that has been poorly studied due to the low frequency of MPN diagnosis. Full article
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