Asprin dosing strategy in low risk (young and JAK2 mutated without history of thrombosis) or very low risk (young JAK2 wild-type without history of thrombosis) essential thrombocythemia.
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http://dx.doi.org/10.1002/ajh.27369 | DOI Listing |
Cureus
December 2024
Radiodiagnosis, Malla Reddy Medical College for Women, Hyderabad, IND.
Myeloproliferative neoplasms (MPNs) are clonal hematopoietic stem cell disorders commonly characterized by excessive production of blood cell lineages. The JAK2 V617F mutation plays a crucial role in the pathogenesis of these conditions, often leading to thrombotic complications. Here, we present the case of a 21-year-old man who presented with acute abdominal pain and was found to have portal vein thrombosis with splenomegaly.
View Article and Find Full Text PDFAm J Hematol
January 2025
CRIMM, Center Research and Innovation of Myeloproliferative Neoplasms, University of Florence, AOU Careggi, Florence, Italy.
The clinical relevance of TP53 mutations (TP53) in myeloproliferative neoplasms (MPN) and their prognostic interaction with MPN subtype designation has not been systematically studied. In the current study, 114 patients with MPN harboring TP53 (VAF ≥ 2%) were evaluated for overall survival (OS), calculated from the time of TP53 detection: chronic phase myelofibrosis (MF-CP; N = 61); blast-phase (MPN-BP; N = 31) or accelerated-phase (MPN-AP; N = 16) MPN, and polycythemia vera/essential thrombocythemia (PV/ET; N = 6). Sixty-five (57%) patients harbored International Consensus Classification (ICC)-defined multihit TP53 and 56 (49%) monosomal/complex karyotype (MK/CK).
View Article and Find Full Text PDFJAMA
January 2025
CRIMM, Center Research and Innovation of Myeloproliferative Neoplasms, University of Florence, AOU Careggi, Florence, Italy.
Importance: Essential thrombocythemia, a clonal myeloproliferative neoplasm with excessive platelet production, is associated with an increased risk of thrombosis and bleeding. The annual incidence rate of essential thrombocythemia in the US is 1.5/100 000 persons.
View Article and Find Full Text PDFCancers (Basel)
January 2025
Department of Pathology, Dalhousie University, Halifax, NS B3H 1X5, Canada.
Calreticulin (CRT) is a 46 kDa highly conserved protein initially identified as calregulin, a prominent Ca-binding protein of the endoplasmic reticulum (ER). Subsequent studies have established that CRT functions in the ER's protein folding response and Ca homeostatic mechanisms. An ER retention signal on the carboxyl terminus of CRT suggested that CRT was restricted to the ER.
View Article and Find Full Text PDFAnn Hematol
January 2025
Department of Engineering for Innovation Medicine, Section of Innovation Biomedicine, Hematology Area, University of Verona, Verona, Italy.
Calreticulin (CALR) mutations are detected in around 20% of patients with primary and post-essential thrombocythemia myelofibrosis (MF). Regardless of driver mutations, patients with splenomegaly and symptoms are generally treated with JAK2-inhibitors, most commonly ruxolitinib. Recently, new therapies specifically targeting the CALR mutant clone have entered clinical investigation.
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