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Research Article: Downregulated PTEN and aberrant JAK–STAT signal pathway in essential thrombocythemia patients

Date Published: 2025-05-23

Abstract:
Background: Essential thrombocythemia (ET) is one of the Philadelphia-negative (Ph?) classical myeloproliferative neoplasms (MPNs), characterized by increased megakaryocyte and platelet counts, as well as an increased risk of thrombo-hemorrhagic complications. The JAK2 V617F mutation is detected in 50%–60% of patients with ET and can drive ET occurrence through ligand-independent activation of the thrombopoietin (TPO) receptor, resulting in JAK/STAT pathway signaling. Phosphatase and tensin homolog (PTEN) has been found to be associated with many hematologic diseases, particularly in MPNs, and is involved in the JAK/STAT pathway. This study aimed to determine the role of PTEN in ET patients with the JAK2 V617F mutation.

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