期刊
FRONTIERS IN ONCOLOGY
卷 12, 期 -, 页码 -出版社
FRONTIERS MEDIA SA
DOI: 10.3389/fonc.2022.937362
关键词
polycythemia vera; essential thrombocythemia; myeloproliferative neoplasm; JAK2 L611S; V617L mutation; CSF1R mutation; phenotype transformation
类别
资金
- GuangZhou Basic and Applied Basic Research Foundation
- [202201010973]
This article reports a case of a PV patient with a double mutation of JAK2 gene and demonstrates the effectiveness of combination therapy with Ruxolitinib and IFN-α in reducing the burden of mutant alleles.
Double JAK2 mutations have rarely been described in myeloproliferative neoplasms (MPNs) and are demonstrated to be associated with the polycythemia vera (PV) phenotype. Here, we first report a case of a PV patient with a de novo double L611S/V617L in cis mutation of JAK2. A 40-year-old woman was admitted to the hospital with massive splenomegaly, multiple splenic infarcts, and abdominal pain. She had a 4-year history of erythrocytosis with an antecedent 10-year history of thrombocytosis before coming to our hospital. She was diagnosed with JAK2 L611S/V617L double-mutant PV after a detailed medical examination in 2017. According to the literature, IFN alpha therapy can induce clinical, hematological, histopathological, and occasionally molecular remission in individuals with MPNs. Our report demonstrates that combination therapy with ruxolitinib and IFN alpha can lead to a substantial reduction in JAK2 L611S/V617L double-mutant allele burden.
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