JAK2-negative acute monocytic leukemia with TET2 mutation in essential thrombocythemia with JAK2 mutation with literature review

JAK2-negative acute monocytic leukemia with TET2 mutation in essential thrombocythemia with JAK2 mutation with literature review
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JAK2阴性急性单核细胞白血病TET2突变JAK2突变原发性血小板增多症文献综述

DOI:
10.1016/j.lrr.2019.100194
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发表时间:
2020
影响因子:
--
通讯作者:
Sakura Hiroshi
Sakura Hiroshi
中科院分区:
--
文献类型:
--
作者:
Ogasawara Toshie;Kawauchi Kiyotaka;Ono Takuya;Marshall Shoko;Shide Kotaro;Shimoda Kazuya;Mori Naoki;Sakura Hiroshi

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原发性血小板增多症(ET)是一种惰性骨髓增生性肿瘤(MPN),在<5%的患者中转化为急性髓系白血病。一名79岁男性JAK2V617F阳性ET表现为白细胞增多,单核细胞增多,导致急性单核细胞和单核细胞白血病的诊断。白血病细胞携带TET 2突变,但不携带JAK 2 V617 F突变。我们的结论是TET 2突变发生在MPN起始细胞中,而JAK 2突变的细胞则不存在。本例白血病细胞中JAK2突变的缺失提示白血病来自携带TET2突变的JAK2阴性MPN细胞克隆。
Essential thrombocythemia (ET) is an indolent myeloproliferative neoplasm (MPN) with a transformation to acute myeloid leukemia in <5% of patients. A 79-year-old man withJAK2V617F-positive ET exhibited leukocytosis with an increase in monoblastic cells, leading to a diagnosis of acute monoblastic and monocytic leukemia. Leukemic cells carried aTET2mutation but notJAK2V617F mutation. We concluded that theTET2mutation occurred in MPN-initiating cells and overcameJAK2-mutated cells. The absence of aJAK2mutation in the leukemic cells in this case suggests the leukemia emerged from aJAK2-negative MPN cell clone carrying theTET2mutation.
具有 JAK2 V617F 突变的转化性原发性血小板增多症在同种异体干细胞移植后复发为 JAK2 突变阴性白血病
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