期刊
EUROPEAN JOURNAL OF HAEMATOLOGY
卷 87, 期 5, 页码 461-463出版社
WILEY
DOI: 10.1111/j.1600-0609.2011.01669.x
关键词
JAK2-V617F; myeloproliferative neoplasms; acute myeloid leukemia; NPM1
类别
We have sought to unravel the molecular biology of a female patient who in 1985 at the age of 55 was diagnosed with a chronic myeloproliferative neoplasm (MPN) and in whom overt acute myeloid leukemia (AML) developed in 2005. To this end, DNA and RNA (extracted from either paraffin-embedded bone marrow (BM) or from BM and/or peripheral blood stored in an RNA/DNA-preserving buffer) were analyzed by qPCR and by capillary gel electrophoresis of PCR products. We found the patient to be JAK2-V617F mutation positive throughout the course of disease, while a mutation of the nucleophosmin (NPM1) gene emerged at AML diagnosis and relapse. The 20-yr lag phase between the polycythemia vera and the AML adds indirect evidence to the growing realization that the leukemic transformation in patients with MPN occurs from in a JAK2 wild-type stem cell.
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