JAK2-mutated acute myeloid leukemia: comparison of next-generation sequencing (NGS) and single nucleotide polymorphism array (SNPa) findings between two cases

Autopsy and Case Reports

卷:9

Maria de Lourdes Chauffaille¹  Thiago Rodrigo de Noronha¹  Miguel Mitne-Neto² 

[1] Federal University of São Paulo, Division of Hematology;

[2] Fleury Group, Research and Development;

关键词: Cytogenetics;    Leukemia;    Myeloid;    Acute;    Polymorphism;    Single Nucleotide;   

DOI  :  10.4322/acr.2018.084

来源: DOAJ

【 摘 要 】

JAK2 mutations are rare in de novo acute myeloid leukemia (AML), and JAK2-mutated acute myeloid leukemia (AML) patients usually have a previous history of myeloproliferative neoplasms (MPNs). Current advances in laboratory techniques, such as single nucleotide polymorphism array (SNPa) and next-generation sequencing (NGS), have facilitated new insight into the molecular basis of hematologic diseases. Herein, we present two cases of JAK2-mutated AML in which both SNPa and NGS methods added valuable information. Both cases had leukemogenic collaboration, namely, copy-neutral loss of heterozygosity (CN-LOH), detected on chromosome 9. One of the cases exhibited both JAK2 and IDH2 mutations, most likely having originated as an MPN with leukemic transformation, while the other case was classified as a de novo AML with JAK2, CEBPA, and FLT3 mutations.

【 授权许可】

Unknown