Open AccessCharacteristics and prognostic significance of genetic mutations in acute myeloid leukemia based on a targeted next‐generation sequencing technique
Author(s) -
Wang RuiQi,
Chen ChongJian,
Jing Yu,
Qin JiaYue,
Li Yan,
Chen GuoFeng,
Zhou Wei,
Li YongHui,
Wang Juan,
Li DaWei,
Zhao HongMei,
Wang BianHong,
Wang LiLi,
Wang Hong,
Wang MengZhen,
Gao XiaoNing,
Yu Li
Publication year - 2020
Publication title -
cancer medicine
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.403
H-Index - 53
ISSN - 2045-7634
DOI - 10.1002/cam4.3467
Subject(s) - cebpa , npm1 , mutation , myeloid leukemia , biology , cancer research , oncology , gene mutation , neuroblastoma ras viral oncogene homolog , mutation frequency , genetics , medicine , gene , karyotype , chromosome , kras
To explore the characteristics and prognostic significance of genetic mutations in acute myeloid leukemia (AML), we screened the gene mutation profile of 171 previously untreated AML patients using a next‐generation sequencing technique targeting 127 genes with potential prognostic significance. A total of 390 genetic alterations were identified in 149 patients with a frequency of 87.1%. Younger age and high sensitivity to induction chemotherapy were associated with a lower number of mutations. NPM1 mutation was closely related to DNMT3A and FLT3 ‐internal tandem duplication ( FLT3 ‐ITD) mutations, but mutually exclusive with ASXL1 mutation and CEBPA double mutation . In univariate analysis, ASXL1 or TET2 mutation predicted shorter overall survival (OS) or relapse‐free survival (RFS), DNMT3A , FLT3 ‐ITD, or RUNX1 mutation predicted a higher likelihood of remission‐induction failure, whereas NRAS mutation or CEBPA double mutation predicted longer OS. Concurrent DNMT3A , FLT3‐ITD, and NPM1 mutations predicted shorter OS. Hypomethylation agents could improve the OS in patients with DNA methylation‐related mutations. According to multivariate analysis, TET2 mutation was recognized as an independent prognostic factors for RFS. In summary, our study provided a detailed pattern of gene mutations and their prognostic relevance in Chinese AML patients based on targeted next‐generation sequencing screening.