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PLoS By Category | Recent PLoS Articles
Hematology - Oncology - Public Health and Epidemiology

U2AF1 Mutations in Chinese Patients with Acute Myeloid Leukemia and Myelodysplastic Syndrome
Published: Wednesday, September 19, 2012
Author: Jun Qian et al.

by Jun Qian, Dong-ming Yao, Jiang Lin, Wei Qian, Cui-zhu Wang, Hai-yan Chai, Jing Yang, Yun Li, Zhao-qun Deng, Ji-chun Ma, Xing-xing Chen

Somatic mutations of U2AF1 gene have recently been identified in myelodysplastic syndrome (MDS) and acute myeloid leukemia (AML). In this study, we analyzed the frequency and clinical impact of U2AF1 mutations in a cohort of 452 Chinese patients with myeloid neoplasms. Mutations in U2AF1 were found in 2.5% (7/275) of AML and 6.3% (6/96) of MDS patients, but in none of 81 CML. All mutations were heterozygous missense mutations affecting codon S34 or Q157. There was no significant association of U2AF1 mutation with blood parameters, FAB subtypes, karyotypes and other gene mutations in AML. The overall survival (OS) of AML patients with U2AF1 mutation (median 3 months) was shorter than those without mutation (median 7 months) (P?=?0.035). No difference in the OS was observed between MDS patients with and without U2AF1 mutations. Our data show that U2AF1 mutation is a recurrent event at a low frequency in AML and MDS.
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