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PLoS One. 2016 Jan 15;11(1):e0146614. doi: 10.1371/journal.pone.0146614. eCollection 2016.

Prognostic Significance of KIT Mutations in Core-Binding Factor Acute Myeloid Leukemia: A Systematic Review and Meta-Analysis.

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Institute of Hematology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China.
Department of Hematology, Wuhan Central Hospital, Wuhan, 430000, China.
Department of Social Medicine, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China.


The prognostic significance of KIT mutations in core-binding factor acute myeloid leukemia (CBF-AML), including inv(16) and t(8;21) AML, is uncertain. We performed a systematic review and meta-analysis of the effect of KIT mutations on the complete remission (CR) and relapse rates and overall survival (OS) of CBF-AML. PubMed, Embase, Web of Science, and the Cochrane Library were searched and relevant studies were included. Negative effect was indicated on relapse risk of CBF-AML (RR [relative risk], 1.43; 95%CI [confidence interval], 1.20-1.70) and t(8;21) AML (RR, 1.70; 95% CI, 1.31-2.21), not on OS of CBF-AML (RR, 1.09; 95% CI, 0.97-1.23), CR (OR [odds ratio], 0.95; 95% CI, 0.52-1.74), relapse risk (RR, 1.12; 95% CI, 0.90-1.41) or OS (RR, 1.03; 95% CI, 0.90-1.18) of inv(16) AML. Subgroup analysis of t(8,21) AML showed negative effect of KIT mutations on CR (OR, 2.03; 95%CI: 1.02-4.05), relapse risk (RR, 1.89; 95%CI: 1.51-2.37) and OS (RR, 2.26; 95%CI: 1.35-3,78) of non-Caucasians, not on CR (OR, 0.61; 95%CI: 0.19-1.95) or OS (RR, 1.12; 95%CI: 0.90-1.40) of Caucasians. This study indicates KIT mutations in CBF-AML to be included in the initial routine diagnostic workup and stratification system of t(8,21) AML. Prospective large-scale clinical trials are warranted to evaluate these findings.

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