Reference Detail

Ref Type

Journal Article

PMID

(21670448)

Authors

Thol F, Damm F, Lüdeking A, Winschel C, Wagner K, Morgan M, Yun H, Göhring G, Schlegelberger B, Hoelzer D, Lübbert M, Kanz L, Fiedler W, Kirchner H, Heil G, Krauter J, Ganser A, Heuser M

Title

Incidence and prognostic influence of DNMT3A mutations in acute myeloid leukemia.

Journal	Vol	Issue	Date	Pages	Journal Short Title
Journal of clinical oncology : official journal of the American Society of Clinical Oncology	29	21	2011 Jul 20	2889-96	J Clin Oncol

URL

Abstract Text

To study the incidence and prognostic impact of mutations in DNA methyltransferase 3A (DNMT3A) in patients with acute myeloid leukemia.A total of 489 patients with AML were examined for mutations in DNMT3A by direct sequencing. The prognostic impact of DNMT3A mutations was evaluated in the context of other clinical prognostic markers and genetic risk factors (cytogenetic risk group; mutations in NPM1, FLT3, CEBPA, IDH1, IDH2, MLL1, NRAS, WT1, and WT1 SNPrs16754; expression levels of BAALC, ERG, EVI1, MLL5, MN1, and WT1).DNMT3A mutations were found in 87 (17.8%) of 489 patients with AML who were younger than 60 years of age. Patients with DNMT3A mutations were older, had higher WBC and platelet counts, more often had a normal karyotype and mutations in NPM1, FLT3, and IDH1 genes, and had higher MLL5 expression levels as compared with patients with wild-type DNMT3A. Mutations in DNMT3A independently predicted a shorter overall survival (OS; hazard ratio [HR], 1.59; 95% CI, 1.15 to 2.21; P = .005) by multivariate analysis, but were not associated with relapse-free survival (RFS) or complete remission (CR) rate when the entire patient cohort was considered. In cytogenetically normal (CN) AML, 27.2% harbored DNMT3A mutations that independently predicted shorter OS (HR = 2.46; 95% CI, 1.58 to 3.83; P < .001) and lower CR rate (OR, 0.42; 95% CI, 0.21 to 0.84; P = .015), but not RFS (P = .32). Within patients with CN-AML, DNMT3A mutations had an unfavorable effect on OS, RFS, and CR rate in NPM1/FLT3-ITD high-risk but not in low-risk patients.DNMT3A mutations are frequent in younger patients with AML and are associated with an unfavorable prognosis.

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Molecular Profile	Treatment Approach

Gene Name	Source	Synonyms	Protein Domains	Gene Description	Gene Role

Therapy Name	Drugs	Efficacy Evidence	Clinical Trials

Drug Name	Trade Name	Synonyms	Drug Classes	Drug Description

Gene	Variant	Impact	Protein Effect	Variant Description	Associated with drug Resistance

Molecular Profile	Indication/Tumor Type	Response Type	Therapy Name	Approval Status	Evidence Type	Efficacy Evidence	References
DNMT3A mutant	acute myeloid leukemia	not applicable	N/A	Clinical Study	Prognostic	In clinical analyses, mutations in DNMT3A were associated with poor prognosis and shorter overall survival in patients with acute myeloid leukemia (PMID: 22490330, PMID: 21881046, PMID: 21670448).	22490330 21881046 21670448