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DNMT3A Mutations in Patients with Acute Myeloid Leukemia in South Brazil
Joint Authors
Moraes, Lauro
Matte, Ursula
Melchiades, Gabriela
Pezzi, Annelise
Amorin, Bruna
Bittencourt, Rosane
Oliveira, Fernanda
da Silva, Maria Aparecida
Silla, Lúcia
Valim, Vanessa
Pombo-de-Oliveira, Maria S.
Daudt, Liane
Source
Issue
Vol. 2012, Issue 2012 (31 Dec. 2012), pp.1-8, 8 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2012-11-08
Country of Publication
Egypt
No. of Pages
8
Main Subjects
Abstract EN
Acute myeloid leukemia (AML) is a complex and heterogeneous hematopoietic tissue neoplasm.
Several molecular markers have been described that help to classify AML patients into risk groups.
DNA methyltransferase 3A (DNMT3A) gene mutations have been recently identified in about 22% of AML patients and associated with poor prognosis as an independent risk factor.
Our aims were to determine the frequency of somatic mutations in the gene DNMT3A and major chromosomal translocations in a sample of patients with AML.
We investigated in 82 samples of bone marrow from patients with AML for somatic mutations in DNMT3A gene by sequencing and sought major fusion transcripts by RT-PCR.
We found mutations in the DNMT3A gene in 6 patients (8%); 3 were type R882H.
We found fusion transcripts in 19 patients, namely, AML1/ETO (n=5; 6.1%), PML/RARα (n=12; 14.6%), MLL/AF9 (0; 0%), and CBFβ/MYH11 (n=2; 2.4%).
The identification of recurrent mutations in the DNMT3A gene and their possible prognostic implications can be a valuable tool for making treatment decisions.
This is the first study on the presence of somatic mutations of the DNMT3A gene in patients with AML in Brazil.
The frequency of these mutations suggests a possible ethnogeographic variation.
American Psychological Association (APA)
Pezzi, Annelise& Moraes, Lauro& Valim, Vanessa& Amorin, Bruna& Melchiades, Gabriela& Oliveira, Fernanda…[et al.]. 2012. DNMT3A Mutations in Patients with Acute Myeloid Leukemia in South Brazil. Advances in Hematology،Vol. 2012, no. 2012, pp.1-8.
https://search.emarefa.net/detail/BIM-491470
Modern Language Association (MLA)
Pezzi, Annelise…[et al.]. DNMT3A Mutations in Patients with Acute Myeloid Leukemia in South Brazil. Advances in Hematology No. 2012 (2012), pp.1-8.
https://search.emarefa.net/detail/BIM-491470
American Medical Association (AMA)
Pezzi, Annelise& Moraes, Lauro& Valim, Vanessa& Amorin, Bruna& Melchiades, Gabriela& Oliveira, Fernanda…[et al.]. DNMT3A Mutations in Patients with Acute Myeloid Leukemia in South Brazil. Advances in Hematology. 2012. Vol. 2012, no. 2012, pp.1-8.
https://search.emarefa.net/detail/BIM-491470
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-491470