Frequency of molecular disorders in Cuban patients with acute myeloid leukemia

Authors

  • Ana María Amor Vigil Instituto de Hematología e Inmunología "José Manuel Ballester Santovenia"
  • Londy Lorena Hernández Miranda Instituto de Hematología e Inmunología "José Manuel Ballester Santovenia"
  • Carmen Alina Díaz Alonso Instituto de Hematología e Inmunología "José Manuel Ballester Santovenia"
  • Vera Ruiz Moleón Instituto de Hematología e Inmunología “Dr José Manuel Ballester Santovenia”
  • Lesbia Fernández Martínez Instituto de Hematología e Inmunología “Dr José Manuel Ballester Santovenia”
  • Ignacio Oliva Hernández Instituto Nacional de Oncología y Radiobiología
  • Heidys Garrote Santana Instituto de Hematología e Inmunología “Dr José Manuel Ballester Santovenia”

Keywords:

nonpromyelocytic acute myeloid leukemias, molecular biomarkers, Cuban patients.

Abstract

Introduction: At the Institute of Hematology and Immunology, the molecular study of acute myeloid leukemias (AML) is carried out. For nonpromyelocytic acute myeloid leukemias, four biomarkers are determined: the RUNX1-RUNX1T1 and CBFb-MYH11 fusion genes, the internal tandem duplication of the FLT3 gene (DIT FLT3), and the “A” mutation of the NPM1 gene (NPM1-A).

Objective: To determine the frequency of these four biomarkers in Cuban patients with nonpromyelocytic primary acute myeloid leukemias.

Methods: 91 patients were included, children and adults, who were studied at the Institute for three years from their disease debut. Complementary DNA was obtained from medullary blood RNA by reverse transcription. The corresponding fragments were amplified by polymerase chain reaction and the product was analyzed by capillary electrophoresis.

Results: RUNX1-RUNX1T1 appeared in 24.2%; it was more frequent in pediatric patients and decreased significantly with age. CBFβ-MYH11 was found only in adults (4.8%). NPM1-A, accounting for 41%, represented the majority among adults. FLT3 DIT was observed in 21.6% and was not related to age. NPM1-A and DIT FLT3 were the disorders with the greatest concurrence.

Conclusions: For the first time, the frequency of the four molecular biomarkers is described in Cuban patients with primary non-promyelocytic acute myeloid leukemias. Its characterization was similar to that described by other authors, although some peculiarities were found.

 


 

 

 

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Author Biographies

Ana María Amor Vigil, Instituto de Hematología e Inmunología "José Manuel Ballester Santovenia"

Departamento de Biología Molecular y Citogenética

Investigadora Titular

Londy Lorena Hernández Miranda, Instituto de Hematología e Inmunología "José Manuel Ballester Santovenia"

Médico Especialista en Hematología

Carmen Alina Díaz Alonso, Instituto de Hematología e Inmunología "José Manuel Ballester Santovenia"

Departamento de Biología Molecular y Citogenética

Investigadora Agregada

Vera Ruiz Moleón, Instituto de Hematología e Inmunología “Dr José Manuel Ballester Santovenia”

Departamento de Biología Molecular y Citogenética

Licenciada en Biología

Lesbia Fernández Martínez, Instituto de Hematología e Inmunología “Dr José Manuel Ballester Santovenia”

Departamento de Biología Molecular y Citogenética

Investigadora Agregada

Ignacio Oliva Hernández, Instituto Nacional de Oncología y Radiobiología

Licenciado en Psicología

Especialista de 1er grado en Bioestadística

Heidys Garrote Santana, Instituto de Hematología e Inmunología “Dr José Manuel Ballester Santovenia”

Departamento de Biología Molecular y Citogenética

Investigadora Titular

Published

2020-12-04

How to Cite

1.
Amor Vigil AM, Hernández Miranda LL, Díaz Alonso CA, Ruiz Moleón V, Fernández Martínez L, Oliva Hernández I, et al. Frequency of molecular disorders in Cuban patients with acute myeloid leukemia. Rev Cubana Hematol Inmunol Hemoter [Internet]. 2020 Dec. 4 [cited 2025 May 12];36(3). Available from: https://revhematologia.sld.cu/index.php/hih/article/view/1164

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Artículos Originales