AML1-ETO fusion gen: characteristics in acute myeloid leukemia

Revista Cubana de Hematología, Inmunología y Hemoterapia

Garrote Santana, Heidys¹  Gómez Pacheco, Michel²  Amor Vigil, Ana M¹  Díaz Alonso, Carmen¹  Suárez González, Yandi¹ 

[1] Instituto de Hematología e Inmunología, La Habana, Cuba;Instituto de Ciencias Básicas y Preclínicas Victoria de Girón, La Habana, Cuba

关键词: acute myeloid leukemia;    cytogenetic t(8;    21) abnormality;    AML1-ETO;   

DOI  :  

学科分类：生理学与病理学

来源: SciELO

【 摘 要 】

Acute myeloid leukemia (AML) is a heterogeneous bone marrow malignancy where patients with the cytogenetic t(8;21) abnormality represent a subset with specific clinical and biological characteristics. The translocation results in an in-frame fusion of two genes, resulting in a fusion protein of one N-terminal domain from the AML1 gene and four C-terminal domains from the ETO gene. This protein has multiple effects on the regulation of the proliferation, the differentiation and the viability of leukemic cells. The translocation can be detected as the only genetic abnormality or as part of more complex abnormalities. In contrast to other AML patients, the diagnosis of t(8;21) AML can be made even when less than 20 % leukemic blasts are present in the bone marrow. The leukemic cells show specific global gene expression and microRNA profiles; and usually there is a low risk of leukemia relapse after high-dose cytarabine therapy.

【 授权许可】

Unknown