Acute Monoblastic Leukemia with t(11;17)(q23;q21): Fusion of the KMT2A(MLL) and MLLT6(AF17) Genes

The KMT2A (formerly MLL) gene is associated with at least 10% of all cases of acute leukemia. More than 80 translocation partner genes of KMT2A have been discovered to date, six of which have been identified on the long arm of chromosome 17. Among these, the MLLT6 (formerly AF17) gene is located at 17q12 and fuses with the KMT2A gene in rare cases of acute leukemia. We report here a case of AML with a KMT2A/MLLT6 fusion that was confirmed using molecular genetic methods. According to a literature review, this is the first reported case of AML with a KMT2A/MLLT6 fusion in Korea.

Research progression of MLLT6 in leukemia / 实用肿瘤学杂志

MLLT6(Myeloid/Lymphoid or mixed-lineage leukemia(Trithorax homolog,Drosophila);Translocated to,6),also known as AF17(ALL1 fused gene from chromosome 17 protein)and located in chromosome 17 long arm 2 zone 1 band(17q21),was originally isolated as a MLL partner gene in leukemia.It has been reported that MLLT6 has the function of maintaining blood pressure stability.MLLT6 synergistically promotes the development of acute myeloid leukemia(AML)as an oncogene or a gene fusion with mixed lineage leukemia(t(11;17)(q23;q21)).This article provides a comprehensive overview of the research progress of MLLT6 and MLL-MLLT6 fusion protein in leukemia.