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Translocation t(6;7) in AML-M4 cell line GDM-1 results in MNX1 activation through enhancer-hijacking

ABSTRACT: This SuperSeries is composed of the SubSeries listed below.

ORGANISM(S): Homo sapiens

PROVIDER: GSE221753 | GEO | 2023/02/27

REPOSITORIES: GEO

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Translocation t(6;7) in AML-M4 cell line GDM-1 results in MNX1 activation through enhancer-hijacking.

Project description: Not available

| S-EPMC10169647 | biostudies-literature

Translocation t(6;7) in AML-M4 cell line GDM-1 results in MNX1 activation through enhancer-hijacking [ATAC-seq]

Project description:The leukemic cell line GDM-1 was established from a patient with acute myelomonoblastic leukemia [4]. GDM-1 cells carry a reciprocal translocation t(6;7)(q23;q36) juxtaposing the transcription factor (TF) gene motor neuron and pancreas homeobox 1 (MNX1, also designated HLXB9 or HB9) on chromosome 7 (chr7) to the locus of the transcriptional activator MYB on chr6. The translocation does not result in a fusion transcript but leads to aberrant activation of MNX1, suspected to be due to altered topologically associating domains, nuclear positioning or ectopic mechanisms. GDM-1 represents the only AML cell line overexpressing MNX1. Here we demonstrate that the interaction between the MNX1 promoter with a ‘hijacked’ enhancer from the MYB/AHI1 locus leads to ectopic activation of MNX1.

2023-02-28 | GSE221751 | GEO