Myeloid leukemia factor 1 (MLF1)

Myeloid leukemia factor 1 (MLF1) is an evolutionarily conserved nucleo-cytoplasmic oncoprotein involved primarily in the regulation of hematopoietic cell lineage commitment, restricting erythroid formation while enhancing myeloid formation. It acts as a transcription factor, stabilizing key regulators such as RUNX1/Lozenge, and is essential for normal blood cell homeostasis. MLF1 is directly implicated in myelodysplastic syndrome and acute myeloid leukemia, often being the target of oncogenic chromosomal translocations such as t(3;5). The resulting NPM-MLF1 fusion protein and MLF1 overexpression are considered disease markers and possible therapeutic targets. While its molecular mechanisms remain incompletely characterized, it interacts with cellular chaperone complexes, controls cell cycle progression, and impacts Notch signaling. Due to its roles in normal cell development and disease, MLF1 is a subject of active research for understanding leukemia pathogenesis and exploring targeted therapies[1][2][5].

Other names

MLF1Myeloid leukemia factor 1NPM-MLF1 fusionHGNC:7125NCBI Gene:4291Ensembl:ENSG00000178053UniProt:P58340

RNAi or gene editing approaches: could silence MLF1 expression in cell and animal models. Potential inhibition of chaperone complex formation (blocking interaction with DNAJ-1/Hsp70 could reduce MLF1 stabilization of RUNX1-ETO). No approved small molecules for direct inhibition of MLF1 in humans.