Abstract
Rearrangements of the MLL gene located at 11q23 are common chromosomal abnormalities associated with acute leukemia, especially infant and therapy-related leukemias. A variety of chimeric oncoproteins resulting from these rearrangements has been described; all of these include the NH(2)-terminal region of MLL implicated in protein-protein interactions and transcriptional repression. Although the molecular basis for the oncogenic activity of MLL chimeric proteins is incompletely understood, it seems to be derived, at least in part, through activation of clustered homeobox (HOX) genes. Here, we survey MLL gene rearrangements that are associated with acute leukemia and discuss molecular pathways leading to these rearrangements.
MeSH Terms
Gene Fusion
Gene Rearrangement
Histone-Lysine N-Methyltransferase
Humans
Infant
Leukemia/genetics
Leukemia, Myeloid, Acute/genetics
Leukemia, T-Cell/genetics
Myeloid-Lymphoid Leukemia Protein/genetics
Precursor Cell Lymphoblastic Leukemia-Lymphoma/genetics
Chemicals
KMT2A protein, human
Myeloid-Lymphoid Leukemia Protein
Histone-Lysine N-Methyltransferase
Authors & Affiliations
2 authors, click to expand affiliations / ORCID
Harper David P
Genetics Branch, Center for Cancer Research, National Cancer Institute, NIH, Bethesda, Maryland 20889, USA.
Aplan Peter D
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