OCI-AML3 Cells

OCI-AML3 is a human acute myeloid leukemia (AML) cell line derived from a patient with acute myelomonocytic leukemia (FAB classification M4). This cell line is extensively used in leukemia research due to its well-characterized genetic profile and relevance to studying AML pathogenesis and therapeutic response. OCI-AML3 cells are particularly notable for harboring a heterozygous mutation in the nucleophosmin (NPM1) gene, a common alteration in AML that is associated with abnormal localization of the NPM1 protein to the cytoplasm, as well as a DNMT3A R882C mutation, which is implicated in epigenetic dysregulation. These features make OCI-AML3 a highly relevant model for studying key molecular mechanisms in AML.

OCI-AML3 cells grow in suspension and exhibit characteristics of immature myeloid cells with monoblast-like morphology. The cell line has been widely used to study apoptosis, proliferation, and differentiation pathways in AML, as well as the molecular consequences of NPM1 and DNMT3A mutations. It is also a valuable model for investigating the role of epigenetic regulation in leukemogenesis, as DNMT3A mutations are known to contribute to global changes in DNA methylation patterns.

OCI-AML3 is a preferred model for preclinical drug development and screening, particularly for evaluating epigenetic modulators such as DNA methyltransferase inhibitors and histone deacetylase inhibitors, as well as small-molecule inhibitors targeting signaling pathways and anti-apoptotic proteins. This cell line is also utilized in studies examining mechanisms of drug resistance and the development of combination therapy strategies. Overall, OCI-AML3 remains a critical tool for advancing the understanding of AML biology and for identifying novel therapeutic approaches for this aggressive hematologic malignancy.