Establishment of a human acute myeloid leukemia cell line (Kasumi-1) with 8;21 chromosome translocation

Author:

Asou H1,Tashiro S1,Hamamoto K1,Otsuji A1,Kita K1,Kamada N1

Affiliation:

1. Department of Hematology, Hiroshima University, Japan.

Abstract

A novel leukemic cell line with an 8;21 chromosome translocation, designated as Kasumi-1, was established from the peripheral blood of a 7-year-old boy suffering from acute myeloid leukemia (AML). The Kasumi- 1 cells were positive for myeloperoxidase showing a morphology of myeloid maturation. The response in proliferation assay was observed in the culture with interleukin-3 (IL-3), IL-6, granulocyte colony- stimulating factor (G-CSF), and granulocytemacrophage CSF (GM-CSF), but not with IL-1 or IL-5. Neither granulocytic nor eosinophilic maturation was observed in the liquid culture by the addition of dimethyl sulfoxide, G-CSF, or IL-5, respectively. In contrast, induction of macrophagelike cells was seen by the addition of phorbol ester. This is the first report of a human AML cell line with t(8;21) that has characteristics of myeloid and macrophage lineages. The cell line could be a useful tool for elucidating the pathophysiology of AML with t(8;21).

Publisher

American Society of Hematology

Subject

Cell Biology,Hematology,Immunology,Biochemistry

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