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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)

Establishment of a cell line with AML1-MTG8, TP53, and TP73 abnormalities from acute myelogenous leukemia.

Gene alterations accumulate during the progression of acute myelogenous leukemia (AML) to a malignant clone. Here, a new myeloid cell line, designated YSK-21, with the balanced t(8;21)(q22;q22) and the unbalanced der(1)t(1;17)(p36;q21), was established. YSK-21 grows well in a medium containing recombinant human granulocyte colony-stimulating factor (rhG-CSF), granulocyte-macrophage colony-stimulating factor (rhGM-CSF), or interleukin-3 (rhIL-3). Molecular analysis using the reverse transcriptase-polymerase chain reaction (RT-PCR) and fluorescence in situ hybridization (FISH) revealed that t(8;21)(q22;q22) resulted in an AML1-MTG8 fusion transcript. FISH and spectral karyotyping (SKY) in conjunction with G-banding analysis revealed a der(1)t(1;17)(p36;q21) chromosomal translocation, which appeared in the clone developed from the original leukemic cells. Molecular analysis of the TP73 gene on 1p36 and the TP53 gene revealed a deletion of one-allele in TP73 with partial demethylation of another allele in the initial clone of YSK, and a point mutation consisting of an A-->T substitution in codon 288 of the TP53 gene in the developed clone of YSK-21. YSK-21 cells, expressing aberrant AML1-MTG8, TP53, and TP73 protein molecules, may be useful for elucidating the pathophysiology of these aberrant proteins and for studying the der(1)t(1;17)(p36;q21) chromosomal translocation.[1]


  1. Establishment of a cell line with AML1-MTG8, TP53, and TP73 abnormalities from acute myelogenous leukemia. Inokuchi, K., Hamaguchi, H., Taniwaki, M., Yamaguchi, H., Tanosaki, S., Dan, K. Genes Chromosomes Cancer (2001) [Pubmed]
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