Amplification or duplication of chromosome band 21q22 with multiple copies of the AML1 gene and mutation of the TP53 gene in therapy-related MDS and AML.

Abstract excerpt

Amplification or duplication of the AML1 gene at chromosome band 21q22 was detected by FISH using a locus-specific probe in three out of 171 unselected patients with therapy-related myelodysplasia (t-MDS) or t-AML (1.7%). In two patients AML1 signals were located tandemly on derivative chromosomes, in one patient on a dic(9;21) and in the the other patient on a derivative chromosome 18 made up of interchanging...

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