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Mutations in N-ras predominate in acute myeloid leukemia
JL Bos, M Verlaan-de Vries, AJ van der Eb, JW Janssen, R Delwel, B Lowenberg and LP Colly
Using synthetic oligomers we investigated fresh samples of acute myeloid
leukemia (AML) for the presence of mutated ras oncogenes. Our original
results showed that five of eight samples contained a mutation in codon 13
of the N-ras gene. In a subsequent study involving 37 samples, we found
only one N-ras-13 mutation, and, in addition, mutations in codon 61 of the
N-ras gene in four cases and a mutation in codon 12 of the Ki-ras gene in
two cases. Amplification of ras genes was not observed. We conclude that in
approximately 20% to 25% of AML cases, a mutated ras oncogene is present,
predominantly the N-ras gene. The occurrence of mutations does not
correlate with the cytological features of the leukemia.
Volume 69,
Issue 4,
pp. 1237-1241,
04/01/1987
Copyright © 1987 by The American Society of Hematology

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