Infrequent ras activation in chronic myelogenous leukemia (CML): activating 61st codon mutation in the CML-derived cell line, IM-9.
1989
: The proto-oncogene c-N-ras frequently bears point mutations in ANLL cell DNA which endow it with the capacity to transform NIH/3T3 cells in vitro. Chronic myelogenous leukemia (CML) is a neoplasm highly related to ANLL since it involves the same hematopoietic progenitor cells and ultimately transforms to a neoplasm virtually indistinguishable from acute nonlymphoblastic leukemia (ANLL). Thus, we and others have examined ras genes in CML. This report confirms that ras gene activation is a very infrequent event in CML. However, a lymphoblastic cell line derived from a patient with CML did exhibit a novel second exon 61st codon activating mutation of c-N-ras.
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