title: Persistence of an activating N-RAS oncogene mutation in clonogenic progenitor cells from an acute myeloid leukaemia patient in remission.
abstract: A patient with acute myeloid leukaemia (AML) with an activating N-RAS oncogene mutation was studied in a haemopoietic clonogenic progenitor cell assay. Individual colonies and clusters were analysed by polymerase chain reaction and oligonucleotide hybridization for the original mutation. The mutation was detected in a majority of leukaemic clusters, but also in almost half of the differentiated colonies. After chemotherapy the patient entered clinical remission. However, the mutation could still be detected in the bone marrow. Only differentiated colonies and no leukaemic clusters were grown from the remission bone marrow, but the original mutation was still detectable in almost half of the colonies.
authors.affiliation: Department of Cellular and Molecular Sciences, St George's Hospital Medical School, London.
authors.forename: H A
authors.initials: HA
authors.lastname: Zaheer
authors.forename: M
authors.initials: M
authors.lastname: Bagnara
authors.forename: F M
authors.initials: FM
authors.lastname: Gibson
authors.forename: G
authors.initials: G
authors.lastname: Robinson
authors.forename: T R
authors.initials: TR
authors.lastname: Rutherford
authors.forename: E C
authors.initials: EC
authors.lastname: Gordon-Smith
mesh_terms: D000368:Aged; D001483:Base Sequence; D001853:Bone Marrow / Q000473:pathology; D004273:DNA, Neoplasm / Q000737:chemistry; D005260:Female; D011905:Genes, ras / Q000235:genetics*; D006801:Humans; D015470:Leukemia, Myeloid, Acute / Q000188:drug therapy / Q000235:genetics* / Q000473:pathology; D008969:Molecular Sequence Data; D009154:Mutation; D014411:Neoplastic Stem Cells / Q000502:physiology*; D016133:Polymerase Chain Reaction; D012074:Remission Induction
chemical_list: D004273:DNA, Neoplasm