title: Mutation of the ras genes is a rare genetic event in the histologic transformation of follicular lymphoma.
abstract: The role of ras gene mutations in the progression of follicular lymphoma has been ascertained by SSCP-PCR and sequencing. A total of 40 transformed lymphomas were studied, 16 of which had a matched preceding low-grade biopsy. Only one transformed lymphoma was found to have a missense mutation at codon 12 of N-ras, resulting in an amino acid change of glycine to serine. We conclude that mutation within the ras gene family is a rare event in the transformation of follicular lymphoma.
authors.affiliation: Hematopathology Section, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA.
authors.forename: H M
authors.initials: HM
authors.lastname: Clark
authors.forename: T
authors.initials: T
authors.lastname: Yano
authors.forename: C
authors.initials: C
authors.lastname: Sander
authors.forename: E S
authors.initials: ES
authors.lastname: Jaffe
authors.forename: M
authors.initials: M
authors.lastname: Raffeld
mesh_terms: D001483:Base Sequence; D004252:DNA Mutational Analysis; D004273:DNA, Neoplasm / Q000235:genetics*; D018450:Disease Progression; D011905:Genes, ras; D006801:Humans; D008224:Lymphoma, Follicular / Q000235:genetics* / Q000473:pathology; D008228:Lymphoma, Non-Hodgkin / Q000235:genetics / Q000473:pathology; D008969:Molecular Sequence Data; D017354:Point Mutation; D016133:Polymerase Chain Reaction; D018807:Polymorphism, Single-Stranded Conformational
chemical_list: D004273:DNA, Neoplasm