title: Mutation of bcl-x gene in non-Hodgkin's lymphoma.
abstract: The bcl-x gene product has two forms, bcl-xl and bcl-xs. The bcl-xl form, similar to bcl-2, inhibits apoptosis. Reverse transcriptase-polymerase chain reaction/single-stranded conformation polymorphism (RT-PCR-SSCP) gel analysis was used to screen for mutations of the bcl-xl transcript of 50 non-Hodgkin's lymphoma (NHL) cases. One missense mutation in a patient with diffuse large B-cell lymphoma was found. Sequence analysis of this case showed that AGC (Ser) was mutated to GGC (Gly) in codon 154. An examination of mutation and/or polymorphism in born marrow samples of this case and 50 normal controls by the RT-PCR-SSCP method could not detect bandshifts. Mutation of the bcl-x gene in NHL has not been reported previously. There is a possibility that mutation of the bcl-x gene play a role in the tumorigenesis of NHL.
authors.affiliation: Division of Hematology, Department of Internal Medicine, Nippon Medical School, Tokyo, Japan.
authors.forename: Hiroki
authors.initials: H
authors.lastname: Yamaguchi
authors.forename: Koiti
authors.initials: K
authors.lastname: Inokuchi
authors.forename: Miki
authors.initials: M
authors.lastname: Tarusawa
authors.forename: Kazuo
authors.initials: K
authors.lastname: Dan
mesh_terms: D017209:Apoptosis; D005998:Glycine; D006801:Humans; D008228:Lymphoma, Non-Hodgkin / Q000235:genetics* / Q000473:pathology; D009154:Mutation; D020125:Mutation, Missense; D017354:Point Mutation; D018807:Polymorphism, Single-Stranded Conformational; D019253:Proto-Oncogene Proteins c-bcl-2 / Q000235:genetics*; D020133:Reverse Transcriptase Polymerase Chain Reaction; D017422:Sequence Analysis, DNA; D012694:Serine; D051020:bcl-X Protein
chemical_list: C494811:BCL2L1 protein, human; D019253:Proto-Oncogene Proteins c-bcl-2; D051020:bcl-X Protein; D012694:Serine; D005998:Glycine