title: Immunoglobulin light chain repertoire in hairy cell leukemia.
abstract: Of 166 hairy cell leukemia (HCL) patients, 81 had kappa and 80 had lambda expression. IGKV-J and IGLV-J rearrangement structure was analyzed in 21 HCL patients (11 kappa, 10 lambda). For kappa, IGKV1-5 was most frequent, and the KJ2 gene was over-utilized. For lambda HCL, LJ3 was over-utilized compared to normal. This study significantly adds to previous studies of light chain usage in HCL and is the first to report light chain gene usage. In HCL, we confirm the lack of kappa predominance observed in normal lymphocytes and in chronic lymphocytic leukemia, and note over-representation of several light chain genes.
authors.affiliation: Laboratories of Molecular Biology and Pathology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892-4255, USA.
authors.forename: Evgeny
authors.initials: E
authors.lastname: Arons
authors.forename: Tara
authors.initials: T
authors.lastname: Suntum
authors.forename: Joel
authors.initials: J
authors.lastname: Sunshine
authors.forename: Maryalice
authors.initials: M
authors.lastname: Stetler-Stevenson
authors.forename: Robert J
authors.initials: RJ
authors.lastname: Kreitman
mesh_terms: D005434:Flow Cytometry; D015328:Gene Rearrangement, B-Lymphocyte, Light Chain / Q000235:genetics*; D006801:Humans; D007147:Immunoglobulin Light Chains / Q000235:genetics*; D007135:Immunoglobulin Variable Region / Q000235:genetics*; D007145:Immunoglobulin kappa-Chains / Q000235:genetics*; D007943:Leukemia, Hairy Cell / Q000235:genetics*
chemical_list: D007147:Immunoglobulin Light Chains; D007135:Immunoglobulin Variable Region; D007145:Immunoglobulin kappa-Chains