title: Establishment of the B cell precursor acute lymphoblastic leukemia cell line MUTZ-5 carrying a (12:13) translocation.
abstract: Continuous leukemia-lymphoma cell lines are important research tools, in particular as starting material for the cloning of recurrent translocations. In 1998, we established the continuous leukemia cell line MUTZ-5 and its two simultaneous sister cell lines MUTZ-6 and MUTZ-7. The primary specimen was obtained from the peripheral blood of a 26-year-old man with B cell precursor acute lymphoblastic leukemia at relapse carrying a t(12;13). The immunoprofile of MUTZ-5 corresponds to that of a precursor B cell. The immunoglobulin heavy chain gene was found to be rearranged. Despite receptor expression, none of the cytokines examined enhanced proliferation; several cytokines had significant inhibitory effects. Giemsa-banding cytogenetics showed the following karyotype which was identical in all three sister cell lines: 45<2n>X, -Y, t(12;13)(p12;q13-14). The karyotype and DNA fingerprinting confirmed the malignant nature and the authenticity of the cell line, excluding cross-contamination with other cells. MUTZ-5 represents a new unique leukemia B cell line; its scientific significance lies in the t(12;13).
authors.affiliation: DSMZ-German Collection of Microorganisms and Cell Cultures, Braunschweig, Germany.
authors.forename: C
authors.initials: C
authors.lastname: Meyer
authors.forename: R A
authors.initials: RA
authors.lastname: MacLeod
authors.forename: H
authors.initials: H
authors.lastname: Quentmeier
authors.forename: J W
authors.initials: JW
authors.lastname: Janssen
authors.forename: L J
authors.initials: LJ
authors.lastname: Coignet
authors.forename: M J
authors.initials: MJ
authors.lastname: Dyer
authors.forename: H G
authors.initials: HG
authors.lastname: Drexler
mesh_terms: D000328:Adult; D001402:B-Lymphocytes; D002881:Chromosomes, Human, Pair 12; D002882:Chromosomes, Human, Pair 13; D016172:DNA Fingerprinting; D006801:Humans; D007621:Karyotyping; D008297:Male; D054198:Precursor Cell Lymphoblastic Leukemia-Lymphoma / Q000235:genetics*; D014178:Translocation, Genetic; D014407:Tumor Cells, Cultured