title: [Immunogenotypic and clonal culture studies in Philadelphia chromosome-positive acute leukemia].
abstract: Molecular analysis and blast colony assay were performed on patients with Philadelphia chromosome-positive acute leukemia (Ph+ AL). All patients were diagnosed as ALL- L2 and 3 were My+ ALL. Nine of the 12 cases had rearranged immunoglobulin heavy chain, and 4 had rearranged TCR beta. TCR gamma rearrangement was noted in 3 patients, and TCR delta involvement was also noted in 6 patients. Clonal culture analysis revealed that leukemia cells of M-BCR rearranged Ph+ AL cases had a potential to proliferate by myelopoietic CSFs and ILs, however, M-BCR nonrearranged Ph+ AL did not. These results indicate biological and immunogenotypic heterogeneity of Ph+ AL.
authors.affiliation: First Department of Internal Medicine, Tokyo Medical College.
authors.forename: J H
authors.initials: JH
authors.lastname: Ohyashiki
authors.forename: T
authors.initials: T
authors.lastname: Tauchi
authors.forename: K
authors.initials: K
authors.lastname: Ohyashiki
authors.forename: K
authors.initials: K
authors.lastname: Toyama
authors.forename: J
authors.initials: J
authors.lastname: Miyauchi
mesh_terms: D000208:Acute Disease; D000328:Adult; D000368:Aged; D005260:Female; D015326:Gene Rearrangement, B-Lymphocyte, Heavy Chain; D015329:Gene Rearrangement, T-Lymphocyte; D005838:Genotype; D006801:Humans; D015464:Leukemia, Myelogenous, Chronic, BCR-ABL Positive / Q000235:genetics* / Q000276:immunology; D008297:Male; D008875:Middle Aged; D054198:Precursor Cell Lymphoblastic Leukemia-Lymphoma / Q000235:genetics / Q000276:immunology; D014407:Tumor Cells, Cultured / Q000276:immunology