title: [Immunogenotypes and surface marker analysis in Ph1 positive chronic myelogenous leukemia in the blastic crisis].
abstract: Immunophenotypic and immunogenotypic changes in 23 patients with Ph positive chronic myelogenous leukemia in blast crisis were determined using a panel of monoclonal antibodies and gene probes. According to the immunophenotypes, 9 patients were considered to be in lymphoid blast crisis, including 7 patients with lymphoblastic crisis and 2 patients with lymphoid/myeloid mixed blast crisis. Leukemia cells from the remaining 14 patients showed myeloid phenotypes and 10 of these had platelet-associated antigens. Rearrangement of the immunoglobulin (Ig) gene was observed in all the 9 patients with lymphoid blast crisis, and Ig gene rearrangement was associated with the expression of CD19 antigen. Two patients with myeloid blast crisis showed rearrangements of T-cell-receptor gene, but, dissociation between phenotypes and genotypes was not frequently observed in patients with blast crisis.
authors.affiliation: First Department of Internal Medicine, Tokyo Medical College.
authors.forename: J H
authors.initials: JH
authors.lastname: Ohyashiki
authors.forename: K
authors.initials: K
authors.lastname: Kawakubo
authors.forename: T
authors.initials: T
authors.lastname: Murakami
authors.forename: K
authors.initials: K
authors.lastname: Toyama
mesh_terms: D015703:Antigens, CD / Q000032:analysis*; D001752:Blast Crisis; D015321:Gene Rearrangement; D005838:Genotype; D006801:Humans; D007136:Immunoglobulins / Q000235:genetics; D016130:Immunophenotyping; D015464:Leukemia, Myelogenous, Chronic, BCR-ABL Positive / Q000145:classification / Q000235:genetics* / Q000473:pathology
chemical_list: D015703:Antigens, CD; D007136:Immunoglobulins