title: Monoclonal antibodies (NU-T1 and NU-T2) recognizing antigens expressed on human T cells.
abstract: Two murine monoclonal antibodies (mAb) designated as NU-T1 and NU-T2 were generated to identify the novel antigens expressed on human T cells. NU-T1 reacted with peripheral blood T cells, but not with granulocytes or monocytes, whereas NU-T2 were not reactive with peripheral blood lymphocytes, granulocytes or monocytes. Both NU-T1 and NU-T2 reacted with thymocytes. The incidence of NU-T1 or NU-T2 reactivity with the leukemic cells from patients with various types of leukemia was as follows: 12/12 or 4/12 in acute lymphocytic leukemia (ALL) of T cell type, 6/6 or 0/7 in adult T cell leukemia, 0/6 or 0/19 in ALL of non-T non-B cell type, and 0/8 or 0/8 in acute myelocytic leukemia, respectively. The incidence of NU-T1 and NU-T2 reactivity with human leukemic T cell lines were 4/10 and 5/10, respectively. In contrast, neither NU-T1 nor NU-T2 reacted with B cell lines, non-T non-B cell lines, or myeloid cell lines tested. These results indicate that NU-T1 and NU-T2 recognize two distinct differentiation antigens expressed on the cells in the T cell lineage. These mAb would be useful reagents to study the function of human T cells and the immunophenotyping of human T cell malignancies.
authors.affiliation: Department of Transfusion Medicine, Kurume University School of Medicine, Japan.
authors.forename: K
authors.initials: K
authors.lastname: Sagawa
authors.forename: S
authors.initials: S
authors.lastname: Hagiwara
authors.forename: K
authors.initials: K
authors.lastname: Katagiri
authors.forename: M
authors.initials: M
authors.lastname: Sakata
authors.forename: H
authors.initials: H
authors.lastname: Kawano
authors.forename: T
authors.initials: T
authors.lastname: Higashitani
mesh_terms: D000911:Antibodies, Monoclonal / Q000276:immunology*; D000937:Antigen-Antibody Reactions; D002460:Cell Line; D006801:Humans; D011948:Receptors, Antigen, T-Cell
chemical_list: D000911:Antibodies, Monoclonal; D011948:Receptors, Antigen, T-Cell