A novel monoclonal antibody specific for human pre-B cell leukemia/lymphoma.
A novel monoclonal antibody, designated WH14-antibody (WH14-Ab), was produced by using a non-T ALL cell line (HBL-3) as an immunogen. 35S-labelled immunoprecipitate revealed that the antigen reacting with WH14-Ab was estimated to be 30 Kd. Immunoglobulin isotype of WH14-Ab was IgG1. In the normal hematopoietic tissue, WH14-Ab reacted with a small number of monocytes (less than 30%) in the peripheral blood, but neither with the lymphocytes nor granulocytes. WH14-Ab reacted with HBL-3 and REH, but not with other B-cell leukemia/lymphoma and EBV-transformed cell lines. In addition, WH14-Ab reacted with most non-T ALL and pre-B lymphoblastic lymphoma. WH14-Ab did not react with all T-cell lymphomas. These findings indicate that the WH14-Ab may recognize the cell surface determinant shared by immature B cells, especially pre-B cells, in the B-cell lineage. WH14-Ab may be useful not only for the detection of pre-B cell leukemia/lymphomas but also for the investigation of maturation and differentiation of B-cell lineage.
Nakamura
N
N
Department of Pathology, Fukushima Medical College, Japan.
Morimura
Y
Y
Abe
M
M
Wakasa
H
H
D000818:Animals; D000911:Antibodies, Monoclonal / Q000276:immunology*; D000951:Antigens, Neoplasm / Q000032:analysis*; D000954:Antigens, Surface / Q000032:analysis*; D001402:B-Lymphocytes; D001773:Blood Cells; D001853:Bone Marrow / Q000473:pathology*; D002460:Cell Line; D006689:Hodgkin Disease / Q000473:pathology*; D006801:Humans; D051379:Mice; D008807:Mice, Inbred BALB C / Q000276:immunology; D054198:Precursor Cell Lymphoblastic Leukemia-Lymphoma
D000911:Antibodies, Monoclonal; D000951:Antigens, Neoplasm; D000954:Antigens, Surface