title: HL-60-1E3, a novel phorbol diester-resistant HL-60 cell line.
abstract: The HL-60 (human promyelocytic leukemia) cell line has proved to be a useful model for the study of the expression of cellular functions and markers associated with hematopoietic differentiation. We report here the development and initial characterization of a novel, differentiation-resistant HL-60 cell line (HL-60-1E3) which was established by cloning the parent HL-60 line in the absence of mutagens or differentiation-inducing agents. HL-60-1E3 exhibits markedly reduced phorbol diester-induced expression of extracellular cytolytic activity, nonspecific esterase, phagocytosis, and surface Mo1 antigen. In addition, dimethyl sulfoxide-induced expression of both Mo1 and Mo2 is markedly reduced. However, if HL-60-1E3 is exposed to dimethyl sulfoxide, it acquires appreciable phorbol diester-triggered cytolytic activity and production of superoxide anion (O2-). Phorbol diester receptor number and dissociation constant (Kd) obtained by Scatchard analysis are not significantly different for the two cell lines. The HL-60-1E3 cell line should provide a useful adjunct to other cell lines used in the study of normal myeloid and leukemic cell differentiation, as well as the study of cytokine maturation factors and oncogene expression.
mesh_terms: D000911:Antibodies, Monoclonal / Q000276:immunology; D000951:Antigens, Neoplasm / Q000032:analysis; D029742:Caenorhabditis elegans Proteins; D002352:Carrier Proteins; D002448:Cell Adhesion; D002454:Cell Differentiation / Q000187:drug effects; D002460:Cell Line; D004121:Dimethyl Sulfoxide / Q000494:pharmacology; D006801:Humans; D015470:Leukemia, Myeloid, Acute / Q000378:metabolism / Q000473:pathology*; D010587:Phagocytosis; D015240:Phorbol 12,13-Dibutyrate; D010703:Phorbol Esters / Q000378:metabolism / Q000494:pharmacology*; D011493:Protein Kinase C; D011955:Receptors, Drug; D011971:Receptors, Immunologic / Q000032:analysis; D013481:Superoxides / Q000378:metabolism
chemical_list: D000911:Antibodies, Monoclonal; D000951:Antigens, Neoplasm; D029742:Caenorhabditis elegans Proteins; D002352:Carrier Proteins; D010703:Phorbol Esters; D011955:Receptors, Drug; D011971:Receptors, Immunologic; C083141:phorbol ester binding protein; C027776:phorbol ester receptor; D013481:Superoxides; D015240:Phorbol 12,13-Dibutyrate; D011493:Protein Kinase C; D004121:Dimethyl Sulfoxide