title: Transcriptional regulation of myeloperoxidase gene expression in myeloid leukemia HL-60 cells during differentiation into granulocytes and macrophages.
abstract: Myeloperoxidase gene transcription in isolated nuclei from HL-60 cells induced to differentiate into granulocytes by dimethyl sulfoxide or into macrophages by 12-O-tetradecanoylphorbol-13-acetate was studied by dot-blot hybridization of a myeloperoxidase cDNA to the 32P-labeled nuclear transcripts. Myeloperoxidase gene transcription, like that of c-myc gene transcription, was reduced to a low level within 12 h after the inductions of these differentiations. In contrast, transcription of the actin gene remained constant. These results indicate that decrease in myeloperoxidase synthesis in HL-60 cells during differentiation is regulated at a transcriptional level.
authors.affiliation: Institute for Protein Research, Osaka University, Japan.
authors.forename: T
authors.initials: T
authors.lastname: Sagoh
authors.forename: M
authors.initials: M
authors.lastname: Yamada
mesh_terms: D002454:Cell Differentiation / Q000187:drug effects; D004247:DNA / Q000235:genetics; D004121:Dimethyl Sulfoxide / Q000494:pharmacology; D004790:Enzyme Induction; D006098:Granulocytes; D006801:Humans; D015470:Leukemia, Myeloid, Acute / Q000201:enzymology / Q000473:pathology*; D008264:Macrophages; D008297:Male; D008875:Middle Aged; D009363:Neoplasm Proteins / Q000096:biosynthesis*; D009195:Peroxidase / Q000096:biosynthesis*; D011518:Proto-Oncogene Proteins / Q000096:biosynthesis; D016271:Proto-Oncogene Proteins c-myc; D012333:RNA, Messenger / Q000032:analysis; D012334:RNA, Neoplasm / Q000032:analysis; D013755:Tetradecanoylphorbol Acetate / Q000494:pharmacology; D014158:Transcription, Genetic; D014407:Tumor Cells, Cultured / Q000187:drug effects / Q000201:enzymology
chemical_list: D009363:Neoplasm Proteins; D011518:Proto-Oncogene Proteins; D016271:Proto-Oncogene Proteins c-myc; D012333:RNA, Messenger; D012334:RNA, Neoplasm; D004247:DNA; D009195:Peroxidase; D013755:Tetradecanoylphorbol Acetate; D004121:Dimethyl Sulfoxide