title: Sodium butyrate and a T lymphocyte cell line-derived differentiation factor induce basophilic differentiation of the human promyelocytic leukemia cell line HL-60.
abstract: Sodium butyrate induces basophilic differentiation of HL-60 promyelocytic leukemia cells that have been previously passaged in alkaline medium. A factor present in Mo conditioned medium (Mo-CM) acts synergistically with sodium butyrate to promote basophilic maturation in a dose-dependent fashion. The induced HL-60 cells exhibit nuclei at various stages of maturity and cytoplasmic granules staining azurophilic with May-Grünwald-Giemsa and metachromatically with toluidine blue. The histamine content of induced HL-60 cells is 50 ng/10(6) cells with sodium butyrate alone or 190 ng/10(6) cells with butyrate in combination with Mo-CM. Induced cells release histamine in response to anti-IgE and have receptors for the Fc portion of human IgE. The basophilic cell-differentiating activity present in Mo-CM appears to be distinct from several other cytokines including recombinant human interleukin-1 alpha, interleukin-2, interferon-gamma, interferon-alpha, murine interleukin-3, erythroid-potentiating activity, and purified human granulocyte/macrophage colony-stimulating factor. This is the first demonstration of a cell line that is capable of differentiation along the basophil lineage and could provide a useful model for examining biochemical and molecular events associated with basophil differentiation.
mesh_terms: D001491:Basophils / Q000032:analysis; D001688:Biological Products / Q000378:metabolism / Q000494:pharmacology*; D002087:Butyrates / Q000494:pharmacology*; D020148:Butyric Acid; D002454:Cell Differentiation / Q000187:drug effects; D002460:Cell Line; D016207:Cytokines; D004357:Drug Synergism; D006636:Histamine Release; D006801:Humans; D015470:Leukemia, Myeloid, Acute / Q000473:pathology*; D008297:Male; D011961:Receptors, Fc / Q000032:analysis; D017455:Receptors, IgE; D013601:T-Lymphocytes / Q000378:metabolism*; D014407:Tumor Cells, Cultured / Q000187:drug effects* / Q000473:pathology
chemical_list: D001688:Biological Products; D002087:Butyrates; D016207:Cytokines; D011961:Receptors, Fc; D017455:Receptors, IgE; D020148:Butyric Acid