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dc.contributor.authorDjulbegović, Benjamin
dc.contributor.authorChristmas, Stephen E
dc.contributor.authorMoore, Michael
dc.date.accessioned2010-11-08T10:08:31Z
dc.date.available2010-11-08T10:08:31Z
dc.date.issued1987
dc.identifier.citationDifferentiated HL-60 promyelocytic leukaemia cells produce a factor inducing differentiation. 1987, 11 (3):259-64 Leuk. Res.en
dc.identifier.issn0145-2126
dc.identifier.pmid3470575
dc.identifier.doi10.1016/0145-2126(87)90049-X
dc.identifier.urihttp://hdl.handle.net/10541/114916
dc.description.abstractThe bipotential human promyelocytic leukaemia cell line HL-60 can be induced to differentiate into monocytic or granulocytic cells by treatment with 1,25 dihydroxyvitamin D3 (1,25(OH)2D3) or dimethylsulphoxide (DMSO) respectively. Conditioned media (CM) from 1,25(OH)2D3- or DMSO-treated cells were able to induce monocytic differentiation in fresh HL-60 cells as measured by induction of non-specific esterase and macrophage surface markers. CM from 1,25(OH)2D3-treated cells also led to a dose dependent loss of proliferative capacity in soft agar colony assays. These effects were not due to a toxic effect of the CM or to residual inducer present in the CM. gamma-interferon and GM-CSF were apparently not responsible for these effects. CM from the human histiocytic lymphoma cell line U937 led to only a low level of induction of macrophage differentiation in fresh HL-60 cells. The defect in HL-60 leukaemic cells may therefore be at the level of induction of an autonomously-produced differentiation factor.
dc.language.isoenen
dc.subjectAcute Myeloid Leukaemiaen
dc.subject.meshCalcitriol
dc.subject.meshCell Differentiation
dc.subject.meshCell Division
dc.subject.meshCell Line
dc.subject.meshCulture Media
dc.subject.meshDimethyl Sulfoxide
dc.subject.meshHumans
dc.subject.meshLeukemia, Myeloid, Acute
dc.subject.meshMacrophages
dc.titleDifferentiated HL-60 promyelocytic leukaemia cells produce a factor inducing differentiation.en
dc.typeArticleen
dc.identifier.journalLeukemia Researchen
html.description.abstractThe bipotential human promyelocytic leukaemia cell line HL-60 can be induced to differentiate into monocytic or granulocytic cells by treatment with 1,25 dihydroxyvitamin D3 (1,25(OH)2D3) or dimethylsulphoxide (DMSO) respectively. Conditioned media (CM) from 1,25(OH)2D3- or DMSO-treated cells were able to induce monocytic differentiation in fresh HL-60 cells as measured by induction of non-specific esterase and macrophage surface markers. CM from 1,25(OH)2D3-treated cells also led to a dose dependent loss of proliferative capacity in soft agar colony assays. These effects were not due to a toxic effect of the CM or to residual inducer present in the CM. gamma-interferon and GM-CSF were apparently not responsible for these effects. CM from the human histiocytic lymphoma cell line U937 led to only a low level of induction of macrophage differentiation in fresh HL-60 cells. The defect in HL-60 leukaemic cells may therefore be at the level of induction of an autonomously-produced differentiation factor.


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