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13 February 2025
 
  » pubmed » pmid2986009

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Identification of the human analogue of a regulator that induces differentiation in murine leukaemic cells
N A Nicola ; C G Begley ; D Metcalf ;
Date 18 Apr 1985
Journal Nature, 314 (6012), 625-8
AbstractWe have recently purified murine granulocyte colony-stimulating factor (G-CSF), a regulatory glycoprotein which stimulates granulocyte colony formation from committed murine precursor cells in semi-solid agar cultures. G-CSF is one of a family of colony-stimulating factors that regulate the growth and differentiation of granulocytes and macrophages. While the other murine CSFs (granulocyte-macrophage (GM)-CSF, macrophage (M)-CSF and multi-CSF) show little or no differentiation-inducing activity on murine myelomonocytic leukaemia cell lines, G-CSF (or MGI-2(6)) is able to induce the production of terminally differentiated cells from WEHI-3B and other myeloid leukaemia cell lines. More importantly, G-CSF-containing materials suppress the self-renewal of myeloid leukaemia stem cells in vitro and the leukaemogenicity of treated myeloid leukaemic cells in vivo. It is important to identify the human analogue of murine G-CSF so that its effectiveness on human myeloid leukaemia cells can be assessed. Here we show that an analogue of G-CSF does exist among the CSFs produced by human cells and that the murine and human molecules show almost complete biological and receptor-binding cross-reactivities to normal and leukaemic murine or human cells. The human G-CSF analogue is identified as a species of CSF that we have previously described as CSF-beta.
Source PubMed, pmid2986009
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