PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 1541284-1 1992 Pretreatment of human polymorphonuclear leukocytes with the recombinant human granulocyte-macrophage colony-stimulating factor (rhGM-CSF) enhances leukotriene biosynthesis in response to a receptor agonist (e.g. N-formyl-methionyl-leucyl-phenylalanine, fMLP) or a Ca(2+)-ionophore (e.g. ionomycin). Ionomycin 287-296 colony stimulating factor 2 Homo sapiens 78-126 1541284-8 1992 However, staurosporine (200 nM), an inhibitor of protein kinase C totally abolished the priming effect of GM-CSF after stimulation with ionomycin. Ionomycin 136-145 colony stimulating factor 2 Homo sapiens 106-112 1541284-10 1992 These results provide evidence that the enhanced arachidonic acid release in GM-CSF-primed polymorphonuclear leukocytes after stimulation with either fMLP or ionomycin involves activation of protein kinase C which, by a still unknown mechanism, reduces the Ca2+ requirement of phospholipase A2. Ionomycin 158-167 colony stimulating factor 2 Homo sapiens 77-83