6533b7ddfe1ef96bd1273f95

RESEARCH PRODUCT

Granulocyte-macrophage colony-stimulating factor (CSF) and multilineage CSF recruit human monocytes to express granulocyte CSF

Friedhelm HerrmannAlbrecht LindemannRoland MertelsmannWolfgang Oster

subject

medicine.medical_treatmentImmunologyGranulocyteBiologyBiochemistryMonocyteslaw.inventionColony-Stimulating FactorslawmedicineHumansRNA MessengerGrowth SubstancesCells CulturedCSF albuminCell-Free SystemGrowth factorGranulocyte-Macrophage Colony-Stimulating FactorRNABiological activityCell BiologyHematologyMolecular biologyRecombinant ProteinsDrug CombinationsGranulocyte macrophage colony-stimulating factorSecretory proteinmedicine.anatomical_structureImmunologyRecombinant DNAGranulocytesmedicine.drug

description

Abstract We assessed the capacity of recombinant human granulocyte-macrophage colony-stimulating factor (GM-CSF) and multilineage (Multi)-CSF to induce release of granulocyte-CSF (G-CSF) by highly purified peripheral blood monocyte (Mo) preparations. Our results reveal that GM-CSF and Multi-CSF, either alone or in a synergistic concert, activate Mo to transcribe G-CSF messenger (m) RNA and release biologically active G- CSF protein into their culture supernatants. G-CSF had no regulatory effect on Mo expression of cytoplasmic G-CSF mRNA levels and G-CSF protein secretion by itself. These differential actions of CSFs provide further insight into self-regulatory mechanisms within the growth factor hierarchy system.

https://doi.org/10.1182/blood.v73.1.64.bloodjournal73164