title: Comparison of in vitro drug-sensitivity of human granulocyte-macrophage progenitors from two different origins: umbilical cord blood and bone marrow.
abstract: Predictive in vitro hematotoxicity assays using human cells will provide estimation of tolerable level and aid considerably the development of agents with greater therapeutic activity and less toxicity. Human hematopoietic cells can be derived from three sources: human bone marrow by sternal or femoral aspiration, mobilized peripheral blood, or umbilical cord blood samples collected from placentas after deliveries. Because of the difficulties to have a continuous supply of bone marrow cells from normal human donors and the related ethical problems, we performed a study to compare the sensitivity of human bone marrow cells (h-BMC) and human cord blood cells (h-CBC) to chemicals in order to confirm if h-CBC can readily replace bone marrow cells in checking the sensitivity of GM-CFU progenitors to drugs as preliminarily reported in literature. Our results showed that the prediction of IC50 values in human model is quite similar by using h-BMC or h-CBC. On the contrary, the type of medium influenced in a significant way the ICs determination of some drugs.
authors.affiliation: ECVAM European Centre for the Validation of Alternative Methods, Institute for Health and Consumer Protection, Ispra, Italy. laura.gribaldo@jrc.it
authors.forename: L
authors.initials: L
authors.lastname: Gribaldo
authors.forename: S
authors.initials: S
authors.lastname: Casati
authors.forename: A F
authors.initials: AF
authors.lastname: Castoldi
authors.forename: A
authors.initials: A
authors.lastname: Pessina
mesh_terms: D001854:Bone Marrow Cells / Q000187:drug effects*; D002478:Cells, Cultured; D003114:Colony-Forming Units Assay; D004353:Drug Evaluation, Preclinical; D005312:Fetal Blood / Q000166:cytology*; D016179:Granulocyte Colony-Stimulating Factor / Q000494:pharmacology; D016178:Granulocyte-Macrophage Colony-Stimulating Factor / Q000494:pharmacology; D006098:Granulocytes / Q000187:drug effects*; D006412:Hematopoietic Stem Cells / Q000187:drug effects*; D006801:Humans; D007377:Interleukin-3 / Q000494:pharmacology; D015850:Interleukin-6 / Q000494:pharmacology; D008264:Macrophages / Q000187:drug effects*; D019089:Stem Cell Factor / Q000494:pharmacology
chemical_list: D007377:Interleukin-3; D015850:Interleukin-6; D019089:Stem Cell Factor; D016179:Granulocyte Colony-Stimulating Factor; D016178:Granulocyte-Macrophage Colony-Stimulating Factor